Vaisala PTB200 - Manual (Page 25)

PTB 200 24 (28)
Digital Barometers
SSD/Operating Manual 24th February 1993 PTB200-O0284-1.1
Example of an offset and gain adjustment:
>LP
Ref1 ? (set first pressure level and enter value
here)
P : (the current non-corrected value
appears here)
Ref2 ? (set second pressure level and enter
value here)
P : (the current non-corrected value
appears here)
Use ESC to abort without executing a command.
Return the MEMORY jumper to the EEPROM write disable position.
4.2 Multipoint pressure adjustment
MPC OFF Multipoint correction off
MPCI
Multipoint correction input
MPC ON Multipoint correction on
MPC OFF
MPCI
MPC ON
The MPC/MPCI commands are used in multipoint pressure adjustment
at up to eight pressure levels.
If a new fine adjustment is needed, the previous multipoint corrections
must first be omitted with the MPC OFF command. Writing down the
previous multipoint corrections is recommended as they will be lost
when MPCI command is used. Precalibrate the barometer to find out
the new multipoint corrections; the corrections are then entered using
the MPCI command. The MPC ON command is used to activate the
new corrections.
Change the MEMORY jumper to the EEPROM write enable position.
Example of the multipoint pressure correction procedure:
>LIP
P offset 0 * 0.001 ? 0
P gain 0 * 0.00001 ? 0
>MPC OFF
Multip. corr. : OFF