MELT PRESSURE TRANSDUCERS
M3 SERIES mV / V output
The M3 series of Gefran, are pressure transducers 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 trasmission of the pressure.
The fluid-filled system assures the temperature stability.
The phisical measure is transformed in a electrical measure by means the strain-gauge technology.
MAIN FEATURES
• Pressure ranges from:
0-35 to 0-2000 bar / 0-500 to 0-30000 psi
• Accuracy: <±0.25% FSO (H); <±0.5% FSO (M)
• Fluid-filled system for temperature stability
• Mercury filling volume:
M30 (30mm3), M31-M32-M33 (40mm3)
• 1/2-20UNF, M18x1.5 standard threads; other types available on request
• Standard diaphragm is 15-5 PH stainless steel with
GTP+ coating
• 17-7 PH corrugated diaphragm with GTP+ coating for
ranges below 100bar-1500psi
GTP+ (advanced protection)
Coating with high resistance against corrosion, abrasion
and high temperature
TECHNICAL SPECIFICATIONS
Accuracy (1)
Resolution
Measurement range
Maximum overpressure
Measurement principle
Supply voltage
Strain gage bridge resistance
Isolation resistance (at 50Vdc)
Full Scale Output (FSO)
(toll. ± 0.5 FSO)
Zero balance
Calibration signal
Compensated temperature range
Maximum temperature range
Thermal drift in compensated range
Zero/Calibr./Sens.
Diaphragm maximum temperature
Zero drift due to change in process
temperature
Standard material in contact
with process medium
Thermocouple (model M32)
Protection degree (with 6-pin mating
connector)
Electrical connections
FSO = Full Scale Output
(1) BFSL method (Best Fit Straight Line): includes combined effects of NonLinearity, Hysteresis and Repeatability
H <±0.25%FSO (100...2000 bar)
M <±0.5%FSO (35...2000 bar)
Infinite
0..35 to 0..2000bar
0..500 to 0..30000psi
2 x FS
1.5 x FS above1000bar/15000psi
Strain gage Wheatstone bridge
6..12Vdc (10Vdc typical)
350 Ohm
(550 Ohm below 100bar - 1500psi)
>1000 MOhm
2.5 mV/V (option 2)
3.33 mV/V (option 3)
±0.5% FSO
80% FSO
0...+100°C
32...212°F
-30...+120°C
-22...250°F
< 0.02% FSO/°C
< 0.01% FSO/°F
400°C
750°F
0.02 bar/°C
15 psi/100°F
Diaphragm:
• 15-5 PH with GTP+ coating
• 17-7 PH corrugated diaphragm
with GTP+ coating for ranges
<100 bar (1500psi)
Stem:
• 17-4 PH
STD : type “J” (isolated junction)
IP65
6-pin Conn. VPT07RA10-6PT
(PT02A-10-6P)
8-pin Conn. PC02E-12-8P
MECHANICAL DIMENSIONS
M30
D1
D2
D3
D4
D5
A
B
C
M32
1/2 - 20UNF
ø7.8 -0.05
[ ø0.31” -0.002 ]
ø10.5 -0.025
[ ø0.41” -0.001 ]
ø10.67
[ ø0.42” ]
ø12.7
[ ø0.5” ]
5.56 -0.26
[ 0.22” -0.01 ]
11.2
[ 0.44” ]
15.74
[ 0.62” ]
M31
Ch
[Hex]
D1
D2
D3
D4
D5
A
B
C
Ch
[Hex]
16
[ 5/8” ]
M18x1.5
ø10 -0.05
[ ø0.394” -0.002 ]
ø16 -0.08
[ ø0.63” -0.003 ]
ø16 -0.4
[ ø0.63” -0.016 ]
ø18
[ ø0.71” ]
6 -0.26
[ 0.24” -0.01 ]
14.8 -0.4
[ 0.58” -0.016 ]
19
[ 0.75” ]
19
[ 3/4” ]
M33
Exposed
capillary
D1 1/2-20UNF
D2 .307/.305”
[7.80/7.75mm]
D3 .414/.412”
[10.52/10.46mm]
A .125/.120”
[3.18/3.05mm]
B .318/.312”
[8.08/7.92mm]
C .81”
[20.6mm]
NOTE : Dimensions refer to rigid stem length option “4” (153mm - 6”)
WARNING : For installation use a maximum tightening torque of 56 Nm (500 in-lb)
ELECTRICAL CONNECTIONS
mV/V OUTPUT
6-pin 8-pin
6 pin connector
VPT07RA10-6PT2
(PT02A-10-6P)
R-Cal
Supply Voltage
Supply Voltage
Signal
Signal
Calibration shunt
8 pin connector
PC02E-12-8P Bendix
+
C
-
D
-
B
+
A
E - F
n.c.
