IMPACT MELT PRESSURE TRANSMITTERS
I3
mV/V Output
The “IMPACT” series of Gefran, are pressure transmitters, without transmission fluid, for using in High temperature environment (350°C).
Medium pressure is transferred directly to the sensitive silicon element via a thick diaphragm.
Strain is transduced by a micro-worked silicon structure
(MEMS).
The operating principle is piezoresistive.
“IMPACT” is Gefran’s exclusive series of high-temperature pressure sensors that use the piezoresistive principle.
The main characteristic of “IMPACT” sensors is that they do not contain any transmission fluid.
The sensitive element, directly positioned behind the contact membrane, is realised in silicon through microprocessing techniques.
The micro structure includes the measurement membrane and piezoresistors.
The minimum deflection required by the sensitive element makes it possible to use very robust mechanics.
The process contact membrane can be up to 15 times thicker than the membrane used in traditional Melt sensors.
ADVANTAGES
- Total compatibility with the European RoHS Directive
- High strength
- Long life
- Working temperature: up to 350°C
- Excellent read stability over time
- Fast response time
MAIN FEATURES
• Pressure ranges:
0-100 to 0-1000 bar / 0-1500 to 0-15000 psi
• Accuracy: < ±0.25% FSO (H); < ±0.5% FSO (M)
• Standard threading 1/2-20UNF, M18x1.5; other versions on request
• Other types of diaphragms are available on request
• Autozero function on board / external option
• 15-5 PH stainless steel diaphragm GTP+ coated
AUTOZERO FUNCTION
All signal variations in the absence of pressure can be eliminated by using the Autozero function.
This function is activated by closing a magnetic contact located on the transmitter housing or by means of external autozero.
The procedure is permitted only with pressure at zero”.
The Autozero function should be activated ONLY when the sensor is completely installed on the system.
TECHNICAL SPECIFICATIONS
Accuracy (1)
Resolution
Measurement range
Maximum overpressure
(without degrading performances)
Measurement principle
Power supply
Imput impedance
Insulation resistance (at 50Vdc)
Output signal Full Scale FSO
H <±0.25%FSO
M <±0.5%FSO
16 bit
0..100 to 0..1000bar
0..1500 to 0..15000psi
1.5 x FS
(maximum pressure
1200bar/17400psi)
Piezoresistivo
8...12Vdc (10Vdc typical)
350 Ohm ± 10%
>1000 MOhm
2,5mV/V (option 2)
3,33mV/V (option 3)
“Autozero” function Zero signals adjustment
(tollerance ± 0.5% FSO)
Output impedance
Response time (10...90% FSO)
Output noise (RMS 10-400Hz)
Calibration signal
Output short circuit and supply reverse polarity protection
Supply from output protection
Compensed temperature range housing
Operating temperature range housing
Storage temperature range housing
Maximum diaphragm temperature
Zero signal variation due to process temperature variation in range (20-350°C)
Span signal variation due to process temperature variation in range
(20-350°C)
Std contact diaphragm with process
Thermocouple
( Model I32)
Protection degree
(with 6-pole female connector)
350 Ohm ± 10%
8ms
< 0.025% FSO
80% FSO
YES
YES
0...+85°C
-30...+85°C
-40...+125°C
350°C
< ± 1,2%FSO
< ± 1%FSO
15-5 PH GTP+
STD: Type “J” (isolated junction)
Type “K” (on request)
IP65
Electrical connection Conn. 6-pin VPT07RA10-6PT
(PT02A-10-6P)
FSO = Full scale output
(1) BFSL method (Best Fit Straight Line): includes combined effects of Non-
Linearity, Hysteresis and Repeatability.
MECHANICAL DIMENSIONS
I30
NOTE : dimensions refer to rigid stem length option “4” (153 mm – 6”)
WARNING : For installation use a maximum tightening torque of 40 Nm (355 in-lb)
10.9
[0.43
]
MECHANICAL DIMENSIONS
I31M
Max Temp.
220° C (428° F)
Max Temp.
220° C (428° F)
Max Temp.
220° C (428° F)
Max Temp.
