Vaisala DEWCAP DM500 Guia do Utilizador descarregar pdf (Página 99)

Chapter 16 _____________________________________________________ Serial Line Commands

VAISALA _______________________________________________________________________ 97

Select the quantity, setpoints and hysteresis and set the criteria for

enabling the function. See more about the relays from page 77.

Use the following quantity abbreviations:

TDF/TD/H2O/RH/PW/TW/A/ANTP/X/H/DT/T/P/FLOW/+TDF/

+TD/+PW

Enabling criteria keywords:

OFF relay is never enabled (inactive)

STOP relay is enabled when dewpoint measuring status is STOP

ERR relay is enabled when dewpoint measuring status is ERR

OK relay is enabled when dewpoint measuring status is OK

WAIT relay is enabled when dewpoint measuring status is WAIT

ON relay is always enabled

Any combination of status STOP, ERR, OK and WAIT can be chosen.

Keywords OFF and ON can be used only alone.

Example:

>rsel tdf t

Re1 Tdf above : 20 'C ? 0

Re1 Tdf below : -20 'C ? -20

Re1 Tdf hyst : 2 'C ? 2

Re1 enable: ERR ? wait ok

Re2 T above : 30 'C ? 30

Re2 T below : 20 'C ? -40

Re2 T hyst : 1 'C ? 3

Re2 enable: ON ? wait ok

ASEL Setting the Analog Outputs

Syntax: ASEL [x y z]<cr>

where

x = quantity for the channel 1

y = quantity for the channel 2

z = quantity for the channel 3

Select the quantity and scaling and set the criteria for enabling the

function. See more about the analog outputs from page 75.

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Vaisala DEWCAP DM500 Guia do Utilizador Página 99