located in close proximity to the heater. Observe the maximum temperature rat-
ing of the probe and be careful it is not exceeded.
Set the high limit (HL) less than or equal to the probe maximum temperature.
4.4
Power
CAUTION:
Do not plug the instrument into 230V if the indicator window
of the power entry module reads 115V. This action will cause the fuses to
blow and may damage the instrument.
Plug the controller power cord into a mains outlet of the proper voltage, fre-
quency, and current capability (see Section 2.1, Specifications on page 9). In-
sure that the indicator window of the power entry module matches the voltage
of the mains supply.
Turn the controller on using the rear panel "POWER" switch. The controller
will turn on and begin to heat or cool the system to reach the previously pro-
grammed temperature set-point. The front panel LED display will indicate the
actual process temperature. See Section 4.5, Fuses for information on selecting
the correct fuse for the application.
When powered on the control panel display will briefly show a four digit num-
ber. This number indicates the number of times power has been applied to the
unit. Also briefly displayed is data which indicates the controller hardware con-
figuration. This data is used in some circumstances for diagnostic purposes.
2200 Temperature Controller
User’s Guide
14
1
2
3
4
RTD Sensor
Rear Panel
Probe Connector
Figure 2
RTD Probe Wiring
