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  1. Products
  2. Sensors
  3. Analytical sensors
  4. Moisture measurement in air
  5. LDH290

air humidity sensor

LDH290

AIR HUMIDITY SENSOR ANALOG

air humidity sensor LDH290
air humidity sensor LDH290

air humidity sensor

LDH290

AIR HUMIDITY SENSOR ANALOG

  • Simple monitoring of temperature and air humidity to protect electrical installations, control cabinets or production processes
  • Plug & Play thanks to screw or rail mounting and M12 connection
  • Data output per analogue signal
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  • cruus
Product characteristics
Number of inputs and outputs Number of analogue outputs: 2
Application
Special feature Gold-plated contacts
Electrical data
Operating voltage [V] 12...30 DC
Protection class III
Reverse polarity protection yes
Power-on delay time [s] < 1
Measuring principle capacitive
Inputs / outputs
Number of inputs and outputs Number of analogue outputs: 2
Outputs
Total number of outputs 2
Output signal analogue signal
Number of analogue outputs 2
Analogue current output [mA] 4...20
Max. load [Ω] (Ub - 12 V) / 20 mA
Measuring/setting range
Measuring range [% RH] 0...100
Temperature measurement
Measuring range [°C] -40...60
Accuracy / deviations
Accuracy [% RH] 4; (in the range 20...80 % RH)
Resolution [% RH] 0,1
Temperature measurement
Accuracy [K] ± 1
Resolution [K] 0.1
Response times
Response time [s] < 30; (T90)
Temperature measurement
Response time [s] < 300; (T90)
Operating conditions
Ambient temperature [°C] -40...70
Note on ambient temperature
application humidity: ≤ 90 % RH
non condensing
Storage temperature [°C] -40...85
Note on storage temperature
storage humidity: ≤ 90 % RH
non condensing
Protection IP 20; (only sensor: IP 57)
Tests / approvals
EMC
DIN EN 61000-6-2
DIN EN 61000-6-3
MTTF [years] 178
UL approval
File number UL E224228
Mechanical data
Weight [g] 72.3
Type of mounting DIN rail clip for 35 mm DIN rail (EN 60715); screw mounting; (M5)
Dimensions [mm] 140 x 40 x 38
Materials plastics UL94 V-0; light grey
Installation position vertical; connector facing upwards
Remarks
Pack quantity 1 pcs.
Electrical connection
Connection Connector: 1 x M12 (EN 61067-2-101); coding: A; Contacts: gold-plated
ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — LDH290-00 — 13.04.2023 —