K-Patents PR-21-S - Manual (Page 47)

5 Startup and use 41
Both sensor head temperature and DTR temperature are monitored by the built-
in diagnostics program, see Sections 8.1.8, “Message
HIGH SENSOR TEMP ”, and 8.1.9,
“Message HIGH TRANSMITTER TEMP ”.
5.4.4 Sensor head humidity
The Sensor processor card contains also a humidity sensor. The value HD HUM is the
relative humidity inside the Sensor. It is monitored by the diagnostics program, see
Section 8.1.7, “Message
HIGH SENSOR HUMIDITY ”.
5.5 Sensor verification
A company maintaining quality system according to ISO 9000 quality standards
must have defined procedures for controlling and calibrating its measuring equip-
ment. Such procedures are needed to demonstrate the conformance of the final
product to specified requirements. For the recommended verification procedure,
please see Chapter 12.