Gefran Melt Pressure Transmitters

Product Description

• Fluid-filled system for temperature stability
• Mercury filling volume: ME0 (30mm3); ME1, ME2, ME3 (40mm3)
• 1/2-20UNF, M18x1.5 standard threads; other types 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

• 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.
• The Autozero function is activated through a magnetic contact (external magnet supplied with the sensor).
• See the manual for a complete Autozero function explanation.

• 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).

• The diagram shows the optimum ratio between the load and supply voltage of the 4...20mA transmitter.
• For a correct use, choose any combination of load resistance and supply voltage, in the shaded area.

• Melt pressure transmitter with type J thermocouple, 4...20mA output, 6-pin connector, 1/2-20UNF thread, 700 bar full scale, 0,5% accuracy class, 153 mm (6) rigid stem, 457mm (18) flexible capillary.

• Melt pressure transmitter autocompensated version, rigid stem, 4...20mA output, 6-pin connector, 1/2-20UNF thread, 3000 psi full scale, 0,5% accuracy class, 153 mm (6) rigid stem.

Additional Information:

• Item Code: ME-Series