Part no.: X118
• ATEX/IECEx approved to: Ex II 1G : Ex ia IIC T4 GA (Ta = -40°C to +80°C)
• Sensor Mounting: Flange or body clampsSpring loaded pushrod option available
• Available in any measurement range from 0-2mm to 0-50mm(for 51-100mm range see P138)
• Sealed to IP67
The intrinsically safe X118 is ATEX and IECEx approved for use in potentially explosive gas/vapour atmospheres. The X118 is designed for a wide range of industrial applications and is ideal for OEMs seeking good sensor performance in situations where a short-bodied sensor is required for operation in hazardous areas. The unit is compact and space-efficient, being responsive along almost its entire length, and like all Positek® sensors provides a linear output proportional to displacement. Each unit is supplied with the output calibrated to the travel required by the customer, from 0-2mm to 0-50mm and with full EMC protection built in. Overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor has a rugged stainless steel body and plunger. It is easy to install and set up, mounting options include flange and body clamps. The plunger can be supplied free or captive, with female M4 thread, or spring-loaded with a ball end. The X118 also offers a wide range of mechanical options, environmental sealing is to IP67.
Positek intrinsically safe sensors are designed to be used with a galvanically isolated amplifier. Approved galvanic isolation amplifiers (X005) are available from Positek; there is a choice of 0.5-9.5V or 4-20mA transmission outputs.
The sensor can be installed with a cable length up to 1km between the sensor and the amplifier.
SSI hardware is fairly simple. Just use any RS-422 transceiver to generate the differential signals from/to the microcontroller port pins. Keep reading to learn about the different implementations of SSI hardware.
Despite their perceived simplicity, potentiometers can still be an appropriate option in today’s ever-complicated automation industry. Fundamentally a variable resistor, modern potentiometers also offer more traditional outputs such as voltage and current which are common to more expensive sensors.
For maximum endurance and payload transportation capacity many UAV manufacturers turn to ICE (Internal Combustion Engine) powered flight. Electric propulsion has its place, but for maximum energy density batteries are not currently at the level of modern fossil fuels.
In this example, the switch point has been set to ‘Full Alarm’. By setting the switch point to 90% with an 80% hysteresis, the switch will come on at 90% and switch off at 10%.