The newest generation of humidity/temperature transducer offers even greater possibilities to compensate the special sensor characteristics due to the newest microprocessor technology. Regarding precision, temperature stability and functionality a new dimension is entered.
The transducer can used for almost all applications due to the different types (e.g. wall or channel mount, with separated probe or with heat absorption hat) and the wide temperature range (electronic: -25°C...+50°C; sensor: -40...+120°C).
- with/without on-site display
- output ranges freely scalable
- adjustment by operator possible
- output signals for humidity are electrically isolated
- available output signals: 4-20 mA, 0-1 V or 0-10 V
Technical data:
Measuring ranges:
Humidity: 0,0 ... 100,0%RH (temperature compensated)
Recommended humidty range: 20,0 ... 80,0%RH (standard)
5,0 ... 95,0%RH (with option high humidtiy)
Display options: with option UNI an alternative display unit can be shown instead of the humidity measuring value. The unit selection will be done via the interface or at the keyboard.
Atmospheric humidity: 0,0 ... 640,0 g/kg
Absolute humidity: 0,0 ... 200,0 g/m³
Accuracy: (at 25°C and in recommended range)
Display: humidity ±2,5%RH
Add. output signal: each ±0,2% FS
Temperature compensation: automatically
Output signal: 1 x 4-20mA (2-wire), freely scalable
option: 0-1V, 0-10V (other output signals upon request)
Connection: 4 - 20 mA (2-wire)
for option AV01, AV10: 0 - 1 (10) VDC (3-wire)
for option AV01G, AV10G: 0 - 1 (10) VDC (3- or 4-wire)
Auxiliary energy: 12 ... 30 VDC or 18 ... 30 VDC (for output 0-10 V)
Reverse voltage protection: 50V, permanently
Perm. impedance (at 4-20mA): RA [O] = (Uv [V] - 12V) / 0,02 A
Permissible load (at 0-1(10)V): RL [O] > 3000 O
Display: approx. 10 mm high, 4-digit LCD-display, alternating humidity and temperature display
Working temperature: -25 to 50 °C (electronics)
Sensor head and tube: -40 to 100 °C - for short time up to 120°C
Storage temperature: -25 to 70°C
Relative humidity (electronic): 0 to 95%RH (non-condensing)
If there is a risk of condensation due to temperature changes, please use our encapsulated or lacquered types (optionally available).
Housing: ABS (IP65)
Sensor tube: tube 14 mm Ø, with screw-type protection cap
Sensor length: 50 mm (...1R) or 220 mm (...1K, ...2K)
option: 300 mm, 400 mm, 500 mm
Electric connection: elbow-type plug acc. to EN 175301-803/A (IP65),
Mounting: 4 housing holes for wall mounting or by means of plastic tube clamps for duct mounting
Functions: min-/max-value memory, offset and slope adjustable, output signal scalable
The transducers are available in 3 variants:
(Please specify when ordering.)
GRHU-1R-MP: Surface mounting with display, sensor tube at the side, tube length: 50mm
GRHU-1K-MP: Duct mounting with display, sensor tube at the side, tube length: 220mm
GRHU-2K-MP: Duct mounting without display, sensor tube downwards, tube length: 220mm
Options:
-HO high humidity sensor
-UNI selectable humidity display unit
-LACK PCB lacquered on both sides
-FL300, FL400, FL500 longer sensor tubes
-AV01, -AV10 analog output: 0-1V or 0-10V
-KABEL with separate sensor tube
-SHUT heat absorption hat / weather protection shield
