Riken Keiki OHC-800, Руководство по эксплуатации

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9 Troubleshooting 9-2. <OUT OF SPECIFICATION>
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Display State explanation Main cause and required action
Optical sensor unit:
Sudden temperature change detected Reconsider the operating
environment.
Optical sensor unit:
Out-of-specification temperature detected Reconsider the operating
environment.
Out-of-specification Opt-Sonic:
Calculation results Calorific value and
density (specific gravity) detected Check that the conditions
specified in the "Measuring gas
specification sheet" are met.
Main controller:
4 - 20 mA signal output failure detected Check that the use method
meets the wire connection
method and load resistance
(300
Ω at the maximum)
conditions.
Main controller:
Out-of-specification power supply detected Check whether the power
supplied to the OHC-800 meets
the required specifications.
Main controller:
Out-of-specification temperature detected Reconsider the operating
environment.