Physitemp Instruments NTE2A Thermal Sensitivity Tester - Manual (Page 6)

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Connect AC line cord from the controller to an AC outlet and turn ON.
A buzzing noise from water pump indicates that pump is running. Remove tank cap and
check that water is flowing.
The power indicator light on the controller and tank unit will light. IF EITHER LAMP
FAILS TO LIGHT, SWITCH OFF and check fuses.
3.0 OPERATING
INSTRUCTIONS
3.1
ADJUSTMENT OF BASE TEMPERATURE OF CONTROLLER
All parts of the system must be connected and turned on.
Set all switches under SET DIFFERENTIAL TEMPERATURE to center '0' position.
Depress RUN/SET switch to SET position and hold down while adjusting SET BASE
TEMP with screwdriver. Adjustment may be made to any base temperature between 20
 and
30
 Centigrade to within 0.1 C.
Release the RUN/SET switch and allow the stage to stabilize at the base set temperature.
This should take one to two minutes. Further slight adjustments to temperature may be made
to provide exact setting.
All further temperature settings can be made using the digital control settings (switches on
the front panel). These settings allow the temperature of the stage to be incremented or
decremented in 5
, 1 degree or 1/10 steps from the base temperature.
3.2
MEASURING ABSOLUTE TEMPERATURE
The digital display of the controller may be used as a readout for an external sensor (Type T,
copper-constantan thermocouple with miniature t/c plug.)
Connect a thermocouple sensor into socket marked SENSOR A - EXTERNAL.
Switch SENSOR INPUT to A. Read absolute temperature on controller display.
During measurement with external sensor, all power to the Thermal Probe is disconnected.
Switch SENSOR INPUT back to B and allow the stage temperature to stabilize again.
3.3 WARNING
LIGHT
As a protective feature, both audible and visual warnings of operating failure are provided.
SWITCH OFF IMMEDIATELY IF WARNING LIGHT COMES ON OR IF BUZZER
ALARM IS HEARD.
In the event of failure, consult manufacturer for further information:
Physitemp Instruments Inc. 973-779-5577 or e-mail [email protected]
4.0 SPECIFICATIONS