- 4 -
Safe Operation
Be sure to observe the following to use the product safely and properly.
DANGER
When the gas alarm is sounded, take all necessary precautions
immediately to avoid explosion.
•
Be sure to turn ON the Multi-gas Detector in normal condition
(clean air). Since the AIR adjustment starts automatically, the
erroneous gas concentration will be displayed in gas atmosphere.
•
This Multi-gas Detector is a safety product. Perform daily check
before use (see “
Daily Check
” on page 33).
•
Do not close the sampling port or exhaust port. The gas cannot be
detected properly.
•
Do not block the buzzer port or the alarm will be hard to hear.
•
Use clean filter elements. If the filter element is dirty or wet, the
gas cannot be detected properly.
•
The sensor unit is guaranteed for two years from the date of
purchase. It is highly recommended to replace a sensor after two
years for proper gas detection.
•
Be sure to use the specified battery. The product will not meet the
intrinsically safe requirements without the specified battery (see
“
Battery Replacement
” on page 28).
WARNING
- 3 -
Intrinsically Safe Requirements (Japan)
Confirm the following Intrinsically Safe Requirements.
Explanation of Symbols
The following symbols are used for safety purposes:
Indicates a hazardous situation that may result in serious injury
or death, if not avoided.
Indicates a potentially hazardous situation that may result in
serious injury or death, if not avoided.
Indicates a potentially hazardous situation that may result in
minor injury or physical damage, if not avoided.
Indicates an operational advice.
WARNING
NOTE
DANGER
WARNING
CAUTION
Intrinsically Safe Structure: Ex ia IICT3X (Japan)
Standard: Recommended Practices for Explosion-Protected Electrical Installations
in General Industries
Part 1: General Requirements, Chapter 6: Intrinsically Safe
Rating: Refer to “
Intrinsically Safe Specification
” on page 38
Ambient temperature: -20 to 50 degrees C
Use conditions:
・
Replace a battery and battery unit in a safe place.
・
For comprehensive measures to prevent accidents due to electrostatic charges,
the user should desirably wear anti-static working clothes and conductive
footwear (antistatic working shoes), and the floor should desirably be a
conductive work floor (leak current: 10M ohm or less).
・
In the measurement of oxygen concentration, make sure to use mix-gas of
oxygen and combustible gas, or vapor and toxic gas only.
・
The Battery Unit to connect with XA-4400II (Certificate No. TC21068) must be
BP-4000IIAL (Battery Unit, Certificate No. TC21069).
・
Use a Panasonic LR03 battery.
