Sensors are fundamental elements in the control of industrial processes. We design and produce sensors for measuring such variables as temperature, pressure, position, force and humidity.

All primary sensing elements are manufactured by Gefran in its own clean room, environments that are protected from all types of interference and equipped with high-tech operating and control instruments.

Moisture Veridri

The VeriDri moisture transmitter provides dryer manufacturers and other OEMs with the means to make simple, accurate and reliable moisture measurement of their gas at a competitive price.
VeriDri is a loop-powered 4 to 20 mA output transmitter, offered in a number of factory-configured output ranges covering an overall moisture range of -130°F to 70°F or -110°C to 20°C dew point temperature. It is also available in a number of PPMv moisture output ranges with an overall range of 0 to 10,000 PPMv moisture, when operating at a constant pressure. Operating pressure information must be provided to the factory at the time of order placement.
Applications
VeriDri is a loop-powered dew point temperature or PPMv moisture transmitter intended for OEM applications such as:
• Regenerative desiccant air or gas dryers
• Plastic drying applications
• Medical air dryers
• Glove box monitoring

Features
• Low-cost
• Thin-film aluminum oxide moisture sensor technology
• Microprocessor-based, all-digital technology for reliable operation
• Compact size
• Type 4X/IP67
• Loop-powered 4 to 20 mA output
• -130°F to 70°F (-110°C to 20°C) dew point temperature/0 to 10,000 PPMv moisture (with constant pressure) overall range capability
• National Institute of Standards and Technology

Moisture Veridri Sensors

Vibration Sensor

General purpose accelerometer that meets API 670 requirements.  Designed for use on a wide variety of machine types with its broad frequency response of 0.5 to 10 kHz (+/- 3dB), 50g range, and mounted resonance of 13 kHz

Applications:
· Motors
· Gear Boxes
· Paper Machines
· Process Pumps
· Cooling Tower Fans
· Rotor Blade Pass Sensing
· Turbocharger Engine Vibration
· Gas Turbines
– Aero & Marine Derivative
– Industrial Frames
· High-Temp Furnace Fans
· Hot oil pumps

Features

  • High-accuracy and repeatability yet priced within budget
  • Eliminate false indications caused by high frequency
  • noise rectified as low frequency using patented anti-ski slope technology
  • Highest accuracy and widest frequency response
Accelerometer Vibration Sensor

Velocity Sensor

Applications:
· Cooling Towers
· Motors
· Pumps
· Fans
· Engines
· Blowers
· Gear Boxes
· Large Industrial
Gas Turbines
· Furnace Fan
Monitoring
· Hazardous Areas

Features

· Replace a moving coil velocity transducer with this solid-state sensor
· Consists of a temperature stabilized piezoelectric sensor and amplifier packaged in stainless steel case
· Immune to cross axis vibration, mount in any axis
· Provides high-level, low impedance output for connection to a 4-20 mA transmitter

Vibration Sensor

High Temperature / Frequency Sensor

Features

  • Provide accurate, repeatable vibration measurements
  • over wide ranges of amplitude and frequency by employing
  • zero friction coil suspension
  • Self-generating, no power required
  • Stainless steel housing
  • Constructed for continuous operation at elevated temperatures
Vibration Sensor

Temperature Sensor

Thermocouple Sensor

B, E, J, K, N, R, S, T, W, …types
Heads : B, DAN, DANW, MA, … types and Ex d housings
Process connection : fixed, sliding, by flange or sanitary type.
Options : removable probe, lagging extension

Thermocouple Temperature Sensor

RTD

RTD are temperature transmitters that are loop-powered. The transmitters are suitable for use in measuring temperatures ranging from -200 °C up to 2,300 °C. The models utilize either a TC, resistance, or RTD 100 for their input signal, and their output signal ranges from 4 mA up to 2 mA.

Resistance probes :
• RTD100, RTD1000, Ni100,…
• 2, 3, 4-wires technology (for RTD)
• Simple or double type
• Accuracy Class : A or B according to IEC751

RTD Temperature Sensor

Pressure Sensor

Operating principle : the distortion under pressure of a sensitive element results in resistance fluctuations of a WHEATSTONE strain gauge bridge.
Operating principle : the distortion under pressure of a sensitive element results in resistance fluctuations of a WHEATSTONE strain gauge bridge.
uses two technologies for their sensors, i.e. strain gauges with thick layer coating on a ceramic base plate as well as silicium semiconductor strain gauge.uses two technologies for their sensors, i.e. strain gauges with thick layer coating on a ceramic base plate as well as silicium semiconductor strain gauge.

Industrial Pressure Sensor

relative, differential, absolute pressure

Ranges:
» From -1 to 1000 bar (relative pressure)
» From 0 to 90 bar (differential pressure)

 

Version : relative and absolute pressure
Thick enameled strain gauge on ceramic
0.4…+400 bar
4-20 mA – 2 wires signal
Global error : 0.2 % F.S.
Origin and span adjustment
Options :
Flush diaphragm
Cable output or stainless steel head
Intrinsically safe ATEX
Rangeability
Reinforced maximum pressure

Industrial Pressure Sensor

Flush Pressure Sensor

Key benefits :
Food and pharmaceutical compatibility
No fluid retention area
No fluid pollution risk (no filling liquid)
Direct detection of cell breaking

Flush Pressure Sensor

Automotive Pressure Sensor

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