LKM S1 Communication Interface
Please note: Orders placed after December 19, 2025, will be processed starting January 5, 2026. Thank you for your understanding.
LKM electronic GmbH wishes all customers a Merry Christmas.
The LKM S1 communication interface can be used to communicate with the majority of our digital measuring devices. This means that the parameters of the respective measuring device can be easily set individually on the Windows PC. It is also possible to retrieve various data and operating statuses from the devices. The software required for this can be downloaded from the store under the relevant devices.
The interface has a USB-C connection and electronics that ensure galvanic isolation of input and output. The devices are connected to the output with the A1, A2 or A3 adapter cable. With the supply voltage of 8 V, which is also galvanically isolated, most measuring devices can also be configured without a separate power supply. Operational readiness is indicated by a blue LED. A device driver must be installed during installation.
Scope of delivery:
| Feature | Specification |
|---|---|
| Input interface | USB |
| Output interface | TTL (TxD/RxD) |
| Galvanic isolation | Functional up to 500 V |
| Auxiliary voltage at the output | 8 V stabilized |
| Power consumption | < 0.3 W |
| Cable length USB | 1 m |
| Cable length adapter | 0.22 m |
| Device driver | FTDI, compatible with Windows x86/x64 |
| Housing material | Aluminium |
| Dimensions | 16 × 55 × 53 mm (H × W × D) |
| Weight without cable | approx. 50 g |
| Ingress protection rating | IP20 according to DIN EN 60529 |
| Adapter | Compatible Devices |
|---|---|
| A1 | LKM136, LKM137 LKM145 LKM154 LKM261, LKM262, LKM263, LKM264 LKM292, LKM294 LKM436, LKM437 LKM455, LKM456. LKM457, LKM458 LKM625, LKM626 |
| A2 | LKM146 LKM400 |
| A3 | DTM3000 series |
| Document | Format | Language(s) |
|---|---|---|
| Datasheet – LKM S1 Technical Specification |
| Program / Package | Format | Language(s) |
|---|---|---|
| Driver (ftdichip.com) USB driver |
Web |
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