User Manual

1 • Model GD -70D4H-XX Sampl e Draw Transmitte r
Overview
This supplement describes the differences and additional features of the Model GD-
70D4H -X X compared to the GD-70D. It also descri bes how to install, startup, maintain,
and calibrate the GD-70 D4H-XX. Se e the GD-7 0D Ope rator’s Manual for inform at ion
specific to the GD- 70D.
Specifications
Table 1 lists specifications for the G D- 70D4H -XX.
WARNING: When using the GD-70D4H-XX, you must follow the instructions and
warnings in thi s manual to assure proper and safe operation of the
GD-70D4H-XX and to minimize the risk of personal in ju ry. Be sure to
maintain and periodically calibrate the GD-70D4H-XX as described in this
manual.
Table 1: Specificatio ns
Target Gas & Detector Range Refer to the RKI Instruments Inc. List of Dete ctable Gas se s
Enclosur e Type NEMA 4X
Sampling Method Sample-d raw
Input Power 115/220 VAC
Signal Output 4 to 20 mA
Response Time 90% in 60 second s
Accuracy See GD-70D manual
Flow Rate Approximately 0.5 liters/minute
Recommended Sample Tubing 1/4” O.D. x 1/8” I.D. Teflon PTFE