8.2.1 Limitation of the max. or min. possible temperature set points in two separate input windows
The operating temperature of Water Baths models H 4 to H 41 is between approx. 5 K
above ambient, from models H 8 A and H 16 A approx. 10 K above ambient, to 100 °C
(boiling point). Both minimum and maximum temperature set points can be limited in two
input windows.
The maximum set point can be defined between 10.9 °C and 100 °C, the minimum set
point between 10.0 °C and 99.1 °C. The values of both functions are interlocked. The
maximum limitation of the set temperature cannot be set lower than the minimum limi-
tation and vice versa. Therefore, the temperature can be set and limited between 10 °C
and 100 °C.
Use keys ① and ② to set the required temperatures, confirm with key ③ and return to the display of menu basic settings.
Key
Key
Key
Factory setting maximum possible temperature set point 100 °C
Factory setting minimum possible temperature set point 10.0 °C
8.2.2 Setting the trigger points for over- and under-temperature alarms in two separate input windows
After the set temperature of a current process has been reached for the first time, the
alarm functions for over- and under-temperature are activated. If the actual temperature
then exceeds or falls below the temperatures determined in the input windows, the current
process is interrupted, and an acoustic and visual alarm is triggered.
The switch-on point for the over-temperature alarm can be set between 0.0 K and +10
K above the set point temperature. The switch-on point for the under-temperature
alarm can be set between 0.0 K and -10 K below the set point temperature. Only if
process-related and absolutely unavoidable, should the value for the under-temperature
alarm be set lower than -4.0 K and the over-temperature alarm to values lower than
+2.0 K.
Use keys ① and ② to set the trigger points of the alarm functions, confirm with key ③ and return to the display of the
menu basic settings.
Key
Key
Key
Factory setting over-temperature alarm +4.0 K
Factory setting under-temperature alarm -9.0 K
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