MBS 4201/MBS 4251/MBS 4701/MBS 4751 Intrinsically Safe Pressure Transmitter

Brand: Danfoss

The intrinsically safe pressure transmitter program is designed for use in hazardous environments and offers a reliable pressure measurement, even in harsh applications with severe medium influences like cavitation, liquid hammer or pressure peaks. 

The MBS 4201 and MBS 4251 are Ex ia IIC T6 to T4 explosion protected according to the ATEX directive 94/9/EC whereas the MBS 4701 and MBS 4751 are Ex ia IIC T4 explosion protected. 

Both series come with 4-20 mA output signal, absolute or gauge (relative) versions, measuring ranges from 0-1 to 0-600 bar, zero point and span adjustment, plug connection and a wide range of pressure connections. 

Excellent vibration stability, robust construction, and a high degree of EMC/EMI protection equip the pressure transmitter to meet the most stringent industrial requirements.

Specifications

Brand

Accuracy

  • ± 0.5 % of Full Scale Includes Non-Linearity, Hysteresis & Repeatability - for Model 4701 & 4751
  • ± 1 % of Full Scale Includes Non-Linearity, Hysteresis & Repeatability - for Model 4201 & 4251
  • Thermal Error: ≤ ± 1 % of Full Scale

Ambient Temperature Range

  • -40° to 100° C (-40° to 212° F)

Applications

  • Harsh Applications with Severe Medium Influences Like Cavitation, Liquid Hammer or Pressure Peaks

Approvals & Certifications

  • EMC - (EN 61000-6-3 for Emission) & (EN 61000-6-2 for Immunity)
  • ABS
  • ATEX Directive 94/9/EC, Ex ia IIC T6 to T4 (MBS 42xx Series), Ex ia IIC T4 (MBS 47xx Series)
  • BV - for Model 4201 & 4251
  • CE
  • DNV - for Model 4201 & 4251
  • LRS - for Model 4201 & 4251

BSP Connection

  • G 1/2” Male A (EN 837)
  • G 1/4” Male

Burst Pressure

  • 6 x Full Scale, Max.

Cable Length

  • 6.56 feet (2 metres)

Cable Material

  • PVC

Capacity

  • < 50 NF - Internal Capacity

Compensated Temperature

  • 0° to 100° C (32° to 212° F)

Current

  • 100 mA - Max.
  • 30-35 mA - Current Limitation

Electrical Connectors

  • Bayonet Connector
  • DIN 3852
  • DIN 3869-14
  • PG9

Enclosure, Body Material

  • 316L Stainless Steel - EN 10088-1

Environmental Protection

  • IP65
  • IP67
  • IP69K

Gasket Material

  • NBR

Hysteresis

  • ≤ ± 0.1 % of Full Scale

Input Power

  • 0.7 W, Max.

Insulation Resistance

  • > 100 megaohms at 100 V

Metric Connection

  • M14 x 1.5 Male

Non-Linearity

  • ≤ ± 0.2 % of Full Scale - BFSL (Conformity)

NPT Connection

  • 1/2” NPT Male
  • 1/4” NPT Male

O-Ring Material

  • NBR

Output

  • Nominal Output Signal (Short Curcuit Protected): 4-20 mA, 2-Wire

Overpressure & Static Pressure Limits

  • 6 x Full Scale, Max.

Plug Material

  • Glass-Filled Polyamid, PA 6.6
  • Glass-Filled Polyester, PBT

Power Supply

  • 28 Vdc

Pressure Range

  • bar: 0 to 600
  • kPa: 0 to 60,000
  • psi: 0 to 8,702

Pressure Type

  • Absolute
  • Gauge

Process Temperature

  • -40° to 125° C (-40° to 257° F) - Medium Temperature

Repeatability

  • ≤ ± 0.1 % of Full Scale

Response Time

  • < 35 milliseconds - for Model 4251 & 4751
  • < 4 milliseconds

RFI/EMI Protection

  • Conducted: 10 Vrms, 150 kHz to 30 MHz
  • Field: 10 V/m, 26 MHz to 1 GHz

Shock

  • 1 metre Free Fall as Per IEC 60068-2-32
  • 500 G, 1 millisecond as Per IEC 60068-2-27

Span & Zero Adjustments

  • -2.5 to 2.5 % of Full Scale - Zero Point Adjustment
  • -5 to 10 % of Full Scale - Zero Point Adjustment
  • -5 to 20 % of Full Scale - Zero Point Adjustment
  • -5 to 5 % of Full Scale - Span Adjustment

Supply Voltage

  • Polarity Protected: 10-28 Vdc
  • Supply Voltage Dependency: ≤ ± 0.05 % of Full Scale/10 V

Temperature Range

  • -30° to 80° C (-22° to 176° F) - Cable Version Transport Temperature
  • -50° to 100° C (-58° to 212° F) - Plug Version Transport Temperature

Torque

  • 30 to 35 Nm (265 to 310 In/Lbs)

Vibration

  • Random Vibration: 7.5 G RMS, 5 to 1,000 Hz as Per IEC 60068-2-64
  • Sinusoidal Vibration: 20 G, 25 to 2,000 Hz as Per IEC 60068-2-6

Wetted Materials

  • 316L Stainless Steel - EN 10088-1

  • Harsh Applications with Severe Medium Influences Like Cavitation, Liquid Hammer or Pressure Peaks
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