Riken Keiki SD-1DRI, Operating Manual

Page: 33 / 57

7 Maintenance 7-1. Maintenance intervals and items
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7
Maintenance
This is an important instrument for the purpose of safety.
To maintain the performance of the 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
mainten
ance
Monthly
mainten
ance
Regular
mainten
ance
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 other gases
exist around it.
  
Alarm Test Inspect the alarm circuit by using the alarm test
function.

 
Gas Adjustment Perform the sensitivity calibration by using the
calibration gas.
 

Gas Alarm
Check Check the gas alarm by using the calibration gas.
 

Ground wire
check Check the connection of the grounding wire (no
looseness or corrosion) to maintain EMC
performance.
－ －
○
<About Maintenance Services>

We provide services on regular maintenance including span adjustment, adjustment 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 our overseas sales
department or local representative.