Vaisala HUMICAP MMT330 Guide de l'utilisateur Page 129

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Chapter 4 _________________________________________________________________ Operation
VAISALA _______________________________________________________________________ 127
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 q3 q4]<cr>
where
q1
=
Quantity for the relay 1 or Fault/Online
q2
=
Quantity for the relay 2 or Fault/Online
q3
=
Quantity for the relay 3 or Fault/Online
q4
=
Quantity for the relay 4 or Fault/Online
Factory setting: All relays disabled.
The MMT330 measures the following quantities:
- Water activity (aw)
- Temperature (T) (metric unit: ºC, non-metric unit:ºF)
- ppm for transformer oil only (H
2
O) (optional quantity)
Example of window limit switch: Selecting relay 1 to follow aw
measurement and relay 2 to follow temperature measurement. Two relay
setpoints are set for both relays.
>rsel aw t
Rel1 aw above: 0.00 ? 0.3
Rel1 aw below: 0.00 ? 0.4
Rel1 aw hyst : 0.00 ? 0.02
Rel1 aw 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
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