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


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  • PDR AlidyNE ENGINau,_ COllll'O-ffON REVISIONS DESCRIPTION DATE APPROVED DATE TITLE PT174-l*Q2 PROO TEST

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Thermometer Signal Conditioner C:Gl,:NE::E,:Rl,:NG:__~:;2QM~~:.._.LLttL---I~~!.::...~ NUMBER UAL CONTROL ATP444-l SHEET 1

8626 WILBUR AVENUE

  • NORTHRIDGE. CA 91324 * (213) 886-8488
  • Telex No. 65-1303 VEC 304-11/80 OF 10 REV A

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l AlidyNE ENGINUIIING COllll'OIIA'nON 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 7 0)

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 ATP444-l REV A

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NUMBER REV ATP444-l A

SHEET 3

OF 10

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 TESTER

-_ EXTENDER

,.... PT174-l-Q2

[ 11 CABLE

( D CARD LJ L

I OUTPUT A I 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 ATP444-l REV A

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AlidyNE l!NGIN.. !IIING COIIPOIIAT10N 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.

NUMBER ATP444-l SHEET 5

OF 10 REV A

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 5.4 5.4.1 4.2.

~4.3 Repeat step 5.3.3.

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

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

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

PT174-1 TESTER REDCJ----

!DMM I BLACK o-.----i OUTPUT MCl(TEST)

I OUTPUT A I BLACK RED EXTENDER CARD PT174-1-02 I INPUT FREQUENCY COUNTER fSYNCl LQ!!I..J FUNCTION GENERATOR

[]B]J

@JJ OSCILLOSCOPE NOTE:

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

5.4.4 5.4.5 5.4.6 5.5 5.5.1 5.5.2 5.3 6

5.6.1 5.6.2 5.6.3

  • 5.6.4 5.6.5 5.6.6 5.6.7 Alid)'NE INQINaUUNG COIIPO-TION 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.

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.

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.

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

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

acceptance on test report with checkmark.

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

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

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.

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

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

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

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

NUMBER ATP444 -l REV A

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PT174-l TESTER AlidyNE ENOIN.l!RINO CORPORATION MCl(TEST)

I OUTPUT A BLK RED HI DMM EXTENDER CARD NOTE:

BOXED CALLOUT jxxxj INDICATES PANEL MARKINGS R CAL PT174-1-Q2 Figure 4.

Remote Calibration Circuit Test Setup

+lSV I TEST SWITCH

~----!-~~

-lSV I TEST -

SWITCH TEST

  • OUTPUT A

B

+15

  • MCl TEST

+lSV VOLTAGE TEST JACK

~,sv VOLTAGE TEST JACK

(~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 ATP444-l REV A

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

T OF.

emperature

-300

-250

-200

-150

-100

- so 0

32 so 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 Ohms 23.74

35. 71.

47.46 59.01 70.42

81. 71 92.89 100.00 103.98 114.97 125.87 136.68 147.39 158.02 168.55 179.00

. _189.35 199.61 209.79 219.87 229.87 239.78 249.59 259.32 268.95 278.50 287.95 297.31 NUMBER ATP444 -1 t'UCCT n

nc REV A

AlidyNE ENGIIN.ERINGI CORPORATION APPENDIX A SAMPLE TEST REPORT NUMBER ATP444-l REV A

S/0 W/0 TESTED BY Paragraph/Step 5.2 Output Noise ASSY 5.2.2 DMM Indication 5.2.3 DMM Indication Linearity Table 2 Step Indication 1

2 3

4 DMM DMM DMM DMM 5.3.S Table 2

- 5.4

.4.5

(.4.6 QC Step Indication 1

2 3

4 Filter DMM DMM DMM DMM 3 dB frequency Output at 30Hz TEST REPORT PT174-1-02 Resistance Thermomet"er Signal Conditioner CUSTOMER SERIAL NO.

DATE Accepted NUMBER ATP444-l Specification 10 mV AC max.

10 mV AC max.

-3.000(:t0.015)V O.OOO(:t0.002)V

+5.000(+/-0.012)V

+10.000(:t0.002)V

-3.000(:t0.015)V O.OOO(:t0.002)V

+5.000(:t0.012)V

+10.000(:t0.002)V 10+/-2.SHz 930 +/- 300 mV P-P REV A

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

TESTED BY DATE Paragraph/Step Accepted 5.5 Remote Calibration Circuit 5.5.2 DMM Indication 5.6 Current Consumption 5.6.2 DMM Indication 6.5 DMM Indication

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NUMBER ATP444-l oc Specification

+S. 750 +/-0. 220 V 22 mA max.

22 mA max; REV A

OF 2

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