TE Technology TC-36-25-RS232 - Manual (Page 21)

2.7
ALARM LATCH menu key:
a) ALARM LATCH OFF: controller will automatically reset to a non-alarm state if the alarm condition self-corrects.
If the alarm condition is recurring and the ALARM LATCH OFF is selected, the TE device could be damaged
by thermal fatigue stress imposed by repeated long-term power cycling.
b) ALARM LATCH ON: controller will maintain the alarm condition until it is manually cleared. If an alarm condition
exists, the alarm latch can be reset by clicking the SEND LATCH CLEAR button or by electrically shorting the
Alarm Cancel pin, JP5-5 to the circuit ground pin, JP5-4.
2.8
SENSOR TYPE menu key:
The available options correspond to various temperature-resistance curves for thermistors as shown in
“Temperature-Resistance Curves” in the Appendix. Select the sensor type having the same temperature-resistance
curve as the thermistor you intend to use with the controller:
a) TS-141 5K, control temperature range: -40 °C to +70 °C
b) TS-67, TS132 15K, control temperature range: -20 °C to +100 °C
c) TS-91 10K, control temperature range: -20 °C to +85 °C
d) TS-165 230K, control temperature range: +25 °C to +250 °C
e) TS-104 50K, control temperature range: 0 °C to 150 °C
f) YSI H TP-53, control temperature range: -15 °C to +80 °C
NOTE: Select TS-67, TS132 15K when using the supplied MP-3193 sensor or one of the other sensors listed in
Appendix D “Thermistor Styles for TC-36-25 RS232.” This will provide a control range of -20 °C to +100 °C.
However, remember that depending on the type of cooler you have, the cooler itself might not be suitable for
operation at temperatures greater than 70 °C.
If you have an existing 10 kOhm thermistor, the TS-91 10K or YSI H TP-53 might be equivalent. The TS-91 10K is
equivalent to the 10 kOhm thermistor, curve “B” from YSI Temperature, Inc. The YSI H TP-53 is equivalent to the 10
kOhm thermistor curve “H” from YSI Temperature, Inc.
Contact TE Technology if you need a sensor that uses a temperature scale different from the “TS-67, TS132 15K”,
20 °C to +100 °C range.
If you are using two thermistors with the controller, they must have the same resistance versus
temperature characteristics. Also be sure that you have selected the correct sensor type. Otherwise a
dangerous condition could exist because the actual temperature could be higher or lower than the
temperature being interpreted by the controller.
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