Part no.: E112
• ATEX/IECEx approved to: Ex II 1G : Ex ia IIC T4 GA (Ta = -40°C to +80°C)
• Sensor Mounting: 1/2" UNF ThreadSpring loaded plunger
• Available in any measurement range from 0-5mm to 0-50mm
• Sealed to IP67
The intrinsically safe E112 is ATEX and IECEx approved for use in potentially explosive gas/vapour and dust atmospheres. It is designed for gauge head positioning in industrial and scientific applications and is ideal for OEMs seeking good sensor performance for arduous applications in hazardous areas. The E112, like all Positek sensors, provides a linear output proportional to displacement. Each sensor is supplied with the output calibrated to the travel required by the customer, from 0-5mm to 0-50mm and with full EMC protection built in.
Overall performance, repeatability and stability are outstanding over a wide temperature range. The sensor is very robust, the body and plunger being made of stainless steel for long service life and environmental resistance.
The plunger is spring loaded with a domed end. The E112 is easy to install with a long ½ inch UNF mounting thread and is supplied with two lock nuts for positioning. 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.
"*" indicates required fields
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%.
With the increasing sophistication of electronic controls for mechanical systems, there is more demand for durable, accurate and easy to use displacement sensors. As automation becomes more common there is also an increasing sensitivity to price. Customers also want sensors that can be easily connected and mechanically integrated.
Recently, obtaining the Inductosyn and components for maintenance has become more difficult. For decades the Inductosyn from Farrand Controls / Ruhle Companies sat near the top of the rotary sensor hierarchy. Providing sub 2 arcsec (0.5 mdeg) accuracies, it combined the robustness of a resolver with the performance of the best optical encoders. Despite its shortcomings, it found plenty of customers, from airborne infrared and radar systems, to telescopes, satellite communication antennae (SATCOM), machine tooling and low-pressure vacuum chambers.
POSITAL has introduced an inexpensive and flexible alternative for safety-critical motion control systems. When combined with functional safety PLCs, these devices are suitable for applications that are required to conform to Performance Level/ PL d, Cat. 3, according to ISO 13849.