Physitemp Instruments TS4 - Manual (Page 6)

3.0 OPERATING INSTRUCTIONS
3.1 Check that SENSOR INPUT is switched to B. The digital display will show the temperature
of the stage.
Depress the RUN/SET switch to SET position and hold down while adjusting the SET TEMPERA-
TURE knob. With this 10-turn potentiometer, adjustment may be made to any temperature in the
listed temperature range of the stage (See Section 1.2)
Release the RUN/SET switch and allow the stage to stabilize at set temperature. This should take
1-2 minutes.
If further slight adjustments are needed, use the same procedure.
The controller will now maintain the stage at the set temperature.
3.2 MEASURING TEMPERATURE WITH THE EXTERNAL SENSOR
The digital display of the controller may be use as a readout for the needle microprobe supplied
with TS-4 (or any other type T thermocouple sensor). Range of the thermometer circuitry is -100
o
to +200
o
C.
Connect the probe to socket marked SENSOR A - EXTERNAL.
Switch SENSOR INPUT to A.
Read temperature on the digital display.
When external sensor is being used, no power is supplied to the stage. After switching SENSOR
INPUT back to B, allow stage temperature to stabilize again.
3.6 WARNING LIGHT
Since the thermocouple modules can be damaged if allowed to overheat, audible and visible warn-
ings of operating failure are provided on the controller.
Fault conditions such as broken thermocouple sensors, lack of cooling water or electronics failure
will trigger safety shutdown and lamp illumination.
6
SWITCH OFF IMMEDIATELY IF WARNING LIGHT COMES ON
OR IF BUZZER ALARM IS HEARD