ML20017A151

E117-1017, Rev 1, Operations and Maintenance Manual NMP-1000 Linear Power Channel - Redacted

ML20017A151
Person / Time
Site:	University of Lowell (R-125)
Issue date:	01/06/2020
From:	General Atomics, Xerox Corp
To:	Office of Nuclear Reactor Regulation
References
GA/EMS-4791 E117-1017 Rev 1
Download: ML20017A151 (33)

Text

arseam xerox*

arseam E1 l7-1017 NMP-1000 Manual Rev 11991_REDACTED.pdf 01 /06/20 09:16 AM Xerox WorkCentre 7855

[

r

~

b C

[.

G

[

[

G C

e

[

B t

l L

L~

TRIGA,:'f, Reactors E117-1017 REVISION 1 OPERATION AND MAINTENANCE MANUAL NMP-1000 LINEAR POWER CHANNEL

~

~

~

• ~..

Copyright General,iAtomics,:1.9_91 All Rights 1Jeserved

+ GENERAL A'rOMICS

[,

r c

~

l

[

G r

C

[

E Page Number i through vi 1-1 2-1 through 2-9 3

4-1 through 4-13 5

Total Pages LIST OF EFFECTICE PAGES Page count 6

1 9

0 13 l

30 i

Revision 0

0 0

0 0

0 Ell7-1017/Rav. 1

.L

t.

~

L' t

t t*

r Although General Atomics has attempted to compile the material contained in this issuance with accu-racy, neither *it, its employees, nor its agents can make any warranty or representation, expressed or implied, with respect to the accuracy or complete-ness of such information or assume any liability with regard to the use of or for damages resulting from the use of any information, apparatus, method, or procedure described in this issuance.

ii Rl17-1017/Rev. 1

[

f!

f E

f

[

PNiGER - HIGH VOLTAGE When this equipnent is 9nargized, voltages approaching 1000 V are present.

Use extreme caution whan performing calibration, installation, or maintenance.

iii Bl17-1017/Rav. 1

r L~

E

~

~

g

[

F L

[.

C

.l b

t E

ii t*

t..

l*

[

CONTENTS GXNBRAL DBSCRIPTION * * * * * * * *

1.

SPECIJ'ICATIONS **

2.

TBBORY OP OPRlm.TION.

4.

2.1.

INPUT SECTION.

2.1.1. Range Switching Ralaya.

2.1.2. Ranqe Selection (Manual) *****

2.1.3. Ranqe Selection (Auto) **

2.1.4. Computer Control *****

2.2.

'?RIP CIRCUITS.

2.3 2.2.1. Bistable Tripa.

2.2.2. HV Trip 2.2.3. Power Level Trips TRST ll'ONCTIOUS 2.3.1. Power up Reset.

2.3.2 Teet Functions 2.3.2. Time Delay Reset * **.

2.3.3. Punction Select Counter 2.3.4. Teat current Source* **

• 2. 4.

POWER SUPPLIES 2.4.1. High-Voltage Power Supply 2.4.2. Low-Voltage Power Supply.

2.4.3. Compensating Power Supply 2.5.

OUTPUTS AND ISOLATION DEVICES NMP-1000 CALIBRATION/TEST PROCEDURB.

4.1.

LOW-VOLTAGE POWER SUPPLY TEST

• 4.3.

BLECTROMBTER CALIBRATION 4.4.

AUTORANGE SWITCH POINTS ***

4.5 TRIP SET POINTS *******

4.6 ISOLATION AMPLIFIER PCB ALIGNMENT **

4.7.

COMPKNSA1'ION PCB

4. 8.

HIGH-VOLTAGE POWER SUPPLY 4.9.

TEST/CALIBRATE FUNCTIONS **

S.

MAINTENAJICE AND DRAWINGS 1-1 2-1 PIGURBS NMP-1000 Pula* Monitoring Channel.

NMP-1000 function flow diagrAm iv V

1-1 2-1 2-1 2-1 2-1 2-3 2-4 2-5 2-5 2-5 2-6 2-6 2-6 2-6 2-6 2-6 2-7 2-8 2-8 2-8 2-8 2-9 4-1 4-1 4-3 4-5 4-6 4-8 4-9 4-10 4-11 5-1 vi 2-2 Ell7-1017/Rev. 1

f i ~-

t' 6

(

[~

G

[

e; t

L

(,

l

[;

t t,

t~

(~

"L-,-*

r GENERAL DESCRIPTION The NMP-1000 pulaa ut0nitoring channel (Fig. l) i* a linear manual and automatic range iswitching current-to-voltage signal conditioning davice which includes adjustable bistable trip circuits for local and rmoot* alarms, and isolated current outputa for diaplay by other devices.

The inatrumant il!I packaged in a flameproof steel enclosure with metallic conduit connactora.

V E117-1017/Rav. l

• A8'd/ L tot-L tut lA 1auuvqo 6u.~o~luox astnd ooot-dHN

• t *6l&

J J

i;l 3

]

j

J

J

..1

'J

~:]

-*1*

']

-)

g J

'.2a_.,-~

~J,

r,

~

r, k~

[

fl f:

r C

t,

[

L C

[.

(

fa

~

ti t-

[.

Input Range Linearity Temperature coefficient calibration/teat Reepon*e time constant Output&

Bistable tripa Power required

1.

SPECIPICATIONS 10-11 to lo-4 A or 10-JO A to lo-' A in aeven one d&cade rangea.

Self-bailing illuminated pushbutton or automatic rang*

switching (manual or auto, operator selected).

Provision for remote range switchinq.

+/-1.01 of full acale upper 5 ranges, +/-2.51 of full scale lower 2 rangea.

+/-0.151/ 0 c maxi.mum in the range of 10° to 55°c.

