Fisher 244EH, 244ER manual Installation Procedures, Transmitter

INSTALLATION

PROCEDURES

Transmitter	Refer to the appropriate procedure and the accompanying illustrations
	when installing the transmitter.
	Head Mount Transmitter with DIN Plate Style Sensor
	The least complicated assembly uses:
	• an integral mount sensor with flying leads
	• an integral DIN style connection head
	•	a standard extension
	•	a threaded thermowell
	Refer to Volume 2 of the Rosemount Sensors Product Data Sheet
	(document number 00813-0101-2654) for complete sensor and
	mounting accessory information.
	To complete the assembly, follow the steps described below.
	1.	Attach the thermowell to the pipe or process container wall. Install
		and tighten the thermowell before applying pressure.
	2.	Set the transmitter failure mode switch
		(see Figure 2-13 on page 2-16).
	3.	Assemble the transmitter to the sensor. Push the transmitter
		mounting screws through the sensor mounting plate and insert the
		snap rings (optional, part number 00644-4432-0001) into the
		groove of each transmitter mounting screw.
	4.	Insert the transmitter-sensor assembly into the connection head.
		Thread the transmitter mounting screw into the connection head
		mounting holes.
	5.	Assemble the extension to the connection head. Insert the
		assembly into the thermowell.
	6.	Attach a cable gland into the shielded cable.
	7.	Insert the shielded cable leads into the connection head through
		the cable entry. Connect and tighten the cable gland.
	8.	Connect the shielded cable leads to the transmitter power
		terminals. Avoid contact with leads and terminals.
	9.	Install and tighten the connection head cover. Enclosure covers
		must be fully engaged to meet explosion-proof requirements.

Figure 2-5. Typical Model 244EH

Mounting Configuration Using Integral

Mount Sensor and Assembly

Model 244EH	Connection
		Head	Threaded
Transmitter
			Thermowell

Integral Mount Sensor	Threaded Extension
with Flying Leads

644-0000B04A

2-5