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SIERRA MONITOR  5100-88-IT-A1-01-0-0


$2,095.33     Availability: 3 Weeks
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SIERRA MONITOR 5100-88-IT-A1-01-0-0
  • Overview
  • Benefits
  • Specs
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Sierra Monitor 5200-88-IT Infrared Gas Leak Detector for Carbon Dioxide (CO2) 0-5000ppm. ModBus RTU-485, 4-20mA output, HART interface and optional alarm relays, Explosion proof NEMA-4X Aluminium Enclosure. IP66. IP65. Class I, Div. 1, Groups B, C, D.

Part# with Options:        5100-88-IT-A1-01-0-0
Price with Options:        2,095.33


(1) Rainshield for Sierra Monitor 5100
(2) Enclosure for Sierra Monitor 5100
(3) Relay/Connection Output for Macurco 5100
Sensor Protection
(4) Sensor Protection for Sierra Monitor 5100-28 / 5100-88
For very humid, marine and military applications.
Remote Sensor Kit
(5) Remote Sensor Kit for Sierra Monitor 5100

  Availability 3 Weeks  ]

Information Technology (IT) at the component level! An Infrared (IR) Carbon Dioxide Gas Sensor Module is network-enabled to provide the interface needed to your plant-wide control system, whether it be 4-20 mA, Modbus, HART, relay contacts or SentryBus. This USA-made, stand-alone smart gas sensor module is loaded with features you need. As usual, Sierra Monitor A gas detector with a Sierra Monitor pedigree, Factory Mutual approved and ready to Manage Your Gas Risk. The 5100-88-IT provides all the built-in features desired by instrumentation and safety professionals, including:

  • Modbus RTU RS-485 interface
  • 4-20 mA output
  • HART interface
  • SMC Sentry digital bus interface
  • Optional Integral alarm relays – Alarm, Warning and Trouble
  • Aluminum or 316 Stainless Steel enclosure
  • Annual calibration frequency
  • Interface to multiple protocols
  • Integral scrolling LED display

The 5100-88-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. As part of a Sentry system the user gains capability of system Modbus serial communications, extensive diagnostic features, area and zone alarm management, WebServer interface and multiplexing sensor connections.

How It Works

Carbon Dioxide absorbs infrared light energy at defined wavelengths, providing an absorption signature for CO 2 . The principle of an infrared detector is based upon the absorption of the infrared light at a specific wavelength as it passes through the gas. The more of the absorbing gas that is present, the more light is absorbed. The detector measures the energy from an infrared light beam at a wavelength that is absorbed by the gas and compares it to the energy emitted by the source. The difference in energy received by the detector indicates the level of gas in the atmosphere.


  • Non-intrusive calibration, menu driven system
  • Network compatible with Modbus, 4-20mA, Sentry bus, HART, relay interface
  • Local scrolling display


  • Able to easily and quickly calibrate module without declassifying the area
  • Easy to install in a variety of field applications plus easy to obtain critical safety information wherever needed
  • Ease of calibration and easy access to gas concentration, relay status and diagnostics

Sensor type: Infrared, Dual Wavelength
Range: 0-5000 PPM Carbon Dioxide
Repeatability: +/-1%
Accuracy: +/- 2%
Sensor Life: Typically >5 years
Heated Sensor: Heated cell to prevent condensation
Response Time: T60<20sec
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 RS-485, 4-20mA, Digital Input, 2A Relay output, No Sentry Bus
Power consumption: 3 watts
Input voltage: 24 VDC nominal: 10-30VDC
Operating Range
Ambient Temp Range: -4 to 140 F (-20 to 60 C)
Relative Humidity: 0-99% Non-Condensing
Dimensions: (A1): 7.8 x 5.7 x 3.9 in. (19.8 x 14.5 x 9.9 cm)
(A2): 8.1 x 4.8 x 4.9 in. (21 x 12 x 12 cm)
(S1 & S2): 7.5 x 4.4 x 4.9 in. (19 x 11 x 12 cm)
Weight: (A1): 3.4 lb. (1.5 Kg)
(A2): 5.4 lb. (2.5 Kg)
(S1 & S2): 7.2 lb. (3.3 Kg)
Housing: Epoxy coated Aluminum or 316 Stainless Steel Hazardous Area
Classification: Explosion proof, Class 1, Div. I, Groups B, C, D Class I, Zone 1
Group IIC, IP66, IP65, NEMA 4X, T6
TA = - 40 C to 85 C II2 GD, Ex d IIC
Warranty: 2 years
Approvals: ATEX II 2 G, Ex d IIB+H2 T6 Gb, Ta = -20 C to 60 C
FM Approval 6320: Combustible Gas Detector Performance
FM Approval 3600: Class I Div. 1, Groups C, D
SIL-2 Certified: Certified by Lloyd's Register (IEC 61508)
CSA: For enclosure in hazardous locations
ABS: Certificate of Compliance
CQST: Certificate for China
CCOE/PESO: Certificate for India