Two fixed current* for calibration, one adjustable current for multi-range function test and trip testing.

HV trip test, test modes selected sequentially by front panal control.

1 msec lo-' to 10~ A; 10 Dllillec 104 to 104 A; 100 msec to 10-11 to 104 A.

Remote meter:

0-10 V full seal*

Remote mater:

0-1 mA full *cale Recorder:

0-0.1 V full scale Recorders 0-1.0 V full scale Optional:

4-20 mA full scale High voltage:

300 to 800 V de at 2.6 W Compensation:

0 to -150 V de Hiqh voltage trip Adjuatable with +5 V High power trip logic lQvel and two High pow&r alarm form C contacts per trip 117 V ac +/-101, 50/60 Hz at 1.0 A 1-1 Ell7-1017/Rev. 1

[

[,

f

[

t.

C L:

r

2.

THEORY OF OPERATION Refer to the schematic diagram at the back of this document and Figure 2-1.

2.1.

INPUT SBCTIOlf 2.1.1. Range switching Relays The detector current applied to Jl ia connected to the electrometer circuit via X611, a low-leakage reed relay, used to disconnect the detector during test and calibration.

The electromater conaiata of AR601 and aseociated gain control resistora and relays.

AR60l is used a* an inverting amplifier with a maximum gain of 1 z 10*12 am.pa/volt sat by the :feedback network consiating o:f R603, R605 and R604 ( 10-11 GAIN).

X601 is a low-leakage reed relay uaed to diaconnect all feedback reeistors for the higher currant ranqe11.

At 10-to amps full scale and above, K601 is cloaed.

K602 and K603 are cloeed at 104 ampe full scale and above.

The net gain is raduced by 901 as each aucceasive divider circuit is switched in.

e:ach relay is driven by one section of a Darlington array (U408 and 0409).

K610 ia driven by Q603 in test moda.

2.1.2. Range selection <Manual)

The range switching relays may be saleoted manually or through th*

auto *ranging logic circuitry.

Manual selection is performed by closing the appropriate *action of S201 (S201-A through S201-X) which is an interlocked, 10 position self-bailing switch array.

As a range selection is made, the switch provides a ground (logic low) signal to one input of 0404, a decimal to BCD (Binary Coded Decimal) encoder.

The BCD encoder provides low logic outputa to 0405 (str~bad hex inverter) which are inverted to operate 0406, a praBetabla BCD counter enabled by using logic high inputs.

U405 is a 3-state device auch that the counter may be preset by an external system.

The BCD output from the counter ie decoded by 0407 which provides logic level outputs to the relay drivera and ranga indicator LED's.

2-1 Bll7-l017/Rev. 1

L TINa IIG.ATIID

~

j IGiZTllll UNm C>>.LD TO r-w--....lL................

CINIUTl!R r+---*,1, g

fllNff%IIN -.-r:.

~

CIIII.Wl'DI laA......v,.J. H.Y,...

c:

E I I I I

~

lfV TaT

~

r----

r------.

l ~

~T r------.

~

IICD TO l --

La r------.

TUT~

IIOUIIOltll r------.

llOoJ &O C-SIJ TD &O f,-aJ

~

~

[

"7 I.OW "1.. so C-U.I

~

~

to so HO)

IIU.AT t-ill f-oel r'-

It-so....

I'-,... '° H7I I'-

&- ao 1-0aJ

[

Ol'l!Mffl' r-,...

It- :Ml (-NI 11,

~

II- :Ml f-4MI TIIIIT a-. :DIPl1r Lall t- '° I-UI L&ucMII TIUP *u I

I MI.AY TIUP Ha r: It' nm> -

nm> -

C LOI tfV

'LmYa. ffUp

~

I

}

I

-* va.T"8 o T1I H

&IIO ¥DC

-TION Lava. ffUp a,._ C

--._y a-t TAP H,Y,TIIIP ua1111 uz VOLT...

T1I -

YDa

~TOIi H,Y. N.,.°"

,l H.Y. -._y uz J:IIOI.A TOIi

}

rig. 2-1.

NMP-1000 function flow diagram t

2-2 Ell7-1017/Rev. l r.-.

~

~

~

t::z.

C v

~

~

1....

l G

E r~

r~ c

£.

I r

1::::-

r t

r Aa an example, S201-F (104 range) is pressed providing a ground (logic low) to 0404-12 which is the input selection for decimal "2".

The output of the encoder 0404 is binary equivalent of the decimal number "2" (0010) at U404 pine 9, 7, 6 and 14 respectively.

The logic levels are inverted by U405 and preset into U406.

The output of U406 is decoded by 0407 from the binary 0010 to provide a logic high on 0407-2 which drives U408G to illuminate DS206 (104 LED) and K604.

The output of 0407-2 is also applied to 0410-5 providing the logic to drive 0409-E, F and G to power K601, K602 and K603 respectively.

These relays provide the required resistive feedback to the electrometer circuits to provide 104 amps full scale.

2.1.3.

Range Selection (Auto)

R416 The output of the electrome r amplifier (AR601) is buffered by AR401 (meter amplifier) on the di tal board.

The output of this amplifier also drives two compar tors AR402A (down level) and AR402D (up level).

R424 is adjusted top ovide a DC voltage at AR402-13 as the setpoint for the up level sw* ch point.

When the input voltage at AR402-12 is more positive than a AR402-13, the UP comparator is driven to a logic high at pin 14.

R4 is adjusted to provide a DC voltage at AR402-3 as the setpoint for the down level switch point.

When the input voltage is more negative than at AR402-2, the DOWN comparator is driven to a logic high at pin l.

The switch points are nominally adjusted for 1081 (9.00 VDC) of the POWER meter full scale for the UP level comparator and 81

(.667 VDC) for the DOWN level.

