ML18142A109

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Rev B to Acceptance Test Procedure ATP444-2, PT174-2-Q2 Resistance Thermometer Signal Conditioner
ML18142A109
Person / Time
Site: Surry, 05000000
Issue date: 04/13/1981
From: Kamerman L
VALIDYNE ENGINEERING SALES CORP.
To:
Shared Package
ML18130A405 List:
References
ATP444-2, NUDOCS 8411200433
Download: ML18142A109 (13)
v • d • e


Text

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ACCEPTANCE TEST PllOCEDU!E 444-2 PT174-2-Q2

(~eaistance Thermometer Signal Conditioner)

Controlled Distribution I.on Black Luis Flores Taj IC.itaji Lynda lCamerman 3 841105 941120043 05000200 pDR AD0Cl(

  • pDR.

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REVISIONS LTR ECO DESCRIPTION A

SEE DCN GI NEERING QUAL CONTROL DATE APPROVED 4/13/81 TITLE PT174-2-02 Resistance Thermometer Signal Conditioner NUMBER ATP444-2 SHEET 1

OF REV B

10 8626 WILBUR AVENUE

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

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A(idyNE ENGINEEIIING COllll'OIIATION 1.0 SCOPE This document defines the Acceptance Test Procedure (ATP) for the PT174-2-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 (MC1-MC170)

, Validyne None PT174-2 Tester Validyne Tl096 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 Rl and R7 are the correct value for the customer specified probe (nickel or platinum).

3.3 Plug Ptl74-2-Q2 into extender card cable connector.

3.4 Using tester cable, connect PT174-2 tester to input connector.on rear of MCI; set the 3W/4W.switch on PT174-2 tester to 4W.

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

3~ 6 Set PTl 74-.2 tester FUNCTION switch to LINEARITY.

NUMBER ATP444-2 SH 2

a 10 REV B

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SPAN

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ZERO

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Figure 1. PT174-2-Q2 Parts Locations C

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0 u 2

4 C

C C,

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6 5

8 7

10 9

12 11 14 1 J 16 15 I

I 1a 11 20 19 22 21 I

I 24 23 26 25 28 27 JO 29 Em ffl z Cl i l'I..

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AlidyNE ENGINEERING COllll"OIIATlON 4.0 INITIAL TEST SETUP 4.1 Connect DMM to MCl as shown in figure 2; set DMM to read DC voltage.

PT174-2 MCl (TEST)

TESTER TESTER EXTENDER

,. - PT174-2-Q2

[ r'! CABLE

( D CARD 0

L

-~

I OUTPUT A I BLACK? o RED

!COM! J OHI DMM NOTE:

BOXED CALLOUT 1xxx1 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 PT174-2-Q2; see figure 1 for locations.

NUMBER ATP444 -2 SHEET 4

OF 10 REV B

C 5.0 5.1 5.1.1 5.1.2 5.1.3 5 *. 1.4 5.1.5 5.L6 5.1. 7 5.2.1 5.2.2 5.2.3 5.3 5.3.1 5.3.2 5.3.3 AlidyNE INGINalllll-COIIP'O-TION FUNCTIONAL TESTS The nominal resistance and type of probe (nickel or platinum) to be used with each PT174-2-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 PT174-2-Q2.

4-Wire/3-Wire Zero Setting Set PT174-2 tester °F switch to O (-17.8°C); adjust ZERO control Rl4 for 0.000 (+/-0.002)V DC on DMM.

Set PT174-2 tester °F switch to 1000 (538°C); adjust SPAN control R25 for

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

Repeat steps 5.1.1 and 5.1.2 as necessary to obtain desired_ readings.

Set. PT174-2 tester °F switch to 0, and 3W/4W switch to 3W.

On PT174-2 set 3W/4W switch S1A/S1B to 3W.

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

On PT174-2 set 3W/4W switch SlA/SlB to 4W; on PT174-2 tester, set the 3W/4W switch to 4W.

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.

Output Noise Set DMM to read AC millivolts.*

Set PT174-2 tester °F switch to 1000; the output indication on the DMM should be 10 mV AC maximum.

Indicate acceptance on test report with checkmark.

On PT174-2-Q2, set 3W/4W switch S1A/S1B to 3W; *set PT174-2 tester 3W/4W switch to 3W.

The output indicati_on on the DMM should be 10 mV/ AC maxi-mum.

Indicate acceptance on test report with checkmark.

Linearity On PT174-2-Q2, set 3W/4W switch SlA/SlB to 4W; set PT174-2 tester 3W/4W switch to 4W.

Set DMM to read DC volts.

Perform the steps in Table 2 to check the linearity of the PT174-2-Q2;.

for each step set the PT174-2 tester °F switch as indicated, and indicate acceptance on test report with checkmark.

NUMBER ATP444-2 SHEET 5

OF 10 REV B

(

A(idyNE

!j!NOINEl!IIINO COIIPOIIATION Table 2. Linearity Check PT174-2-02 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 PT174-2-02, set 3W/4W switch S1A/S1B to 3W: set PT174-2 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.

