Specifications

5. MAINTENANCE, ADJUSTMENTS AND CALIBRATION

 OPERATION

To view the device channel measure signal and the current measure adder (A)

and multiplier (M), press [SPECIAL], <4cal>, select the desired device channel,

press <2meas>, select voltage or current, and press <1view>. The display is:

1. Measure value with the Measure cal adder

and multiplier applied (V or mA).

2. Indication that this is a display of the Measure

signal.

3. Device channel indicator.

4. Current value of the multiplier applied to the

Measure reading.

5. Current value of the adder (V or mA) applied

to the Measure reading.

While in the view screen, the [SET MFC] key is active so that set point values

can be changed.

To adjust the value of the measure adder (A) and/or multiplier (M), press

[ESCAPE] to return to the view/cal screen, and then press <2cal> to access a

screen in which the values of A and M can be edited. After entering the edited

values, press [ESCAPE] and return to <1view> to view the measure values with

the edited calibration coefficients applied.

See Section 5.2.1 for an explanation of adders and multipliers and their use in

adjusting electrical settings and readings.

5.2.2.4 <3SET>

 PURPOSE

To view and adjust the device channel set command signal.

See Sections 5.2.2.1 and 5.2.1 for information on MFC-CB device channel

signal calibration.

 PRINCIPLE

The device channel set value is entered by the operator locally using [SET MFC]

(see Section 3.2.8) or by remote command. Following execution of a set

comm

and, the actual set point value at the MFC is measured by the device

channel sense line. The set point value is then automatically adjusted as needed

(three iterations) to cause the value at the MFC to agree with the set command.

This process compensates for the various electrical influences that can cause the

electrical set value at the MFC to be different from the value output by

the MFC-CB.

3.0005 V Measure

0.00000V M1.0000 D1