MELT PRESSURE TRANSMITTERS

4-20 mA Output
Main Features
ME0 • Pressure ranges from 0–35 to 0–2000 bar
(0–500 to 0–30000 psi)
• Strain gage Wheatstone bridge
• Accuracy: <±0.25% FSO (H); <±0.5% FSO (M)
• Internally generated 80% calibration signal (R-Cal)
• Fluid-filled system for temperature stability
• Fully interchangeable with all existing brands
The rigid stem configuration makes installation • Grade of protection: IP65 (6-pin connector version)
fast and easy. • 1/2-20 UNF, M18x1.5 standard threads; other types
available on request
• 15-5 PH stainless steel diaphragm with Armoloy coating
standard (others available on request)
• 17-7 PH corrugated diaphragm with TiN (Titanium Nitride)
coating for ranges below 100 bar (1500 psi)

ME1

TECHNICAL SPECIFICATIONS

H < ±0.25% FSO for ranges

Nominal Accuracy including 100 bar (1500 psi) and above
The flexible configuration is designed for Linearity, Repeatability, Hysteresis M < ±0.5% FSO for ranges
below 100 bar (1500 psi)
applications requiring further thermal isolation or
Resolution Infinite
where installation would be otherwise difficult or
Measurement Range 0–35 to 0–2000 bar
impractical. 0–500 to 0–30000 psi
Maximum Overpressure 2 x FSO
(1000 bar [15000 psi] and below)
1.5 x FSO
(above 1000 bar [15000 psi])
Measurement Principle Strain gage Wheatstone bridge
ME2 Supply Voltage 12–30 VDC (24 VDC rec.)
Maximum Current Consumption 20 mA
Isolation Resistance (at 50 VDC) > 1000 MΩ
Full Scale Output (FSO) 20 mA
Zero Balance 4 mA
Signals Adjustment Nominal Pressure 5% FSO
Ambient Pressure min. 10 bar (150 psi)
Maximum Load see diagram (p. 13)
The pressure/temperature configuration requires Response Time (10 to 90% FSO) ~ 8 ms
only one mounting hole for the measurement of Output Noise (RMS 10–400 Hz) < 0.05% FSO
both process values. Calibration Signal 80% FSO
Protection Against Output Short Circuit YES
and Supply Voltage Inverted Polarity
Protection Against Output Voltage YES
Spikes according to 89/336/EEC
Strain Gage Housing 0–76°C
Compensated Temperature Range (32–170°F)
Housing Temperature Range -30–85°C (-22–185°F)
ME3 Thermal Drift in Zero Shift 2.0%/100°C (1.0%/100°F)
Compensated Range Sensitivity Shift 2.0%/100°C (1.0%/100°F)
Diaphragm Maximum Temperature 400°C (750°F)
Zero Drift Due to Change 0.02 bar/°C
in Process Temperature (15 psi/100°F )
Material in contact Standard 15-5PH SS (Armoloy coated)
with process medium Below 100 bar Corrugated 17-7PH SS
(1500 psi) (Titanium Nitride coated)
The exposed capillary configuration is ideal to fit Thermocouple (model ME2) STD : type “J” (isolated junction)
in space-restricted locations. Protection Degree IP65
(with 6-pin mating connector)
Electrical connections 6-pin Conn. VPT07RA10-6PT
(PT02A-10-6P)
8-pin Conn. PC02E-12-8P
FSO = Full Scale Output (output signal at nominal pressure)
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MECHANICAL DIMENSIONS

D1 1/2-20 UNF
ø7.8 -0.05
D2
[ø0.307” -0.002]
ø10.49 ±0.025
D3
[ø0.413” ±0.001]
ø10.67
D4
[ø0.42”]
ø12.7
D5
[ø0.5”]
5.56 -0.26
A
[0.219” -0.01]
11.4
B
[0.45”]
15.75
C
[0.62”]

Ch 16
[Hex] [5/8”]

D1 M18x1.5
ME0 D2
ø10 -0.05 ME1
[ø0.394” -0.002]
ø16 -0.08
D3
[ø0.630” -0.015]
ø16 -0.4
D4
[ø0.630” -0.015]
ø18
D5
[ø0.71”]
6 -0.26
A
[0.236” -0.010]
14.8 -0.4
B
[0.580” -0.016]
19
C
[0.75”]

Ch 19
[Hex] [3/4”]

NOTE:
Dimensions refer to rigid stem
length option “4” (153mm – 6”)
and flex length option “D”
(457mm – 18”)

WARNING:
For installation, use a
maximum tightening
ME2 torque of 56 Nm (500 in-lb) ME3

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ELECTRICAL CONNECTIONS

6 pin connector
CURRENT OUTPUT (4–20 mA two wires) VPT07RA10-6PT
6-pin 8-pin (PT02A-10-6P)

CONTROLLER
Supply Voltage + A B
(12..30 Vdc)
n.c.
C A
Signal -
(4..20 mA) B D
n.c.
D C 8 pin connector
PC02E-12-8P Bendix
AMPL./CONV. Calibration shunt
E–F E–F
n.c. G–H
Shield drain wire is tied to
connector via cable clamp

LOAD DIAGRAM FOR CURRENT OUTPUT ADJUSTMENTS

ZERO and SPAN adjustment

can be made by trimpots
inside the transmitter body,
accessible after removing the
two protection screws.

