RKI Instruments GX-3R User Manual

GX-3R Operator’s Manual Appendix B: Gas Select Mode • 107
6 . Use AIR to change the target gas or turn the channel off.
7 . Press and release POWER MODE to save the setting.
8 . The instrument returns to the channel selection screen.
9 . Repeat Step 3 - Step 8 to change the target gas for other channels.
10 . Use AIR to scroll to ESCAPE and press and release POWER MODE.
11 . The instrument returns to the GAS COMB menu item.
12 . See “Exiting Gas Select Mode (START)” on page 111 to enter Measuring Mode.
Saving the Alarm Points (SAVE-AP)
Performing a SAVE-AP operation saves the current alarm setpoints.
Performing a DEF ALMP operation in the ALARM-PT User Mode menu item sets the
instrument’s alarm points to those saved during the SAVE-AP operation (if performed).
Performing a SAVE-AP operation has no effect on an M.DEFAULT in Maintenance Mode.
An M.DEFAULT operation returns all instrument settings to the RKI default regardless of if a
SAVE-AP operation was performed.
Table 14: Target Gas Options for Each Channel
Channel Target Gas Options
Combustible
Gas
• CH4 (methane)
• i-C4H10 (isobutane)
• H2 (hydrogen)
• CH3OH (methanol)
• C2H2 (acetylene)
• C2H4 (ethylene)
• C2H6 (ethane)
• C2H5OH (ethanol)
• C3H6 (propylene)
• C3H6O (acetone)
• C3H8 (propane)
• C4H6 (butyne)
• C5H10 (cyclopentane)
• C6H6 (benzene)
• n-C6H14 (hexane)
• C7H8 (toluene)
• n-C7H16 (heptane)
• C8H10 (xylene)
• n-C9H20 (nonane)
• EtAc (ethyl acetate)
• IPA (isopropyl alcohol)
• MEK (methyl ethyl ketone)
• MMA (methyl methacrylate)
• DME (dimethyl ether)
• MIBK (methyl isobutyl ketone)
• THF (tetrahydrofuran)
• CH4_VOL (methane %volume)*
• ---------- (off)
O2 • O2 (oxygen)
• ---------- (off)
H2S • H2S (hydrogen sulfide for dual CO/H
2
S sensor)
• H2S SING (hydrogen sulfide for single-gas H
2
S sensor)
• H2_CO-H2 (hydrogen compensated CO)
• ----------- (off)
CO • CO (carbon dioxide for dual CO/H
2
S sensor or single-gas CO sensor)
• CO_CO-H2 (hydrogen compensated CO)
• ----------- (off)
* If CH4_VOL is selected, the CHG LEL item in Gas Select Mode has no effect on operation.

RKI Instruments GX-3R Specifications

General

Brand	RKI Instruments
Model	GX-3R
Category	Measuring Instruments
Language	English