Neuron Dry Contact

General Description

The Neuron Dry Contact sensor is an electronic device that detects the presence or absence of electrical contact in potential-free loops.

The sensor is designed to be used in a wide range of industrial and commercial applications, automation systems, and process maintenance. They are typically used to detect the position of mechanical parts, such as doors, valves, and machine components.

The Neuron Dry Contact sensor has a wide operating range from -40 – 85 °C and has a robust IP67 enclosure for mounting in rough conditions.

The sensor has an integrated battery which will last up to 10 years**.

Principle of Operation

The Neuron Dry Contact consists of a pair of wires that measures the electrical potential between them. When the two wires are connected through the valve, door or similar, an electrical circuit is completed, signalling that the contact has been activated. Conversely, when the contact points are separated, the circuit is open, signalling that the contact has been deactivated.

Every three second the sensor measures the loop contact and if the loop status has changed since the last transmission, the sensor reports immediately. Otherwise, it reports every 2 minutes.

Features

Integrated long life battery – up to 10 years lifetime

Continuous measurement and instant alarm

Adjustment of parameters such as measurement frequency on request

Define your own alarm levels in the Neuron app

Receive alerts as push notifications, emails or SMS

Easily connect the sensor to the system with the QR- code on the sensor. Ensures immediate and accurate registration in the app on your phone/PC/tablet

The sensor transmits data to your nearby Neuron Gateway which then again communicates with the Neuron Cloud

Neuron system benefits

Robust sensors
Suitable for rough environments
Wireless
Wireless sensor with integrated battery
Long lifetime
Typical 10 years battery life
Quick installation
Wireless, installed and operational in minutes
Collect and deliver data
Data delivery through API and app
Broad offering
More than 50 different sensor types available

Operational specification

Measuring range***:
Open/Closed Loop

Measuring Frequency*:
Every 3 sec

Report Frequency*:
Reports every 2 min. Or immediately if trigger for critical data transmission is reached, see below

Trigger for Critical Data Transmission*:
Change in status open/closed loop

Operating Environment:
Ambient temperature: -40 – 85 °C
Relative humidity: 0-100%
Altitude: < 2000m above sea level
Pollution degree: 4

IP Grade:
IP 67, wet conditions, indoor use

Radio Frequency:
863-870 MHz / 902-928 MHz

Battery Type:
Li-SOCl2, 3.6V

Expected Operating Time**:
Up to 10 years

* Adjustable on request
** Depends on measurement frequency, amount of critical data transmissions and ambient temperature
*** Applying a voltage over the inputs may permanently damage the device

Physical specification

Materials:
POLYblend 65 FS / TPU

Connection Type:
2 x 40 cm RADOX 155 0.25 mm²

Dimensions LxWxH:
37x23x14mm

Regulatory

Certifications:
CE marking
UK CA
FCC
Industry Canada

Directives/Standard:
IEC 61010-1:2010
FCC Part 15C
RED 2014/53/EU Radio
Equipment Regulations 2017

Installation

Place elevated with distance to fixed objects

Keep antenna clear off the metallic surface

Neuron sensors are ready for use out of the box and will start logging data after registering the sensor in the app. Even though Neuron sensors deliver great range and long battery life, following some simple guidelines for mounting of the sensor and gateway can greatly improve signal coverage and lifetime of the sensor.

To ensure optimal antenna performance and signal strength, the sensor should be placed elevated with some distance to fixed objects. Keep in mind that RF-signals are greatly affected by close metallic surfaces.

For sensors with an external antenna, the antenna should be clear off the metallic surface.

For sensors operating in environments with greatly varying temperatures, care should be taken to avoid putting the sensor in unnecessary stress. Very high or low temperatures will affect the battery life and the signal strength of the sensor. While some sensors must be close to the source of heat or cold, other sensors have external probes which allow the sensor to be placed at a distance..

Fastening
The small, compact blue Neuron sensors are fitted with fastening holes for use with cable ties. The sensors are also delivered with double-sided tape that may be used for fastening of the sensors.

All the black Neuron sensors, like the Neuron IR380 and Neuron Vibration, are fitted with a strong magnet at the back for easy fastening. If there is no magnetic surface, then double-sided tape is a good solution.