Riken Keiki TP-70DGII, Operating Manual

Page: 34 / 83

5. How to Operate 5-7. User mode
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<Zero Adjustment "1-1">
This is used to perform the zero adjustment. Before starting the zero adjustment, let the gas detector draw
the zero adjustment gas and wait until the reading is stabilized.
PW AL1 AL2 F LCD
1-1. ZERO
Press SET key.
● ○ ○ ○
1- 1
ZERO
MAINTENANCE
↓ ↓
Current Concentration Value
Display
Press the SET key to perform
the zero adjustment.
● ○ ○ ○ 1.1 ppm
ZERO SET
MAINTENANCE
↓ ↓
Zero Adjustment Completed
The menu returns to 1-1.
ZERO automatically.
● ○ ○ ○ 0.0 ppm
ZERO OK
MAINTENANCE
↓
Return to 1-1. ZERO
* When the zero adjustment
fails
● ○ ○ ○
0.0 ppm
ZERO NG
MAINTENANCE
↓
Return to 1-1. ZERO