ENGLISH
The electronic temperature and humidity regulators are used to switch heaters, cooling equipment,
filter fans or signal devices on or off if the temperature or humidity value rises above or falls below an
adjustable reference value. The regulators must only be used in stationary, closed electric cabinets.
There is a default response delay of approximately 5 sec.
VERSIONS
• Internal temperature and humidity sensor
• External temperature and humidity sensor
SAFETY CONSIDERATIONS
• Installation must only be performed by qualified electrical technicians in observation of the
respective national power-supply guidelines (IEC 60364).
• The safety measures according to VDE 0100 are to be ensured.
• The technical specifications on the type plate must be strictly observed!
• The device must not be repaired.
INSTALLATION GUIDELINES
• The regulator should be installed in the upper area of the electric cabinet as far as possible from heaters
or other heat-generating components.
• Alternatively, the external sensor enables detection of heat/humidity far from the regulator.
• The device must not be covered.
• The device must not be operated in environments with aggressive atmospheres.
• The device is to be installed vertically, i.e. with the connection terminals at the bottom.
HUMIDITY FUNCTION
If the relative humidity exceeds the value set on the humidity dial, the electric circuit is closed via
terminals 5-3. LED illuminates.
TEMPERATURE FUNCTION
If the ambient temperature drops below the value set on the temperature dial, the electric circuit is
closed via terminals 5-3. LED illuminates. If the ambient temperature rises above the value set on the
temperature dial, the electric circuit is opened via terminals 5-3.
North American standards for the wire gauges:
• Solid wire AWG 14 maximum
• Stranded with wire ferrule AWG 16 maximum
<0.5 N m
(4 . 4 l b - i n )
Rev. B
© 2018 Hoffman Enclosures Inc.
Electronic Hygrotherm
électronique Hygrotherm
Electrónico Hygrotherm
WARNING
AVERTISSEMENT
There is a risk of personal injury and equipment damage
if the connections are not observed or polarity is incorrect.
Il ya un risque de blessures corporelles et de dégâts matériels
si les connexions ne sont pas respectées ou la polarité est incorrecte.
Existe el riesgo de lesiones personales y daños al equipo
si las conexiones no se observan o polaridad es incorrecta.
PH 763 422 2211 • nVent.com/HOFFMAN
ADVERTENCIA
max. 10A, 120/240VAC
P/N 89104314
89104314