DH Instruments E-DWT-H, Руководство по эксплуатации и обслуживанию

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4. REMOTE OPERATION
Page 85 © 2009 DH Instruments, a Fluke Company
HEAD
Purpose Read or set the fluid head settings.
Command
Query “HEAD
height, units, fluid
”
“HEAD?”
Classic “HEAD=
height, units, fluid
”
“HEAD”
Defaults “HEAD 0, cm, N2”
Arguments
height:
The height of the test in relation to the RPM4-E-DWT. The value is positive if the
test is above the RPM4-E-DWT, or negative if below the RPM4-E-DWT. The
value can be between - 9999 and 9999. Setting the value to ‘0’ disables the head
correction.
Units:
The height units. This must be “in” or “cm”.
gas:
The fluid type. This must be “N2”, “Air”, “He”, “Oil”, “H2O”, or “User”.
Remarks The RPM4-E-DWT can make a fluid head correction to allow it to display the pressure at a level
other than the reference level of the RPM4-E-DWT.
Example
(enhanced) Cmd sent:
Query reply: “HEAD? 10,in,N2”
“10, in, N2”
Example
(classic) Sent:
Reply: “HEAD=10,in,N2”
“10, in, N2”
Errors ERR# 2:
ERR# 6:
ERR #7:
The fluid text is too long
The height is not within given limits or the unit is invalid.
The fluid text is invalid
See Also: 3.7.8, 3.9.3
ID
Purpose
Read or set the user defined instrument identification label.
Command
Query
“ID
string
”
“ID”
Classic
“ID=
string
”
“ID”
Arguments String:
An alphanumeric string up to 12 characters long.
Remarks
The user defined ID label can be used to allow the user to “tag” the RPM4-E-DWT with a
unique identifier. This ID is stored in non-volatile memory and cannot be erased by a power
failure, system fault or reset. The ID should not be changed frequently, as the non-volatile
memory may fail after 100,000 write operations.
Example
(enhanced)
Cmd sent:
Query reply “ID RPM4-E-DWT #A01”
“RPM4-E-DWT
#A01” (No reply if
GPIB-488)
Example
(enhanced)
Cmd sent:
Query reply “ID? RPM4-E-DWT #A01”
“RPM4-E-DWT #A01”
Example
(classic)
Sent:
Reply: “ID=RPM4-E-DWT #A01”
“RPM4-E-DWT #A01”
Errors
ERR# 2 Text argument is too long (more than 12 characters)
See Also
3.9.5.4
L2 / L3
Purpose Read or set the type of program command format to use (classic or enhanced).
Command
“L2” enables “classic” mode
“L3” enables “enhanced” mode
Defaults “L2” (Classic mode)
Remarks The user can select the type of remote command format using these simplified commands.
There is no query format. This format must agree with the format sent to the RPM4-E-DWT.
This command is a replacement for the “MSGFMT” command.
Example
(enhanced) Cmd sent:
Query reply: “L3”
“L3”
Example
(classic) Sent:
Reply: “L2”
“L2”
See Also “MSGFMT”
4.3, 3.9.2.3