Diodes D411 and D413 disconnect the comparator outputs from the UP/DOWN select logic when the meter amplifier voltage is between a, and 1081.

0414 Assume that the detector current is 5 x 104 amps and that the has been stable for some time.

The detector current increases to 3 As the meter amplifier (AR401) voltage increases it is felt on the

• nputs of both AR402A and AR402D.

When the voltage at AR402-12 is at 9.00 and becomes more positive than pin 13, the output of AR402-14 swings po *tive which provides a logic high to one input of U411B.

Diodes D412 and C4l4 provide an or gate for the inputs from the UP and DOWN comparator outputs.

The other input is from the clock (U411C and U411D).

When both input* of U411B are high, the output of 04118 ia low.

The clock pulse from 0411C and U411D will toggle the output at about lHZ.

This clock pulse is applied to 0406-15 which advances one decimal increment for each positive transition of the clock if 0406-10 is held high by the 2-3 E117-1017/Rev. 1

[

fj s

G L

r-f~

L UP/DOWN aalect logic of 0411A (0406 will decrement one count for each positive transition of the clock if 0406-10 is held low by the UP/DOWN select logic of U411A).

Aa 0406 advances, the decoded count will shift the high signal from 0407-2 to 040715 which will energize K605 and illuminate DS205 (10-7) and de-energize K604, changing the aanaitivity from 1 x 10-1 to 1 x 10*1 full scale.

The meter amplifier voltage will then be about 1.0 V so both comparator outputs will be low, the clock gate will be inhibited and U406 will neither increment nor decrement.

When the detector current decreases, the meter amplifier (AR40l) output voltage decreases at the inputs of AR402A and AR402D.

As the voltage at AR402A decreases to the DOWN level switch point applied to AR402-3, the output of comparator AR402A swings positive.

This logic high is applied to one input of U411A which causes the output to go low.

The output of the UP/DOWN select logic gate (0411A) goes to U406-10 which will allow the counter to decrement the decimal count when the clock pulses are input to U406-15.

As 0406 decrements, the decoded count will shift the high signal from 0407-15 to 0407-2 which will energize K604 and illuminate DS206 (10.. ) and de-energize K605, changing the sensitivity from l x 10*7 to 1 x 10-1 full scale.

The meter amplifier voltage will then be about a.a V so both comparator outputs will be low, the clock gate will be again inhibited and 0406 will neither increment nor decrement.

2.1.4. Computer Control Provision is made for remote and computer control.

When Remote control is selected by S202, K50l, KS02 and KS03 are energized to switch the range control function to an external bailing switch connected to J6.

"Dry" switch contacts and auxiliary LED outputs are available.

Counter 0406-1 is a preset enable input which allows the operator to "jam" control parameters from local and remote control sources regardless of the input current.

When U406-l is low, the "jam* inputs are ignored and the clock controls the counter.

The three state inverting u401 buffera (U402 and U405) are used to determine local or external control over the preset parameters.

When S204 is switched to computer cont position, the output circuits of U405 are disabled due t o hi and 0402 is enabled to accept BCD control from buffer 040-.

provided to U402 from the input buffer U401 and when computer control is selected by S204, the BCD output of U402 provides the input to 0406 for range selection.

U401 is used as a buffer to convert the S volt logic 2-4 Ell ;-1017 /Rev. l

( '

t..

b' g

[.

[)

C.

--t:"

r:*

[~

r '.,

[.

f ti 8

G-t~~;.

t*

t-

~**

from the Flux Controller to the 15 volt level required by the NMP-1000.

output BCD signals are buffered by U403 for use by the Flux Controller.

The optional Flux Controller communicates via RS232C to external devices as required by the customer.

2.2.

TRIP CIRCUITS 2.2.1. Bistable Trips Three bistable trips are used to alarm on low high-voltage and two independently adjustable levels of output power.

Three relays (K404, K405, and K406) are provided with two sets of normally open and normally closed contacts for customer use.

The relays are held energized in a fail-safe condition until an alarm de-energizes the coil.

2.2.2. HY Trip AR403 monitors the 100:1 voltage divided output of PS101 (3 to 8 volts) representing 300 to 800 volts DC detector bias voltage.

R462 (HV TRIP SET) is set for a minimum desired operating voltage.

If 700 VDC is the minimum detector operating voltage, R462 would be adjusted to provide 7 VDC at AR403-9.

With the PS10l operating at above 700 VDC, AR403-9 will remain more negative than AR403-l0 which will keep the output at pin 8 positive (+13 to +14.5), thereby holding Q408 in conduction which keeps K406 energized.

If the high voltage drops below the nominal setting of 700 VDC, the potential at AR403-10 will be more negative than AR403-9 and the output of AR403-8 will swing negative turning off Q408.

With Q408 not conducting, the +15 VDC will be removed from the coil of -1(406.

U4l8D is normally turned on by R458 to +15 VDC and when AR403-8 goes negative, current passes through the phototransistor of 04180 which cause D426 and R465 to bias the comparator AR403C in a latched state.

The low input to U419 is inverted twice providing a low to 0421-6 allowing LED D221 (HV TRIP) to illuminate and turning on the phototransistor in U421C to provide a logic level output for external use.

The output of AR403C will stay low keeping K406 de-energized until the high voltage monitor output form PS101 is increased above the setpoint voltage at AR403-9 and S206 (TRIP RESET) is pressed.

When S206 is pressed, the ground will turn off U418 allowing the output of AR403C to swing positive.

The high output of AR403C will bias Q408 to conduct which will energize K406 removing the tripped condition.

The high output of 2-s Ell7-l017/Rev. l

{~ --

~

~~*

f~

r~

~~-

(~

~

f

[

'~

-~-

[

B E

r G

{~.;

AR403 will again be inverted twice by 0419A and U420F to turn off 0421C which will turn off LED 0221 (HV TRIP).

