22
Operation
3-3-5. Zero adjustment (zeroing)
During normal operation, press and hold the
◀
button for four seconds to start zero
adjustment.
--> “ZERO ADJUST” will be displayed. A countdown will begin with “3,” “2,” and “1”
being displayed in sequence along with a beep for each. When the zero
adjustment is complete, there will be a long beep with “ZERO ADJUST
COMPLETED” being displayed, and then “0.0%LEL” or “0ppm” for combustible
gas and “20.9vol%” for oxygen will be displayed.
3-3-6. Display device information
During normal operation, press the
◀
button to display the device information.
--> Pressing the ▼ button cycles through the below information.
Pressing the
🔺
button does the same in the
reverse direction.
1. Model, serial number, and battery type
2. Target gases
3. Full scale values
4. Alarm set values
5. Previous calibration date
6. Log memory usage, number of logs, and
logging time left
7. Bluetooth not available
To return to the HOME screen, press the
▶
button.
Gas2 and its information are not displayed for 1-gas models.
The previous calibration date screen is skipped when shipped,
because there is no record.
The log memory usage screen is skipped for the unit with no
Bluetooth function installed.
The Bluetooth not available screen is skipped for the unit with
Bluetooth function installed.
Perform zero adjustment in clean air. Inaccurate gas
concentrations will be indicated if zero adjustment is done in a
gas atmosphere.
WARNING
NOTE
