Comark N9005 - Manual (Page 11)

10
10. BEFORE USING YOUR THERMOMETER
Before using the thermometer make sure you have the right
probe for the job. There are specific probes for measuring
product, air, ‘between pack’, surface and deep fat temperatures.
For permanent installation there is also a choice of ‘damped’
sensors and food simulants.
The N9094 is compatible with thermistor and type T and K
thermocouple sensors to give ultimate system accuracy and
fastest speed of response. It is compatible with all existing
N9091/N9092 probes and thermistor test caps. It self configures
to the particular sensor type. All you have to do is choose the
right probe for the job.
The N9005 is compatible with all industry standard type T and
type K probes with sub-miniature connectors.
Both the N9005 and the N9094 can be tested using a C9040
thermocouple simulator. (C9040K type K sub-miniature,
C9040TM type T sub-miniature and C9040TL type T Lumberg).
Before measuring product temperatures make sure that the
probe is adequately cleaned. Use bactericidal wipes (PW175T
- Tub of 175 probe wipes or PW70T - tub of 70 probe wipes) or
immerse the shaft in a suitable food quality sterilising solution.
Remember to read the instructions carefully and allow the
specified time.
Thermometers need to be checked at regular intervals
to confirm that their accuracy is within specification. It is
recommended that thermometers are regularly checked (every
three months). The N9094 can be checked by comparing the
measured reading with a certified test cap.
Comark test caps allow you to check N9094 instrument
accuracy at specific points to improve your confidence in
the measurement. These can be used on a frequent basis if
required.
N9005 and N9094 thermometers and their probes can also be
regularly checked using melting ice. Simply use a beaker full
of ice cubes, add cold water and stir for a few minutes. Insert
the penetration probe and stir it for a further two minutes. The
thermometer should then read between –0.5°C and +0.5°C.
The accuracy can be checked against a reference thermometer
such as the KM20REF. Make sure you use sufficient ice cubes
and stir long enough for the water to cool down properly.