5.4.2 Set PT174-2 tester FUNCTION switch to FILTER CHECK.

5.4.3. Set function generator output to 1. 0 Hz,. as indicated on the frequency counter; set oscilloscope for DC coupling~~

I INPUT FREQUENCY COUNTER PT174-2 TESTER fSIGl Ll!Ll OUTPUT

  • ISYNCI OUT FUNCTION GENERATOR REDu-+----.

!DMM I BLACKn-.-~

MCl(TEST)

BLACK RED

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@JJ

  • OSCILLOSCOPE EXTENDER CARD NOTE:

BOXED CALLOUT jxxxl INDICATES PANEL MARKINGS Figure 3. Filter Test Setup NUMBER ATP444-2 SHEET 6

  • PTl 74-2-02 OF 10 REV B

5.4.4 5.4.5 5.4.6 5.5 5.5.1 5.5.2 5.5.3 5.6 5.6.1 5.6.2 5.6.3 5.6.4 5.6.5 5.6.6 5.6.7 AlidyNE IINGINEEIH-COIIPO-T10N Adjust the amplitude of the function generator output for a 16V peak-to-peak display on CH 1 of 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 checkma.rk.

Set function genera.tor output to 30 Hz, as indicated on the frequency counter; adjust the amplitude of the function genera.tor 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 oscilloscope is 930 +/- 300 mV peak-to-peak.-*

Indicate acceptance on test report with checkma.rk.

Remote Calibration Ci~cuit Connect DMM to MCI OUTPUT A and set DMM to read DC volts.

On PT174-2-Q2, connect pin 28 of connector (Figure 1) to signal ground (Pin 24); the output indication on DMM should be 5.884+/-0.220V.

Indicate acceptance on test report with checkma.rk.

Remove Ground from pin 28 of PT174-2-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 MCI +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 MCl +15V I TEST switch to the unmarked position; disconnect the DMM leads from the MCl.

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

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

Unplug PT174-2-Q2 from extender card cable connector.

NUMBER ATP444-2 SHEET OF 10 REV B

NOTE :

PT174-2 TESTER A(idyNE ENGINEERING COllll'OIIATION MCl(TEST)

I OUTPUT A BL*_K RED HI DMM EXTENDER CARD NOTE:

BOXED CALLOUT lxxxl INDICATES PANEL MARKINGS R CAL PT174-2-02 Figure 4.

Remote Calibration Circuit Test Setup TEST

  • mvAlidyNE OUTPUT A

B

©@

©

+15

  • MCl TEST

+15V VOLTAGE TEST JACK

-15V VOLTAGE TEST jACK.

~

0 CONNECT DMM COM LEAD TO CURRENT TEST JACK AND HI LEAD TO VOLTAGE TEST JACK Figure 5.

MCl (Test) +/-15V Current Test Switch and Jack Locations NUMBER ATP444-2 SHEET 8

OF 10 REV B

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AlidyNE l!NGINaaRING CORll'ORAT10N TABLE 3 Platinum Resistance Versus Temperature in °F International -DIN 43760(0.0038SQ/n/°C)

Temperature °F

-300

-250

-200

-150

-100

- 50 0

32 so 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 oc.,c. \\A/II C::IIIC /'l\\/CF\\IIIC A

~ll""'ICTUC1n.r~ rA,., *.,.,A Ohms 25.21 36.94 48.46 59.79 70.98 82.06 93.03 100.00 103. 90.

114. 68 125.37 135.97 146.48 156.90 167.23 177.47 187.62 197.69 207.66 217.55 227.36 237.07 246.70 256.23 265.68 275.04 284.31 293.49 NUMBER ATP444 -2 SHEET 9

OF 10 REV B

AlidyNE ENOINEEIIINO COlll"OIIAT10N APPENDIX A SAMPLE TEST REPORT NUMBER ATP444-2 SHEET 10 OF 10 REV B

PT174-2-02 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.

5.3 Linearity 5.3.3 Table 2 Step Indication 1

DMM

-3.000(+/-0.0lS)V 2

DMM 0.000(+/-0.002)V 3

DMM

+5.000(+/-0.012)V 4

DMM

+10.000(+/-0.002)V 5.3.5 Table 2 Step Indication 1

DMM

-3.000(+/-0.0lS)V 2

DMM 0.000(+/-0.002)V 3

DMM

+5.000(+/-0.012)V 4

DMM

+10.000(+/-0.002)V 5.4 Filter 5.4.5 3 dB frequency 10+/-2.5Hz 5.4.6 Output at 30Hz 930 +/- 300 mV P-J)

NUMBER REV ATP444-2 B

QC SHEET 1

OF 2

L e

1?1 ?\\ OPS RAAP e

Tela SE 1 ?O?

PT174-2-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.Z DMM Indication

+S.884(+/-0.220)V 5.6 Current Consumption 5.. 6.2 DMM Indication 22 mA max.

  • 5..,6~5
  • DMM Indication 22 mA max.

NUMBER REV ATP444 -2 B

QC SHEET 2

OF 2

8626 WILBUR AVENUE

  • NORTH RIDGE. CA 91324 * (213) 886-8488
  • Telex No. 65-1303
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