Installation, 2 – electrical connection – Omega OS137 User Manual
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2
2
-K : K type thermocouple output
-MVC : 10 mV/ºC output
-MVF : 10 mV/ºF output
For longer power/output cable, add suffix “xxFT” to the model part number.
The following table lists the optional accessories:
2.2 – Electrical Connection
The shielded cable provides the power and output connections. Fig 2-1 shows
the wiring diagram for different analog outputs. Fig. 2-2 shows alarm output
connections.
Apply DC power after making all the wiring connections
Figure 2-1. General Wiring Diagram
Figure 2-2. Alarm Output Wiring Diagram
Accessories
Model No.
Description
OS137-MB
Mounting Bracket
OS137-WC
Water/Air Cooling Jacket with Built-in Air Purge Collar
OS137-AP
Air Purge Collar
OS137-LS
Laser Sighting
PSR-24S
Regulated 24 VDC (400 mA) Power Supply
CAL-3-IR
NIST Traceable Calibration
Installation
RED
WHITE
12-24 Vdc
POWER SUPPLY
-OR-
10 mV/Deg
0/5 Vdc or 4-20 mA
or 0/10 Vdc
EARTH
GROUND
DIGITAL
VOLTMETER/
AMMETER/
RECORDER
BLACK
SHIELD
+
+
–
–
YELLOW
THERMOCOUPLE
METER/
RECORDER
RED
K TYPE
THERMOCOUPLES
+
–
OS137
WHITE
12-24 Vdc
POWER SUPPLY
EARTH
GROUND
BLACK
SHIELD
+
–
NOTE:
OS137
+
–
MECHANICAL
RELAY
BLACK
GREEN