6 Maintenance
6-1. Maintenance intervals and items
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GP-1000
6
Maintenance
The gas detector is an important instrument for the purpose of safety.
To maintain the performance of the gas detector and improve the reliability of safety, perform a regular
maintenance.
6-1. Maintenance intervals and items
Daily maintenance: Perform maintenance before beginning to work.
Regular maintenance: Perform maintenance once or more every six months to maintain the
performance as a safety unit.
Maintenance
item
Maintenance content
Daily
maintenance
Regular
maintenance
Battery level
Check that the battery level is sufficient.
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Tube
Check for cracks and holes.
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Filter
Check that the filter is not contaminated.
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Operation of
main unit
Check the LCD display for a fault indication.
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Concentration
display
Make the gas detector draw in fresh air and check
that the concentration display value is zero. When the
value is other than zero, perform zero calibration after
ensuring that no other gases exist around the gas
detector.
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Span adjustment
Perform the span adjustment by using the calibration
gas.
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Gas alarm check Check the gas alarm by using the calibration gas.
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NOTE
Perform span adjustment using a calibration gas at least once every six months.
The span adjustment requires dedicated equipment and creation of calibration gas. Therefore, request
RIKEN KEIKI for span adjustment.
The built-in sensor of the gas detector has a validity period and must be replaced regularly.
The sensor life has expired if, for example, the sensors cannot be calibrated in span adjustment, the
readings do not come back after fresh air adjustment, or the readings fluctuate. Request RIKEN KEIKI
for repair. Note that the warranty period is one year.
