Danfoss MBS 4201, MBS 4251, MBS 4701, MBS 4751 Data sheet

Data sheet
Intrinsically safe pressure transmitter MBS 4201, MBS 4251, MBS 4701 and MBS 4751
The intrinsically safe pressure transmitter program is designed for use in hazardous environments and oers a reliable pressure measurement, even in harsh applications with severe medium inuences like cavitation, liquid hammer or pressure peaks.
The MBS 4201 and MBS 4251 are Ex ia IIC T6...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.
Features y In compliance with ATEX directive 94/9/EC:
- Ex ia IIC T6...T4 (MBS 42xx series)
- Ex ia IIC T4 (MBS 47xx series)
y Applicable in potentially explosive
atmosphere: Zone 0, Zone 1, Zone 2 (gases and vapour)
y Enslosure and wetted parts of acid-resistant
stainless steel (AISI 316L)
y Pressure ranges in relative (gauge) or absolute
from 0 up to 600 bar
y Output signal: 4 – 20 mA
Approvals
MBS 4201 and MBS 4251:
y Bureau Veritas, BV y Det Norske Veritas, DNV
y Marine approved y A wide range of pressure connections y Temperature compensated and laser calibrated y MBS 4251 and MBS 4751 with integrated pulse
snubber for protection against cavitation and liquid hammering
y MBS 4701 and MBS 4751 zero and span
adjustment
y Lloyds Register of Shipping, LR y American Bureau of Shipping ABS
(Expired September 2020)
AI244686442908en-000301 | 1© Danfoss | DCS (im) | 2020.10
Data sheet | Intrinsically safe pressure transmitter, MBS 4201, MBS 4251, MBS 4701 and MBS 4751
Application and media conditions for MBS 4251 and MBS 4751
Pulse-snubber
Ordering standard versions MBS 4701
Plug: Pg 9 (EN 175301-803-A) Output: 4 – 20 mA Pressure connection: G ½ A (EN 837)
Application
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 condition
Clogging of the nozzle may occour in liquids containing particles. Mounting the transmitter in an upright position minimizes the risk of clogging, because the ow in the nozzle is restricted to the start-up period when the dead volume behind the nozzle orice is relatively big (0.3 mm). 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.
Type no.
MBS 4701-1011-A1AB08 0 – 1 060G4303
MBS 4701-1211-A1AB08 0 – 1.6 060G4300
MBS 4701-1411-A1AB08 0 – 2.5 060G4304
MBS 4701-1611-A1AB08 0 – 4 060G4305
MBS 4701-1811-A1AB08 0 – 6 060G4306
MBS 4701-2011-A1AB08 0 – 10 060G4307
MBS 4701-2211-A1AB08 0 – 16 060G4301
MBS 4701-2411-A1AB08 0 – 25 060G4308
MBS 4701-2611-A1AB08 0 – 40 060G4309
MBS 4701-2811-A1AB08 0 – 60 060G4302
Measuring range
Pe 1) [bar]
Code number
MBS 4751 with pulse snubber
Type no.
MBS 4751-3211-A1AB08 0 – 160 060G4311
MBS 4751-3411-A1AB08 0 – 250 060G4312
MBS 4751-3611-A1AB08 0 – 400 060G4313
MBS 4751-3811-A1AB08 0 – 600 060G4314
1
) Relative / gauge
Measuring range
Pe 1) [bar]
Code number
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Data sheet | Intrinsically safe pressure transmitter, MBS 4201, MBS 4251, MBS 4701 and MBS 4751
Technical data
Performance (EN 60770)
Standard version
MBS type
MBS 4201 MBS 4251 MBS 4701 MBS 4751
with pulse
snubber
Accuracy (incl. non-linearity, hysteresis and repeatability) ± 1% FS ± 1% FS ± 0.5% FS ± 0.5% FS
Non-linearity BFSL (conformity) ≤ ± 0.2% FS
Hysteresis and repeatability ≤ ± 0.1% FS
Thermal error band (compensated temperature range) ≤ ± 1% FS
Response time
Liquids with viscosity < 100 cSt < 4 ms < 4 ms < 4 ms < 4 ms
Air and gases < 4 ms < 35 ms < 4 ms < 35 ms
Overload pressure (static) 6 × FS (max. 1500 bar)
Burst pressure > 6 × FS (max. 2000 bar)
Durability, P: 10 – 90% FS > 3 × 106 cycles
0 – 1 to 0 – 10 bar mearsuring range -5 – 20 % FS
Zero point adjustment
0 – 16 to 0 – 40 bar measuring range -5 – 10% FS
0 – 60 to 0 – 600 bar measuring range -2.5 – 2.5% FS
Span adjustment 0 – 1 to 0 – 600 bar measuring range -5 – 5% FS
With zero point and
span adjustment
with pulse
snubber
Electrical specications
Nom. output signal (short curcuit protected) 4 – 20 mA
