Cole Parmer 05012-20, Инструкция по установке и эксплуатации

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10/ bad connections or faulty solid state relay Ð check
connectors for mechanical soundness and look for
corrosion around terminals or signs of arcing or other
visible deterioration
Temp-
7 Will not maintain set
point
1/ ASSURE THAT SET POINT IS AT LEAST 5
DEGREES OVER AMBIENT ROOM TEMPERATURE
2/ see if ambient is fluctuating
Temp-
8 Display and actual
reference thermometer
donÕt match
1/ calibration error Ð see Watlow users manual
2/ temperature sensor failure Ð call Customer Service
3/ controller failure Ð call Customer Service
4/ allow at least two hours to stabilize
5/ verify that reference thermometer is certified
Temp-
9 Can't adjust set points
or calibration
1/ turn entire unit off and on to reset
2/ if repeatedly happens, call Customer Service
Temp-
10 Calibrated at one
temperature, but not at
another
This can be a normal condition when operating
temperature varies widely. For maximum accuracy,
calibration should be done at or as close to the set
point temperature.