2.2.3.

Power Level Trips The power level tripa operate in a similar manner except that the monitored signal is applied to the negative input terminal of AR403A and AR403B so the trip occurs on an increasing signal.

2.3.

TEST FUNCTIONS s205 2.3.1 Power up Reset There are five

, CAL HI, CAL LOW, CURRENT HV TEST.

The mode is selected by pressing 202 (TEST/CALIBRATE) which steps decade counter 0412 through successive test modes.

When circuit power is applied, 0413-9 will momentarily be at logic high until

+15 voe is discharged through C402 and R408.

The logic high is twice inverted by UU413D and 0413A to provide a logic high on 0412-15 to reset the decade counter to its initial condition, placing the system in the OPERATE mode.

2.3.2. Time Delay Reset u413-5 The Time Delay Reset provides an automatic switching function to return the NMP-1000 t the OPERATE mode from any previously selected* Test mode.

The RC t ime constant of R473 and C424 connected to 0423A-9, provide a reset dela~

f approximately SO seconds.

Selecting a test mode applies +15 V to 0423-5.

This provides a logic low to 0423-1 which after inversion through U423A and U423F, discharges C424 through D430.

R473 and C424 start recharging at 0423-9 which will provide a logic low at 0423-8 which is then inverted through 0423C to provide a momentary high logic level on the normally held low input to 04238.

This pulse is then inverted at 0423-4 and applied to 0413-1 as a momentary low logic pulse which is inverted to provide a logic high to the RESET input of 0412-15.

This will reset the Function Select Counter to the OPERATE condition.

2.3.3. Function Select Counter The function select counter enables sequential selection of the TEST/CALIBRATE modes and OPERATE mode of the NMP-1000.

Manual selection 2-6 E117-1017/Rev. 1

[

I

~

t~

k l

§ f

[

w

~

rs

~

~

L r

t

~ ~ -ach mode is accomplished by pressing the SELECT pushbutton in the

~CALIBRATE section of the front control panel.

Pressing the SELECT (S202) pushbutton provides a +15 V high logic level to 0413-5 which ia inverted twice by U413C and 04138 to provide a logic high to 0412-14 (CLK).

0412 advances one count for each positive transition (logic high) applied to the clock input.

The count is internally decoded and appears as a logic high on the appropriate output pin QO to Q9.

The TEST/CALIBRATE or OPERATE modes are selected as the output of "OR" gates U414C (OPERATE), U414D (CAL HI), 0415B (CAL LO), U414B (TEST CURRENT) and 414A (HV TEST).

AS 0412 is advanced. the QO through Q9 outputa provide a logic high to one input of one of the "OR" gates until the OPERATE mode is reselected.

The output of U414C (OPERATE} ia applied as a logic high to U417A which is inverted to provide a ground to the OPERATE LED and also the U416D and U416E as +15 volts to arm the TRIP 1 and TRIP 2 alarm circuits.

The output of U414D (CAL HI) is applied to hex i nverters U413F to force the RANGE SELECT to 10~, and U413C to provide a ground to the CAL HI LED for illumination.

U414D al so provi des t he +15 volt source for the CAL HI test current.

U415B provides the voltage source for the CAL LO t est current and the i nput t o LED driver U417D to illumi nate the CAL LO LED.

The output of U~

B also is applied to "OR" gate U415A to force the RANGE SELECT switch circuit into the AUTO RANGE mode through U413E.

The output of 04148 (TEST CURRENT) provides the ground for the TEST CURRENT LED through U417B and an input to "OR" gate U415A to force the RANGE SELECT switch circuit into the AUTO RANGE mode through 0413E.

U414B also provides +15 volts to the TEST CURRENT source.

U414A provides the logic to illuminate the HV TEST LED through U413E and the bias to Q407 to test the HV Clamp circuit.

The four TEST/CALIBRATE modes are indicated by illumination of the appropriate LED in the TEST/CALIBRATE section of the front control panel.

The OPERATE mode is indicated by the illumination of the OPERATE LED.

2.3.4. Test current sources Three Test current Sources are provided within the NMP-1000 for electrometer circuit operability checks.

Two preset current sources are enabled during the CAL HI and CAL LO test modes.

During the CAL HI test mode, the test current is approximately 1.2 milliamp and indicates 2-7 Ell7-l017/Rev. 1

(_'

t

[~

[

[

t t

E G

approximately 120 percent at lo-3 ranga on the POWER meter.

Approximately

+15 volt* i* applied through R6S4 and R655 to provide a current aource to be applied to the electromatar input durinq CAL HI teat moda.

R655 adjust* the current aource to provide the 1.2 mA input to the electrometer and D624 and D625 inhibit leakage current to the electromater range aalection circuit.

During the CAL LO test mode, the teat currant is approximately.2 milliamp* and indicatea approximately 20 percent at Hr' range on the POWRR mater.

provide leakage mode.

mode.

Approximately +15 volta is dropped through R644 and R645 to the non-adjustable.2 mA.

D621, D622, D623 and D646 inhibit current from entering the electromater circuit during the taat An adjuatable current sourca is provided for the CURRENT teat Thi* current aource is adju11table from 10-11 amps to lo-3 amps for testing the AUTO RANGB select function and operability of all measurement ranges.

2.4.

POWBR SUPPLil!:S 2.4.1. High-Voltage Power supply

. The High-Voltage Power Supply (HVPS) is a flyback/ringing aupply which alternately atores energy in a tranaformer core and convart11 the stored energy to a voltage by resonating the inductanca of the tranaformer with its own shunt capacitance.

The resulting waveform is rectified, filtered and fed back to a pulse wave modulator whic~ function* as a ragulation element.

