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DPI 740 User Manual
5 Maintenance
5.1 General
User maintenance on this unit is limited to battery
replacement, fault finding and cleaning.
5.2 Fault finding
Displayed error messages
If the pressure sensed by the instrument exceeds 110%
of the full-scale pressure value the display flashes the
message OVERRANGE ERROR. Reduce the applied
pressure until the error message goes out.
If the calibration or set-up of the transducer or the
instrument's operation becomes corrupted the display
shows SYSTEM ERROR. Return the instrument to the
manufacturer or agent for repair.
5.3 Cleaning
Clean the case of the unit with a damp lint-free cloth and mild
detergent. Make sure that there is no debris in the pressure
port.
K0200 Issue No. 1
37
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