HMH

Systemair AB
Industrivägen 3, SE-739 30 Skinnskatteberg
Tel [phone], Fax [phone]
[e-mail] • www.systemair.com
HMH / HPH
Technical data
General
Material Housing: Extruded aluminum (Brown)
Plastic parts: Self extinguishing Macrolon (White)
Ambient Temperature Sensor, -20...70°C
Housing, -20...60°C
Mounting With a universal bracket, for both wall and duct mounting
Weight 0,6 kg
Forms of protection IP54
This product conforms with the requirements of European LVD standards
IEC 669-1 and carries the CE mark
Output
Relay contact data 10 A, 250 VAC resistive at 25°C ambient
8 A, 250 VAC resistive at 60°C ambient
Not suitable for DC circuits.
Settings
Setpoint 10...100%RH
Hysteresis 3%RH at 45%RH
Step differential (HMH2) 0...25%RH
Proportional band
(HPH148, HPH1000) 7%RH
Spare parts and accessories
1608 Hair element, length 182 mm
1609 Microswitch
375 Protection tube.To be used when the humidistat is placed in ducts where
the air flow exceeds 10 m/s.
Wiring and Dimensions
Type
HMH 1 step, change-over contact
HMH2 2 step, change-over contact
HPH148 Proportional, 0-148 Ohm
HPH1000 Proportional, 0-1000 Ohm
Models
The contact between terminals 1 and 2
closes when the humidity exceeds the
setpoint value.
HMH
HMH2
HPH148
HPH1000
When the humidity increases the resistance
increases between terminals 1 and 3 while
the resistance between terminals 1 and 2
falls.
On the HMH2 the contact between
terminals 1 and 3 closes when the humidity
exceeds the setpoint value. When the
humidity continues to rise and exceeds
the sepoint value for step 2 the contact
between terminals 4 and 6 closes.
80
24
85
222
Ø35
11
In mm