Vaisala PTU200 Series Guía de usuario descargar pdf (Pagina 38)

USER'S GUIDE_______________________________________________________________________

34 ___________________________________________________________________ M210195EN-A

LCI Entering linear pressure corrections

LCI n <cr>

where:

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

The LCI command is used to enter new linear offset and offset/gain

pressure corrections to the transmitter. Note that the linear corrections

are given to each pressure transducer separately.

Entering new linear corrections is protected by switch SW4. 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 by using the LC OFF. Pre-

calibration of the transmitter then gives the required new corrections.

NOTE

The new linear corrections will always cancel the previous

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

(see CALD command).

Activate the new linear corrections with the LC ON command. Use

ESC to abort without executing the command.

In the following, an example of performing an offset adjustment for

pressure transducer P1 and an offset and gain adjustment for pressure

transducer P2 is given.

>lc off <cr>

Linear adj. : OFF

>lci 1 <cr>

P1 1. reading ? 1013.25 <cr>

correction ? -0.1 <cr>

P1 2. reading ? <cr>

>lci 2 <cr>

P2 1. reading ? 800.00 <cr>

correction ? 0.05 <cr>

P2 2. reading ? 1000.00 <cr>

correction ? -0.02 <cr>

>lc on <cr>

Linear adj. : ON

Reading Correction Reading Correction

1013.250 -0.100 800.000 0.050

1013.250 -0.100 1000.000 -0.020

NOTE

Always remember to return the switch SW4 to write DISABLE

position (OFF).

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Vaisala PTU200 Series Guía de usuario Pagina 38