Specifications

SECTION 7 CALIBRATION

WARNING: These adjustments are factory set and should only be changed by a

qualified

person

using

calibrated equipment. Adjustment is not necessary during

the life of these

controllers.

7.1

Zero

(-cL-)

and Span

(cH)

Calibration

Unlock access to the calibration constants by entering the unlock

number (14) into location 9 (-cd-).

Use a tempemture calibmtor with a range appropriate for the unit to be

calibrated. Set in the value for low scale calibration, e.g. (1 % of range).

Step to -cL- (calibmte low [ZERO]) using tie index key on the 6075.

press the up/down keys on the 6075 until both instruments agree

press the ‘ENTER’ key.

Set in a value on the calibrator equivalent to the high-end capability of

the unit under test e.g. (95% of range).

Step to -cH- (calibrate high [SPAN]) using the INDEX key.

Press the up/down keys on the 6075 until both instruments agree.

Press the "ENTER" key.

Repeat steps2 thru 7 until readings agree. Some interaction between

Zero(-cL-) and Span (-cH-) calibration usually occurs

Lock out configumtion access, if desired, and return to set point by

pressing "SET POINT" key.

NOTE: Pressing index continuously selects -cH- or -cL- (Span and Zero) in

the calibrate mode to faciliite testing. Exit this mode by pressing the ‘SET

POINT" key.