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With Knob 1 at SET, adjust
CURRENT ADJUST knob until
the meter reads 120.0 ± 0.1
With gas flowing, turn Knob 1
to TEST. The meter
will indicate the percent
concentration of hydrogen.
Change battery when unable
to obtain 120.0 ± 0.1. Open
this panel to reach battery.
IMPORTANT
Discharge waste gas in safe
area
Turn Knob 1 to OFF when not
in use
0.36
Figure 1-1.
Dimensions 120HD
Portable Analyzer.
Inspect Shipping Contents
1-2 | Model 120HD Hydrogen Analyzer
CURRENT ADJUST
SPAN ADJUST
(FOR CALIBRATION ONLY)
6.12
7.09
9.21 MAX
The Model 120HD is inspected both mechanically and electronically
before shipment. Unpack all items from the shipping container and check
for obvious damage that may have occurred. Report any damage to the
shipper. Keep the original packaging materials for use in reshipping the
unit should it be necessary.
Model 120HD Hydrogen Analyzer Parts
The following parts are shipped with the Model 120HD analyzer:
(1) 120HD Analyzer *
(1) Battery Harness **
*
Battery (Energizer 521) not included with analyzer.
** Spare harness provided to facilitate battery replacement.
3.152
5.31
6.37
7.55
00135086
9.00
0.60
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