Connect the cable sheathing
to the side of the instrument.
A
C
D
B
E - F
G - H
ACCESSORIES
Connectors
6-pin mating connector (IP65 protection degree) CON300
8-pin mating connector CON307
Extension cables
6-pin connector with 8m (25ft) cable C08W
6-pin connector with 15m (50ft) cable C15W
6-pin connector with 25m (75ft) cable C25W
6-pin connector with 30m (100ft) cable C30W
8-pin connector with 8m (25ft) cable E08W
8-pin connector with 15m (50ft) cable E15W
8-pin connector with 25m (75ft) cable E25W
8-pin connector with 30m (100ft) cable E30W
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
Cable color code
6 wires
Conn. Wire
A Red
Black
B
C White
D Green
E Blue
F Orange
Cable color code
8 wires
Conn. Wire
A White
B Red
C Green
D Black
E Blue
F Orange
G n.c.
H n.c.
Thermocouple for M32 model
Type “J” (153mm - 6” stem) TTER 601
ORDER CODE
OUTPUT SIGNAL
3.33 mV/V
Rigid stem
Rigid stem + flexible
With thermocouple
Exposed capillary
Standard
ACCURACY CLASS
(ranges ≥ 100 bar/1500 psi)
bar
3550B35U
70 B07D
100 B01C
200
350 B35D
500 B05C
700
1000 B01M
1400 B14C
2000 B02M
0.25% FSO
0.5% FSO M
RANGE
B05D
B02C
B07C
Examples
2.5 mV/V
VERSION
CONNECTOR
6 pin 6
8 pin 8
psi
500
750
1000 P01M
1500 P15C
3000 P03M
5000 P05M
7500 P75C
10000 P10M
15000 P15M
20000 P20M
30000 P30M
2
3
0
1
2
3
H
P05C
P75D
M
000
000 = Standard version
Special or customized versions available on request
FLEXIBLE LENGTH
(mm / inches)
Standard (M30)
0
none
Standard (M31, M32)
D
457mm
610mmE
760mmF
Standard (M33)
L
711mm
Available on request
A
76mm
B
152mm
C
300mm
G
914mm
H
1067mm
I
1220mm
J
1372mm
K
1520mm
RIGID STEM LENGTH
(mm / inches)
Standard (M30, M31, M32)
4
153mm
318mm5
Standard (M33)
0
none
Available on request
1
38mm
2
50mm
3
76mm
6
350mm
400mm
7
8
456mm
THREAD
Standard
1
1/2 - 20 UNF
M18 x 1.54
18”
24”
30”
28”
3”
6”
12”
36”
42”
48”
54”
60”
6”
12.5”
1.5”
2”
3”
14”
16”
18”
M32-6-M-B07C-1-4-D-000
Melt pressure transducer with type “J” thermocouple, 3.33 mV/V output, 6-pin connector, 1/2-20UNF thread, 700bar full scale,
0.5 % accuracy class, 153 mm (6”) rigid stem, 457mm (18”) flexible capillary.
M20-8-M-P03M-1-4-0-000
Melt pressure transducer, rigid stem, 2.5 mV/V output, 8-pin connector, 1/2-20UNF thread, 3000psi full scale, 0.5 % accuracy
class, 153 mm (6”) rigid stem
Product designed and available in compliance with Directive 2011/65/EU (RoHS II) only for large-scale stationary installation or
industrial tools, or for B-to-B laboratory equipments for R&D purposes
GEFRAN reserves the right to make any kind of design or functional modification at any moment without prior notice.
DTS_M3_07-2017_ENG
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