MELT PRESSURE TRANSMITTERS
ME SERIES Output 4...20mA
The ME series of Gefran, are pressure transmitters for
using in High temperature environment.
The main characteristic of this series is the capability to
read temperature of the media up to 400°C.
The constructive principle is based on the hydraulic tra-
smission of the pressure.
The fluid-filled system assures the temperature stability.
The phisical measure is transformed in a electrical mea-
sure by means the strain-gauge technology.
MAIN FEATURES
TECHNICAL SPECIFICATIONS
• Pressure ranges from: Accuracy (1) H <±0.25%FSO (100...2000 bar)
M <±0.5%FSO (35...2000 bar)
0-35 to 0-2000 bar / 0-500 to 0-30000 psi Resolution Infinite
• Accuracy: < ±0.25% FSO (H); < ±0.5% FSO (M) Measurement range 0..35 to 0..2000bar
• Fluid-filled system for temperature stability 0..500 to 0..30000psi
• Mercury filling volume: Maximum overpressure 2 x FS
(without degrading performances) 1.5 x FS above 1000bar/15000psi
ME0 (30mm3); ME1, ME2, ME3 (40mm3)
Measurement principle Extensimetric
• 1/2-20UNF, M18x1.5 standard threads; other types avai- Power supply 10...30Vdc
lable on request Maximum current absorption 32mA
• Autozero function on board / external option Insulation resistance (at 50Vdc) >1000 MOhm
• Drift Autocompensation function (SP version) Output signal Full Scale (FSO) 20mA
• Standard diaphragm is 15-5 PH stainless steel with Zero balance 4mA
(tollerance ± 0.25% FSO)
GTP+ coating
Zero signals adjustment “Autozero” function
• 17-7 PH corrugated diaphragm with GTP+ coating for (tollerance ± 0.25% FSO)
ranges below 100 bar-1500 psi Span adjustment within ± 5% FSO See Manual
Maximum allowed load See diagram
GTP+ (advanced protection) Response time (10...90% FSO) ~ 1ms
Coating with high resistance against corrosion, abrasion Output noise (RMS 10-400Hz) < 0.025% FSO
and high temperature Calibration signal 80% FSO
Output short circuit ingress and reverse YES
AUTOZERO FUNCTION polarity protection
Compensed temperature range 0...+85°C
All signal variations in the absence of pressure can be eli- Operating temperature range -30...+105°C
minated by using the Autozero function. Storage temperature range -40...+125°C
This function is activated by closing a magnetic contact Thermal drift in compesated range: < 0.02% FSO/°C
Zero / Calibration / Sensibility
located on the transmitter housing.
Diaphragm maximum temperature 400°C / 750°F
The procedure is permitted only with pressure at zero.
Zero drift due to change in process < 0.02 bar/°C
temperature (zero)
AUTOCOMPENSATES INFLUENCE OF MELT Zero drift temperature for Autocompensated
version (SP) within the temperature range < 0.003 bar/°C 100 ≤ p < 500 bar
TEMPERATURE 20°C-400°C inclusive the drift temperature 0.0014 %FS/°C p ≥ 500 bar
of the housing
Thanks to internal self-compensation, the MSP series Standard material in contact Diaphragm:
transmitter cancels the effect of pressure signal variation with process medium • 15-5 PH with GTP+ coating
• 17-7 PH corrugated diaphragm
caused by variation of Melt temperature. with GTP+ coating for ranges
This reduces at the minimum the read error caused by <100 bar (1500psi)
Stem:
heating of the filling fluid (typical of all sensors built with • 17-4 PH
“filled” technology). Thermocouple (model ME2) STD: type “J” (isolated junction)
Protection degree IP65
(with 6-pole female connector)
FSO = Full scale output : (1) BFSL method (Best Fit Straight Line): includes combined
effects of Non-Linearity, Hysteresis and Repeatability.
MECHANICAL DIMENSIONS
ME0 ME2
D1 1/2 - 20UNF
ø7.8 -0.05
D2
[ ø0.31” -0.002 ]
ø10.5 -0.025
D3
[ ø0.41” -0.001 ]
D4 ø10.67
[ ø0.42” ]
D5 ø12.7
[ ø0.5” ]
A 5.56 -0.26
[ 0.22” -0.01 ]
B 11.2
[ 0.44” ]
C 15.74
[ 0.62” ]
Ch 16
[Hex] [ 5/8” ]
ME1 ME3
D1 M18x1.5
ø10 -0.05
D2
[ ø0.394” -0.002 ]
ø16 -0.08
D3 Exposed
[ ø0.63” -0.003 ]
capillary
D1 1/2-20UNF
D4 ø16 -0.4
[ ø0.63” -0.016 ] D2 .307/.305”
[7.80/7.75mm]
ø18 D3 .414/.412”
D5
[ ø0.71” ] [10.52/10.46mm]
A .125/.120”
6 -0.26
A [3.18/3.05mm]
[ 0.24” -0.01 ]
B .318/.312”
14.8 -0.4 [8.08/7.92mm]
B C .81”
[ 0.58” -0.016 ]
[20.6mm]
19
C [ 0.75” ]
Ch 19
[Hex] [ 3/4” ]
NOTE : dimensions refer to rigid stem length option “4” (153 mm – 6”)
WARNING : For installation use a maximum tightening torque of 56 Nm (500 in-lb)
ELECTRICAL CONNECTIONS
MAGNETIC EXTERNAL
CURRENT OUTPUT (4...20mA, two wires) AUTOZERO AUTOZERO
6-pin 8-pin 6-pin 8-pin
CONTROLLER
Supply voltage + A B Supply voltage + A B
(10...30Vdc) (10...30Vdc)
n.c. C A n.c. C A
Signal - B D Signal - B D
(4...20mA) (4...20mA)
n.c. D C n.c. D C
AMPL./CONV. Calibration shunt Autozero
E-F E-F E-F E-F
n.c. G-H n.c. G-H
6 pin connector
VPT07RA10-6PT2
(PT02A-10-6P) Shield drain wire is tied to
connector via cable clamp
LOAD DIAGRAM AUTOZERO FUNCTION
42 [1.65"]
LOAD RESISTANCE Rl
8 pin connector
PC02E-12-8P Bendix
SUPPLY VOLTAGE
The diagram shows the optimum ratio between
the load and supply voltage of the 4...20mA The Autozero function is activated throu-
transmitter. gh a magnetic contact (external magnet
For a correct use, choose any combination of supplied with the sensor).
