Gefran I3 SERIES Data Sheet
IMPACT MELT PRESSURE TRANSMITTERS
I3 SERIES mV/V Output
“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.
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.
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
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)
Electrical connection
FSO = Full scale output
(1) BFSL method (Best Fit Straight Line): includes combined effects of NonLinearity, Hysteresis and Repeatability.
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
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
Conn. 6-pin VPT07RA10-6PT
(PT02A-10-6P)
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
-0.05
[0.43
+0
-0.002
]
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)
+0
+0
]
-0.05
[0.43
-0.002
10.9
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)
Loading...