5100-02-IT Macurco Combustible Gas Sensor Module

5100-02-IT Macurco Combustible Gas Sensor Module
Item# AER_5100-02-IT-A1-02

Product Description

The 5100-02-IT Combustible Gas Sensor Module is a key member of the powerful Sierra Monitor IT Series family of gas sensor modules. The 5100-02- IT provides the features needed by safety and instrumentation engineers including: • 180 day calibration interval • FM Approval for performance and safety • SIL-2 certified • Modbus RTU RS-485 interface • 4-20 mA output • HART Interface • SMC Sentry digital bus interface • ATEX Certified • Optional Integral and Trouble alarm relays – Alarm, Warning • Aluminum or 316 Stainless Steel enclosure • Non-intrusive calibration • Integral scrolling LED display • Optional remote sensor • Remote alarm reset capable Model 5100-02-IT utilizes the proven, reliable, catalytic bead technology to monitor for combustible gases (methane and others). Output range is 0- 100% of Lower Explosive Limit (LEL). This detector has minimal maintenance requirements and is Factory Mutual approved for six month calibration intervals. Internal, continuous self-diagnostics automatically detect and alarm any fault problems. The 5100-02-IT can be used as a 4-20 mA component or as a Modbus RTU node. For higher level system capability the module can interface directly to Sierra Monitor’s Sentry Controller enabling system level Modbus serial communications, area and zone alarm management, extensive system diagnostic features, WebServer interface, and multiplexing sensor connections. Factory Mutual (FM) Approval for performance, electrical safety and environmental parameters including Class I, Div. 1, Groups B, C, D and Class I, Zone 1, Group IIC, IP66. With a NEMA-4X enclosure standard, approved multiplexing, and approved six month calibration interval, cost of ownership is minimized at the acquisition, installation and operating stages How It Works Catalytic Bead gas sensors detect gas by comparing the resistance of two heated elements. One element is catalytic to enhance the burning of combustible gases, the other element is passive. Electronic circuits are used to compare the change in the catalytic bead resistance relative to the passive bead. The relative change is calibrated to determine the concentration of the gas of interest.


Sensor type: Catalytic Bead.

Performance: Repeatability: +/-1% LEL. Response Time: T60<10sec Calibration freq: 180 days. Accuracy: +/- 1% for 0-50% LEL range +/- 2% for 51-100% LEL range.

Output: Display: Fixed and Scrolling LED. Signal Output: Sentry digital bus. Analog 4-20 mA. 3-wire Non-Isolated. 4-wire Isolated. Serial RS-485 Modbus RTU. Relay : Optional.

Options: Relays: 5 amp Alarm, Warning (0.25 amp Trouble) 5A@ 250 VAC, 5A@ 30VDC (Alarm, Warning). Board includes auxiliary connection for Sentry multiplexing. HART: Termination board includes HART, Modbus RS- 485, 4-20mA, Digital Input, 2A Relay output, No Sentry Bus.

Power: Power consumption: 3 watts max. Input voltage: 24 VDC nominal: 10-30VDC. RFI/EMI Protection: EN50081-2, EN50082-2.

Operating Range: Ambient Temp Range: -40o to 176oF (-40o to 80oC). Relative Humidity: 0-99% Non-Condensing.

Construction: Dimensions: (H x W x D) (A1 & A2) 6.9 x 5.7 x 3.9 in. (17.5 x 14.5 x 9.9 cm) (S1 & S2) 7.5 x 5.0 x 4.4 in. (19 x 13 x 11 cm) Weight: (A1 & A2) 3.4 lb. (1.5 Kg) (S1 & S2) 7.2 lb. (3.3 Kg) Housing: Epoxy coated Aluminum or 316 Stainless Steel Hazardous Area Classification: Explosion proof, Class I, Div. 1, Groups B, C, D Class I, Zone 1, Group IIC, IP66, IP65, NEMA 4X. II2 GD, Ex d IIC T6 = -40oC to 85oC.

Warranty: 2 years

Approvals: FM Approval 6320 Combustible Gas Detector Performance. FM Approval 3600 Class I Div. 1, Groups B, C, D. SIL-2 Certified Certified by Lloyd's Register (IEC 61508). ATEX Certified II 2G, Ex d IIB + H2 T5 Gb. CE Marked Certificate of Approval. CSA For enclosure in hazardous locations. ABS Certificate of Compliance. CQST Certificate for China.