Omega Engineering OS137 manual Installation, Electrical Connection

Installation 2

- ** means:

-MA : 4 to 20 mA current output

-V1 : 0 to 5 Vdc output

-V2 : 0 to 10 Vdc output

-K : K type thermocouple output

-MVC : 10 mV/ºC output

-MVF : 10 mV/ºF output

The following table lists the optional accessories:

	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

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.

					OS137
12-24 Vdc		+	WHITE		RED	+	12-24 Vdc
POWER SUPPLY		–	BLACK		BLACK	–	POWER SUPPLY
EARTH			SHIELD		SHIELD		EARTH
GROUND							GROUND
THERMOCOUPLE	+	YELLOW		-OR-	WHITE	+	DIGITAL
							VOLTMETER/
METER/
	–		RED			–	AMMETER/
RECORDER
							RECORDER
			K TYPE		10 mV/Deg
THERMOCOUPLES					0/5 Vdc or 4-20 mA
					or 0/10 Vdc

Figure 2-1. General Wiring Diagram

OS137

GREEN +

MECHANICAL

RELAY

BLACK –

Figure 2-2. Alarm Output Wiring Diagram

2