Danfoss EMP 2 Data sheet

Data Sheet

Pressure transmitter Type EMP 2

For monitoring and control in marine and industial applications

The high accuracy pressure transmitter EMP 2 is designed for monitoring and control in marine and industial applications and oers a reliable pressure measurement, even under harsh environmental conditions.

The exible pressure transmitter programme covers absolute or gauge (relative) versions with zero and span adjustment with a 4 – 20 mA output signal.

It has all the necessary marine approvals. Special versions with integrated pulse-snubber available, designed for use in hydraulic applications with severe medium inuences like cavitation, liquid hammer or pressure peaks.

Features

• For use in Zone 2 explosive atmosphere

AI175686432328en-000901

1234Surge damper

Pump

Valve

Tank

Sensor temperature range Normal

-10 – 70 °C, (Ref.

Figure 2: Max. ambient temperature as a function of

temperature)

ATEX Zone 2

-10 – 85 °C

Transport / storage temperature

-50 – 70 °C

Media temperature

-40 – 100 °C, (Ref.

Figure 2: Max. ambient temperature as a function of

temperature)

Media

Water, fuel, oil, lubricating oil, refrigerants, ammonia, gas etc.

Voltage supply

Max. 32 V and min. 12 V DC between terminals N and P

Load resistance A. max. 410 Ω at 24 V DC 50% / -20%

B. max. 650 Ω at 24 V DC 50% / 0%

Zero point adjustment

- 5 – 20% range span; but max. -1–1.5 bar (kp/cm

2

)

Span adjustment

± 5% of range span; max. ± 5 bar (kp/cm

2

)

Combination of span and zero point adjustments

- 5 – 20% of range span

Noise – immunity

Complies with the standard for industrial apparatus EN 61000-6-2. The standard contains tests for the following: HF elds, mains transmitted HF, voltage transients, electrostatic immunity, supply voltage variations, low-frequency radiation and transient protection in accordance with Germanischer Lloyd

Noise – emission

Complies with standard EN 61000-6-3

Accuracy < 0.3 % of FS

In vacuum (below 0 bar)

< 2.3 % of FS

Temperature dependence Thermal zero point shift

≤ ± 0.06 % FS / °C

Thermal sensitivity (span) shift

≤ ± 0.06 % FS / °C

Voltage dependence

≤ ± 0.1% FS / 10 V

Vibration stability

3 – 30 Hz amplitude 1.13 mm and 30 – 300 Hz acceleration 4G according to IEC 60068-2-6. The requirements of the ship classication societies are up to 100 Hz, acceleration 4G. Extended specications by prior arrangement

Time constant Liquids with viscosity < 100 cSt

< 4 ms

Air and gas in combination with pulse snubber:

< 35 ms Shock stability

500 g for 1 ms to IEC 60068-2-27

Pressure transmitter, Type EMP 2

Applications

Application and media conditions

Figure 1: Pressure range

In cases where valves are closed momentarily, surges of a value in excess of that for which the pressure element is designed can occur. To avoid damage to the pressure element, a damper should be tted.

The device can consist of a exible pipe, a throttle, a shock valve, or a combination of these items. The amplitude of surges should never exceed the maximum pressure range of the pressure transmitter.

Product specication

Technical data

Table 1: Performance (EN 60770)

A

D

B

C

ABCDAmbient temperature

Temperature and medium

Operating range

Transport and storage temperature

Enclosure

IP65, Housings are made of enamelled pressure-die-cast aluminium (GD-AISI 12)

Pressure connection

G ¼, G ½ A standard, G ⅜ A mano

Net weight

approx. 1 kg

Cable entry

Pg 13.5 for cable diameters 5 – 14 mm

Zone 2 applications

(1)

EN60079-0; EN60079-15

Pressure transmitter, Type EMP 2

Table 2: Explosive atmospheres

(1)

When used in ATEX Zone 2 areas at temperatures <-10 °C the cable and plug must be protected against impact

Identication

The type designation and code number of the transmitter is embossed on the side of the housing at the bottom close to the pressure connector.

Installation conditions

Figure 2: Max. ambient temperature as a function of temperature

Mounting

Type EMP 2 is equipped with a 3 mm stell bracket for mounting.

