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Hygro and Hygrothermal Transducers (Capacitive) for Air Conditioning Applications (907020)

Features

For measuring relative air humidity and temperature

  • Available in the indoor, wall-mounted, and duct version
  • Compact rod versions with connecting cable or robust terminal head
  • With current and voltage outputs as well as passive temperature output
  • Indoor and wall-mounted version can be delivered with two-line LCD display

Applications

  • For versatile air conditioning and ventilation applications

Description

Designed for the most frequently used ventilation and air conditioning applications, these measuring probes are characterized in particular by their easy installation, robust form, and reliable humidity measurement technology.
The relative air humidity is recorded by a humidity-dependent capacitor. The capacitive sensor element consists fundamentally of a carrier plate upon which electrodes are placed with a hygroscopic layer of polymer over the top. This polymer film absorbs or releases water molecules from the medium being measured (air), thereby changing the capacity of the capacitor. A downstream electronic circuit converts the capacity corresponding to air humidity, and produces a standardized current or voltage signal.
The measuring probes are only designed for atmospheric pressure systems and non-aggressive gases. They are non-condensing and guarantee a reliable humidity measurement for each working range. Versions are available with an additional temperature duct for extended application.
The measured values are transferred by way of standardized output signals with 4 to 20 mA, 0 to 1 V, or 0 to 10 V at the subsequent electronics. Some versions are also optionally available with a passive Pt100 temperature output, which rules out costs for extended electronics.
The new indoor and wall-mounted case was specifically designed to meet the requirements of the user with regard to ease of assembly and maintenance, as well as looking to optimize measurement technology.. A separate, removable case bottom section with predefined mounting holes ensure, among other things, very simple installation of the indoor version. The holes are also suitable for flush-mounted socket assembly. The simple but practical sealing system also enables easy opening and closing of the device without requiring a great deal of effort. The robust wall case with increased IP65 humidity protection accounts for this requirement. For example, only a single screw is necessary here to secure the device.
Both new variants can be delivered with a two-line LCD display, which enables the simultaneous display of current humidity and temperature measured values in the range of -30 to +60 (+80) °C depending on the version.
 

Accessories

Accessory articles

Article number Product description Price / piece
Humidity sensorcheck: 33%rF Feuchte 90.7020 907020 907020/93 907020/93-820 90.7021 907021 907021/93 907021/93-820 90.7022 907022 907022/93 907022/93-820 90.7023 907023 907023/93 907023/93-820 90.7031 907031 907031/93 907031/93-820 90.7032 907032 price on request

(in stock)

Humidity sensorcheck: 53%rF Feuchte 90.7020 907020 907020/93 907020/93-821 90.7021 907021 907021/93 907021/93-821 90.7022 907022 907022/93 907022/93-821 90.7023 907023 907023/93 907023/93-821 90.7031 907031 907031/93 907031/93-821 90.7032 907032 Galltec price on request

(in stock)

Humidity sensorcheck: 76%rF Feuchte 90.7020 907020 907020/93 907020/93-822 90.7021 907021 907021/93 907021/93-822 90.7022 907022 907022/93 907022/93-822 90.7023 907023 907023/93 907023/93-822 90.7031 907031 907031/93 907031/93-822 90.7032 907032 price on request

(in stock)

Stainless steel sinter filter "ZE21" (90.7020) 907020/90-803 907020/90 Edelstahl ZE21 907020 90.7020 Feuchte 90.503 Filter Sinterfilter price on request

(in stock)

Plastic grid net filter "ZE17" (90.7020) 907020/90-804 907020/90 ZE17 907020 90.7020 Feuchte Filter Netzfilter Kunststoffgitter price on request

(in stock)

Plastic grid diaphragm filter "ZE20" (90.7020) 907020/90 907020 90.7020 Feuchte 90.503 Kunststoffgitter ZE20 price on request

(in stock)

PTFE filter "ZE18" (90.7020) 907020/90 907020 90.7020 Feuchte 90.503 Kunststoffgitter ZE20 price on request

(in stock)

Mounting plate (-flange) "ZA20" (90.7020) 907020/91-818 907020/91 907020 Feuchte ZA20 Befestigungsplatte Befestigungsflansch Galltec price on request

(in stock)

606710/73-00-00-000-00 90.515 907020 907020/92 907020/92-764 90.7031 907031 907031/90 907031/90-764 90.526 90.7032 907032 Feuchte Haltestativ Wandhaltevorrichtung price on request

(in stock)

Plastic grid diaphragm filter "ZE08" (D=12mm) 907020/90 907020 90.7020 Feuchte 90.503 Kunststoffgitter ZE20 price on request

(in stock)

PTFE filter "ZE05" (D=12mm) 907020/90 907020 90.7020 Feuchte 90.503 price on request

(in stock)

Article number Product description Price / piece

basic type: Hygro-/hygrothermo transducer room version (new)

version: humidity (channel 1 output)

range(s): 0..100% rH/ (humidity only)

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer room version (new)

version: humidity and temperature

range(s): 0..100% rH/ 0..+50°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer room version (new)

version: humidity and temperature

range(s): 0..100% rH/ 0..+50°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer wall mount version (new)

version: humidity (channel 1 output)

range(s): 0..100% rH/ (humidity only)

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer wall mount version (new)

version: humidity and temperature

range(s): 0..100% rH/ -30..+70°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer wall mount version (new)

version: humidity and temperature

range(s): 0..100% rH/ -30..+70°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer duct version

version: humidity (channel 1 output)

range(s): 0..100% rH/ (humidity only)

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer duct version

version: humidity and temperature

range(s): 0..100% rH/ -30..+60°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer duct version

version: humidity and temperature

range(s): 0..100% rH/ 0..+50°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer duct version

version: humidity and temperature

range(s): 0..100% rH/ 0..+100°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer rod version with 1,5m connection cable

version: humidity (channel 1 output)

range(s): 0..100% rH/ (humidity only)

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer rod version with 1,5m connection cable

version: humidity (channel 1 output)

range(s): 0..100% rH/ (humidity only)

Output: 0..10 V / 0..10 V

price on request

basic type: Hygro-/hygrothermo transducer rod version with 1,5m connection cable

version: humidity and temperature

range(s): 0..100% rH/ -30..+70°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer rod version with 1,5m connection cable

version: humidity and temperature

range(s): 0..100% rH/ -20..+80°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer rod version with 1,5m connection cable

version: humidity and temperature

range(s): 0..100% rH/ -30..+70°C

Output: 0..10 V / 0..10 V

price on request

basic type: Hygro-/hygrothermo transducer rod version with J-shaped terminal head

version: humidity (channel 1 output)

range(s): 0..100% rH/ (humidity only)

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer rod version with J-shaped terminal head

version: humidity (channel 1 output)

range(s): 0..100% rH/ (humidity only)

Output: 0..10 V / 0..10 V

price on request

basic type: Hygro-/hygrothermo transducer rod version with J-shaped terminal head

version: humidity and temperature

range(s): 0..100% rH/ -30..+70°C

Output: 4..20 mA analog

price on request

basic type: Hygro-/hygrothermo transducer rod version with J-shaped terminal head

version: humidity and temperature

range(s): 0..100% rH/ -30..+70°C

Output: 0..10 V / 0..10 V

price on request

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