Ideal for unattended continuous use of dehumidifiers.

If the switching socket of the HG 135 is connected to the mains, then the room hygrostat automatically controls a connected device when the preselectable humidity threshold is exceeded. The optimal solution for flexible humidity-dependent control of humidifiers or dehumidifiers with up to 10 A current consumption. Among others, applicable for dehumidifiers from Trotec up to TTK 400.

The Trotec hygrostats HG 110, HG 120 and HG 135 are technically identical and differ only in their connection type. The HG 110 has a 6.35 mm jack plug. The HG 120 has a 4-pin DIN plug and the HG 135 is offered as a 230 V version with a maximum switching load of 10 A and a CEE 7/3 combination socket.

The external hygrostat HG 135 in combination with the matching dehumidifier serves as a two-point controller for controlling the relative humidity, for example, on indoor construction sites, in basement rooms, in climate control cabinets or for controlled dehumidification of office and computer rooms. Other areas of application are warehousing for goods or foodstuffs, cold storage rooms for fruit and vegetables, greenhouses of horticultural businesses, textile industry, paper and printing industry, film industry, hospitals. Wherever humidity needs to be controlled or monitored, the HG 135 with the associated dehumidifier is generally applicable.

Mode of operation and mounting location

The mounting location should be chosen to ensure a representative humidity measurement, i.e. the humidity readings at the mounting location should match those of the room and the humidistat should be located in the air flow. The room hygrostat responds quickly and accurately to changes in humidity. By adjusting the setpoint knob, the lever system is intervened in such a way that when the set humidity is reached, the internal microswitch is actuated.