Service documentation series KB/KBF
BB / JTU 25.06.2000
After an adjustment, the following chart gives you the tolerance permitted on one control-
measurement over the complete operating range.
Type of chamber type of controller range tolerances over the
compl. operating range
KB, KBW RD2 0°C up to 99,9°C +/-3K
The deviation over the complete operating range should be written down on a chart and fixed to the
chamber for reference.
Adjustment over the complete range of temperature on a controller allowing
two-points adjustment.
Adjustment over the complete range of temperature on two working points. EX: A KBF chamber on
20% and 80% r.H.
A two points adjustment will be carried out when the customer uses the complete temperature range
and the controller allows a two points adjustment.
The following chart shows you the optimal values for a two points adjustment according to the
correspondent controller.
Type of chamber Type of controller 2 points
adjustment
Work settings
KBF, KBWF D2, PD2 20 und 80°C
20 und 80% r.H.
37°C
20 und 80% r.H.
After an adjustment, the following chart gives you the tolerance permitted on one control-
measurement over the complete operating range.
Type of chamber Type of controller 2 points adjustment Tolerances over the
compl. operating
range.
KBF, KBWF D2, PD2 Bis 100°C
bis 90% r.H.
+/-2K
+/-4% r.H.
The deviation over the complete operating range should be written down on a chart and fixed to the
chamber for reference.
Example: KBF adjustment by 20°C and 80°C .
Nominal-/actual-value
appliance
Measuring instrument Deviation
10°C 8°C -2K
20°C 20°C 0K
50°C 51°C +1K
70°C 71°C +1K
80°C 80°C 0K