SENSVISION TDP 310 – An Equivalent to the BD Sensors DMD 331
The BD Sensors DMD 331 is a compact differential pressure transmitter for liquids and gases, built around a piezoresistive stainless steel sensor that can be pressurised on both sides (wet/wet). It covers differential ranges from 0 … 20 mbar up to 0 … 16 bar and tolerates one-sided static pressure of up to 30 times the selected differential range.
The SENSVISION TDP 310 uses the same piezoresistive stainless steel measuring principle and covers the same differential span of 0 … 20 mbar up to 0 … 16 bar, with nominal pressure options of 0.2, 0.4, 1, 2.5, 6 and 16 bar. Both pressure ports can be loaded with media compatible with stainless steel 1.4404 and 1.4435, making it a direct functional alternative to the BD Sensors DMD 331.
Like the DMD 331, the TDP 310 is built for true wet/wet differential measurement across filters, pumps, valves and flow restrictions, where the positive and negative ports see very different line pressures. Its permissible one-sided static pressure of 0.5, 1, 3, 6, 20 or 60 bar, depending on the nominal range selected, allows it to operate where static line pressure is far higher than the differential being measured.
Both transmitters offer the same signal options for control systems: a standard 2-wire 4 … 20 mA output and an optional 3-wire 0 … 10 V output, with an intrinsically safe Ex ia version available for hazardous areas. The TDP 310 matches the DMD 331 on accuracy (≤ ±0.5% span up to 5:1 turn down, ≤ ±1% span above), response time (< 5 ms), IP 65 ingress protection, and mechanical robustness of 10 g RMS vibration and 100 g / 11 ms shock.
Whether you are replacing an installed BD Sensors DMD 331 or specifying a compact differential pressure transmitter for a new machine or skid, the SENSVISION TDP 310 provides the same fit, form and function in a more cost-effective package, backed by expert application support from Diversified Technologies.
BD SensorsTM and associated part numbers (e.g., DMD 331) 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 TDP 310
The SENSVISION TDP 310 has been engineered to provide the same fit, form, function and performance as the BD Sensors DMD 331, making it an ideal replacement for existing installations and new OEM applications.
Key Features:
Differential pressure ranges from 0 … 20 mbar up to 0 … 16 bar
Nominal pressure options of 0.2, 0.4, 1, 2.5, 6 and 16 bar
Piezoresistive stainless steel sensor, pressurisable on both sides for wet/wet measurement
Permissible one-sided static pressure of 0.5, 1, 3, 6, 20 or 60 bar depending on nominal range
Turn down capability up to 10:1
Accuracy of ≤ ±0.5% span up to 5:1 turn down and ≤ ±1% span above
Long-term stability ≤ ±0.2% span per year and response time < 5 ms
Standard 2-wire 4 … 20 mA output with optional 3-wire 0 … 10 V output
Supply voltage 12 … 36 VDC, or 14 … 28 VDC for the intrinsically safe version
Wetted parts in stainless steel 1.4404 (316L) with a 1.4435 (316L) diaphragm and FKM seals
Black anodised aluminium housing with IP 65 ingress protection
Medium temperature -25 °C to 125 °C and ambient temperature -25 °C to 85 °C
Vibration resistance 10 g RMS (20 … 2000 Hz) and shock resistance 100 g / 11 ms
Optional intrinsically safe Ex ia version for gases and dusts under ATEX 2014/34/EU
The SENSVISION TDP 310 is manufactured to deliver equivalent performance, reliability and installation compatibility to the BD Sensors DMD 331, allowing users to transition to the SENSVISION TDP 310 with confidence while maintaining the same differential measurement accuracy, static pressure tolerance and mechanical durability.