Gefran SERIES AND PLc VERSION Data Sheet
IMPACT MELT PRESSURE TRANSMITTERS IE
SERIES AND PLc VERSION 4-20mA 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 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 electronics or by an external
contact.
The procedure is allowed only at zero pressure.
The Autozero function should be activated ONLY when the
sensor is completely installed on the system.
TECHNICAL SPECIFICATIONS
Accuracy (1)
Resolution 16 Bit
Measurement range
Maximum overpressure
(without degrading performances)
Measurement principle Piezoresistive
Power supply 13...30Vdc
Maximum current absorption
Output signal Full Scale FSO 20mA
Zero balance
(tollerance ± 0.25% FSO)
Zero signals adjustment
(tollerance ± 0.25% FSO)
Response time (10...90% FSO) 8ms
Output noise (RMS 10-400Hz) < 0.025% FSO
Calibration signal 80% FSO
Supply reverse polarity protection Yes
Compensed temperature range housing 0...+85°C
Operating temperature range housing -30...+85°C
Storage temperature range housing -40...+125°C
Maximum diaphragm temperature 350°C / 660°F
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 15-5 PH GTP+
Thermocouple (model IE2)
Protection degree
(with 6-pole female connector)
Electrical connection
FSO = Full scale output (1) BFSL method (Best Fit Straight Line):
includes combined effects of Non-Linearity, Hysteresis and Repeatability.
H <±0.25%FSO
M <±0.5%FSO
0..100 to 0..1000bar
0..1500 to 0..15000ps
1.5 x FS (maximum pressure
1200bar/17400psi)
23 mA
(40 mA with optional relay)
4mA
“Autozero” function
< ± 1,2%FSO
< ± 1%FSO
STD: type “J” (isolated junction)
type “K” (on request)
IP65
Conn. 6-pin VPT07RA10-6PT
(PT02A-10-6P) Conn. 8-pin
(Binder) M16 DIN/EN45326
(09-0173-00-08)
MECHANICAL DIMENSIONS
10.9
+0
-0.05
[0.43
+0
-0.002
]
IE0
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
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
]
IE1M
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)
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