5
2-2. Warning cases
2.
WARNING
Sampling point pressure
The purity meter is designed to introduce a gas of 0.1 to 0.7 MPa (gauge pressure) through
GAS IN. Do not introduce a gas that exceeds the range of 0.1 to 0.7 MPa (gauge pressure).
Otherwise, a failure may be caused.
Reference calibration in the atmosphere
When the reference calibration is performed in the atmosphere, check the atmosphere for
freshness before beginning the calibration. If interference gases (gases other than SF6 and air)
exist, the adjustment cannot be performed properly and thus correct measurement of gas
concentration may not be performed.
Use of battery
To operate the purity meter with batteries, be sure to use AA alkaline batteries of the same
type.
Replace all of the three batteries with new ones at one time.
To operate the purity meter with AC adapter, use the dedicated AC adapter (option).
Battery level check
Before use, check that there remains sufficient battery power. When the purity meter is not
used for a long period, the batteries may be exhausted. Never fail to replace them with new
ones before use.
If a battery error occurs, measurement cannot be performed. If an error is displayed during use,
turn off the power and promptly replace the batteries in a safe area.
Others
Do not throw the purity meter into fire.
Do not wash the purity meter in a washing machine or ultrasonic cleaner.
Do not block the buzzer sound opening. No buzzer sound can be heard.
Do not remove the batteries or dedicated AC adapter (option) while the power is on.
