D e t e c t i o n
AirWatch MK 1.2
User Manual
18
9.3 USER MAINTENANCE
The maintenance that can be carried out by the user is as follows:
•
Bump test
•
For more details on this, see chapter 7, Operation.
•
Check the filter regularly, and replace it if dirty.
•
The filter keeps out sand, dust, fluids and other contamination that may affect the accuracy of the measurements or
irreparably damage the pump, electronics and sensors.
•
While replacing the filter, turn off the AirWatch to prevent sand, fluids, dust etc. from getting into the pump and
stopping the device from functioning.
•
You must replace the filter in a clean environment with clean hands. The filter should always be stored clean, dry and
dust-free in the packaging intended for that purpose.
•
Turn the filter counter-clockwise to disconnect it from the hose.
•
Take a clean filter from the plastic bag and turn it clockwise to attach it to the hose.
•
After replacing the AirWatch you must carry out a fresh-air calibration if enviroment allows you to.
•
Clean the unit with a damp cloth, and never use solvents or abrasive cleaning agents.
Maintenance by trained personnel:
Trained personnel may carry out the following activities. Everything has been described under ‘User maintenance’.
•
Conducting a span calibration.
•
For more details on this, see chapter 7, Operation.
•
Internal filter replacement. See page 12.
•
Unscrew the front cover of the AirWatch using a Phillips screwdriver.
•
Detach the hoses from the filter and install a new clean filter.
•
Reattach the front cover.
•
Turn the AirWatch on and carry out a fresh air calibration.
•
After the AirWatch has been started, carry out a pump test.Contact your supplier or WatchGas to obtain bump test
equipment, flow regulators, bump gas cylinders and hoses. Also see chapter 6, Various Parts
Highlighted for more
information.
10. Turning The Device Off, Repairs And Disposal
10.1 TURNING THE AIRWATCH OFF
The AirWatch may only be turned off when no concentrations of explosive or
toxic substances are present.
1. Activate on/off for approximately two seconds and enter code 4321.
2. Activate on/off to increase the number.
3. Use the alarm/reset button to move on to the next number.
4. Then select > and select the alarm/reset confirmation button.
In order to maintain measurement accuracy and start up the device quickly, we recommend that you keep it connected to
the 12V DC adapter when it is not being used for an extended period of time. The optional backup battery will keep a current
running through the sensors when it is turned off. If necessary, store it in the case or packaging provided
.
10.2 REPAIRS
The external filter(s) may be replaced by the user. The internal filter may be replaced only by trained personnel. See also page
15. For safety and warranty reasons, all other maintenance, such as sensors, pumps and electronic components, must be
carried out by WatchGas.
Internal and external modifications to the device can be dangerous, and are prohibited. Should a defect occur, you can
contact our service department.
The AirWatch should only be used for the intended purpose.
10.3 AIRWATCH DISPOSAL
Dispose of materials in accordance with the relevant legal requirements. You may return the unit to us for safe dismantling
and disposal.