220° C (428° F)
10.9
+0
-0.05
[0.43
+0
-0.002
]
NOTE : dimensions refer to rigid stem length option “4” (153 mm – 6”)
WARNING : For installation use a maximum tightening torque of 40 Nm (355 in-lb)
MECHANICAL DIMENSIONS
I31S
Max Temp.
220° C (428° F)
Max Temp.
220° C (428° F)
Max Temp.
220° C (428° F)
10.9
+0
-0.05
[0.43
+0
-0.002
]
NOTE : dimensions refer to rigid stem length option “4” (153 mm – 6”)
WARNING : For installation use a maximum tightening torque of 40 Nm (355 in-lb)
MECHANICAL DIMENSIONS
I32
Max Temp.
220° C (428° F)
Max Temp.
230° C (446° F)
Max Temp.
230° C (446° F)
10.9
[0.43
]
NOTE : dimensions refer to rigid stem length option “4” (153 mm – 6”)
WARNING : For installation use a maximum tightening torque of 40 Nm (355 in-lb)
ELECTRICAL CONNECTIONS mV/V Output
6 pin connector
VPT07RA10-6PT2
(PT02A-10-6P)
AUTOZERO FUNCTION
Shield drain wire is tied to connector via cable clamp
The Autozero function is activated through a magnetic contact (external magnet supplied with the sensor).
For the external Autozero version short-circuit the correct pin.
See the manual for a complete Autozero function explanation.
ACCESSORIES
Connectors
6-pin female connector (IP65 protection degree)
Extension cables
6-pin connector with 8m (25ft) cable
6-pin connector with 15m (50ft) cable
6-pin connector with 25m (75ft) cable
6-pin connector with 30m (100ft) cable
Other lengths
Accessories
Mounting bracket
Dummy plug for 1/2-20UNF
Dummy plug for M18x1.5
Drill kit for 1/2-20UNF
Drill kit for M18x1.5
Cleaning kit for 1/2-20UNF
Cleaning kit for M18x1.5
Fixing pen clip
Autozero pen
CON300
C08WLS
C15WLS
C25WLS
C30WLS on request
SF18
SC12
SC18
KF12
KF18
CT12
CT18
PKIT309
PKIT312
Cable color code
Conn. Wire
A Red
B Black
C White
D Green
E Blue
F Orange
OUTPUT SIGNAL
2,5mV/V 2
3,33mV/V 3
VERSION
Rigid stem 0
Rigid + flexible stem 1
With thermocouple 2
MECHANICS
Single fixed A
Modular fixed B *
Single Floating S
Modular Floating M *
* Not available for I30 and I32
versions
CONNECTOR
6 pin 6
ACCURACY CLASS
0.25% FSO H
0.5% FSO M
MEASUREMENT RANGE bar psi
20* B02D
35
50
70
B35U
B05D
B07D
100 B01C
200 B02C
350 B35D
500 B05C
700 B07C
300 P03C
500 P05C
750 P75D
1000 P01M
1500 P15C
3000 P03M
5000 P05M
7500 P75C
10000 P10M
1000 B01M 15000 P15M
* 10 bar (B01D) or 150psi
(P15D) for M18x1,5 version
I 000
000= Standard version
Special or customized versions available on request
E
-
External autozero
Magnetic autozero
FLEXIBLE STEM LENGTH
(L) (mm / inches)
D
E
F
457mm
610mm
760mm
18”
24”
30”
RIGID STEM LENGTH
(mm / inches)
4
5
153mm
318mm
Available on request
6”
12.5”
7
8
3
6
76mm
350mm
400mm
456mm
3”
14”
16”
18”
THREAD
Standard
1
4
1/2 - 20 UNF
M18 x 1.5
Example
I31S-6-M-B07C-1-4-D-000
Melt pressure transmitter without filling, 3,33mV/V output, 6-pin connector, 1/2-20 UNF threading, 700 bar pressure range, 0.5% precision level, 153 mm (6”) rigid stem, 457 mm (18”) flexible stem.
Sensors are manufactured in compliance with:
- EMC compatibility directive
- RoHS directive
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
Internet: http://www.gefran.com
DTS_I3_11-2016_ENG
