ELE-801G3 High Temperature Pressure Transmitters

Description

Pressure monitoring for hot process media

The ELE-801G3 uses a diffused silicon sensor and a finned cooling section for pressure measurement at medium temperatures up to 200°C. It supports water, gases, oils and hydraulic fluids that are compatible with the wetted materials. Applications include high-temperature pipelines, chemical process equipment, thermal systems and industrial fluid-power equipment.

The curved heat-sink structure separates the hot process connection from the sensing electronics. Automatic temperature compensation and linear correction condition the output signal. Each transmitter undergoes aging tests and calibration at zero, midpoint and full scale.

Specifications and model choices

ParameterELE-801G3ELE-801SG3 / ELE-801SG digital version
Sensor principleDiffused silicon
Media temperature0°C to 200°C
Selectable range bands±200–800Pa; -100–900kPa; 1–100MPa, selected by configuration
Pressure referenceGauge or absolute
Accuracy options0.5%FS standard; ±0.2% or ±0.5% configurations available
OutputsTwo-wire 4–20mA; three-wire 0–5V or 0–10VDC; four-wire RS485
Supply for 4–20mA10–30VDC
Supply for 0–10V12–30VDC15–30VDC
Electrical connectionHirschmann connector
Process thread optionsMale M20×1.5, G1/4, G3/8, G1/2, NPT1/4, NPT3/8 or NPT1/2; customization available
Wetted material compatibilityLiquids and gases compatible with 304 stainless steel
Diaphragm316 stainless steel, silicone-oil-filled sensing assembly
Overload1.5× full scale as standard; special versions can be customized
Pressure port3mm port with damping element
ProtectionIP65
LCDNone4 digits as standard

Choose the pressure span, output and supply as one configuration. The digital model adds local pressure indication to the cooled transmitter body.

Cooling and sensing construction

Finned heat sink on the ELE-801G3 pressure transmitter
The cooling section reduces heat transfer from the process connection.
Diffused silicon sensor and stainless steel diaphragm details
The sensing assembly combines a silicon core, stainless steel diaphragm and silicone oil.
ELE-801G3 damping element and threaded pressure connection
The threaded connection incorporates a damping element and a 3mm pressure port.

Reference dimensions

The following dimensions describe the illustrated 801G3 construction. All values are in mm.

DimensionELE-801G3ELE-801SG3
Connector height39.542
Display section heightNot fitted51.5
Body diameter26.5
Main body length63
Heat sink / hex section64
Hex size27
Thread length20

Electrical connection

For a two-wire 4–20mA version, pin 1 is loop positive and pin 2 is loop negative. Use either a powered indicator or a separate 24VDC supply in the series loop. For a three-wire voltage version, pin 1 is supply positive, pin 2 is common negative and pin 3 is signal positive. The English attachment includes these circuits and the configuration-specific RS485 assignment.

Match the actual nameplate and connector markings before connection. The 200°C rating applies to the selected high-temperature sensing construction; keep the electronics within their configured operating conditions and allow the cooling section to dissipate heat.