Azbil Corporation
Model
KFPA
,
KFTA
- Field Mount type Pressure Indicating Controllers
31
(4) Recheck the zero and the span in the method mentioned above.
5-5-2: Temperature element
The calibrating and adjusting procedure for the temperature are the same as for the
pressure element. Use accurate calibrating devices.
(a) Check accuracy of the constant temperature bath to ensure that it indicates
accurately 0, 50, and 100% F.S. of the temperature range.
(b) An accuracy of + 1% F.S. or better is required for the constant temperature bath as
calibrated with a standard thermometer.
(c) Before starting calibration, completely immerse heat sensing section of the
element and wait until the pointer is stabilized. Note that a longer time will be
required for an element with protecting tube or a high-temperature element (400
°
C
or 500
°
C type with sealed gas).
Figure 27 SP setting knob
90
90
Zero adjusting screw
(H)
Hole for adjusting pin
SP index adjusting screw
SP index
PV pointer
Span adjusting screw
(G)
Adjusting knob
(F)
SP base
