Rev. 02-19 Page 19
USER MANUAL
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[S9=5] PROPORTIONAL functioning with 0-10Vdc ambient humidity probe
(INTEGRATED HUMIDISTAT):
This type of operation involves proportional steam production; the humidifier will automatically
regulate the steam production according to the request in the environment depending to the set
point. The consent is provided by a 0-10Vdc humidity probe (0-100%RH) that, in addition to
regulating steam production, allows to show the relative humidity of the environment directly
on the humidifier display. Set the second level variable
S9=5
and connect 0-10Vdc signal of the
humidity probe to clamps
16
and
17
; in particular, connect VRH signal to clamp
16
and
connect GND to clamp
17
.
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-
-
The Bp proportional band is the percentage value of humidity around the set point; the
humidifier works proportionally within this value. Example: if the proportional band is set on
default value 10% (±5% set point value) and humidity is set at 50%, below 45% the humidifier
will work at 100% of steam production; above 55%, the humidifier will not produce steam.
Between 45% and 55%, the humidifier will optimally regulate steam production.
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[S9=6] PROPORTIONAL functioning with 0-10Vdc ambient humidity probe + 0-10Vdc
humidity probe in air duct (INTEGRATED HUMIDISTAT):
This type of operation involves proportional steam production; the humidifier will automatically
regulate the steam production according to the request in the environment depending to the set
point and to the value measured in duct.
Set the second level variable
S9=6
and
connect 0-10Vdc signal of the humidity
probe (0-100%RH) to clamps
16
and
17
; in
particular, connect VRH signal to clamp
16
and connect GND to clamp
17
. Connect
0-10Vdc signal of the humidity probe in
air duct (0-100%RH) to clamps
22
and
23
;
in particular, connect VRH signal to clamp
22
and GND to clamp
23
.
For further informations on the humidity
probe in air duct, refer to chapter 3
“Programming” (variables StC, r0, t1).
RH% Ambient
humidity probe
Steam production request
RH% Ambient
humidity probe
0-10V
Enabling
GND
VRH
RH% Ambient humidity
probe
0-10V
Enabling
GND
VRH
GND
VRH
RH% Channel humidity
probe
0-10V
