RKI Instruments GX-3R Pro - Page 110

GX-3R Pro Operator’s Manual Chapter 5: User Mode and Calibration • 110
4. Press and release POWER MODE to save the setting and return to User Mode.
5. See “Returning to Measuring Mode (START MEASURE)” on page 117 to return to
Measuring Mode.
Turning Zero Suppression On/Off (ZERO SUPPRESS)
This menu item only appears if DISP ZERO SUP is set to ON in Maintenance Mode.
The ZERO SUPPRESS setting is not intended for field adjustment. The default setting for each
sensor is ON.
Turning Zero Follower On/Off (ZERO FOLLOWER)
This menu item only appears if DISP ZERO FLWR is set to ON in Maintenance Mode.
The ZERO FOLLOWER setting is not intended for field adjustment. The oxygen channel does
not support zero follower functionality. The default setting is ON for all other channels.
Sensor
Zero
Suppression
Val u e
Combustible Gas 2% LEL
O
2
0.5% volume
H
2
S 0.3 ppm
CO 2 ppm
CO
2
0 ppm
HCN 0.5 ppm
NH
3
4 ppm
NO
2
0.30 ppm
PH
3
0.02 ppm
SO
2
0.20 ppm