load resistance and supply voltage, in the sha- See the manual for a complete Autozero
ded area. function explanation.
ACCESSORIES
Connectors
6-pin mating connector (IP65 protection degree) CON300
Cable color code Cable color code
8-pin mating connector CON307
6 wires 8 wires
Extension cables
Conn. Wire Conn. Wire
6-pin connector with 8m (25ft) cable C08WLS
6-pin connector with 15m (50ft) cable C15WLS A Red A White
6-pin connector with 25m (75ft) cable C25WLS
6-pin connector with 30m (100ft) cable C30WLS B Black B Red
8-pin connector with 8m (25ft) cable E08WLS
C White C Green
8-pin connector with 15m (50ft) cable E15WLS
8-pin connector with 25m (75ft) cable E25WLS D Green D Black
8-pin connector with 30m (100ft) cable E30WLS
E Blue E Blue
Other lengths consult factory
Accessories F Orange F Orange
Mounting bracket SF18
Dummy plug for 1/2-20UNF SC12 G n.c.
Dummy plug for M18x1.5 SC18
Drill kit for 1/2-20UNF KF12 H n.c.
Drill kit for M18x1.5 KF18
Cleaning kit for 1/2-20UNF CT12
Cleaning kit for M18x1.5 CT18
Fixing pen clip PKIT309
Autozero pen PKIT312
Thermocouple for ME2 model
Type “J” (153mm - 6” stem) TTER 601
ORDER CODE
M 000
Autocompensation (*) SP 000= Standard version
Special or customized versions
Standard -
available on request
(*) available for ranges > to 100bar
(*) not available for version ME3 E External autozero
OUTPUT SIGNAL - Magnetic autozero
4...20mA E FLEXIBLE LENGTH
CONFIGURATION (mm / inches)
Rigid stem 0 Standard (ME0)
Rigid stem + flexible 1 0 none
With thermocouple 2 Standard (ME1, ME2)
Exposed capillary 3 D 457mm 18”
E 610mm 24”
CONNECTOR 30”
F 760mm
Standard Standard (ME3)
6 pin 6 L 711mm 28”
8 pin 8
Available on request
ACCURACY CLASS A 76mm 3”
0.25% FSO B 152mm 6”
H C 12”
(ranges ≥ 100 bar/1500 psi) 300mm
G 914mm 36”
0.5% FSO M
H 1067mm 42”
RANGE I 1220mm 48”
J 1372mm 54”
bar psi
K 1520mm 60”
35 B35U 500 P05C
50 B05D 750 P75D
70 B07D 1000 P01M RIGID STEM LENGTH
100 B01C 1500 P15C (mm / inches)
200 B02C 3000 P03M Standard (ME0, ME1, ME2)
350 B35D 5000 P05M 4 153mm 6”
500 B05C 7500 P75C 5 318mm 12.5”
700 B07C 10000 P10M Standard (ME3)
1000 B01M 15000 P15M 0 none
1400 B14C 20000 P20M Available on request
30000 P30M 1 38mm 1.5”
2000 B02M
2 50mm 2”
Examples 3 3”
76mm
ME2-6-M-B07C-1-4-D-000 6 350mm 14”
Melt pressure transmitter with type “J” thermocouple, 4...20mA output, 7 400mm 16”
6-pin connector, 1/2-20UNF thread, 700 bar full scale, 0,5% accuracy 8 456mm 18”
class, 153 mm (6”) rigid stem, 457mm (18”) flexible capillary.
THREAD
MSPE0-6-M-P03M-1-4-0-000 Standard
Melt pressure transmitter autocompensated version, rigid stem, 4...20mA
1 1/2 - 20 UNF
output, 6-pin connector, 1/2-20UNF thread, 3000 psi full scale, 0,5%
accuracy class, 153 mm (6”) rigid stem. 4 M18 x 1.5
Sensors are manufactured in compliance with:
- EMC compatibility directive
- Machinery directive
Product designed and available in compliance with Directive 2011/65/EU (RoHS II) only for large-scale stationary installa-
tion or industrial tools, or for B-to-B laboratory equipments for R&D purposes.
Electrical installation requirements and Conformity certificate are available on our web site: www.gefran.com
GEFRAN reserves the right to make any kind of design or functional modification at any moment without prior notice.
GEFRAN spa
via Sebina, 74
25050 PROVAGLIO D’ISEO (BS) - ITALIA
tel. 0309888.1 - fax. 0309839063
DTS_ME_07-2017_ENG
Internet: http://www.gefran.com