Supply voltage, UB (polarity protected) 10 – 28 V DC
Supply voltage dependency ≤ ± 0.05% FS / 10 V
Current limitation (linear output signal up to 1.5 × rated range) 30 – 35 mA
UB - 10 V
Load [RL] (load connected to 0 V)
RL ≤
0.02 A
[Ω]
Environmental conditions
Sensor temperature range See page 6
Media temperature range
Ambient temperature range (depending on electrical connection) See page 6
Compensated temperature range 0 – 100 °C
Transport temperature range Plug version / cable version -50 – 100 °C / -30 – 80 °C
EMC - Emission EN 61000-6-3
Air mode 8 kV EN 61000-6-2
Contact mode 4 kV EN 61000-6-2
Field 10 V/m, 26 MHz – 1 GHz EN 61000-6-2
Conducted 10 V
, 150 kHz – 30 MHz EN 61000-6-2 1)
rms
Burst 4 kV (CM), Clamp EN 61000-6-2
Surge 1 kV (CM, DM) Rg = 42 Ω EN 61000-6-2
EMC Immunity
Electrostatic discharge
RF
Transient
Insulation resistance > 100 MΩ at 100 V
Vibration stability
Shock resistance
Sinusoidal 20 g, 25 Hz – 2 kHz IEC 60068-2-6
Random 7.5 g
, 5 Hz – 1 kHz IEC 60068-2-64
rms
Shock 500 g / 1ms IEC 60068-2-27
Free fall 1 m IEC 60068-2-32
Enclosure (depending on electrical connection) See page 6
1
) In the frequency range of 150 kHz – 3 MHz the error is > 1% FS
115 - (0.35 x ambient temp.)
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Data sheet | Intrinsically safe pressure transmitter, MBS 4201, MBS 4251, MBS 4701 and MBS 4751
Technical data
(continued)
Mechanical characteristics
Materials
Net weight (depending on pressure connection) 0.2 – 0.3 kg
Wetted parts EN 10088-1; 1.4404 (AISI 316 L)
Enclosure EN 10088-1; 1.4404 (AISI 316 L)
Ordering special versions
Non-standard build-up combinations may be selected. However, minimum order quantities may apply.
Please contact your local Danfoss oce for further information.
MBS 4201 MBS 4251 MBS 4701 MBS 4751
Measuring range Pressure connection
0 – 1.0 bar 0 – 1.6 bar 0 – 2.5 bar 0 – 4.0 bar 0 – 6.0 bar 0 – 10 bar 0 – 16 bar 0 – 25 bar 0 – 40 bar 0 – 60 bar 0 – 100 bar 0 – 160 bar 0 – 250 bar 0 – 400 bar 0 – 600 bar
Pressure reference
Gauge (relative) Absolute
1
) MBS 4201 and MBS 4251 only
1 0 A B 0 8 1 2 A C 0 4 ¼ – 18 NPT 1 4 A C 0 8 ½ – 18 NPT 1 6 G B 0 4 DIN 3852-E-G ¼; Gasket: DIN 3869-14 NBR 1 8 F A 0 8 ISO 6149-2, M14 × 1.5 – 6 g, O-ring NBR 2 0 2 2 2 4 2 6 A1 2 8 A3 3 0 C8 3 2 3 4 3 6 3 8 1
1 –
Electrical connection
Figures refer to plug and standard PIN conguration - see page 6
Plug Pg 9 (EN175301-803-A) Screened cable, 2 m 1) ISO 15170-A1-3.2-Sn, male 1)(Bayonet plug)
Output signal
4 – 20 mA
1 2
Gasket material
0
No gasket
1
Gasket, Viton -20 – 125°C
G ½ A (EN 837)
Prefered version
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Data sheet | Intrinsically safe pressure transmitter, MBS 4201, MBS 4251, MBS 4701 and MBS 4751
3
4
39.5
34
39.5
Dimensions/Combinations
Type code A1 A3 C8 A1
EN175301-803-A,
Pg 9
Non adjustable versions
MBS 4201, MBS 4251
2 m cable
ISO 15170-A1-3.2-Sn
(Bajonet plug)
Adjustable versions
MBS 4701, MBS 4751
EN175301-803-A,
Pg 9
DIN 3852-E-G ¼
Gasket:
DIN 3869-14-NBR
G ½ A
(EN 837)
¼ – 18 NPT ½ – 14 NPT
ISO 6149-2
M14 x 1.5 - 6g
Incl. O-ring NBR
Type code GB04 AB08 AC04 AC08 FA08
Recommended torque 1)
1
) Depends of dierent parameters such as gasket material, mating material, thread lubrication and pressure level
30 – 35 Nm 30 – 35 Nm
2 – 3 turns after nger
tightened
2 – 3 turns after nger
tightened
30 – 35 Nm
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Data sheet | Intrinsically safe pressure transmitter, MBS 4201, MBS 4251, MBS 4701 and MBS 4751
Electrical connections
Type code page 5 A1 A3 C8
EN 175301-803-A, Cable versions ISO 15170-A1-3-2-Sn (bayonet plug)
Ambient temperature -40 – 85 °C -40 – 85 °C -40 – 85 °C
Material
Glass filled polyamid,
PA 6.6
PVC cable
Glass filled polyester,
PBT
Enclosure 1) IP65 IP67 IP67 / IP69K
Ex-certication - Conformity specifications
Ambient temperature
Ex ia IIC T4 Ex ia IIC T5 Ex ia IIC T6
-40 – 100 °C
-40 – 75 °C
