Fixed Type Gas & Flame Detection

Catalytic Bead Gas Sensor Module 5100-02-IT

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) and UL 2075 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

Sensor type: Catalytic Bead

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

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 RS485, 4-20mA, Digital Input, 2A Relay output, No Sentry Bus
Remote Sensor: Up to 50 feet (15.2m)

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 176o F (-40o to 80o C)
Relative Humidity: 0-99% Non-Condensing

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)
(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 = -40o C to 85o C
Warranty: 2 years

UL 2075 Combustible Gas Detector Performance
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
CCOE/PESO Certificate for India


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