RKI Instruments GD-70D4H-XX - Manual (Page 5)

Model GD-70D4H-XX Sample Draw Transmitter • 2
Description
This section describes the components of the GD-70D4H-XX. It consists of the enclosure, a
GD-70D and a power supply mounted inside, and a horn/strobe mounted on the top
right side of the enclosure. The “XX” in the part number represents a number that denotes
the target gas and changes depending on the target gas. The “H” denotes that the unit
runs from AC power and that a horn/strobe is installed. For example, the part number for
a detector head for ozone (O
3
) detection is GD-70D4H-O3. Consult RKI Instruments, Inc.
for a complete list of available part numbers.
A hydrophobic sample filter is also provided with the GD-70D4H-XX for installation at
the inlet fitting. The filter has push fittings for 1/4 inch O.D. teflon tubing and can be
connected to the short tubing stub on the GD-70D4H-XX inlet fitting. The filter scrubs
particulates out of the sample stream and keeps water and many other liquids from
entering the GD-70D4H-XX flow system.
Figure 1: Component Location
Exhaust Fitting
Tubing Stub
Inlet Fitting
100-240 VAC
H G N
3/4" Conduit
Hub, 2X
Horn/Strobe
GD-70D Detector
NEMA 4X Enclosure
(Cover not shown)
AC in Terminal
Power Supply