Operating The Thermometer - Omega OS550A User Manual

OUTPUT
CABLE
SENSOR HEAD
SENSOR CABLE
5 CONDUCTOR SHIELDED CABLE

3.3 Operating The Thermometer

1. fter installing the thermometer (see section 2.1) and connection for
sensor cable and power/output (see section 3.2), your unit is ready
for use.
2. The optical field of view of the thermometers sensor head should fall
within the area of the target being measured. See Figure 3-2. Figures 3-
3 through 3-8 show the fields of view vs. distance for the various
thermometers.
3. The target temperature and emissivity are displayed on the LCD.
Determine the emissivity of the target (refer to ppendix B).
Press the
Press the
Using the Infrared Thermometer/Transmitter
YELLOW WIRE
BLACK OR GREEN WIRE
BLUE WIRE
Figure 3-3. External Relay Wiring Diagram
OS550A
OS550AM
Figure 3-4. Typical Transmitter Installation
(ACCEPTABLE)
Figure 3-5. Field of View Positions
key to increment the target emissivity.
key to decrement the target emissivity
+
–
+
–
FIELD REPLACEABLE FUSE
POWER/OUTPUT
CABLE
8 CONDUCTOR SHIELDED CABLE
Field of View
Target
(UNACCEPTABLE)
HIGH ALARM
MECHANICAL
RELAY
8-24 VDC
LOW ALARM
MECHANICAL
RELAY
8-24 VDC
(+ PWR) RED
+
SHIELD
(– PWR) BLACK
–
(+ OUTPUT) WHITE
+
(– OUTPUT) GREEN
–
3
8-24 VDC
(EARTH GND)
POWER
SUPPLY
DIGITAL
VOLTMETER,
AMMETER,
RECORDER
3-3