TB 9-4920-469-24
(7) Turn TI PWR switch to OFF and disconnect equipment set-up.
(8) Short TI J1 pins 3 and 4.
(9) Short TI IN to AGND on TI A/D circuit board.
(10)Connect TI leads to multimeter observing polarity.
(11)Turn TI PWR switch to ON.
(12)Set TI FUNCTION switch to IND TEST.
(13)Set TI RANGE switch to 200Ω.
(14)Rotate TI TEMP ADJ fully CW.
(15)Rotate TI TEMP ADJ to achieve multimeter reading of 1.203 mV dc.
(16)Adjust TI P1 (located on LIN PCB) to obtain TI display of 30.0 C.
(17)Repeat steps (14) and (15) above for remaining indications in table 5.
Table 5. Temperature Accuracy Adjustments (Model TT1200).
TI TEMP ADJ
Multimeter
setting
indications
Adjustment
C
mV dc
125.0
5.124
P2
254.0
10.315
P3
350.0
14.292
P4
414.0
16.987
P5
646.0
26.853
P6
734.0
30.549
P7
814.0
33.850
P8
910.0
37.724
P9
1000.0
41.269
P10
1070.0
43.968
P11
1134.0
46.388
P12
1182.0
48.169
P13
1200.0
48.828
P14
(18)Disconnect TI from multimeter.
(19)With TI display set to 1000.0C, set TI 1C/.1C switch to 1C.
(20)Adjust TI P13 to achieve display of 1000 C
(21)Set TI MV/C switch to MV.
(22)Adjust TI P6 to achieve display of 41.27 mV.
(23)Set TI MV/C switch to C and RANGE switch to 20K-0Ω SYS RES.
(24)Connect TI leads to 50 Ω load. TI display will not change more than 0.1 C.
(25)Disconnect 50 Ω load.
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