| Customization: | Available |
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| Type: | Inductive Pressure Sensor |
| Component: | Mechanical Structure Type |
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Melt Pressure Transmitters
MN Series
The MN series 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 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: MN0 (30mm3 ); MN1, MN2, MN3 (40mm3 )
• 1/2-20UNF, M18x1.5 standard threads; other types available on request
• Other diaphragms available on request
• Autozero function on board / external option
• Drift Autocompensation function (SP version)
• Standard diaphragm is 15-5 PH stainless steel with GTP coating
• 17-7 PH corrugated diaphragm with GTP coating for ranges below 100 bar-1500 psi
GTP (advanced protection): Coating with high resistance against corrosion, abrasion and high temperature
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.
The procedure is permitted only with pressure at zero.
AUTOCOMPENSATES INFLUENCE OF MELT TEMPERATURE
Thanks to internal self-compensation, the MSP series transmitter cancels the effect of pressure signal variation caused by variation of Melt temperature.
This reduces at the minimum the read error caused by heating of the filling fluid (typical of all sensors built with "filled" technology).
| Accuracy (1) | H <±0.25%FSO (100...2000 bar) M <±0.5%FSO (35...2000 bar) |
| Resolution | Infinite |
| Measurement range | 0..35 to 0..2000bar 0..500 to 0..30000psi |
| Maximum overpressure (without degrading performances) |
2 x FS 1.5 x FS above1000bar/15000psi |
| Measurement principle | Extensimetric |
| Power supply | 15...30Vdc N, C 10...30Vdc B, M -15...+15Vdc H, L |
| Maximum current absorption | 25mA |
| Isolation resistance (at 50Vdc) | >1000 MOhm |
| Output signal Full Scale (FSO) | 5Vdc (M, H) - 10Vdc (N, L) 5,1Vdc (B) - 10,1Vdc (C) |
| Zero balance (tollerance ± 0.25% FSO) |
0Vdc (M, N, H, L) 0.1Vdc (B, C) |
| Zero signals adjustment (tollerance ± 0.25% FSO) |
"Autozero" function |
| Span adjustment within ± 5% FSO | See Manual |
| Maximum allowed load | Maximum allowed load |
| Response time (10...90% FSO) | ~ 1ms |
| Output noise (RMS 10-400Hz) | < 0.025% FSO |
| Calibration signal | 80% FSO |
| Output short circuit ingress and reverse polarity protection | YES |
| Compensated temperature range | 0...+85°C |
| Operating temperature range | -30...+105°C |
| Storage temperature range | -40...+125°C |
| Thermal drift in compensated range: Zero / Calibration / Sensibility | < 0.02% FSO/°C |
| Diaphragm maximum temperature | 400°C / 750°F |
| Zero drift due to change in process temperature (zero) | 0.02 bar/°C |
| Zero drift temperature for Autocompensated version (SP) within the temperature range 20°C-400°C inclusive the drift temperature of the housing |
< 0.003 bar/°C 100 ≤ p < 500 bar 0.0014 %FS/°C p ≥ 500 bar |
| Standard material in contact with process medium | Diaphragm: • 15-5 PH with GTP coating • 17-7 PH corrugated diaphragm with GTP coating for ranges <100 bar (1500psi) Stem: • 17-4 PH |
| Thermocouple (model MN2) | STD : type "J" (isolated junction) |
| Protection degree (6-pole female connect) | IP65 |
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