IFM LMC840
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Quick facts
| Availability | Confirmed on request |
| Category | Use in industrial applications |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
When can LMC840 be shipped?
LMC840 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 LMC840 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 LMC840 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 LMC840, subject to availability and destination.
For the reliable level control in tanks and containers Two programmable switching outputs, one of them with IO-Link communication interface Preset to water and hydrous media Simple process connection via screw-in adapter Reliable suppression of deposits or foam User-friendly communication and parameterisation via IO-Link
Specifications
Product characteristics
| Number of inputs and outputs | Number of digital outputs: 2 |
| Factory setting | water; hydrous media |
| Process connection | M12 x 1,5 external thread ISO 6149-3 |
Application
| Special feature | Gold-plated contacts |
| Media | water; hydrous media; oils; oil-based media; coolants; powder |
| Cannot be used for | See the operating instructions, chapter "Function and features". |
| Medium temperature[°C] [°C] | -25...100 |
| Pressure rating | 40 bar; 4 MPa |
| 40 bar | 4 MPa |
| Vacuum resistance | -1000 mbar; -0.1 MPa |
| -1000 mbar | -0.1 MPa |
| Probe length[mm] [mm] | 22.6 |
| MAWP for applications according to CRN[bar] [bar] | 40 |
Electrical data
| Operating voltage[V] [V] | 10.8...30 DC; (IO-Link: 18...30 DC) ; (see interruptions in the supply voltage under remarks) |
| Current consumption[mA] [mA] | < 35 |
| Protection class | III |
| Reverse polarity protection | yes |
Inputs / outputs
| Number of inputs and outputs | Number of digital outputs: 2 |
Outputs
| Total number of outputs | 2 |
| Output signal | switching signal; IO-Link |
| Electrical design | NPN/PNP |
| Number of digital outputs | 2 |
| Output function | normally open / normally closed; (parameterisable) |
| Max. voltage drop switching output DC[V] [V] | 2.5 |
| Permanent current rating of switching output DC[mA] [mA] | 50; (100 (...60 °C)) |
| Factory setting | Electrical design NPN schaltend |
| Short-circuit protection | yes |
| Type of short-circuit protection | thermal, pulsed |
| Overload protection | yes |
Measuring/setting range
| Factory setting | water; hydrous media |
Response times
| Response time[s] [s] | < 0.5 |
Interfaces
| Communication interface | IO-Link |
| IO-Link revision | 1.1 |
| SDCI standard | IEC 61131-9 |
| SIO mode | no |
| Required master port type | A |
| Supported DeviceIDs | default; 1960 |
| default | 1960 |
Operating conditions
| Ambient temperature[°C] [°C] | -25...85 |
| Storage temperature[°C] [°C] | -40...85 |
| Protection | IP 68; IP 69; (7 days / 3 m water depth / 0.3 bar: IP 68) |
Tests / approvals
| EMC | DIN EN 61000-6-2; DIN EN 61000-6-3; : in a closed metal tank; DIN EN 61000-6-4; : in plastic or open metal tanks |
| DIN EN 61000-6-3 | : in a closed metal tank |
| DIN EN 61000-6-4 | : in plastic or open metal tanks |
| Shock resistance | DIN EN 60068-2-27; 50 g (11 ms) |
| DIN EN 60068-2-27 | 50 g (11 ms) |
| Vibration resistance | DIN EN 60068-2-6; 20 g (10...2000 Hz) |
| DIN EN 60068-2-6 | 20 g (10...2000 Hz) |
| MTTF[years] [years] | 528 |
| UL approval | Ta; -25...50 °C; Enclosure type; Type 1; UL approval no.; H003; File number UL; E174191 |
| Ta | -25...50 °C |
| Enclosure type | Type 1 |
| UL approval no. | H003 |
| File number UL | E174191 |
Mechanical data
| Weight[g] [g] | 83 |
| Dimensions[mm] [mm] | Ø 18.1 / L = 76.2 |
| Materials | housing: stainless steel (316L/1.4404); probe: PEEK; plug: PEI; Sealing: FKM; EPDM |
| Materials (wetted parts) | housing: stainless steel (316L/1.4404); probe: PEEK; Sealing: EPDM |
| Process connection | M12 x 1,5 external thread ISO 6149-3 |
Displays / operating elements
| Display | switching status; LED, yellow; operating status; LED, green |
| switching status | LED, yellow |
| operating status | LED, green |
Remarks
| Remarks | supply voltage interruption - At supply voltages below 18 V, interruptions in the supply voltage of less than 1 ms can cause the device to reset |
| Pack quantity | 1 pcs. |
Electrical connection
| Connector | 1 x M12; coding: A; Contacts: gold-plated |









