beautypg.com

Rsel – Vaisala PTU300 User Manual

Page 140

background image

User's Guide _______________________________________________________________________

138 __________________________________________________________________ M210796EN-G

8.

Select Relay enable. Press the ON/OFF key to enable/disable the
relay.

RSEL

Use the serial line to select the quantity, setpoints and hysteresis or
enable/disable the relay outputs. Enter the RSEL command.

RSEL [q1 q2]

where

q1

=

Quantity for the relay 1 or Fault/Online

q2

=

Quantity for the relay 2 or Fault/Online

Factory setting: All relays disabled.

Use the quantity abbreviations presented above. For quantities and their
abbreviations and pressure units, see Table 4, Table 5, and Table 6 on
page 22.

Example of window limit switch:

Selecting relay 1 to follow relative humidity measurement and relay 2 to
follow temperature measurement. Two relay setpoints are set for both
relays.

>rsel rh t
Rel1 RH above: 0.00 %RH ? 30
Rel1 RH below: 0.00 %RH ? 40
Rel1 RH hyst : 0.00 %RH ? 2
Rel1 RH enabl: OFF ? ON
Rel2 T above: 0.00 'C ? 30
Rel2 T below: 0.00 'C ? 40
Rel2 T hyst : 0.00 'C ? 3
Rel2 T enabl: OFF ? ON
>