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Installation, Mounting the gd-70d4s-xx, Figure 3: factory wiring – RKI Instruments GD-70D4S-XX User Manual

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Model GD-70D4S-XX Sample Draw Transmitter • 4

Figure 3: Factory Wiring

Installation

This section describes how to install the GD-70D4S-XX at the monitoring site.

Mounting the GD-70D4S-XX

1.

Select a mounting site that is representative of the monitoring environment. Consider
the following when you select the mounting site.

Select a site that is easily accessible for servicing.

Select a site where the GD-70D4S-XX is not likely to be bumped or disturbed.
Make sure there is sufficient room to make wiring and sample line connections at
the bottom of the GD-70D4S-XX. Also make sure there is sufficient room to
perform start-up, maintenance, and calibration procedures.

Select a site near the sampling area. The GD-70D4S-XX is designed to detect a
variety of toxic gases many of which are easily absorbed in sample tubing. Keep
the sample line length to a minimum. Teflon PTFE tubing is recommended.

Use four 1/4” screws through the mounting feet to mount the GD-70D4S-XX to a
vertical surface. See Figure 4 for the mounting dimensions.

BLK

RED

Strobe

BLK

BLK

GRN

N L

(AC)

+V -V

BL

K

WH

T

GR

N

10

8

9

4-20mA

ALM2

FAULT

GD-70D

Backplate

Power Supply

Terminal

AC in Terminal

1

2

3

4

5

6

7

+

+

-

-

ALM1

DC24V