Emerson 755A 22

Instruction Manual

245364-V May 2002

Model 755A

b.Recorder Connections

NOTE

Route recorder cable through a separate conduit, not with power cable or alarm output cable.

If a recorder, controller, or other output device is used, connector it to the analyzer via a 24-22 AWG two-conductor shielded cable.

Route the cable through conduit to the analyzer and into the case through the appropriate opening shown in Installation Drawing 642349. Connect the shield only at the recorder or computer, if used.

Cable connections and output selection for potentiometric and current actuated devices are explained in below.

Optional Alarm Kit

c.Potentiometric Output

Insert Recorder Output Selection Jumper, Figure 2-2 (page 2-3), in position appropriate to the desired output; 10 mV, 100 mV, 1V or 5V.

On TB2, Figure 2-1 (page 2-2), connect leads of shielded recorder cable to "MV+" AND "COM" terminals.

Connect free end of output cable to appropriate terminals of recorder or other potentiometric device.

For device with a span of 0 to 10mV, 0 to 100mV, 0 to 1V, or 0 to 5V, connect cable directly to input terminals of the device, making sure polarity is correct.

For device with intermediate span, i.e., between the specified values, connect cable to device via a suitable external voltage divider, as shown in Figure 2-3 (page 2-3).

NO. 1
	NO
	COM		HOT
	NC		HOT
	NC
RESET
NO. 2	NO	MA	MV
	NO	+ - + COM
COM		TB2
COM
	NC			+
				+	mV Recorder
RESET				-	mV Recorder
				+ mA Recorder
				-
		TB1
	N	H
	GND E	O
	U	T
	T
Power Connections
(see below)
Jumpers			Jumper
		TB1		TB1
	N	H	N	H
GND E		O	GND E	O
	U	T	U	T
	T		T
120 VAC CONFIGURATION			240 VAC CONFIGURATION

Figure 2-1. Electrical Connections

2-2 Installation

Rosemount Analytical Inc. A Division of Emerson Process Management