Riken Keiki TP-70DGII, Руководство по эксплуатации

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6. Operations and Functions 6-4. Other functions
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<Calibration History/Alarm Trend History/Event History Functions>
The gas detector and the sensor unit have their own history functions. To use these functions, please
contact RIKEN KEIKI.
<Sensor Unit Automatic Recognition Function>
The gas detector has the function to automatically recognize the sensor unit when the sensor unit is
replaced or the specification is changed. When a sensor unit with a different serial number or with a different
principle or specification is attached, one of the following messages is displayed for helping the correct
installation.
C-01
CHG UNIT
MAINTENANCE
Unit Replacement
Displayed when a unit with the same specification
(principle, type, and so on) is attached (e.g. in a
regular replacement).
Press the MODE key to recognize the new sensor unit
and start the gas detector.
The following is displayed alternately if the unit that
you installed has the same or earlier date of
manufacture than the one that has been replaced.
"CHG UNIT" <=> "USED SEN"
Check for correct installation if this message is
displayed because an old sensor might have been
installed by mistake.
C-02
CHG SPEC
MAINTENANCE
Specification Change
Displayed when a unit with a different specification
(principle, type, and so on) from the previous one is
attached.
Press the MODE key to recognize the unit with the
new specification and start the gas detector.
If you do not intend the specification change, this
message might mean the installation error. Check the
correct installation.
CAUTION
If you confirm the specification change (principle, sensor type, detected gases, detectable range, and
so on) of the sensor unit for "C-02", the specification of the gas detector head is changed. Note that it
resets the alarm setpoint (ALM P) as well as the following parameters to the standard setting values.
If you want to use nonstandard setting values, set them in the maintenance mode.

Alarm delay time setting (ALM DLY)

Suppression value (SUPPRESS)
Please note that the data for the sensor unit with a different specification is already output to the
digital data before the specification change is confirmed.