Riken Keiki PT2-178, Operating Manual

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7 Maintenance 7-1. Maintenance intervals and items
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7
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.
7-1. Maintenance intervals and items

Daily maintenance: Perform maintenance before beginning to work.

Monthly maintenance: Perform maintenance on the alarm circuit (alarm test) once a month.

Regular maintenance: Perform maintenance once or more for every six months to maintain the
performance as a safety unit.
Maintenance
item
Maintenance content
Daily
mainte-
nance
Monthly
mainte-
nance
Regular
mainte-
nance
Power Supply
Check Check that the power lamp lights up.
  
Concentration
Display Check Check that the concentration display value is zero. When
the reading is incorrect, perform the zero adjustment after
ensuring that no interference gases exist around it.
  
Flow rate
check Check the flow rate to find abnormalities.
  
Filter check Check the dust filter for dust or clogging.
  
Alarm Test Inspect the alarm circuit by using the alarm test function.
－
 
Span
Adjustment Perform the span adjustment by using the calibration
gas.
－ － 
Gas Alarm
Check Check the gas alarm by using the calibration gas.
－ －

<About Maintenance Services>

We provide services on regular maintenance including span adjustment, other adjustments and
maintenance.
To make the calibration gas, dedicated tools, such as a gas cylinder of the specified concentration
and gas sampling bag must be used.
Our qualified service engineers have expertise and knowledge on the dedicated tools used for
services, along with other products. To maintain the safety operation of the detector, please use our
maintenance service.

The followings are typical maintenance services. For more information, please contact RIKEN
KEIKI.