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USER MANUAL
- PROPORTIONAL mode with 4-20mA humidity ambient probe + limit duct probe
(4-20mA):
This functioning mode allows steam production in proportional mode, humidifier will regulate
automatically the production of steam as per ambient request and the measured value into duct.
To set the second level variable S9=3 and make a bridge between terminal block 10 and 11,
connect 4-20mA humidity probe signal to terminals 8 and 9, signal RH to terminal 9, +V to
terminal 8. Connect 4-20mA duct probe signal to terminals 6 and 7, signal RH to terminal 7, +V
to terminal 6.
For more explanations about duct probe see chap. 3 “PROGRAMMING” (StC, r0, t1 variables).
- PROPORTIONAL mode with 0-10Vdc reference signal + limit duct probe 4-20mA:
This functioning mode allows steam production in mode proportional to 0-10V reference signal
and the measured humidity into duct.
To set the second level variable S9=4 and make a bridge between terminal block 11 and 12,
connect 0-10V reference signal to terminals 13 and 14, +V to terminal 13, GND to terminal 14.
Connect 4-20mA duct probe signal to terminals 6 and 7, signal RH to terminal 7, +V to terminal
6.
For more explanations about duct probe see chap. 3 “PROGRAMMING” (StC, r0, t1 variables).
Enabling
RH% Amb. humidity
transducer (4‐20mA)
RH% Duct humidity
probe (4‐20mA)
Enabling
RH% Duct humidity
probe (4‐20mA)
External 0‐10 V
reference signal
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