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CAUTION
Be sure to perform regular maintenance.
The product must be maintained regularly to ensure safety. Continuing to use the product without
maintaining it will result in sensor sensitivity variations, preventing accurate gas detection.
Miscellaneous
‧ Pressing buttons unnecessarily may change the settings, preventing alarms from activating
correctly. Avoid performing any operations not described in this operating manual.
‧ Do not drop the product or subject it to impact. Doing so may degrade explosion-proof,
waterproof, dustproof, and gas detection performance.
‧ Do not use the product while charging it.
Do not poke the buzzer sound opening or sensor openings with sharp-pointed items. Doing so
may result in ingress of water or foreign matter, resulting in malfunctions or damage to the product.
Do not block the buzzer sound opening with tape or other objects. This will prevent adjustment of
the internal pressure of the product, which may result in malfunctions.
Do not remove the panel sheet on the LCD display. Doing so will impair waterproof and dustproof
performance.
Do not cover the infrared port with labels or other objects. This will prevent infrared
communication.
Usage
‧ The operating time will be reduced due to battery performance in cold environments.
‧ The response of the LCD display may slow at low temperatures.
‧ Always perform air calibration under conditions of pressure, temperature, and humidity similar to
those in the operating environment and in fresh air.
‧ Wait for the readout to stabilize before performing air calibration.
‧ If there is a temperature difference of 15 °C or more between the storage and usage locations,
turn on the power and allow the product to stand and acclimatize for about 10 minutes in an
environment similar to the usage location before performing air calibration in fresh air.
‧ When wiping the product clean, do not splash water on it or use organic solvents like alcohol and
benzine. Doing so may discolor or damage the surfaces of the product.
‧ After a period of extended storage, be sure to perform calibration before resuming use. For
information on readjustment including calibration, please contact Riken Keiki.
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