IFM LDH290
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Quick facts
| Availability | Confirmed on request |
| Category | Moisture measurement in air |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
When can LDH290 be shipped?
LDH290 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up LDH290 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for LDH290 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for LDH290, subject to availability and destination.
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
Specifications
Product characteristics
| Number of inputs and outputs | Number of analogue outputs: 2 |
Application
| Special feature | Gold-plated contacts |
Electrical data
| Operating voltage[V] [V] | 12...30 DC |
| Protection class | III |
| Reverse polarity protection | yes |
| Power-on delay time[s] [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] [mA] | 4...20 |
| Max. load[Ω] [Ω] | (Ub - 12 V) / 20 mA |
Measuring/setting range
| Measuring range[% RH] [% RH] | 0...100 |
| Measuring range[°C] [°C] | -40...60 |
Accuracy / deviations
| Accuracy[% RH] [% RH] | 4; (in the range 20...80 % RH) |
| Resolution[% RH] [% RH] | 0,1 |
| Accuracy[K] [K] | ± 1 |
| Resolution[K] [K] | 0.1 |
Response times
| Response time[s] [s] | < 300; (T90) |
Operating conditions
| Ambient temperature[°C] [°C] | -40...70 |
| Note on ambient temperature | application humidity: ≤ 90 % RH; non condensing |
| Storage temperature[°C] [°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 61000-6-4 |
| MTTF[years] [years] | 178 |
| UL approval | File number UL; E224228 |
| File number UL | E224228 |
Mechanical data
| Weight[g] [g] | 72.3 |
| Type of mounting | mounting on DIN rail and panel; (TH35 (EN 60715) / M5) |
| Dimensions[mm] [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
| Connector | 1 x M12 (EN 61067-2-101); coding: A; Contacts: gold-plated |
