Danfoss MBS 3200, MBS 3250 Data sheet

Data Sheet

Pressure transmitters Type MBS 3200 and MBS 3250

For heavy duty applications

The compact high temperature pressure transmitter MBS 3200 is designed for use in hydraulic and almost all industrial applications, and oers a reliable pressure measurement, even under harsh environmental conditions.

MBS 3250 with integrated pulse-snubber is designed for use in hydraulic applications with severe medium inuences like cavitation, liquid hammer or pressure peaks and oers a reliable pressure measurement, even under harsh environmental conditions.

The exible pressure transmitter programme covers dierent output signals, absolute or gauge (relative) versions, measuring ranges from 0 – 1 to 0 – 600 bar and a wide range of pressure and electrical connections.

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

AI308940989199en-000203

Pulse-snubber

Pressure transmitters, type MBS 3200 and MBS 3250

Features

• Designed for use in harsh industrial and hydraulic environments

• For media and ambient temperatures up to 125 °C

• With integrated pulse-snubber. Protected against cavitation, liquid hammering and pressure peaks (MBS 3250)

• All standard output signals: 4 – 20 mA, 0 – 5 V, 1 – 5 V, 1 – 6 V, 0 – 10 V, 1 – 10 V and ratiometric output signal: 10-90% of supply voltage

• Enclosure and wetted parts of AISI 316L

• A wide range of pressure and electrical connections

• Fully digitally compensated

• For use in Zone 2 explosive atmospheres

• UL approved

Applications

Applications (MBS 3250)

Cavitation, liquid hammer and pressure peaks may occur in hydraulic systems with changes in ow velocity, e.g. fast closing of a valve or pump starts and stops.

The problem may occur on the inlet and outlet side, even at rather low operating pressures.

Media conditions (MBS 3250)

Clogging of the nozzle may occur in liquids containing particles. Mounting the transmitter in an upright position minimizes the risk of clogging, because the ow in the nozzle is limited to the start-up period until the dead volume behind the nozzle orice is lled.

The media viscosity has only little eect on the response time. Even at a viscosities up to 100 cSt, the response time will not exceed 4 ms.

Accuracy (incl. non-linearity, hysteresis and repeatability) ≤ ± 0.5% FS (typ.)

≤ ± 1.0% FS (max.)

Non-linearity BFSL (conformity)

≤ ± 0.2% FS

Hysteresis and repeatability

≤ ± 0.1% FS

Thermal error band (compensated temperature range)

≤ ± 1.0% FS

Response time Liquids with viscosity < 100 cSt

< 4 ms

Air and gases (MBS 3250)

< 35 ms

Overload pressure (static)

6 × FS (max. 1500 bar)

Burst pressure

6 × FS (max. 2000 bar)

Power-up time

< 50 ms

Durability, P: 10 – 90% FS

> 10 × 106 cycles

Nom. output signal (short-circuit protected)

4 – 20 mA

0 – 5 V, 1 – 5 V, 1– 6 V DC

0 – 10 V, 1 – 10 V DC

10 – 90% of supply voltage

Supply voltage [UB], polarity protected

9 – 32 V DC

15 – 32 V DC

4.5 – 5.5 V DC

Supply – current consumption

–

≤ 5 mA

≤ 8 mA

≤ 5 mA at 5 V DC

Supply voltage dependency

< 0.1% FS / 10 V

< 0.05% FS / 10 V

–

Ratiometricity

–

< 0.05% FS / 4.5 - 5.5 V

Output limitation

22.4 mA

0-5 V: 5.75 V, 1-5 V: 5.6 V,

1-6 V: 6.75 V

0-10 V: 11.5 V

≈ supply voltage

Sink / Source

–

< 1 mA

Load [RL] (load connected to 0 V)

RL ≤ (UB- 9 V) / 0.02 A

RL ≥ 10 kΩ

RL ≥ 15 kΩ

RL ≥ 10 kΩ at 5 V DC

Sensor operating temperature (depending on gasket material)

4 – 20 mA

-40 – 100 °C

10 – 90% of supply voltage 0 – 5 V, 1 – 5 V, 1 – 6 V, 0 – 10 V

-40 – 125 °C Media temperature range

-40 – 125 °C

Ambient temperature range (depending on electrical connection)

See Electrical connections

Compensated temperature range

0 – 100 °C

Transport/storage temperature range

-50 – 125 °C

EMC – Emission

EN 61000-6-3

EMC – Immunity

EN 61000-6-2

Insulation resistance

> 100 mΩ at 500 V DC

Mains frequency test

Based on SEN 361503

Vibration stability Sinusoidal

15.9 mm-pp, 5 Hz – 25 Hz

IEC 60068-2-6 20 g, 25 Hz – 2 kHz

Random

7.5 g

rms

, 5 Hz – 1 kHz

IEC 60068-2-64

Shock resistance Shock

500 g / 1 ms

IEC 60068-2-27

Free fall

1 m

IEC 60068-2-32

Enclosure (depending on electrical connection)

See Electrical connections

Zone 2 applications

(1)

EN60079-0; EN60079-7

Pressure transmitters, type MBS 3200 and MBS 3250

Product specication

Technical data

Table 1: Performance (EN 60770)

Table 2: Electrical specications

Table 3: Environmental conditions

Table 4: Explosive atmospheres

(1)

When used in ATEX Zone 2 areas at low temperatures the cable and plug must be protected against impact.

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