Danfoss MBS 3300, MBS 3350 Data sheet

Data Sheet

Pressure transmitter

Type MBS 3300 and MBS 3350

For high temperature marine applications

The compact high temperature pressure transmitter is designed for use in almost all marine applications, and offers a reliable pressure measurement, even under harsh environmental conditions.

The flexible pressure transmitter programme covers different 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 exellent vibration stability, and a high degree of EMC / EMI protection equip the pressure transmitter to meet the most stringent marine requirements.

Features

• Designed for use in severe maritime environments

• For medium and ambient temperatures up to 125 °C

• All standard output signals:

◦ Ratiometric 10 - 90% of supply ◦ 4 – 20 mA

◦ 0 – 5 V, 1 – 5 V, 1 – 6 V, 0 – 10 V

• Enclosure and wetted parts of AISI 316L

• A wide range of pressure and electrical connections

• Fully digitally compensated

• For use in ATEX Zone 2 explosive atmospheres

• UL approved

AI308943247202en-000302

Pressure transmitter, type MBS 3300 and MBS 3350

Applications

Application and media conditions (MBS 3350)

1
1	Pulse-snubber

Application

Cavitation, liquid hammer and pressure peaks may occur in liquid …lled hydraulic systems with changes in flow 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 condition

Clogging of the nozzle may occur in liquids containing particles. Mounting the transmitter in an upright position minimizes the risk of clogging, because the flow in the nozzle is limited to the startup period until the dead volume behind the nozzle ori…ce is …lled.

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

© Danfoss | Climate Solutions | 2021.06

AI308943247202en-000302 | 2

Pressure transmitter, type MBS 3300 and MBS 3350

Product speci€cation

Technical data

Table 1: Performance (EN 60770)

	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 3350)	< 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

Table 2: Electrical speci€cations

Nom. output signal (short-circuit protected)	4 – 20 mA	0 – 5 V, 1 – 5 V,	0 – 10 V	10 – 90% of supply voltage
		1– 6 V
Supply voltage [UB], polarity protected	9 – 32 V DC	9 – 32 V DC	15 – 32 V DC	4.5 – 5.5 V DC
	(12 / 24 V DC nom.)	(12 / 24 V DC nom.)	(12 / 24 V DC nom.)	(5 V DC nom.)
Supply – current consumption	–	≤ 5 mA	≤ 8 mA	≤ 5 mA - 5 V
Supply voltage dependency	< 0.1% FS / 10 V	< 0.05% FS / 10 V		–
Ratiometricity	–		–	< 0.05% FS / 4.5 - 5.5 V
		0-5 V: 5.75 V
Output limitation	22.4 mA	1-5 V: 5.6 V	0-10 V: 11.5 V	≈ supply voltage
		1-6 V: 6.75 V
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

Table 3: Environmental conditions

Sensor operating temperature (depending on gasket	4 – 20 mA			-40 – 100 °C
	10 – 90% of supply voltage			-40 – 125 °C
material)	0 – 5 V, 1 – 5 V, 1 – 6 V, 0 – 10 V
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
	Sinusoidal	15.9 mm-pp, 5 Hz – 25 Hz		IEC 60068-2-6
Vibration stability		20 g, 25 Hz – 2 kHz
	Random	7.5 grms , 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
Table 4: Explosive atmospheres
Zone 2 applications(1)			EN60079-0; EN60079-7

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

© Danfoss | Climate Solutions | 2021.06

AI308943247202en-000302 | 3