WIKA CPC6000 - Manual (Page 76)

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}
<cr><lf> Returns delta function as one of the above options.
*NOTE: Chan D must be the active channel.