Crowcon Sensitron Smart 3H Lite Gas Detector
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Crowcon Sensitron Smart 3H Lite Gas Detector
The Smart 3H Lite has been designed to monitor the refrigerant gases and carbon dioxide in hotels and residential areas.
The design aims to have a cost-effective product, thanks to the presence of a special infrared sensor.
Three intelligent LEDs that uniformly illuminate the semi-transparent crown constantly display the detector status.
The Smart 3H Lite gas detector is developed in two versions, one powered at 12-24 Vdc and one at 90-240 Vac; in both versions, there is an RS485 serial output and two relays.
The housing is made of polycarbonate and has an IP42 degree of protection.
Order Information
SMART 3-H LITE – Refrigerant Gases (Infrared Sensor)
Range: 0–20% LFL
| Part Number | Description | Alarm Thresholds |
|---|---|---|
| S3843R32 | R32 DIFLUOROMETHANE detector | 5% & 10% LFL |
| S3844R1234YF | R1234yf detector | 5% & 10% LFL |
| S3845R1234ZE | R1234ze detector | 5% & 10% LFL |
| S3848R454A | R454A detector | 5% & 10% LFL |
| S3849R454B | R454B detector | 5% & 10% LFL |
| S3850R454C | R454C detector | 5% & 10% LFL |
| S3851R452B | R452B detector | 5% & 10% LFL |
Range: 0–5000 ppm
| Part Number | Description | Alarm Thresholds |
|---|---|---|
| S3846R134A | R134a detector | 1000 & 2000 ppm |
| S3847R410A | R410A detector | 1000 & 2000 ppm |
| S3854R32 | R32 detector | 1000 & 2000 ppm |
| S3855R404A | R404A detector | 1000 & 2000 ppm |
| S3856R407C | R407C detector | 1000 & 2000 ppm |
| S3857R1234YF | R1234YF detector | 1000 & 2000 ppm |
| S3858R1234ZE | R1234ZE detector | 1000 & 2000 ppm |
| S3859CO2 | CO2 detector | 1000 & 2000 ppm |
Calibration Tools
| Part Number | Description |
|---|---|
| STS/CKD+ | Enhanced calibration keypad with 7-digit display. It can be connected to SENSITRON’S SMART detectors to adjust the Zero, Span and 4–20 mA values. |
| Application | Hotel and residential |
| Sensing element | Infrared |
| Predicted sensor life | >5 years |
| Gas detected | R32, R1234YF, R1234ZE, R454A, R454B, R454C, R452B, R134A, R410A, R404A, R407C, CO2 |
| Fullscale | 0-20% LFL 0-5000 ppm |
| Alarm thresholds | 5 e 10% LFL 1000 e 2000 ppm |
| Power supply | 12-24 Vdc or 90-240 Vac |
| Signal output | 2 relays; RS485 serial output |
| Power consumption | 150 mA at 24 Vdc |
| Relays contact rating | 1.0 A at 30 Vdc |
| Optical indications | 3 smart LEDs |
| Acoustic indications | Buzzer 70 dB |
| Hall effect sensor | Yes, for buzzer silence |
| Material | Polycarbonate |
| Dimensions | D: 95.5mm H:52.5 mm |
| Weight | 200 g |
| Cable entries |
Lateral entry: pre-formed guide that can be drilled for M16 fairlead (supplied with the gas detector) Entry on the bottom: 10 mm hole. |
| IP grade | IP42 |
| Storage temperature | -40 / +85°C |
| Operating temperature | -10 / +50°C |
| Operating humidity | 0 / 95% RH non condensing |
| EMC | EN 61000-6-3:2007 + A1:2011; EN 50270:2015 |
| Refrigeration Standards | EN 378-3; EN 14624; EN 50676; IEC 60335-2-40 Annex LL; ISO 5149-3; F-Gas Regulation |
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