Model 2002 Vacuum Gauge Page 24 of 37
When a lower case character is present in an example it represents an option.
Character Description Valid Inputs:
a RS-485 Address (hexadecimal 0-9, A-F)........................................................01 - FF
m Most Significant Digit Of Mantissa..................................................................... 1 - 9
d Decimal Digit...................................................................................................... 0 - 9
e Exponent............................................................................................................. 0 - 5
u Unit Of Pressure........................................................................................T, M, or P
, Command Separator (comma) ............................................................................N/A
<CR> Command Terminator (carriage return)..............................................................N/A
Interrogation Commands
Command Description Format Sample Response
Transmit Averaged Pressure P<CR>................................................ Pa: 1.23456e+0 Torr<CR>
Transmit Pirani Pressure R<CR>..................................................Pr: 1.98765e-3 Torr<CR>
Transmit Piezo Pressure Z<CR>................................................ Pz: 7.65432e+2 Torr<CR>
Transmit RS-485 Address A<CR>..............................................Multidrop Address: 01<CR>
Transmit Decimation Ratio D<CR> ............................................. Decimation Ratio: 255<CR>
Transmit Selected Gas # G<CR> .....................................................................Gas#: 0<CR>
Transmit High Set point H<CR> ............................................... Hi: 1.00000e+1 Torr<CR>
Transmit Low Set point L<CR>.................................................Lo: 1.00000e-2 Torr<CR>
Transmit Device Status S<CR> ........................................................................ 00044<CR>
Transmit Turnaround Delay T<CR> ........................................................Comm Delay: 6<CR>
Transmit Selected Units U<CR> ..........................................................................Torr<CR>
Transmit Software Version# V<CR>.................................... Hastings Instruments - Model 2002
..................................................Version 1.60 - (07-02-2002)<CR>
Parameter Modification Commands
Command Description Format Valid Range:
Modify High Set point H={m.dd}E{+e}<CR> ...................................... 1.00000e-9 to 9.99999e+9
Modify Low Set point L={m.dd}E{-e}<CR>........................................ 1.00000e-9 to 9.99999e+9
Modify Selected Gas # G={d}<CR> 0 To 4 ............................ (Decimal)
Modify Selected Units U={u}<CR> T, or M, ............{or P, if Available}
Modify Decimation Ratio D={dddd}<CR> 63 To 7936..................... (Decimal)
Modify RS-485 Address *{aa}A={aa}<CR> 1 To FF ...................(Hexadecimal)
Modify Turnaround Delay *{aa}T={dd}<CR> 0 To 255......................... (Decimal)