Pressure connection

Connector with outside cylindrical thread G ½, some types available with G ⅜ A mano, and inside cylindrical thread G ¼, to ISO 228.

The primary insertion length of the connector corresponds to EN 837. Connection to the transmitter is made through a connector with a spanner at, 14 mm across ats.

When tting or removing pressure lines, the spanner ats on the pressure connector should be used to apply counter-torque.

A

B

C

D

E

F

ABCDEFmax. 70 °C

Condensed liquid

Reliable, good convection

Insulation against radiant heat

Steam 170 °C

Thin (=low heat conductivity) uninsulated tube

Pressure transmitter, Type EMP 2

Figure 3: Insulation against radiant heat

Water systems

Water in the pressure element is not harmful, but in the event of frost a water-lled pressure element may burst. To prevent this the transmitter should be allowed to operate on an air cushion.

Steam plant

To protect the pressure element against temperatures in excess of the maximum temperature for the medium (100 °C), the insertion of a water-lled loop is recommended. In the example, Figure 3: Insulation against radiant heat, insulation against radiant heat is also shown.

Electrical connection

Figure 4: Wiring diagram

The transmitter has a wiring diagram, see above gure. Terminals P (positive) and N (negative) are connection terminals for the supply voltage.

The same leads are used for supply voltage and output signal. A function test can be performed between terminals N and T without cutting o the current loop.

ABC

G ½ A (G 3/8 A mano)

Pg 13.5

G ¼

1

Pulse-snubber

Pressure transmitter, Type EMP 2

Pulse snubber

Figure 5: pulse snubber

EMP 2 with the pressure range 0 – 6 bar and 0 – 10 bar at extended test pressure is provided with an integrated pulse snubber for protection of the sensor element against cavitations and air bubbles in the media due to extreme pressure peaks and pulsations. Such conditions may be caused by pumps or fast operation valves in both high and low pressure systems.

The integrated pulse snubber is designed as an 0.3 mm orice mounted in the pressure connection. The medium should not contain particles which may clog up in the orice.

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

Dimensions and weight

Net weight 1 kg

Figure 6: Dimensions diagram

Operating pressure

Test pressure

Min. burst pressure

Code no. EMP 2

pe [bar]

G ½ A

G ⅜ A

-1 – 1.5

(1)

5

100

084G2100

-

-1 – 5

(1)

35

200

084G2101

-

0.2 – 1

3.2

100

084G2102

-

0 – 1.6

3.2

100

084G2104

-

0 – 2.55200

084G2105

-

0 – 48200

084G2106

084G2206

0 – 618400

084G2107

084G2207

0 – 6

60

(2)

400

084G2108

-

0 – 1020400

084G2109

084G2209

0 – 10

60

(2)

400

084G2110

-

0 – 1632400

084G2111

084G2211

0 – 2550400

084G2112

-

0 – 4080400

084G2113

084G2213

0 – 60

120

400

084G2114

-

0 – 100

200

400

084G2115

-

0 – 160

260

640

084G2116

-

0 – 250

375

1000

084G2117

-

-1 – 9

(1)

20

400

084G2120

-

Operating pressure

Test pressure

Min. burst pressure

Code no. EMP 2

pe [ kp/cm2]

G ½ A

G ⅜ A

-1 – 5

(1)

35

200

084G2131

-

0 – 48200

084G2136

084G2157

0 – 618400

084G2137

084G2158

0 – 1020400

-

084G2179

0 – 1532400

084G2141

084G2159

0 – 2550400

084G2142

-

0 – 4080400

084G2143

084G2169

0 – 50

120

400

084G2144

-

0 – 2050400

084G2154

-

Pressure transmitter, Type EMP 2

Ordering

Table 3: Pressure in bar

(1)

Sealed gauge

(2)

With pulse snubber

Table 4: Pressure in kp/cm

2

 NOTE:

When ordering please state type and code number

Part

Symbol

Description

Material

Code no.

Damping coil

Damping coil with G 3/8 unions and 1.5 m copper

capillary tube.

