Explosion-proof temperature sensor PT100

The Ex temperature sensor PT100 is a USB temperature sensor. The module uses an external PT100 probe (not included*) to make instant temperature measurements, and can also record measures on a built-in flash memory to read them later on through USB. A PT100 probe is used to measure the temperature at any specific place, including in a liquid, with a very high stability and a high accuracy(sensibility up to 0.01°C and accuracy up to 0.03°C at 0°C when using a PT100 conforming to IEC 60751 DIN 1/10 B standard). It is particularly well suited for applications such as laboratory measurements, etc.

The Ex temperature sensor PT100 can be used with PT100 probes using 2, 3 or 4 wires. The type of connection is setup in software. To reach the highest accuracy, a 4-wire probe should be used. 3-wire probes are reasonably accurate and not too much affected by wire lengths, contrarily to 2-wire probes which are the least accurate and very sensitive to wire length.

The Ex temperature sensor PT100 features a built-in galvanic isolation between the USB control part and the PT100 measure circuit, enabling you to measure without risk the temperature of elements which would not have the same potential as the computer driving the Ex temperature sensor PT100.

*Note: Given the number of variants of PT100 probes and their prices, the Ex temperature sensor PT100 does not include any probe. The probe must be purchased separately at a specialized shop.

This device can be connected directly to an Ethernet network, to a WiFi network and to a GSM network using special adapters.

Note: To use the Ex temperature sensor PT100 in a hazardous area, the device must be protected to at least IP 65, so it must be placed inside the enclosure.

Ex temperature sensor PT100 don’t require any special drivers or software. Compatible with Windows, Mac OS, Android and Linux and easy to drive from a maximum of programming languages.

The Ex temperature sensor PT100 is connected through an industrial USB 2.0 connector to an intrinsically safe barrier Ex USB 2.0.

The Ex temperature sensor PT100 have a “hot-plug” function which allows them to be connected and disconnected without stopping, shutting down or rebooting the system.

Specifications:

USB connector: micro-B

Thickness: 10.1mm

Width: 20mm

Length: 55mm

Weight: 7g

Channels: 1

Refresh rate: 15Hz

Measuring range (T):-200...800°C

Accuracy: 0.03°C

Sensitivity: 0.01°C

USB isolation, dielectric strength (1 min.):1.5kV

Protection class, according to IEC 61140: class III

Supported Operating Systems: Windows, Linux, Mac OS, Android

Сompliance: IP 65, RoHS

Electrical Data:

Uo=5 V

Io=50 mА

Ui=5 V

Ii=50 mА

Ci=10 µF

Ex marking:

Ex ib I Mb

Ex ib IIC T6...T4 Gb X

Ex tb IIIC T85°C...135°C Db

Produced in accordance with IEC 60079-0, IEC 60079-11, IEC 60079-31

Normal operating temperature: 5°C to 40°C

Extended operating temperature*: -30°C to 85°C

*Note: The extended temperature range is defined based on components specifications and has been tested during a limited duration (1h). When using the device in harsh environments for a long period of time, we strongly advise to run extensive tests before going to production.