The output voltage is adjustable from )OO to 800 voe with a total power consumption of 2.6 watts.

The output is regulated to

+/-1 VDC with a ma.xi.mum ripple of 1 mV P-P.

Rl09 is u*ed to adjust the output voltage.

2.4.2. Low-Voltage Power supply The **condary of TlOl drops AC power to 18 VCT to power bridge rectifier D101 to D104 which provides +24 V unregulated to tha High-Voltage Power supply and the TRIP indicator LED's.

The output of the bridge rectifier ia applied to filters consisting of ClOl, Cl02, Cl03, Rl02 and Rl03 and regulated by VRlOl to provide regulated +15 VDC.

The aacondary of Tl02 drops AC power to 36VCT which powers rectifier D105 and 2-8 Bl17-1017/Rev. 1

('

p~

t.

[

K

[.

E C

C

[

t D106.

The output of the rectifier i* filtered. by R104, R105, C106 and C107 and raoulatad by VR102 to provide regulated -15V de.

2.4.3. eompe119atinq Power supply Tha aacondary of T103 provide* 200 volt* to bridq* rectifier D801 to D804 which ia filtered and regulated by a ahunt requlatad bias *upply for ume in compeneating ion chamber detectors.

output voltage from Oto -

150 v de i* a.dju*table by a 12-po*ition eelactor switch (S2) for coarse adjustment; R210 ia uaed for fine adjustment.

2.5.

OUTPUTS AND ISOLATION DEVICES 2.5.1. eiatable Trip outputs Tha bistable trips are provided with two eats of normally open and normally closed relay contact*.

Choice of alarm contact atate (open or close on alarm) ia left to tha cuetcxi:.r.

Contact are rated at 0.6 A at 125 V ac ?r 0.6 A at 110 V de.

An optically isolated logic output for external monitoring of trip status with 5000 volt protection ia provided for each bistable trip (U42lb, U421C, and U421D).

2.5.2. Isolated output*

Two isolated power level outputs are provided with optiona to drive remote metera and recorders in a variety of configurations.

outputs corresponding to Oto 1201 full scale ara available am Oto 10 V de and 4 to 20 mA while other output configurations can be optionally in*talled.

The internal loop supply of ARl and AR2 completely isolate tha input loop from the output terminals and provide 1500 V RMS transient protection.

Signal conditioning is accompliahed through a modulator which converts the input voltage to a aquare wave that ia passed through an isolation tranaformer and is demodulated and filtered to provide an output proportional to the input.

2-9 E117-1017/Rev. 1

[

t~

b

[

fd C

C C

c

[

[

[

[

E t!

t

[

3. OPERATION Th* following staps are routinely performed on operational equipment in normal inatallationa:

1.

2.-

3.

4.

s.

6.

7.

Cloae Sl power OB switch.

Graen operata LED on front panel illuminates.

Press Test/Calibrate select (BS) button.

Refer to Section.2 for correct sequence and modes.

Prass RBSET (S6) button.

Verify detectors aignal lead ie connected to Jl (SIGNAL IMPUT) 1 detector HV lead to J2 ( HV OUT)

• Verify output monitor devices are connacted to tha appropriate output port.

Repeat st~s l,.2, and 3 verifying output* on monitoring davices.

Bquipmant is raady to opera.ta.

3-1 Ell7-1017/Rev. 1

C.

f

~

[

[

C e

L

[

G t

[

t

[

r-,

r 4.1.

1.

2.

3.

4.

5.

6.

7.

8.

9.

10.

11.

12.

13.

/

4.

NMP-1000 CALIBRATION/TBST PROCEDURE LOW-VOLTAGE POWER SUPPLY TBST Ramov* all PCB'* fran motherboard *

.snaure that power switch S/Pl is in the off position.

Connect the power cable to a 115 V ac, 60Hz power source.

set the multimeter to read DC volt* and connect the negative lead of the multimeter to a convenient ground on the RMP-1000 motherboard and the poaitive lead to TP9 (+24V).

Apply power to th& NHP-1000 by placing the power switch S/Fl to the ON position.

Verify that the multimeter reads +24 V de(+/- 5 V de) and record on tast reault* data aheet.

• Connect the* poeitive lead of the multimeter to TPlO (+15V) and verify that the multi.mater read& +15 V de(+/- 0.6 v de) and record on test raault* data *h~et.

Connect the positive lead of the multimeteJ;' to TPll (-lSV) and verify that the multimeter read* -15 V de(+/- 0.6 V de) and record on t89t re*ult* data sheet.

Remove power from the NMP-1000 by placing the power switch S/Fl to the Off po*ition.

Replace all of the PCB'e that were removsd in etap 1.

Set the multimeter to read DC volts and connect the negative 1 lead of the multi.mater to a convenient ground on the NMP-1000 motherboard and the positive lead to TP9 (+24V)

Apply power to the NKP-1000 by placing the power switch S/Fl to the ON position.

Verify that the multi.mater reads +24 V de (+/-5 V de) and record on teat raaults data *heat.

Connact the positive lead of the multimeter to TPlO (+15V) and verify that the multimeter read* +15 V de(+/- 0.6 V de) and record on teat results data sheet.

Connect the positive lead of the multimeter to TPll (.;.15V) and verify that the multimeter reads -15 V de(+/- 0.6 V def and record on teat results data shaat.

Remove power from the NMP-1000 by placing the power switch S/Fl to the off poaition.

4-1 Bll7-1017/Rev. 1

(_

C_

[

G e

L l

(

~

[

e.

E F

L r

4.2.

1.

2.

3.

4.

s.

6.

a.

9.

10.

l!'RONT PANEL MBTER ADJUSTMENT Remove the Analog PCB.

set the DMM to read 1000 v de and_connact the positive lead to J2 (HV OUT) canter conductor and the naqativ* lead to the shield of J2.

