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IFM LDH292 air humidity sensor


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SKU: LDH292 Categories: , , Tag:


  • Simple monitoring of temperature and air humidity to protect electrical installations, control cabinets or production processes
  • Plug & Play thanks to screw or rail mountin
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Product characteristics
Number of inputs and outputs Number of digital outputs: 1
Special feature Gold-plated contacts
Electrical data
Operating voltage [V] 18…30 DC
Current consumption [mA] 13
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 digital outputs: 1
Total number of outputs 1
Output signal IO-Link
Number of digital outputs 1
Measuring/setting range
Measuring range [% RH] 0…100
Temperature measurement
Measuring range [°C] -40…80
Accuracy / deviations
Accuracy [% RH] 3; (in the range 20…80 % RH)
Resolution [% RH] 0,1
Temperature measurement
Accuracy [K] ± 0,3
Resolution [K] 0.1
Response times
Response time [s] < 30; (T90)
Temperature measurement
Response time [s] < 300; (T90)
Communication interface IO-Link
Transmission type COM2 (38,4 kBaud)
IO-Link revision 1.1
Profiles Identification and Diagnosis (0x4000), Measurement Data Channel (0x800A)
SIO mode no
Required master port type A
Min. process cycle time [ms] 4.5
Supported DeviceIDs
Type of operation DeviceID
Default 1337
Operating conditions
Ambient temperature [°C] -40…80
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
DIN EN 61000-6-2
DIN EN 61000-6-4
MTTF [years] 195
UL approval
File number UL E224228
Mechanical data
Weight [g] 70
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
Pack quantity 1 pcs.
Electrical connection
Connection Connector: 1 x M12 (EN 61067-2-101); coding: A; Contacts: gold-plated

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