RKI Instruments GD-K71D4X - Manual (Page 6)

3 • Model GD-K71D4X Sample Draw Transmitter
Installation
This section describes how to install the GD-K71D4X at the monitoring site.
Mounting the GD-K71D4X
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-K71D4X 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-K71D4X. Also make sure there is sufficient room to perform
start-up, maintenance, and calibration procedures.
• Select a site near the sampling area. The GD-K71D4X 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-K71D4X to a
vertical surface. See Figure 2 for the mounting dimensions.
Figure 2: Outline & Mounting Dimensions
Connecting Sample Lines to the GD-K71D4X
1. Install a short piece, up to 8” long, of 1/4” O.D. x 1/8” I.D. Teflon PTFE sample tubing
to the inlet fitting.
2. Connect the sample filter to the tube. The sample filter has flexible tube stubs on each
end. Push one end onto the sample tube.
Inlet Fitting
2.51
8.22
Exhaust Fitting
9.88
Ø .34, 4X
11.75
11.23
3/4" Conduit Hub, 2X
7.01
1.43