SENSVISION HLC 310 – An Equivalent to the BD Sensors LMK 307
The BD Sensors LMK 307 is a stainless steel submersible level transmitter built around a flush-mounted ceramic sensing element. Suspended in the medium, it measures level hydrostatically from the pressure of the liquid column above the diaphragm, covering nominal ranges from 0 … 4 mH₂O up to 0 … 250 mH₂O at an accuracy of ±0.5% FSO.
The SENSVISION HLC 310 is a directly equivalent submersible transmitter covering the same 4 mH₂O to 250 mH₂O nominal level range at the same ≤ ±0.5% of span accuracy, measured to EN IEC 62828-2. It shares the flush-mounted ceramic measuring principle and the same physical footprint, at approximately 250 g without cable, making it a straightforward replacement in both existing and new installations.
Output options carry across. Both transmitters offer a 4 … 20 mA, 2-wire signal as standard, with 3-wire 0 … 20 mA and 0 … 10 V alternatives where the control system calls for them. On the HLC 310 the 2-wire loop runs from an 8 … 32 VDC supply, with 14 … 30 VDC for the 3-wire outputs.
The certification options match as well. Like the LMK 307, the HLC 310 is available with Ex ia intrinsic safety for gas and dust hazardous areas and with SIL 2 versions to IEC 61508 and IEC 61511 for safety-related level monitoring, in both cases on the 4 … 20 mA 2-wire configuration. The housing is stainless steel 1.4404 (316L) with a ceramic Al₂O₃ 96% diaphragm, FKM or EPDM seals and a POM-C protection cap, sealed to IP 68, with cable sheathing in PVC, PUR or FEP.
Whether you are replacing an installed BD Sensors LMK 307 or specifying a submersible level transmitter for a new drinking water, groundwater, stormwater or wastewater application, the SENSVISION HLC 310 delivers equivalent measurement performance, certification coverage and installation compatibility as a dependable, cost-effective alternative.
BD SensorsTM and associated part numbers (e.g., LMK 307) are trademarks or registered trademarks of BD Sensors GmbH. Diversified Technologies is an independent distributor and is not affiliated with, endorsed by, or sponsored by BD Sensors GmbH. References to BD Sensors and associated part numbers on this website are used strictly for informational, comparative, and cross-referencing purposes to assist customers in finding functional alternatives. All trademarks are the property of their respective owners.
Further Information on the HLC 310
The SENSVISION HLC 310 has been engineered to provide the same fit, form, function and performance as the BD Sensors LMK 307, making it an ideal replacement for existing installations and new OEM applications.
Key Features:
Nominal level ranges from 4 mH₂O up to 250 mH₂O
Flush-mounted ceramic sensor with good linearity and long-term stability
Accuracy of ≤ ±0.5% of span (EN IEC 62828-2)
Standard 4 … 20 mA, 2-wire output signal
Optional 0 … 20 mA and 0 … 10 V 3-wire output signals
Supply voltage 8 … 32 VDC (2-wire), 14 … 30 VDC (3-wire), 10 … 28 VDC (Ex ia)
Optional Ex ia intrinsic safety for gas and dust hazardous areas
Optional SIL 2 versions to IEC 61508 and IEC 61511
Overpressure resistance up to 40 bar and burst pressure up to 50 bar, range dependent
Response time ≤ 10 ms, thermal error ≤ ±0.2% of span per 10 K
Compensated temperature range -25 °C to 70 °C
Permissible temperature range -20 °C to 80 °C for medium, electronics and storage
Stainless steel 1.4404 (316L) housing with ceramic Al₂O₃ 96% diaphragm
Seal options in FKM and EPDM, POM-C protection cap
Cable sheathing available in PVC, PUR and FEP, others on request
IP 68 ingress protection, approximately 250 g without cable
CE conformity, EMC Directive 2014/30/EU and ATEX Directive 2014/34/EU
The SENSVISION HLC 310 is manufactured to deliver equivalent performance, reliability and installation compatibility to the BD Sensors LMK 307, allowing users to transition to the HLC 310 with confidence while maintaining the same standard of hydrostatic level measurement.