SMART3-R is developed to detect gases in non-classified areas, such as machinery rooms and laboratories.

A pellistor sensor detects flammable gases to achieve optimal accuracy and selectivity. Four smart LEDs illuminate the transparent ring to describe the detector status, and an internal buzzer is activated in alarm and fault conditions.

The SMART3-R gas detector has a standard 12-24 Vdc power supply, but a 220 Vac version can be supplied. The gas detector has three relay outputs, an RS485 serial communication and an analogue 4-20 mA output (not in the 220 Vac version).

The polycarbonate case has a global size of 130 x 130 x 74 mm. The box has two entries with M20 cable glands. Pre-formed guides can be drilled on the sides to add up to 6 M16 cable glands.

The gas detector can have a remote head connected with a RJ12 6P6C cable.

Sensor Part Number	Description
SMART 3-R – FLAMMABLE GASES (Catalytic sensor)
S4590ME	METHANE detector, 4-20 mA, 0-100% LFL
S4590GP	LPG detector, 4-20 mA, 0-100% LFL
S4590PR	PROPANE detector, 4-20 mA, 0-100% LFL
S4590BU	BUTANE detector, 4-20 mA, 0-100% LFL
S4590VB	PETROL VAPOURS detector, 4-20 mA, 0-100% LFL
ACCESSORIES for SMART 3-R & SMART 3-R LITE
STS/IDI	Plug-in RS485 interface enables SMART3NC detectors to communicate in Modbus protocol with MULTISCAN++S1, MULTISCAN 8+ & STPL4+D control panels
STS/CKD+	Enhanced calibration keypad with 7-digit display and SD-CARD slot for Zero, Span and 4-20 mA adjustments, with firmware update capability via SD card