7102 Micro-Bath User’s Guide
Power
12
Turn on the power to the calibrator by toggling the switch on the power entry module.
The fan should begin blowing air through the instrument and the con troller display
should illuminate after 3 seconds. After a brief self test the con troller should begin
normal operation. If the unit fails to operate please check the power connection.
The display shows the well temperature and the well TEDs start operating to bring
the temperature of the well to the set-point temperature. Insure that the fluid is being
stirred.
Power
4.3
Plug the Micro-Bath power cord into a mains outlet of the proper voltage, fre quency,
and current capability. Refer to Section 3.1, Specifications, for power details. Turn the
bath on using the rear panel “POWER” switch. The Micro-Bath will turn on and begin
to heat to the previously programmed temperature set-point. The front panel LED
display will indicate the actual bath temperature.
Setting the Temperature
4.4
Section 9.2 explains in detail how to set the temperature set-point on the cali brator
using the front panel keys. The procedure is summarized here.
Press “SET” twice to access the set-point value.
1.
Press “UP” or “DOWN” to change the set-point value.
2.
Press “SET” to store the new set-point.
3.
Press “EXIT” to return to the temperature display.
4.
When the set-point temperature is changed the controller switches the heater on or off
to raise or lower the temperature. The displayed well tempera ture gradually changes
until it reaches the set-point temperature. The well may require 25 minutes to reach
the set-point depending on the span. Another 10 to 15 minutes is required to stabilize
within ±0.03°C of the set-point. Ultimate sta bility may take 20 to 30 minutes more of
stabilization time.
