Vaisala PTU200 Series Betriebsanweisung PDF herunterladen (Seite 40)

USER'S GUIDE_______________________________________________________________________

36 ___________________________________________________________________ M210195EN-A

MPCI Entering multipoint pressure corrections

MPCI n <cr>

where:

n = number of the pressure transducer (1 or 2)

The MPCI command is used to enter new multipoint corrections to the

transmitter. Note that the user must give the multipoint corrections to

each pressure transducer separately.

Turn the switch SW4 to write ENABLE position (ON) to be able to

enter new linear and multipoint corrections to the transmitter.

Deactivate the previous corrections first using the LC OFF and/or

MPC OFF commands. Precalibration of the transmitter then gives the

required corrections.

When entering new multipoint corrections, always start at the low-

pressure end and then go up the pressure range.

NOTE

The new multipoint corrections will always cancel the previous

corrections as well as the valid date of calibration of the transmitter

(see CALD command).

Use ESC to abort without executing the command. The new

multipoint corrections are activated with the MPC ON command.

In the following, an example of performing a multipoint adjustment

for pressure transducer P1 is given.

>lc off <cr>

Linear adj. : OFF

>mpc off <cr>

Multipoint adj: OFF

>mpci 1 <cr>

P1 1. reading ? 499.72 <cr>

correction ? -0.07 <cr>

P1 2. reading ? 599.20 <cr>

correction ? -0.08 <cr>

P1 3. reading ? 698.71 <cr>

correction ? -0.01 <cr>

P1 4. reading ? 801.12 <cr>

correction ? -0.01 <cr>

P1 5. reading ? 900.61 <cr>

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Vaisala PTU200 Series Betriebsanweisung Seite 40