ML18142A108

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Rev a to Acceptance Test Procedure ATP444-1, PT174-1-Q2 Thermometer Signal Conditioner.
ML18142A108
Person / Time
Site: Surry, 05000000
Issue date: 04/14/1981
From: Kamerman L
VALIDYNE ENGINEERING SALES CORP.
To:
Shared Package
ML18130A405 List:
References
ATP444-1, NUDOCS 8411200431
Download: ML18142A108 (12)
v • d • e


Text

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AlidyNE ENGINau,_ COllll'O-ffON REVISIONS LTR ECO DESCRIPTION DATE APPROVED f841ps41120()431--*a4Tio5

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. *PDR DATE TITLE

.*// i PT174-l*Q2 PROO TEST 1/

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,... Thermometer Signal Conditioner C:Gl,:NE::E,:Rl,:NG:__~:;2QM~~:.._.LLttL---I~~!.::...~ NUMBER REV

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UAL CONTROL ATP444-l A SHEET 1 OF 10 8626 WILBUR AVENUE

  • NORTHRIDGE. CA 91324 * (213) 886-8488
  • Telex No. 65-1303 VEC 304-11/80

AlidyNE ENGINUIIING COllll'OIIA'nON

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1.0 SCOPE This document defines the Acceptance Test Procedure (ATP) for the PT174-1-Q2 Resistance Thermometer Signal Conditioner. The ATP performs functional tests of operating characteristics. A sample of the Test Report to be used with this ATP is contained in Appendix A.

2.0 EQUIPMENT REQUIRED Table 1 lists the test equipment required to perform the ATP.

Table 1. Equipment Required for ATP Part No.

Description Manufacturer or Model Alternate MCl (Test) Validyne None Extender Card (MCl-MCl 70) Validyne None PTl 74-1 Tester Validyne TllOO None Digital Multimeter (DMM) Data Precision 245 Commercial

  • Equivalent Oscilloscope B &K 1470 Commercial Equivalent Function Generator Interstate . F47 Commercial Equivalent Frequency Counter Hewlett Packard 5314A Commercial Equivalent 3.0 PRELIMINARY PROCEDURE 3.1 Plug extender card into front panel connector on MCl.

3.2 Refer to figure 1 and set 3W/4W switch SlA/SlB to 4W; ensure resistors R1 and R7 are the correct value for the customer specified probe

.(nickel or platinum).

3.3 Plug Pt174-l-Q2 into extender card cable connecto~.

3.4 Using tester cable, connect PT174-1 tester to input connector on rear of MCl; set the 3W/4W switch on PT174-1 tester to 4W.

3.5 If necessary, connect MCl to 115 Vac and press MCl power switch; observe that power-on indicator lights *

  • 6 Set PT174-l tester FUNCTION switch to LINEARITY.

NUMBER REV ATP444-l A l

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@ ~@ :O ~, NUMBER ATP444-l SHEET 3 OF 10 REV A

Alid)'NE ENGINa... lNG CORPORATION 4.0 INITIAL TEST SETUP 4.1 Connect DM}1 to MCl as shown in figure 2; set.DMM to read DC voltage.

MCl (TEST)

PT174-l TESTER

[ 11LJ TESTER CABLE (

D

-_ EXTENDER CARD

,. ... PT174-l-Q2 L ..... ... ...

I OUTPUT AI BLACK  :>  :> RED

.

!COM! HI DMM NOTE: BOXED CALLOUT jxxxl INDICATES PANEL MARKINGS Figure 2. Initial Test Setup NOTE: Unless otherwise indicated, controls referred to in the ATP procedures that follow are located on the PT174-l-Q2; see figure 1 for locations.

NUMBER REV ATP444-l A

AlidyNE l!NGIN . .!IIING COIIPOIIAT10N

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5.0 FUNCTIONAL TESTS The nominal resistance and type of probe (nickel or platinum to be used with each PT174-l-Q2 is specified by the customer. Perform all tests and in order given. See Table 3 for the resistance versus temperature for platinum probe used in standard PT174-l-Q2.

5.1 4-Wire/3-Wire Zero Setting 5.1.1 Set PT174-l tester °F switch to O (-17.8°C); adjust ZERO control Rl4 for 0.000 (+/-0.002)V DC on DMM.

5.1.2 Set PT174-1 tester °F switch to 1000 (538°C); adjust SPAN control R25 for

+10.000 (+/-0.002) V DC on DMM.

