Refrigerant Sensor – Sensitron Smart 3-R

Features:

Self-diagnostic procedures to control the hardware and sensor correct operation.

Zero follower to maintain the detector zero point, from possible drifts caused by thermal or physical variations of the transducer.

Digital filter, employed in the digital analysis of the analog values sampled, this filter corrects temporary phenomena from causing reading errors or false alarms.

Hysteresis cycle: applied to the outputs associated to the alarm thresholds, it prevents continuous output switching when close to the threshold values.

• The SMART3-R detectors offer a fast and failsafe installation as well as an easy maintenance and calibration routine via the handheld keypad STS/CKD.

Applications:

  • Industrial
  • Machinery
  • Refrigerant

Overview:

The SMART3-R (with LED indication) gas detectors are ideal for non-classified areas. They employ high quality catalytic, MOS sensors, electrochemical cells or infrared sensors, that grant an excellent linearity and accuracy, besides an estimated lifetime of four years for detectors with infrared or pellistors sensors and two years for electrochemical cell sensors. The SMART3-R gas detectors provide a proportional 4-20mA output signal. By employing optional boards, they can either communicate on a serial bus RS 485 or provide relay outputs. In details, the available outputs are as follows:

• 4-20 mA. Proportional 4-20mA output current corresponding to the full range (LEL or ppm).

• Relay. By adding the STS3REL board, the unit is provided with 3 relays with voltage free changeover contacts. One relay is dedicated to the Fault and Watch-dog, while the remaining two relays can be associated to two out of the three available alarm thresholds.

• Serial RS485. By adding the STS.IDI interface, the detector can communicate on RS485 bus with MULTISCAN+ + gas control panels.

Specifications:

Typical use Detectors for use with Sensitron control panels to detect refrigerant gases. To be used in non-classified areas only.
Power supply

 

12-24 Vdc (-20% +15%)

 

Proportional output 4-20 mA

 

Detectable gases Halogenated refrigerant and mixtures

 

Ammonia (flammable LFL)

 

Ammonia (toxic ppm)

 

SF6

 

Sensing element employed

 

Infrared sensor or MOS

 

Catalytic sensor

 

Electroch. Cell or MOS

 

Infrared sensor

 

Range

 

0-2000 ppm 0-100% LFL (A2L) 0-100 ppm (F-gas)

 

0-100% LEL

 

0-100 ppm 0-200 ppm 0-1000 ppm

 

0-2000 ppm

 

Repeatability

 

5% FS

 

Operating temperature

 

-40 / + 60 °C (-30 / + 50 °C for ammonia EC)

 

Relative humidity

 

20-90 % non-condensing RH/40°C

 

IP rating

 

IP54

 

Compliances

 

EN 378-3 :2016 and F-Gas EC 517 :2014 EN 14624 :2012

 

Downloads:

Specifications:

Overview

Overview:

The SMART3-R (with LED indication) gas detectors are ideal for non-classified areas. They employ high quality catalytic, MOS sensors, electrochemical cells or infrared sensors, that grant an excellent linearity and accuracy, besides an estimated lifetime of four years for detectors with infrared or pellistors sensors and two years for electrochemical cell sensors. The SMART3-R gas detectors provide a proportional 4-20mA output signal. By employing optional boards, they can either communicate on a serial bus RS 485 or provide relay outputs. In details, the available outputs are as follows:

• 4-20 mA. Proportional 4-20mA output current corresponding to the full range (LEL or ppm).

• Relay. By adding the STS3REL board, the unit is provided with 3 relays with voltage free changeover contacts. One relay is dedicated to the Fault and Watch-dog, while the remaining two relays can be associated to two out of the three available alarm thresholds.

• Serial RS485. By adding the STS.IDI interface, the detector can communicate on RS485 bus with MULTISCAN+ + gas control panels.

Specifications

Specifications:

Typical use Detectors for use with Sensitron control panels to detect refrigerant gases. To be used in non-classified areas only.
Power supply

 

12-24 Vdc (-20% +15%)

 

Proportional output 4-20 mA

 

Detectable gases Halogenated refrigerant and mixtures

 

Ammonia (flammable LFL)

 

Ammonia (toxic ppm)

 

SF6

 

Sensing element employed

 

Infrared sensor or MOS

 

Catalytic sensor

 

Electroch. Cell or MOS

 

Infrared sensor

 

Range

 

0-2000 ppm 0-100% LFL (A2L) 0-100 ppm (F-gas)

 

0-100% LEL

 

0-100 ppm 0-200 ppm 0-1000 ppm

 

0-2000 ppm

 

Repeatability

 

5% FS

 

Operating temperature

 

-40 / + 60 °C (-30 / + 50 °C for ammonia EC)

 

Relative humidity

 

20-90 % non-condensing RH/40°C

 

IP rating

 

IP54

 

Compliances

 

EN 378-3 :2016 and F-Gas EC 517 :2014 EN 14624 :2012

 

Downloads

Downloads:

Specifications:

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