SENSVISION TDP 340 – An Equivalent to the BD Sensors DMD 341
The BD Sensors DMD 341 is a compact differential pressure transmitter for non-aggressive gases and compressed air, built around a piezoresistive silicon sensor and housed in an anodised aluminium body. It covers low differential ranges from 0 … 6 mbar up to 0 … 1000 mbar with accuracy of 0.35% FSO above 160 mbar, 1% FSO between 40 and 160 mbar and 2% FSO below 40 mbar.
The SENSVISION TDP 340 uses the same piezoresistive silicon measuring principle and covers the same low differential band, with ranges from 0.6 mbar up to 1000 mbar and symmetrical ranges of ±6 mbar up to ±1000 mbar. Its accuracy bands match the DMD 341 exactly at ≤ ±0.35% span above 160 mbar, ≤ ±1% span between 40 and 160 mbar and ≤ ±2% span below 40 mbar.
Both units are true differential transmitters with separate high and low pressure ports, intended for measuring the pressure drop across filters, fans and ventilation components rather than absolute line pressure. Because they are designed for clean, non-aggressive gases, the media-wetted parts are aluminium with PUR seals and a silicon sensing element in both cases, and the TDP 340 offers overpressure capability up to 3000 mbar depending on range.
The two transmitters share the same electrical interface options: a 2-wire 4 … 20 mA output on 8 … 32 VDC, plus 3-wire 0 … 20 mA and 0 … 10 V outputs on 14 … 30 VDC. They also match on response time (< 5 ms), long-term stability, vibration resistance of 10 g RMS (20 … 2000 Hz), shock resistance of 100 g / 11 ms and permissible temperatures of -25 °C to 125 °C for the medium and -25 °C to 85 °C for the electronics.
Whether you are replacing an installed BD Sensors DMD 341 or specifying a compact low differential pressure transmitter for a new HVAC, cleanroom or compressed air application, the SENSVISION TDP 340 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 341) 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 340
The SENSVISION TDP 340 has been engineered to provide the same fit, form, function and performance as the BD Sensors DMD 341, making it an ideal replacement for existing installations and new OEM applications.
Key Features:
Differential pressure ranges from 0.6 mbar up to 1000 mbar
Symmetrical differential ranges from ±6 mbar up to ±1000 mbar
Piezoresistive silicon sensor optimised for non-aggressive gases and compressed air
Overpressure capability up to 3000 mbar depending on the range selected
Accuracy of ≤ ±0.35% span above 160 mbar, ≤ ±1% span from 40 to 160 mbar and ≤ ±2% span below 40 mbar
Long-term stability ≤ ±0.2% span per year and response time < 5 ms
Standard 2-wire 4 … 20 mA output, with 3-wire 0 … 20 mA and 0 … 10 V options
Supply voltage 8 … 32 VDC for 4 … 20 mA and 14 … 30 VDC for the 3-wire outputs
Compact anodised aluminium housing for space-restricted installations
G1/8 internal thread or tube pressure connection with PUR seals
Compensated temperature range 0 °C to 60 °C; medium -25 °C to 125 °C; ambient -25 °C to 85 °C
Vibration resistance 10 g RMS (20 … 2000 Hz) and shock resistance 100 g / 11 ms
Permanent short-circuit protection and reverse polarity protection
Operational life greater than 100 million pressure cycles; CE and EMC Directive 2014/30/EU
The SENSVISION TDP 340 is manufactured to deliver equivalent performance, reliability and installation compatibility to the BD Sensors DMD 341, allowing users to transition to the SENSVISION TDP 340 with confidence while maintaining the same low-differential accuracy, output flexibility and mechanical durability.