5. 1. 3 Repeat steps 5. 1. 1 and 5. 1. 2 as necessary to obtain. _desired readings.

5 .1. 4 Set PTl 74-1 tester Op switch to O, and 3W/4W switch to* 3W.

5.1.5 On PT174-1 set 3W/4W switch SlA/SlB to 3W.

5.1.6 Adjust potentiometer R33 for 0.000 (+/-0.002) V DC on DMM.

5.1.7 On PT174-1 set 3W/4W switch SlA/SlB to 4W; on PT174-1 tester, set the 3W/4W switch to 4W .

. 1.8 Adjust ZERO control R14 for 0.000 (+/-0.002) V DC on DMM.

Repeat steps 5.1.4 thru -5.1.8 as necessary to obtain desired readings.

5.2 Output Noise 5.2.1 Set DMM to read AC millivolts.

5.2.2 Set PT174-1 tester Op switch to 1000; the output indication on the DMM should be 10 mV AC maximum. Indicate acceptance on test report with checkmark.

5.2.3 On PT174-l-Q2, set 3W/4W switch SlA/SlB to 3W; set PT174-l tester 3W/4W switch to 3W. The output.indication on the DMM should be 10 mV/ AC maxi-mum. Indicate acceptance on test report with checkmark.

5.3 Linearity 5.3.1 On PT174-1-Q2, set 3W/4W switch SlA/SlB to 4W; set PT174-l tester 3W/4W switch to 4W.

5.3.2 Set DMM to read DC volts.

5.3.3 Perform the steps in Table 2 to check the linearity of the PT174-1-Q2; for each step set the PT174-1 tester op switch as indicated, and indicate acceptance on test report with checkmark.

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NUMBER REV ATP444-l A SHEET 5 OF 10

AlidyNE ENOINEl!IUNG CDIIPOIIATION Table 2. Linearity Check PT174-I-02 Tester .Output Specification Step ~F Switch on DMM (VDC) 1 -300 (-184°C) -3.000+/-0.015 2 0 (-17.8°C) 0.000+/-0.002 3 500 (260° C) +5.000+/-0.012 4 1000 (538° C) +10.000+/-0.002 5.3.4 On PT174-1-Q2, set 3W/4W switch SlA/SlB to 3W: set PT174-l tester 3W/4W switch to 3W. AdJust, if necessary, the SPAN potentiometer for 10.000+/-

0.002 Vdc on DMM.

5.3.5 Repeat step 5.3.3.

5.4 Filter 5.4.1 Connect function generator, frequency counter, and oscilloscope as shown in figure 3 *

  • 4.2. Set PT174-1 tester FUNCTION switch to FILTER CHECK.

~4.3 Set function generator output to 1.0 Hz, as indicated on the frequency counter; set oscilloscope for DC coupling *.

PT174-1 MCl(TEST)

TESTER EXTENDER PT174-1-02 CARD REDCJ---- I OUTPUT AI

!DMM I BLACK RED BLACK o-.----i OUTPUT

[]B]J I INPUT fSYNCl LQ!!I..J @JJ FREQUENCY FUNCTION COUNTER GENERATOR OSCILLOSCOPE

  • NOTE: BOXED CALLOUT lxxxj INDICATES PANEL MARKINGS Figure 3. Filter Test Setup NUMBER REV ATP444-l A

Alid)'NE INQINaUUNG COIIPO-TION 5.4.4 Adjust the amplitude of the function generator output for a 16V peak-to-peak display on CH 1 9f oscilloscope; note amplitude of display on CH 2 of oscilloscope.

5.4.5 Raise the frequency of the function generator until! the display is 11.3V peak-to-peak on CH 1 of oscilloscope. (Make sure amplitude on CH 2 is the same as in step 5.4.4) this should occur at 10+/-2.5Hz. Indicate acceptance on test report with checkmark.

  • 5.4.6 Set function generator output to 30 Hz., as indicated on the frequency counter; adjust the amplitude of the function generator output until the CH 2 display on oscilloscope is the same as noted in 5.4.4., and observe that the display on CH 1 of oscilioscope is 930 +/- 300 mV peak-to-peak . .,.

Indicate acceptance on test report with checkmark.

5.5 Remote Calibration Circuit 5.5.1 Connect DMM to MC! OUTPUT A and set DMM to read DC volts.

5.5.2 On PT174-1-Q2, connect pin 28 of connector (Figure 1) to signal ground (Pin 24); the output indication on DMM should be 5.750+/-0.220V. Indicate acceptance on test report with checkmark.

