RayTek MI Miniature Infrared Sensor Programming Guide Device Setup, Temperature Calculation

Ambient temperature (example)

Control ambient background temp. compensation

Gain adjustment for the temperature signal Offset adjustment for the temperature signal

Programming Guide

11.4 Device Setup

11.4.1 Temperature Calculation

U=C	unit for the temperature value
E=0.950	Emissivity setting (Caution: according to the settings
	for “ES”, see section 11.4.2 Emissivity Setting and
	Alarm Setpoints on page 70.)
XG=1.000	Setting for transmission

For the calculation of the temperature value, it is possible to set an offset (relative number to be added to the temperature value), and a gain value.

DG=1.0000

DO=0

In case the ambient temperature is not requested by the internal head temperature, you must set the ambient temperature values as follows:

A=250.0

AC=1

11.4.2 Emissivity Setting and Alarm Set points

The device allows three choices for the emissivity setting and two for the alarm output setting.

ES	Selection of the emissivity setting.
ES=1	Emissivity set by a constant number according to the
	„E“ command
ES=E	Emissivity set by a voltage on FTC1 (analog input)
ES=D	Emissivity set by the entries in a table (selected by
	digital inputs FTC1 – FTC 3)
?CE	asks for the emissivity value that is actually used for
	temperature calculation

70 MI