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Humidity Meters - Measure Temperature 907031 JUMO

Mã sản phẩm: 907031
Sử dụng cho Model:
Hãng SX: Jumo
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Tình trạng: Còn hàng

Đặt hàng

Humidity measuring probes of the 907031 series use the hygroscopic feature of especially prepared plastic fibers to define the relative air humidity. Once prepared, the installed humidity sensing element is capable of absorbing moisture. Length variation is the external measurable effect. Humidity-dependent length variation is detected with precision mechanics, transferred to a potentiometer, and output as a linear resistance output at the connection terminals.

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Thông tin sản phẩm

Features


For indoor, air duct, and outdoor mounting
With resistance, current, or voltage outputs
Can be used continuously in areas of high humidity (up to 100 % RH) (duct version)
No voltage feed required for passive devices
In normal circulated air, the sensing element is largely maintenance free
For measuring relative humidity and temperature
Sensing element does not need any maintenance in clean air (no regeneration necessary)


Specification:

Sensing element Plastic, hygrometric
Sensing element is water-resistant and largely maintenance-free
Measuring/working range 0/30 to 100 % RH
Measuring accuracy ±2.5 % RH above 40 % RH
to tolerance characteristic below 40 % RH
TK = 0.1 % RH/°C (referred to 20 °C and 50 % RH)
Medium Air, unpressurized, not corrosive
Permissible air velocity Duct version: 8 m/sec max. (15 m/sec with wind shield)
Indoor version: 15 m/sec max
Response times 50 % time: 1.5 min at v = 2m/sec
Stabilization time: 30 to 40 min at v = 2 m/sec
Humidity output (passive) 0 to 100 Ω linear, 2-wire circuit
0 to 200 Ω linear, 2-wire circuit
0 to 1000 Ω linear, 2-wire circuit
100 to 138.5 Ω linear, 2-wire circuit (Pt100 standard values, see Data Sheet 906000)
Permissible loading 1.0 W
Electric strength 42 V
Insulation resistance 10 MΩ
Humidity output (active) 0 to 20 mA, 4-wire circuit
 to 20 mA, 2-wire circuit
0 to 10 V, 3-/4-wire circuit

Temperature
 
Sensing element Pt100 temperature sensor to EN 60751
Measuring range Duct version, passive: -40 to +80 °C (take note of permissible ambient temperature)
Duct version, active: -30 to +100 °C (take note of permissible ambient temperature)
Indoor version, passive: 0 to 60 °C
Measuring accuracy ±0.5 °C
Temperature output (passive) Pt100
Measuring current

or
Current/voltage signal
1 mA (recommended)

0 to 20 mA, 4-wire circuit
4 to 20 mA, 2-wire circuit
0 to 10 V, 3-/4-wire circuit

Electrical data for active versions with transmitter
 
Supply voltage 15 to 30 V DC
also 24 V AC ±10 % (for 0 to 10 V output)
Burden 500 Ω max. for current output
Load resistance 10 kΩ min. for voltage output
Power consumption 5 mA per measuring range, 10 mA with AC version
Linearity error <0.5 % for temperature output
Output signals 0 to 20 mA; 4 to 20 mA; 0 to 10 V
Electromagnetic compatibility EN 61326

Construction
 
Housing Duct version: ABS plastic fitted with stainless steel probe
Indoor version: ABS plastic
Cable entry Duct version: via M20 × 1.5 gland
Indoor version: via flush-type box
Terminals For conductor cross-sections up to 0.5 mm²
Protection Duct version: IP64
Indoor version: IP20
Ambient temperature Duct version: -20 to +60 °C on housing, -40 to +80 °C on probe
Indoor version: 0 to 60 °C
Operating position probe tube vertically downwards or horizontal, mounted directly through openings in housing or, optionally, by mounting flange. On indoor version unrestricted, the ventilation slots preferably at right angles to the air flow.
Weight Duct version: approx. 400 g
Indoor version: approx. 200 g


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