5.3 Remove Ground from pin 28 of PT174-l-Q2 connector.

6 Current Consumption 5.6.1 Connect the DMM leads"to the MCI *+15V current and voltage test jacks (Figure 5); set DMM to read DC mA.

5.6.2 Set the MC! +15V I TEST switch (Figure 5) to +15; the DMM indication should not exceed 22 mA. Indicate acceptance with checkmark on test report.

  • 5.6.3
  • Set the MC! +15V I TEST switch to the unmarked position; disconnect the DMM leads from the MC!.

5.6.4 Connect the DMM leads to the MC! -15V current and voltage test jacks (Figure 5).

5.6.5 Set the MC! -15V I TEST switch (Figure 5) to -15; the DMM indication should not exceed 22 mA. Indicate acceptance with checkmark on test report.

5.6.6 Set the MC! -15V I TEST switch to the unmarked position; disconnect the DMM leads from the MC!.

5.6.7 Unplug PT174-l-Q2 from extender card cable connector.

NUMBER REV ATP444 -l A

AlidyNE ENOIN.l!RINO CORPORATION

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MCl(TEST)

EXTENDER CARD PT174-l R CAL TESTER I OUTPUT A PT174-1-Q2 BLK RED HI DMM

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NOTE: BOXED CALLOUT jxxxj INDICATES PANEL MARKINGS Figure 4. Remote Calibration Circuit Test Setup

-

+lSV I TEST SWITCH ~----!-~~

OUTPUT *

-lSV I TEST SWITCH -

..... TEST A B

  • @@

+lSV VOLTAGE

  • @ TEST JACK

~,sv VOLTAGE TEST JACK

  • +15

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  • MCl TEST

(~EC~NNECT DMM COM LEAD TO CURRENT TEST JACK AND HI LEAD TO VOLTAGE TEST JACK Figure 5. MCl (Test) ~lSV Current Test Switch and Jack Locations NUMBER REV ATP444-l A

AlidyNE l!NGl-alll- COIIPOIIAT10N TABLE 3 Platinum Resistance Versus Temperature in °F International Practical Temnerature. Scale of 1968 (IPTS-68)

T emperature OF . Ohms

-300 23.74

-250 35. 71.

-200 47.46

-150 59.01

-100 70.42

- so 81. 71 0 92.89 32 100.00 so 103.98 100 114.97 150 125.87 200 136.68 250 147.39 300 158.02 350 168.55 400 179.00 450 . _189.35 500 199.61 550 209.79 600 219.87 650 229.87 700 239.78 750 249.59 800 259.32 850 268.95 900 278.50 950 287.95 1000 297.31

    • NUMBER REV ATP444 -1 A t'UCCT n nc , ,...

AlidyNE ENGIIN.ERINGI CORPORATION APPENDIX A

. SAMPLE TEST REPORT

  • NUMBER REV ATP444-l A

TEST REPORT PT174-1-02 Resistance ASSY Thermomet"er Signal Conditioner S/0 CUSTOMER W/0 SERIAL NO.

TESTED BY DATE Paragraph/Step Accepted Specification 5.2 Output Noise 5.2.2 DMM Indication 10 mV AC max.

5.2.3 DMM Indication 10 mV AC max.

Linearity Table 2 Step Indication 1 DMM -3.000(:t0.015)V 2 DMM O.OOO(:t0.002)V 3 DMM +5.000(+/-0.012)V 4 DMM +10.000(:t0.002)V 5.3.S Table 2 Step Indication 1 DMM -3.000(:t0.015)V 2 DMM O.OOO(:t0.002)V 3 DMM +5.000(:t0.012)V 4 DMM +10.000(:t0.002)V

- 5 .4 Filter

.4.5 3 dB frequency 10+/-2.SHz

(.4.6 Output at 30Hz 930 +/- 300 mV P-P NUMBER REV ATP444-l A QC

v~!.~.~J~~ . TEST REPORT PT174-l-Q2 Resistance ASSY Thermometer Signal Conditioner S/0 CUSTOMER W/0 SERIAL NO.

TESTED BY DATE Paragraph/Step Accepted Specification 5.5 Remote Calibration Circuit 5.5.2 DMM Indication +S. 750 +/-0. 220 V 5.6 Current Consumption 5.6.2 DMM Indication 22 mA max.

6.5 DMM Indication 22 mA max;

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NUMBER REV ATP444-l A oc OF 2 .....~~

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