Apply power to the NMP-1000 by placing the power switch S/Fl to the ON position.

Meaaure and record tha hiqh voltage.

Adjust R469 (HV METER ADJ}, while watching the HV meter, to indicate the value recorded in step 4.

Connect the po*itive lead of the variable power supply to TP404 (I} on the Digital board and the negative lead to TP401 (GND).

Set the variable power *upply at +10 V de and adjuat R471 to indicate full-scale deflection on the POWER meter.

Remove power from tha NHP-1000 by placing the power switch S/Pl to the off position.

Remove power from the variable power supply and disconnect the leads trom the NMP-1000.

Rapl&ce the Ana!og PCB that wa* removed in step 1.

4-2 Ell7-1017/Rev. 1

L t

b

~

§ L:

[

[

[

[

C

[

E f

L 4.3.

1.

2.

3.

4.

s.

6.

7.

a.

BLECTROMETBR CALIBRA'l'ION Connect the current source to the SIGNAL INPUT jack Jl on the rear control panel of the NMP-1000.

Sat the currant *ource to provide an output of 12 pA to thQ SIGNAL INPUT of the IIMP-1000.

Connact tha multimeter positive lead to TP602 (0-lOV and the negative lead to TP601 (GllD) on the Analog board.

Sat the multi.mater to read DC volts.

Apply power to the NMP-1000 by placing the power ewitch S/Pl to the ON position.

Set or verify the following initial conditions on the front control panel on tha NMP-1000:

RANGE MANUAL CONTROL COMPUTER CONTROL TEST/CALIBRATE CURRENT ADJUST

.tmll 10*11 LOCAL OPP (LED not illuminated)

OPERATR FULL COONTER-cLOCKWISB The TRIPS LED's may or may not be illuminated and will not affect the ele-ctrometar calibration section of this procQdure.

When adjusting tha gain and offeet of the loweat rangea in the following steps, it may be necQeaary to wait several minutea for the elactrometar circuits to respond and stabilize.

Adjullt R604 (10"11 ) to indicatQ -10 +/-0.01 V de on the multimeter.

Set the current aource for O currant out and adjust R612 (OPPSET) to indicate 0.00 +/-0.10 V de on the multi.mater.

Rtlpeat atepa 6 and 7 until no further adjustments are neceaaary.

4-3 B117-1017/Rev. 1

[

[

C

[_

[

[

[

[

t

[

9.

10.

11.

12.

Use tha following table to set the input current to the NMP-1000 while aalacting the appropriate range and adjusting the gain for that range.

In~t Range Gain Pot.

Oute!t TP602 120 pA l<r'° R614 (-10)

-10 V de +/- 0.01 1.2 nA lo-'

R618 (-9)

-10 V de +/- 0.01 12 nA 10-R622 (-8)

-10 V de +/- 0.01 120 nA 10"'

R626 (-7)

-10 V de +/- 0.01 1.2 uA 104 R630 (-6)

-10 V de +/- 0.01 12 uA 10-5 R634 (-5)

-10 V de +/- 0.01 120 uA 10-4 R637 (-4)

-10 V de +/- 0.01 1.2 mA lo-3 R640 (-3)

-10 V de +/- 0.01 With tha current input aet to 1 mA and tha Range selected at lo-3, connect the pomitive lead to TP402 (0-lOV) and the negative lead to TP401 (GND).

Verify that the multimeter indicatas -10 +/-0.01 V de.

Connect the positive lead of the multimeter to TP403 (GAIN) and adjuat R436 for 10 +/- 0.01 V de.

Remove power from the NMP-1000 by placing the power switch S/Fl to th* off position.

4-4 Bll7-1017/Rev. 1

l*

r=

~

E

§ L:

[

C e

[

[

E t

[

!~-

t

[~

t C

/

/

4.4.

AUTORANGE SWITCH POINTS

1.

Turn R424 (UP LBVEL) fully c1ockwiee and R416 (DOWN LEVEL) fully counter-clockwiae.

2.

Select lo-4 range on the NMP-1000 front control panel.

3.

Set the current sOW!'ce to 108.0 uA. -

4.

Connect the positive lead o:f the multimeter to TP404 (I TRST).

5.

Apply power to tha RMP-1000 by placing tha power switch S/Fl to the ON position.

6.

Adjuat the currant source up or down as necessary until the multimeter indicates 9.00 ~ de.

7.

Select AUTO RANGE on the NMP-1000 front control panel.

B.

Slowly adju*t R424 (UP LRVRL) counter-clockwise until the NMP-1000 automatically switches to the next higher range (lo-').

9

• Set the current source to BO. O uA.

10.

Adjust the currant source up or down as necessary until the multimeter indicate*.667 V de.

11.

Slowly adjust R416 (DOWN LEVEL) clockwise until the NMP-1000 automatically awitches to the next lower range (10~).

12.

Remove power from the NMP-1000 by placinq the power switch S/Fl to the off position.

4-5 Ell7-1017/Rev. 1

[.

[

~

[

L C

E

(:

E

[

C 4.5.

1.

2.

3.

4.

s.

6.

• 7.

a.

9.

10.

11.

12.

TRl:P SET POINTS Turn R442 (TRIP 1) and R452 (TRIP 2) fully clockwise.

Sat currant aource to 1.10 mA.

select AUTO RANGB on the NMP-1000 front control panel.

App]..y power to the NMP.,.1000 by placing th& power switeh S/Pl to the OH poaition.

Before continuing to the next step, observe that the NMP-1000 will auto range up to the 10~ range and the POWER meter will settle at approximately 1101.

If either TRIP LBD ia illuminated, praa*

RESET and ensure that both TRIP 1 and TRIP 2 LED'a go Off.