Span is factory set and

should not be adjusted.

The diagram shows the optimum ratio between the load and
supply voltage of the 4–20 mA transmitter.
For a correct use, choose any combination of load resistance
and supply voltage in the shaded area.

ACCESSORIES

Connectors
6-pin mating connector (IP65 protection degree) . . . . . . . . . . .CON300
8-pin mating connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CON307
Extension cables Cable Wiring Code
6-pin connector with 8m (25ft) cable . . . . . . . . . . . . . . . . . . . .C08WLS
6-pin connector with 15m (50ft) cable . . . . . . . . . . . . . . . . . . .C15WLS Function Wire
6-pin connector with 25m (75ft) cable . . . . . . . . . . . . . . . . . . .C25WLS Sig (+) Red
6-pin connector with 30m (100ft) cable . . . . . . . . . . . . . . . . . .C30WLS Sig (-) Black
8-pin connector with 8m (25ft) cable . . . . . . . . . . . . . . . . . . . .E08WLS Exc (+) White
8-pin connector with 15m (50ft) cable . . . . . . . . . . . . . . . . . . .E15WLS Exc (-) Green
8-pin connector with 25m (75ft) cable . . . . . . . . . . . . . . . . . . .E25WLS Cal Blue
8-pin connector with 30m (100ft) cable . . . . . . . . . . . . . . . . . .E30WLS Cal Brown
Other lengths . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .consult factory
Accessories
Mounting bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SF18
Dummy plug for 1/2-20UNF . . . . . . . . . . . . . . . . . . . . . . . . . .SC12
Dummy plug for M18x1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . .SC18
Drill kit for 1/2-20UNF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .KF12
Drill kit for M18x1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .KF18
Cleaning kit for 1/2-20UNF . . . . . . . . . . . . . . . . . . . . . . . . . . .CT12
Cleaning kit for M18x1.5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CT18
Thermocouple for ME2 model
Type “J” (153 mm [6”] stem) . . . . . . . . . . . . . . . . . . . . . . . . . .TTER718

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ORDER CODE

ME 000

OUTPUT SIGNAL 000 = standard version

4–20 mA E Special or customized versions
available on request

VERSION FLEXIBLE LENGTH (mm, inches)

Rigid Stem 0 Standard (ME0)
Rigid Stem + Flex 1 0 none
With Thermocouple 2 Standard (ME1, ME2)
Exposed Capillary 3 D 457 mm, 18”
E 610 mm, 24”
CONNECTOR F 760 mm, 30”
Standard Standard (ME3)
6 pin 6 L 711 mm, 28”
Available on request Available on request
8 pin 8 A 76 mm, 3”
NPT N B 153 mm, 6”
C 300 mm, 12”
G 914 mm, 36”
ACCURACY CLASS H 1067 mm, 42”
0.25% FSO H I 1220 mm, 48”
(ranges ≥ 100 bar/1500 psi) J 1372 mm, 54”
0.50% FSO M K 1520 mm, 60”

RANGE RIGID STEM LENGTH (mm, inches)

bar psi Standard (ME0, ME1, ME2)
35 B35U 500 P05C 4 153 mm, 6”
50 B05D 750 P75D 5 318 mm, 12.5”
70 B07D 1000 P01M Standard (ME3)
100 B01C 1500 P15C 0 none
200 B02C 3000 P03M Available on request
350 B35D 5000 P05M 1 38 mm, 1.5”
500 B05C 7500 P75C 2 50 mm, 2”
700 B07C 10000 P10M 3 76 mm, 3”
1000 B01M 15000 P15M 6 350 mm, 14”
1400 B14C 20000 P20M 7 400 mm, 16”
2000 B02M 30000 P30M 8 457 mm, 18”

THREAD
Standard
1 1/2-20 UNF
4 M18x1.5
Available on request
2 M10x1.0
3 M14x1.5

Examples
ME2-6-H-B07C-1-4-D-000
Melt pressure transmitter with type “J” thermocouple, 4–20 mA output, 6-pin connector, 1/2-20 UNF thread,
700 bar full scale output, 0.25% accuracy class, 153 mm (6”) rigid stem, 457 mm (18”) flexible armor
ME0-6-M-P03M-1-4-0-000
Melt pressure transmitter, rigid stem, 4–20 mA output, 6-pin connector, 1/2-20 UNF thread, 3000 psi full
scale output, 0.50% accuracy class, 153 mm (6”) rigid stem

GEFRAN reserves the right to make any kind of design or functional modification at any moment without prior notice.

cod. 85707 — 09/02

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