Microsensor Corp MDM3051SGP Intelligent Pressure Transmitter

Microsensor Corp MDM3051SGP Intelligent Pressure Transmitter

Microsensor Corp MDM3051SGP Intelligent Pressure Transmitter series gauge pressure transmitter is used for level, density, pressure, and flow measurement of liquid, gas, and steam. Then it will output a 4mA~20mA DC HART signal and also it could be connected to MS-HART375 handing communicator or RSM295 Modem to do the specification setting and process control.

The pressure transmitter includes two functional units:

  1. Main unit
  2. Auxiliary unit

The main unit includes a sensor and process connection, working principle as followed:

Through corrugated, isolated diaphragm and filling oil, process media is pressurized to the diaphragm of the pressure sensor. The other end of the pressure sensor diaphragm is connected to the air (for gauge measurement) or vacuum(for absolute measurement).

In such a way, it makes the resistor of the sensor die change so that the detection system outputs different voltage. The output voltage is in proportion to the pressure variation, and then it is transmitted to standard output by adapter and amplifier.

Microsensor Corp MDM3051SGP Standard Specification

(Standard zero as the reference calibration range, Stainless steel

316L diaphragm, filling liquid is silicone oil).

Performance Specification

Reference Basic error for range calibration(including linearity, hysteresis, and repeatability from zero): ± 0.075%.If TD>10 (TD=Max.Pressure range/calibration range), the Basic error is ±(0.0075×TD)%The Basic error of square root output is 1.5 times of above reference Basic error.

Another Article:

Microsensor Corp MDM3051SGP Environmental Temperature Effect

Range code -20℃ ~65℃ total effect value
B ±(0.30×TD+0.20)%×Span
others ±(0.20×TD+0.10)%×Span
Range code -40℃ ~-20℃ and 65℃ ~85℃ total effect value
B ±(0.30×TD+0.20)%×Span
others ±(0.20×TD+0.10)%×Span

Over pressure effect:±0.075%×Span

Long-term stability

Range code Effect value
B ±0.2%×Span/1 year
others ±0.1%×Span/1 year

Power effect

±0.001% /10V (12V~42V DC), negligible.

Functional Specification

Pressure range and limits

range/limits mbar/bar
B range (6~60)mbar
limits (-60~60)mbar
C range (0.02~0.4)bar
limits (-0.4~0.4)bar
D range (0.025~2.5)bar
limits (-1~2.5)bar
F range (0.3~30)bar
limits (-1~30)bar
G range (1~100)bar
limits (-1~100)bar
H range (2.1~210)bar
limits (-1~210)bar
I range (4~400)bar
limits (-1~400)bar
J range (6~600)bar
limits (-1~600)bar

Pressure range limit

The pressure is adjustable within the upper and lower limit.It is recommended to choose the range code with the lowest pressure range proportion to optimize the performance specification.

Microsensor Corp MDM3051SGPm Zero setting

The zero and pressure range could be adjusted to any value within the measured range in the table, only the calibrated range ≥ Min.The range is valid.

Mounting position effect

The change of mounting position parallel to the diaphragm could not influence the zero drift. If the angle between mounting position and diaphragm is over 90°, the zero drift is <2.5mbar for range C and <1.5mbar for other ranges which could be calibrated by zero settings. No other effect on pressure range.


2- wire, 4mA~20mA DC, HART communication protocol, linearity or square root output optional. Output signal limit: Imin=3.9mA,Imax=20.5mA.

Download Datasheet: MDM3051S-GP, Microsensorcorp-Intelligent Pressure Transmitter

Ref: Microsensorcorp.com