Model 422 & Model 422CC Instruction Manual
D01187869
Revision A, December 2015
21
2.
Install the potentiometer mechanism to be calibrated on the holder. Insert
the wedge into the open slot nearest the potentiometer ground spring.
3.
Wind the cord around the potentiometer mechanism frame and over the
pulley. Place the hanger weight hook in the loop on the end of the cord.
4.
Install the alligator clips to the potentiometer mechanism springs matching
the wire colors to the contact pin wire colors.
Figure 5-1 Alligator clips attached to potentiometer mechanism springs
5.
Insert the calibrator plug into the CALIBRATOR socket on the deck of the
instrument.
6.
Within instrument setup, select CALIBRATE - CONSISTENCY.
7.
The weight of the hanger on the string is 50g. This is an equivalent of 9 Bc.
On the touchscreen in the box labeled LOW DATA POINT input 9 on the
touchpad. Select SAVE LOW VALUE. See below screenshot. It may be
necessary to tap the calibrator base to loosen any wound tension on the
spring while in this screen.
