Data sheet
Pressure transmitters
EMP 2
IC.PD.P20.E8.02 | 520B8644 | 1
© Danfoss | DCS (im) | 2018.09
The high accuracy pressure transmitter EMP 2 is
designed for monitoring and control in marine
and industial applications and offers a reliable
pressure measurement, even under harsh
environmental conditions.
The flexible 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 influences like
cavitation, liquid hammer or pressure peaks.
* For use in zone 2 explosive atmospheres.
Features
Approvals
• For use in Zone 2 explosive atmosphere
Lloyds Register of Shipping, LRS
Germanischer Lloyd, GL
Det Norske Veritas, DNV
Registro Italiano Navale, RINA
Bureau Veritas, BV
Nippon Kaiji Kyokai, NKK
American Bureau of Shipping, ABS
Korean Register of Shipping, KR
China Classification Society, CCS
Russian Maritime Register of Shipping, RMRS
Data sheet | Pressure transmitters, EMP 2
IC.PD.P20.E8.02 | 520B8644 | 2© Danfoss | DCS (im) | 2018.09
Technical data
Performance (EN 60770)
Sensor temperature range
Normal -10 – 70 °C, (Ref. Fig. 1)
ATEX Zone 2 -10 – 85 °C
Transport / storage temperature -50 – 70 °C
Media temperature -40 – 100 °C, (Ref. Fig. 1)
Media
Water, fuel, oil, lubricating oil, refrigerants,
ammonia, gas etc.
Voltage supply Max. 32 V and min. 12 V d.c. between terminals N and P
Load resistance
A. max. 410 Ω at 24 V d.c. 50% / -20%
B. max. 650 Ω at 24 V d.c. 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 fields, 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 classification
societies are up to 100 Hz, acceleration 4G.
Extended specifications 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
Enclosure
IP65
Housings are made of enamelled pressure-die-cast
aluminium (GD-AISI 12)
Pressure connection G ¼, G ½ A standard, G 3⁄8 A mano
Net weight approx. 1 kg
Cable entry Pg 13.5 for cable diameters 5 – 14 mm
Identification
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.
Explosive atmospheres
Zone 2 applications EN60079-0; EN60079-15
When used in ATEX Zone 2 areas at temperatures <-10 °C the cable and plug must be protected against impact