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Automated Pressure Calibrator

CPC 6000

76 Mensor/WIKA Operating Instructions - CPC 6000

8.6.8 Delta Control Limits

The default control limits for the Delta channel are the maximum limits possible. Certain combinations

of setpoints will generate an illegal setpoint on the slave channel. Note that whether or not the setpoint

is illegal is dependent on the measured reading of the leading channel. In order to prevent the CPC

6000 from rejecting control points that may become legal in the future, all possible setpoints are al

lowed unless restricted by setting the control limits to other values.

8.6.9 Delta Units Type

The delta units type is Differential and a D appears after the units label. Emulation is not available on

the delta channel. If channel A and B are not set to the same pressure type, the delta reading may be

ambiguous.

8.6.10 Setup Screens

The delta channel does not have the following setup buttons: STATUS, CAL, TEST, CONTROL CAL,

control parameters except limits and stable. To change parameters on the slave channel, you must

select the A,B (normal) screen source.

8.6.11 New Commands

Table 8.6.11- New Commands

Command Data Function/Response

CHAN D

None Sets the active channel to the Differential channel.

SCREENSRC A,B

None Sets the CPC 6000 to normal operation screen dis-

playing A and B channels.

SCREENSRC

A,Delta

None Sets the CPC 6000 to display A channel as normal,

and Delta channel replaces the B channel location.

In this mode the “A” channel is considered the lead

ing channel.

SCREENSRC

Delta,B

None Sets the CPC 6000 to display B channel as normal,

and Delta channel replaces the A channel location.

In this mode the “B” channel is considered the lead

ing channel.

SCREENSRC? <sp>{A,B or A,Delta

or Delta,B}<cr><lf>

Returns screen source as one of the above options.

*DELTAFUNC A-B

None Sets the delta to be the result of the channel A read-

ing – channel B reading.

*DELTAFUNCB-A None Sets the delta to be the result of the channel B read-

ing – channel A reading.

*DELTAFUNC? <sp>{A-B or B-A}

Returns delta function as one of the above options.

*NOTE: Chan D must be the active channel.

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