Copper

060-104766

Damping coil

Damping coil with G ½ unions and 1 m capillary

tube. Standard washers supplied

Stainless steel

060-016966

Damping coil, arm-

oured

Damping coil with G ³⁄8 unions and 1 m armoured copper capillary tube. Standard washers supplied

Copper

060-333366

Nipple

G ¼ A × G 3/8A with copper washer

Brass

060-333266

G ¼ A × M10 ext. × 1 with copper washer

Brass

060-333866

Pascal (= Newton per square me‐ tre)

Newton per square [mm]

[bar]

Kilopond per square metre [mm] H2O

Meter water gauge

Technical at‐ mosphere [kp/cm2]

Physical at‐ mosphere

Torr [0 °C]

Inches Hg [0 °C]

Poundforce per Square inch

[N/m

2

] Pa

[N/mm

2

]

[kp/m

2

]

[m] H

2

O

[at]

[atm]

[mm] Hg

[in] Hg

[lbf/in

2

] psi

1 Pa

1

10-610

-5

0.1020

1.020 • 10

-4

1.020 • 10

-5

9.869 • 10

-5

7.500 • 10

-3

2.953 • 10

-4

1.450 • 10

-4

1 N/mm

2106

1

10

1.020 •10

5

10.20

9.869

7.5 • 10

3

295.3

145.0

1 bar

10

5

0.1

1

10.197 • 10

3

10.20

1.020

0.9869

750

29.53

14.50

1 kp/m

2

9.80665

9.807 • 10

-6

9.807 • 10

-5

1

10-310-40.9678 • 10

-4

0.07355

2.896 • 10

-3

1.422 • 10

-3

1 m H

2

O

9806.7

9.807 • 10

3

0.09807

100010.1

0.09678

73.55

2.896

1.422

1 at

98.066 • 10

3

0.09807

0.9807

104101

0.9678

735.5

28.96

14.22

1 atm

101.325 • 10

3

0.1013

1.013

10.333 • 10

3

10.33

1.0331760

29.92

14.70

1 mm Hg

133.32

1.333 • 10

-4

1.333 • 10

-3

13.60

0.01360

1.360 •10

-3

1.316 • 10

-3

1

0.03937

1.934 • 10

-2

1 in Hg

3387

3.387 •10

-3

0.03387

345.3

0.3453

0.03453

0.03342

25.410.4912

1 psi

6895

6.895 • 10

-3

0.06895

703.1

0.7031

0.07031

0.06804

51.71

2.036

1

Pressure transmitter, Type EMP 2

Accessories

Table 5: Accessories list

Conversion table

Table 6: Conversion values

File name

Document type

Document topic

Approval authority

RU Д-DK.БЛ08.B.00302_18

EAC Declaration

EMC

EAC

DLN 34014-AE003

Marine - Safety Certicate

-KRELE071320XP

Marine - Safety Certicate

-

RINA

2002547TA

Marine - Safety Certicate

-LRTJ18T00028

Marine - Safety Certicate

-

CCS

TAA000012U

Marine - Safety Certicate

-

DNV GL

18.10316.266

Marine - Safety Certicate

-

RMRS

TA19494M

Marine - Safety Certicate

-

NKK

02280-H0 BV

Marine - Safety Certicate

-BV15-LD1339318-PDA

Marine - Safety Certicate

-

ABS

DK.C.30.018.A 31316

Measuring - Performance Certicate

-

GOST

064G9615.06

EU Declaration

ATEX/EMCD/RoHS

Danfoss

UA.1O146.D.00075-19

UA Declaration

EMCD/LVD

LLC CDC EURO TYSK

CRN.0F18477.5123467890YTN

Pressure - Safety Certicate

CRN

TSSA

064R9402.00

Manufacturers Declaration

PED

Danfoss

SMS.W.II-2179-B.0

Marine - Manufacturing Permission

-BVE494625

Electrical - Safety Certicate

-

UL

Pressure transmitter, Type EMP 2

Certicates, declarations, and approvals

The list contains all certicates, declarations, and approvals for this product type. Individual code number may have some or all of these approvals, and certain local approvals may not appear on the list.

Some approvals may change over time. You can check the most current status at danfoss.com or contact your local Danfoss representative if you have any questions.

Table 7: Certicates and declarations

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Spare Parts

Get access to the Danfoss spare parts and service kit catalog right from your smartphone. The app contains a wide range of components for air conditioning and refrigeration applications, such as valves, strainers, pressure switches, and sensors.

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Danfoss EMP 2 Data sheet

Specifications and Main Features

Frequently Asked Questions

User Manual