RKI Instruments GD-70D Series User Manual

- 91 - GD-70D
Accessing Maintenance Mode
From Detection Mode, press and hold the MODE key for three seconds.
0.0ppm
SIH4
↓
↓
1-8.M MODE
Press the ▲ key until the Maintenance Mode screen displays. (For GD-
70D-EA units, the Maintenance Mode screen is item 1-9.)
1- 8
M MODE
MAINTENANCE
↓
↓
User Mode
In "1-8.M MODE", press the SET key.
1- 8
M MODE
MAINTENANCE
↓
↓
Then press and hold the SET key again for three seconds.
- - - -
M MODE
MAINTENANCE
↓
↓
2-0.GAS TEST
The first item in Maintenance Mode will display.
2- 0
GAS TEST
MAINTENANCE
Performing a Zero Adjustment
2-1. ZERO
Press the ▲ key until the ZERO screen
displays.
Press the SET key.
2- 1
ZERO
MAINTENANCE
↓
Current Concentration Value Display
Press the SET key to perform the zero
adjustment.
1.1ppm
ZERO SET
MAINTENANCE
↓
Zero Adjustment Completed
The instrument will indicate whether the zero
adjustment passed (OK) or failed (NG) and
will return to 2-1.ZERO automatically.
0.0ppm
ZERO OK
MAINTENANCE
OR
0.0ppm
ZERO NG
MAINTENANCE
↓
↓
Return to 2-1.ZERO
Return to 2-1.ZERO

RKI Instruments GD-70D Series Specifications

General

Brand	RKI Instruments
Model	GD-70D Series
Category	Gas Detectors
Language	English