Vaisala HMP260 SERIES Manual de servicio descargar pdf (Pagina 53)

HMP260 SERIES

HMP260-U017en-1.5 Operating Manual

1997-11-25 47

• The stabilization of the sensor can be monitored by entering c <cr>

instead of the reference value.

6.2.2.2 Using display/keypad commands

Disconnect the security lock jumper!

• Leave the reference instrument and the transmitter for at least 4 hours

in the same space so that their temperatures have time to equalize.

Remove the filter cap prior to calibration.

• Check the transmitter against the reference.

• Select Cali in the main menu and then T cal; select two-point

calibration T 2 point cal. Change the first point reading with the

arrow keys and press ENT.

• Change the temperature and check the transmitter again against the

reference.

• Check that the reading corresponds to the reading of the reference

instrument. If not, adjust the second point

• If necessary, change the second point reading with the arrow keys and

press ENT.

6.2.2.3 Using LED commands

Disconnect the security lock jumper!

• Leave the reference instrument and the transmitter for at least 4 hours

in the same space so that their temperatures have time to equalize.

Remove the filter cap prior to calibration.

• Check the transmitter against the reference.

• Connect an ammeter/voltmeter to the analogue outputs (connector

X2). Give command ¡¡l¡. At the first calibration point the LED

on the left flashes; adjust the first point (offset) with the arrow

switches to the same reading with the reference and press ENT

switch.

• Change the temperature and check the transmitter again against the

reference.

• Check that the reading corresponds to the reading of the reference

instrument. If not, adjust the second point.

• If necessary, adjust with the arrow switches to the correct value and

press ENT. At the second calibration point the second LED from the

left flashes.

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Vaisala HMP260 SERIES Manual de servicio Pagina 53