SENSVISION HLS 310 D – An Equivalent to the BD Sensors LMP 307i
The BD Sensors LMP 307i is the precision member of the LMP 307 family: a stainless steel submersible hydrostatic level probe with digital sensor electronics, covering nominal ranges to 0 … 200 mH₂O at an accuracy of ±0.1% FSO to IEC 60770, or ±0.2% FSO on the lowest ranges. It offers 2-wire 4 … 20 mA and 3-wire 0 … 10 V outputs with a response time of approximately 200 ms.
The SENSVISION HLS 310 D is a directly equivalent precision probe covering 0 to 4, 10, 20, 40, 100 and 200 mH₂O – nominal pressures of 0.4, 1, 2, 4, 10 and 20 bar gauge – with matching accuracy of up to ±0.1% of span, stated to EN IEC 62828-2, and the same pairing of a 4 to 20 mA two-wire output with an optional 0 to 10 V three-wire version.
Digital electronics are what separate this pair from the standard LMP 307 and HLS 310. Where the standard probe is a fixed-range analogue instrument at ±0.35% of span, the LMP 307i and the HLS 310 D use a digitally compensated sensor to reach ±0.1% – a three-fold improvement – and to hold that figure across temperature. On the HLS 310 D that digital layer is accessible: an RS 232 communication interface accompanies the current output, the span can be turned down as far as 10:1 with no loss of accuracy up to 5:1, electronic damping is adjustable from 0 to 100 seconds and the zero offset over 0 to 90% of span. Response time is 5 ms on the current output and 25 ms on the voltage output, against approximately 200 ms for the LMP 307i.
Mechanically the two are conventional submersible probes. Wetted materials are stainless steel – a 1.4404 (316L) housing with a 1.4435 (316L) diaphragm on the HLS 310 D, with FKM or EPDM seals and a POM protection cap – suiting water, groundwater and lightly polluted fluids. The probe hangs on a suspension cable carrying the integrated tube that references the sensor to atmospheric pressure, available in PVC, PUR, FEP or TPE-U at 7.4 mm diameter, and the 27 mm body is sealed to IP 68 for permanent submersion. Both are offered in an intrinsically safe version; note that the LMP 307i additionally lists a drinking water certificate, which the published HLS 310 D specification does not state, so that approval should be confirmed before specifying it into a certified potable water duty.
Whether you are replacing an installed BD Sensors LMP 307i or specifying a high-accuracy level probe for a new custody, monitoring or process application, the SENSVISION HLS 310 D delivers equivalent measurement performance, materials and configurability as a dependable, cost-effective alternative.
BD SensorsTM and associated part numbers (e.g., LMP 307i) 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 HLS 310 D
The SENSVISION HLS 310 D has been engineered to provide the same fit, form, function and performance as the BD Sensors LMP 307i, making it an ideal replacement for existing installations and new OEM applications.
Key Features:
Precision accuracy up to ±0.1% of span in accordance with EN IEC 62828-2
Nominal level ranges of 0 to 4, 10, 20, 40, 100 and 200 mH₂O
Nominal pressure ranges of 0.4, 1, 2, 4, 10 and 20 bar gauge
4 to 20 mA, two-wire output with an RS 232 communication interface, 12 to 36 VDC supply
Optional 0 to 10 V, three-wire output on 14 to 36 VDC
Span turn-down to 10:1, with no change of accuracy up to 5:1
Adjustable electronic damping 0 to 100 seconds and offset adjustment 0 to 90% of span
Response time 5 ms on the current output, 25 ms on the voltage output
Long-term stability up to ±(0.1 × turn down)% of span per year
Stainless steel 1.4404 (316L) housing with 1.4435 (316L) diaphragm, 27 mm diameter
Seal options in FKM or EPDM, with a POM protection cap
PVC, PUR, FEP or TPE-U cable, 7.4 mm diameter, with integrated atmospheric reference tube
Overpressure resistance 2 to 80 bar; maximum ambient housing pressure 40 bar
Compensated temperature range −20 °C to 70 °C; thermal tolerance band ±(0.2 × turn down)% of span
Permissible medium, electronics and ambient temperature −20 °C to 80 °C, subject to cable selection
IP 68 ingress protection; maximum current consumption 25 mA
Optional intrinsically safe version, 14 to 28 VDC supply
The SENSVISION HLS 310 D is manufactured to deliver equivalent performance, reliability and installation compatibility, offering a cost-effective alternative wherever high-accuracy hydrostatic level measurement is required.