Set the multimeter to meaaure resistance and check the statue of the trip relay contacts as follows:

J4-24 to J4 open J4-21 to J4 open J4-18 to J4 open J4-15 to J4 open J4-24 to J4 closed J4-21 to J4 closed J4-18 to J4 closed J4-15 to J4 closed Slowly turn R442 (TRIP 1) counter-clockwiae until th~ TRIP 1 LED on the NHP-1000 front control panel illuminates.

set th* current aource to 1.20 mA.

Slowly turn R452 (TRIP 2) countar-clockwiae until the TRIP 2 LED on the NMP-1000 front control panel illuminates.

Set the multimeter to measure resistance and check the atatus of the trip relay contacts as follows:

J4-24 to J4 closed J4-24 to J4 Optln J4-21 to J4 closed J4-21 to J4 open J4-18 to J4-16 -"cloaed J4-18 to J4 open J4-15 to J4 closed J4-15 to J4 open Presa the RESKT pushbutton on the NHP-1000 front control panel and ob*~* that both TRIP 1 and TRIP 2 LED's remain illuminated.

Set the current source to 900 uA Press the RESET puahbutton on the NHP-1000 front control panel and observe that both TRIP I and TRIP 2 LED'a go off.

4-6 E117-1017/Rev. 1

l.

[

~

t 8

t

~

b f

[

b.

E E

[

~

E L

[

[

13.

14.

set the multimeter to maasura reaiatance and check the status of the trip ralay contacts aa followa1 J4-24 to J4 open J4-21 to J4 open

.J4~18 to J4-.1.6 - open J4-1S to J4 open J4-24 to J4 cloaad J4-21 to J4 closed J4-1S to J4 closed J4-15 to J4 cloeed Remove power fran the HMP-1000 by placing the power switch S/Fl to the oft poaition.

4-7 Ell7-1017/Rev. 1

l

[

~

t g;

[

[

G f

L L

E

[

L B

E L

l.

C 4.6

1.

2.

3.

4.

s.

6.

7.

a.

9.

10.

11.

12.

13.

14.

ISOLATION AMPLIFIBR PCB ALIQNMKNT Sat current *ource to 120 uA.

Select lo-4 range on the RMP-1000 front control panel.

Set the multi.mater to read DC volts and connect the positive lead of the multimeter to JS-24 and tha negative lead tc, JS-25.

Apply power to tha DMP-1000 by placing the power switch S/Fl to the ON poaition.

Adjust R912 (GAIN 2) on the I*olation Amplifier PCB for an indication of 10 +/-0.10 V de on the multimeter.

Set the current source to standby ( 0 current out)

• Obaerve an indication of o.o +/-0.10 v de on the multimeter.

Set the multi.mater to read DC mA and connect the positive lead of tha multimeter to JS-22 and the negative lead to JS-23.

Set the current source to 120 uA.

Adjust R902 (GAIN 2) on the I*olation Amplifier PCB for an indication of 20.0 +/-0.10 mA on the multimeter.

Set the current aourc* to standby (0 currant out).

Observe an indication of 4.0 +/-0.10 mA on the multimeter.

Remove power from the NMP-1000 by placing the power switch S/Pl to the off position.

Diaconnact th* current 80Urce and tba multimeter from*the NMP-1000.

4-8 Bll7-1017/Rav. 1

l

[

t t

~

[

[

t r

• [

C E-E E-

~

t

[*.:

[

[

4.7.

COMPENSATION PCB

1.

Sat the multimeter to measure DC volts and connect the positiva lead to the center pin of J3 on the HMP-1000 rear control panel.

Connect the nagative lead to the shield of J3.

WARNING High voltage exists within tha compensation circuit. care should be taken to avoid electrical shock.

2.

Turn R110 (COMP ADJ) fully counter-clockwise.

3.

sat S2 (on the NMP-1000 rear control panel) to poaition 1.

4.

Apply power to the NMP-1000 by placing the power switch 8/Fl to the ON position.

5.

Observe an indication of 5.0 +/-0.10 V de on tha multimeter.

6.

Set 82 to position 10.

7.

Adjust R110 (COMP ADJ) to indicate 150 +/-1.0 V de on the multimeter.

8.

Remove power from the NMP-1000 by placing the power switch s/Fl to the otf position.

9.

Disconnect and remove tha multimeter from J3.

4-9 Ell7-1017/Rev. 1

[:

C

~

t t

e E

b r:

[

C E

E

[

~

E

[:

[

[

4.8.

1.

2.

3.

4.

s.

6.

7.

a.

9.

10.

11.

HIGH-VOLTAGE POWER SUPPLY TUrn R462 (HV TRIP SBT) fully counter-clockwise.

Apply power to the HMP-1000 by placing tha power awitch S/Pl to the ON po*ition.

If the HV trip Lim ia illuminated when the NMP-1000 is powered up, presa the RESET pushbutton to reset tha HV trip LBD to off.

Set the multimeter to measure resi*tance and check the atatus of the trip relay contacts as follows:

J4-9 to J4-ll - open J4-12 to J4 open J4-9 to J4 closed J4-12 to J4 closed Whila observing the HV meter on the NMP-1000 front control panel, adjuat R109 (HV ADJ) for an indication of.7 (700 V).

Slowly adju*t R462 (HV TRIP SKT) clockwise until tha HV trip LED

'illuminates.

Set the multimeter to meaaure resistance and check the atatus of the trip relay contact* as follows:

J4-9 to J4 closed J4-12 to J4 closed J4-9 to J4 open J4-12 to J4 open Presa tha RESET pushbutton on the NMP-1000 front control panel and observe that the av trip LBD remain* illuminated.

