Checkline DTMX User Manual

Page 8

8.20 Field Calibration Adjustment

The Field Calibration Adjustment permits
the end user to "shift" the calibration curve
to provide better accuracy when the factory
standard calibration is not suitable. Each
step on the Field Calibration Adjustment
will increase (clockwise) or decrease
(counterclockwise) the displayed value
by 1.5%.

Increase:

[7 steps] x [1 .5% per step] = +10.5%

Decrease:

[7 steps] x [1.5% per step] = –10.5%

If a Field Adjustment Calibration is not adequate, the accuracy of the DTMX
can be increased further by ordering a Special Calibration using a calibration
sample supplied by the user. Refer to Special Calibration, Section 8.30.

8.30 Special Calibration

If the standard Factory Calibration and the Field Calibration Adjustment does
not provide the desired accuracy, a Special Calibration can be ordered. Up to
two Special Calibrations can be provided (SP1 and SP2). A l0' sample of the
process material(s) must be provided for calibration purposes.

8.31 To Set DTMX For Special Calibration #1 (SP1)

1. Set Material Rigidity Selector to "TEX"

2. Set Field Calibration Adjustment to "SP"

8.32 To Set DTMX For Special Calibration #2 (SP2)

1. Set Material Rigidity Selector to "WIRE"

2. Set Field Calibration Adjustment to "SP"

Decrease
1.5%
per step

Increase
1.5%
per step

Factory Calibration

Special Calibration

5.00 SETUP

5.10 Installing/Replacing Batteries

1. Using a slotted screwdriver or coin,

loosen the battery cover screw located
at the end of the unit by turning the
screw counterclockwise.

2. Insert four (4) AA, 1.5 Volt Alkaline

batteries into the battery sleeve.
Insert them in the direction indicated
on the top of the sleeve. Use of NiCad
rechargeable batteries is not
recommended.

3. Replace battery cover by first inserting

the tab of the cover into the slot of the
housing and pressing the cover into
place. Tighten the screw by turning it
clockwise.

NOTE: If battery cover will not close, confirm that the batteries are inserted in
the proper orientation. Refer to step 2 above.

Battery cover screw

Battery cover

Battery sleeve

Battery
cover
tab