Thermalert GP Series Operator’s Manual 1
1.0 DESCRIPTION
The Thermalert
®
GP Series of instruments consist of components that can be
purchased separately or as a complete infrared temperature measurement
system.
The GP monitor consists of printed circuit boards, A/D converters, micro-
processor, control switches, and power conditioners, all mounted in a 1/8
DIN panel-mount NEMA-12 (IP 54) enclosure. The GP monitor accepts
inputs from any 0-5V and 4-20mA devices, which allows it to be used as a
panel meter for many applications. Other settings allow the GP to act as a
temperature monitor for Raytek fixed infrared sensors (refer to Appendix B)
and for other temperature gathering devices. The GP Monitor also accepts
various types of thermocouple inputs. It provides two setpoint alarm signals
and one of two types of analog output: 4-20 mA output or thermocouple out-
put. (Factory default is 4-20 mA output.)
QUICK REFERENCE CHARTS FOR SETTING UP THE THERMALERT
GP MONITOR FOR USE WITH ANY 0-5 VOLT OR 4-20 mA INPUT OR
THERMOCOUPLE INPUT/OUTPUT, AS WELL AS RAYTEK SENSING
HEADS, ARE IN APPENDIX A.
Figure 1: Thermalert GP Monitor
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