While observing the HV meter on the NHP-1000 front control panel, adjuat Rl09 (HV ADJ) for an indication of.a (800 V).

Pre*s the RESET pushbutton on the NMP-1000 front control panel and observe that tha HV trip LED resets to off.

Set the multiJr\\Qtar to maasura resi111tance and check the atatus of the trip relay contacts aa follows:

J4-9 to J4-ll - open J4-12 to J4 open J4-9 to J4 closed J4-12 to J4 cloaad Remove power from the,NMP-1000 by placing the power switch S/Fl to the off position.

4-10 Ell7-1017/Rav. 1

~

l=-~'.

t C

[

[

[

E E

f

~

E 4.9.

1.

2.

3.

4.

s.

6.

7.

TEST/CALIBRATE !'UNCTIONS The TEST/CALIBRATE function of the NHP-1000 baa a f~ature which autattati~~lly re11at11 tha device*back to the OPBRATB condition after approximately 60 to 90 *aconda.

If the test ia interrupted by tha automatic reset, reselaot tha tast mode and continue from tha laat completed step.

Apply power to the NMP-1000 by placing the power switch S/Pl to tha OR poaition.

Select 10~ on the NMP-1000 front control panel.

Set R201 (TEST CURRENT ADJUST) on tha NMP-1000 front control panel fully clockwisa.

Presa the SELECT pushbutton in the TEST/CALIBRATE aaotion of the lfMP-1000 front control panel and observe that the CAL BI LED is illuminated.

Observe the following indications on tha NMP-1000 front control panel:

OPERATB LBD CAL HI LED CAL LO LBD CORRBNT LED HV TEST'LED POWER meter

'fRIP 1 LBD TRIP 2 LED HV TRIP Lll:D AUTO RANGE LED off on off oft off 120% at 10-3 range on on off off Press the SELECT pushbutton and obaarve that the CAL LO LED is illuminated.

Observe the following indications on the NMP-1000 front control panelz OPERA'l'B LED CAL HI I.RD CAL LO LED CURRBNT LED BV TBST Lll:D POWER meter TRIP 1 LED TRIP 2 LED HV TRIP LED AUTO RANGE LED 4-11 off off on off off 201 at lo-3 range on on off on E117-1017/Rev. 1

r.

[

r:

~*

e

~

[

[

~

[

[

[:

f.

a.

9.

10.

11.

12.

Pre*s tha RBSBT pushbutton on the NMP-1000 front control panel and obaerve that both TRIP 1 and TRIP 2 LED'a reset to off.

Prass the SZLBCT pushbutton and observe that the CORRENT LED i11 illuminated.

Observe the following inclicationa on the NMP-1000 front control pana-11 OPBRATK LED CAL HI LED CAL LO LED CURRlmT LED HV TBST LED POWER meter

,~:~~

HV TRIP LED AUTO RANGE LBD off off off on off 501 at 10~ range off off off on Slowly turn R201 (TEST CURRENT ADJUST) counter-clockwise while observing the POWBR mater and the range indicator LED's for the following indicationaz

a.

b.

The POWER meter will go down acale until tha value ia approximately a,, at which point the range will ba automatically switched to the naxt lower range.

The POWER meter will then go up scale to approximately 801.

Continue to turn R201 (TEST CURRENT ADJUST) slowly counter-clockwi*e until the POWER metar hae reached 01 and the RANGE indicator LBD for 10-11 hae illuminated.

c.

The POWER meter and range indicator LED'a will continue to indicate down scale automatic switching until the TEST CURRENT ADJUST control is fully counter-clockwise.

Slowly turn R201 (TEST CURRENT ADJUST) clockwise while observing the POWBR meter and the range indicator LlCD'* for the following indications:

b.

The POWER meter will go up scale until th* value is approximately 1081 at which point the range will be automatically switched to the naxt higher range.

The POWER mater will then go down scale to approximately 11\\

Continue to turn R201 (TEST CURRENT ADJUST) slowly clockwiaa until the POWER metar has reached 120\\ and the RANGE indicator LlID for 10~ has illuminated.

4-12 Bll7-1017/Rev. 1

(

[

C

[

[

E E

[

~

E

[

[

~

13.

14.

15.

16.

17.

18.

19.

c.

The POWER metar and riUlge indicator LED's will continua to indicate up scale automatic switching until the TRST CURRENT ADJUST control ia fully clockwiaa.

Presa the SBLBCT pushbutton and observe that the BV TBST LED is illuminated.

Ol:laerve tha following indicationa of the NMP-1000 front control panel:

OPERATE LED CAL HI LBD CAL LO LBD CURRENT LBD BV TBST LKD PCMRR meter TRIP 1 LED TRIP 2 LED BV TRIP LED AUTO RANGll: Lll:D off off off off on n/a otf off on on Press tha RESXT pushbutton on the NMP-1000 front control panel and observe that the HV TRIP Lll:D remains illuminated.

Presa the SELECT pushbutton and observe that the OPERATE LED is illuminated.

Observe the following indications on the NMP-1000 front control panel:

OPERATE LlID CAL Ill Lll:D CAL LO LED CURRENT LED HV TEST LBD POWBR meter TRIP 1 LJ:D TRIP 2 LED HV TRIP LED AUTO RANGE LED on off off off off n/a off off on off Press the RESET pushbutton on the NMP-1000 front control panel and obaerve that the HV TRIP LED ia reset to off.

Remove power from the NMP-1000 by placing the power switch S/Fl to the off position.

4-13 B117-1017/Rev. 1

5.

MAINTKNANCE AND DRAWINGS BNGINEERING DRAWINGS

1.

Schematic

2.

PCD asaembliea (7)

3.

Module assembly NOTE: Additional pages redacted due to reasons 5.a and 5.b.

5-1 B117-1017/R8v. 1