Adjusting Turning Transmitter - Johnson Controls SABROE Unisab III Control Engineering Manual

Calibration
Besides, Unisab III automatically changes to automatic Vi control after the compressor has
been stopped.

7.5.6 Adjusting turning transmitter

SAB 110-128-163 and SAB 202 (capacity and Vi)
The turning transmitter has two ways of adjustment. The cover must be removed before ad-
justment. Fig. 30 illustrates the zero and span adjusting screws of the position transmitter.
Slide position
4.5 4.
Volume ratio
SPAN + ZERO
0%
Fig. 30: Zero and span adjusting screws of position transmitter
With the capacity or Vi slide in minimum position, adjust zero until the display shows 0%.
With the capacity or Vi slide in maximum position, adjust span until the display shows 100%.
Engineering manual - Unisab III 1.10
001930 en 2014.09
3.5
3.
100%
2.5
No. 3
2.
243/319
1 = 4-20 mA
2
2= +24 VDC
3 3 = GND
1