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RPM4/HPMS A70M/A20M-AF OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company Page 58
3.5.1.1 EDIT AUTOZ
The edit AutoZ function should be used only with great care as entering
inappropriate values may result in out of tolerance measurements. In normal
operation, the value of the AutoZ offset, P
offset
, should be changed by running AutoZ
using [AutoZ] (seen Section 3.3.9).
Before editing P
offset
, see Section 3.5.1,
PRINCIPLE.
To edit the current P
offset
value for the active Q-RPT and measurement mode,
press [SPECIAL], <1AutoZ>, <3edit>. The display is:
1. Indication of active measurement mode
(<abs> for absolute, <gage> for gauge).
2. Active Q-RPT for which P
offset
is being viewed.
3. Edit field for value of P
offset
.
Poffset, Abs Hi
275 Pa
Edit P
offset
as desired and press [ENT] to activate the new value. Press [ESC] to
abandon changes.
The value of P
offset
is always displayed and entered in Pascal (Pa).
3.5.2 <2REMOTE>
PURPOSE
To configure the RPM4 COM1, COM2 and IEEE-488 (GPIB) communication ports. To test COM1
and COM2 communications. To select the remote programming communications format.
PRINCIPLE
The RPM4 has two RS-232 communications ports referred to as COM1 and COM2 and a
single IEEE-488 (GPIB) port. COM1 or the IEEE-488 port is for communicating with a host
computer (see Section 4), and COM2 is reserved for communicating with an external device
(e.g. an RPMx, a multimeter, etc.). These ports’ settings can be viewed and changed using
[SPECIAL], <2remote>.
RPM4 has two remote communications formats, classic and enhanced (see Section 4.3). The
active format can be selected.
A self test is supplied for RS-232 communications. The self test allows verification that the
RPM4 RS232 ports (COM1 and COM2) are operating properly and that a valid interface
cable is being used.
OPERATION
To access the communications settings, press [SPECIAL], <2Remote>.
• Select <1COM1> to view and edit COM1 settings (see Section 3.5.2.1.).
• Select <2COM2> to view and edit COM2 settings (see Section 3.5.2.1.).
• Select <3IEEE> to view and edit IEEE-488 settings (see Section 3.5.2.2).
• Select <4format> to select the remote communications command format (see Section 3.5.2.3).
• Select <5RS232test> to run the COM1 and COM2 communications test (see Section 3.5.2.4).