-40 – 50 °C
-40 – 80 °C ²) / -5 – 70 °C ³)
-40 – 75 °C ²) / -5 – 70 °C ³)
-40 – 50 °C ²) / -5 – 70 °C ³)
-40 – 100 °C
-40 – 75 °C
-40 – 50 °C
Medium temperature
Ex ia IIC T4 Ex ia IIC T5 Ex ia IIC T6
Power supply Ui Max. input current li Max. input power Pi Internal capacity Ci Internal inductivity Li
Electrical connection, 4 – 20 mA output
Pin1: + supply Pin 2: - supply Pin 3: not used
-40 – 125 °C
-40 – 95 °C
-40 – 50 °C
28 V dc
100 mA
0.7 W
< 50 nF
< 8 μH
-40 – 125 °C
-40 – 95 °C
-40 – 50 °C
28 V dc
100 mA
0.7 W < 50 nF incl. 0.2 nF / meter cable < 8 μH incl. 0.8 μH / meter cable
Black 1: + supply Black 2: - supply Screen: not connected to MBS enclosure
-40 – 125 °C
-40 – 95 °C
-40 – 50 °C
28 V dc
100 mA
0.7 W
< 50 nF
< 8 μH
Pin 1: + supply Pin 2: - supply Pin 3: ventilation Pin 4: not used
(2 wire)
Earth: Connected to MBS enclosure
1
) IP protection fullled together with mating connector
2
) Fixed installation
3
) Cables flexed during operation
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Safety instructions
All national safety regulations must be complied with in connection with installation, start-up and operation of Danfoss pressure transmitters type MBS 4201, MBS 4251, MBS 4701 and MBS 4751. Furthermore, the requirements of the Declaration of Conformity and national regulations for installation in explosion areas apply. Disregarding such regulations involves a risk of serious personal injury or extensive material damage. Work in connection with the pressure transmitters mentioned must be performed only by suitably qualied persons.
Basic safety and health requirements are fullled through compliance with:
EN60079-0: 2012, IEC60079-0: 6th edition, EN60079-11: 2012, IEC60079-11: 6th edition, EN60079-26: 2007, IEC60079-26: 2nd edition. Special Ex protection instructions: In the event of damage to enclosure or diaphragm, the pressure transmitter must be replaced.
The end user must ensure the installation is made in accordance to EN/IEC60079-25 and EN/IEC60079-14. WARNING –Potential Electrostatic Charging Hazard. The transmitter must only be installed in surroundings with low wind speed, and
where rubbing on the plug is unlikely. Cleaning with a damp cloth is recommended. To avoid build -up of electrostatic discharge it must be ensured the pressure connection of the pressure transmitter is having a reliable connection to earth with an impedance no exceeding 1 Gohm. The MBS transmitters do not provide isolation meeting the dielectric strength requirements of IEC/EN60079-11. MBS transmitters contain 10 nF capacitance from any input terminal to earth.
Special instruction when adjusting MBS 47xx series: If possible only adjust the MBS in non -hazardous area or take precaution to avoid electrostatic discharge and ensure the earthing of the transmitter housing is maintained. The transmitter must all ways be supplied from an intrinsic safety barrier.
Demands on the medium Parts in contact with the medium are made of stainless steel, EN 1088-1 1.4404 (AISI 316L). The user is responsible for a careful analysis of all process parameters when materials have to be specied and for ensuring the process medium is neutral to stainless steel as some media can be corrosive. The end user must ensure that the process connection is gas tight (as required by EN/IEC60079-26) which may require the use of a suitable gasket/seal in combination with the process connection to obtain a gas-tight connection. Gaskets and seals used at the pressure connection, including those supplied with the transmitters, must be determined as being suitable for use with the process medium and process pressure/temperature before use and alternative gasket material chosen if necessary. The end user must ensure the transmitter pressure connection is tightened with the correct torque as required for the specic thread type.
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