HGMini0 pages

Galltec Mess- und Regeltechnik GmbHt

D-71145 Bondorf . Germany t
Tel. +49 (0)7457-9453-0 . Fax +49 (0)7457-3758 t
E-Mail: sensoren@galltec.de . Internet:www.galltec-mela.det

MELA Sensortechnik GmbH

D-07987 Mohlsdorf-Teichwolframsdorf . Germany
Tel. +49(0)3661-62704-0 . Fax +49(0)3661-62704-20
E-mail:mela@melasensor.de . Internet: www.galltec-mela.de

Product info sheet
Room humidistat t

with Polyga® measuring element
with adjusting knob inside the housing

HGMini
HGMini-i

Type Survey
Type

applied directives / standards
t low-voltage directive 2014/35/EU
t
EMC directive 2014/30/EU
ttt DIN EN 60730-1:2012-10
ttt DIN EN 60730-2-13:2008-09
action .............................................................................. 2.C
rated impulse voltage .................................................... 4 kV
ball indentation test for temperature ............................. 92°C
housing .............................................. solid plastic, light grey
protective system .......................................................... IP20
degree of pollution .............................................................. 2
dimensions .......................................................85x55x36mm
weight ............................................................... approx. 60 g

42047017

changeover contact (gold plated):
1 x max. 100 mA

42047018

changeover contact (gold plated):
1 x max. 100 mA
with internal scale

42047017
00000110

changeover contact (gold plated,
IP67): 1 x max. 100 mA

HGMini 10A

allowable ambient temperature ............................... 0...60°C
air-speed ............................................................. 0.2...8 m/s
installation altitude ....................... ≤ 4.000m above sea level
influence of temperature
t
ref. to 23 °C ............................................. ≤ +/- 0.2 % r.h. / K
typ. response time t50 at v=2m/s ................................ 1.2min
fixing ................................................... slots in housing base
mounting position ......... preferably ventilation slots at rightangles to wind direction
contacting .......................... connecting terminals in the case

changeover contact: 1 x max. 5 A
with internal scale

HGMini

optional microswitch up to 10 A
t max. 250VAC and
tt 0.1 ... 10A ohmic load for dehumidifying
tt 0.1 ... 3A ohmic load for humidifying
tt 0.1 ... 1.5A for inductive load (power factor >0.8)

42042018

HGMini-i

optional microswitch with gold contact
breaking capacity
t
max. 48 VAC and
tt 1...100 mA

changeover contact: 1 x max. 5 A

HGMini

breaking capacity
t max. 250VAC and
tt 0,1 ... 5A ohmic load for dehumidifying
tt 0,1 ... 2A ohmic load for humidifying
tt 0.1 ... 1A for inductive load (power factor >0.8)
t
lifetime .................................. > 6.000 breaking cycles
t Please observe the notes on voltage.

Type of contact

42042017

HGMini-i

Technical Data
measuring element ................. Polyga®-measuring element, t
tttt
water resistent
control range ....................................................... 40...90%rh

Order no.

HGMini

42043017

changeover contact: 1 x max. 10 A

Description of the humidistat
The humidity measuring element which is manufactured by Galltec
under the name Polyga®, consists of several plastic fabric bands
each with 90 individual fibres with a diameter of 3 µm each.The
fibres are provided with hygroscopic characteristics by a special
process. The measuring element adsorbs and desorbs moisture.
The effect, swelling predominantly in longitudinal direction, is transmitted via a lever system to a microswitch with a small switching
distance. The measuring element responds to the change in air
humidity. It is possible to adjust the lever system by setting the
adjustment knob so that the microswitch is actuated when the set
air humidity is reached.
The fan shaped measuring element is accomodated inside the housing and must be protected against coarse dust, dirt and water. The
humidistats are designed for pressureless systems. The installation
location must be selected so that condensed water cannot enter
the inside of the housing. The installation position preferably with
ventilation slots at right-angles to wind direction.
Application
The humidistat type HG Mini is used as an on-off controller to
control the relative air humidity. It can be used to control air humidifiers and dehumidifiers in offices and computer rooms. Other
areas of use are storage of foodstuffs and luxury foods, cooling
rooms for fruit and vegetables, greenhouses for gardening use,
the textile industry, the paper and printing industry, the film industry and hospitals.
The room humidistat HG Mini-i is designed so that the adjusting
knob and the scale are inside the housing. This makes unauthorized manipulation by third parties more difficult.

Notes on voltage
The measurement location of the humidity controller should
be selected such that there is no build-up of condensate on
or in the device. This applies particularly for operation with
a voltage higher than 48V. If the voltage is higher, there is a
risk of voltage arcing in the event of water condensation on
the microswitch or connecting terminals which might destroy
the controller. In the case of voltage below 48V, the humidity
controller can be used up to 100%rh.

This information is based on current knowledge and is intended to provide details of our products and their possible applications. It does not, therefore, act as a guarantee of specific properties of the products described or of their suitability for a particular application. It is our experience that the equipment may be used across a
broad spectrum of applications under the most varied conditions and loads. We cannot appraise every individual case. Purchasers and/or users are responsible for
checking the equipment for suitability for any particular application. Any existing industrial rights of protection must be observed. The perfect quality of our products is
guaranteed under our General Conditions of Sale. Issue: December 2015 HGMini_e. Subject to modifi