RKI Instruments GX-3R Pro - Turning Zero Suppression On;Off (ZERO SUPPRESS); Turning Zero Follower On;Off (ZERO FOLLOWER); User Mode Zero Suppression (DISP ZERO SUP)

GX-3R Pro Operator’s Manual Appendix B: Maintenance Mode • 180
5. See “Exiting Maintenance Mode (START MEASURE)” on page 189 to return to Measuring
Mode.
Turning Zero Suppression On/Off (ZERO SUPPRESS)
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)
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.
User Mode Zero Suppression (DISP ZERO SUP)
ON (factory setting): Zero suppression menu item appears in User Mode.
OFF: Zero suppression menu item does not appear in User Mode. Zero suppression menu item is
always available in Maintenance Mode.
Sensor
Zero
Suppression
Value
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