B2B Checkout Options: PO#, Designated Carrier and Tax-Exempt purchase
Payment Options: Credit Card, Credit Card Over the Phone, PAYPAL, Wire Transfer, Check and Money Order

Checkout with Paypal

> GAS DETECTORS > CARBON DIOXIDE :    11 Items found.
GDS-50-1-53-01 (1746) GDS  GDS-50-1-53-01

GDS GDS-50 Remote Infrared IR Sensor Transmiter for Carbon Dioxide (CO2) from 0 - 500 ppm to 0 - 100% volume with replaceable sensor and 4-20 mA Output. Designed for Class 1 Division 1. -20°C to +50°C. (Specify range)



GDS-48-1-53-01 (346) GDS  GDS-48-1-53-01

GDS GDS-48 Remote Gas Detector Transmitter with Stainless steel sensor head configured with SmartIR sensor for Carbon Dioxide (CO2) 0-5000 ppm to 0-100% Vol. 3-Wire Bridge Output. CSA Certified for Div. 1 Explosion Proof.




Honeywell XCD Sensepoint Gas Detector, Carbon Dioxide (CO2) Infrared Sensor with Epoxy painted aluminium alloy LM25 housing, stainless steel sensor head, explosion-proof IP66, provides comprehensive monitoring of carbon dioxide (CO2) gas hazards in potentially explosive atmospheres, both indoors and outdoors. 3-wire 24 VDC power, include 2 programmable alarm relays, 1 programmable fault relay as well as an industry standard 4-20mA output (sink or source selectable); Modbus RTU option available. User-Selectable full scale range 2%Vol. only UL/CSA Class I Division 1 or ATEX IECEx available.



IR-F9-CO2-1%-N1 (1547) HONEYWELL  IR-F9-CO2-1%-N1

Honeywell Analytics Manning Airscan IR-F9 gas detector with Infrared sensor for Carbon Dioxide (CO2) with 4-20 mA output, 24VDC Power, NEMA-1 enclosure.


$1,128.90        HA# M-511793

TMII-00-00-00/48-53-05/0-0 (1984) GDS  TMII-00-00-00/48-53-05/0-0

GDS TRANSMAX II Gas Detector with Local DELDRIN sensor head with integrated sensor configured for Smart IR Carbon Dioxide (CO2) with range 0-5% to 0-100% Vol with optional Alarm Relay Board (3x 5A SPDT) and RS-485 Modbus RTU, 4-20mA output transmitter.




Honeywell XNX Universal Gas Detector Transmitter including MPD AMIC1 IR (infrared) CO2 Carbon Dioxide sensor 0-1%/0-5% Vol. HART® over 4-20mA output,UL/CSA approved, 5 x 3/4"NPT entries and painted Aluminum. UL Certified Class 1, Div 1 Groups A, B, C, D / ATEX Zone 1



GMII-00-000-00/01-053-02/0-0 (1778) GDS  GMII-00-000-00/01-053-02/0-0

GDS GASMAX II 3-Wire Gas Detector with local stainless steel sensor head configured for Smart IR Carbon Dioxide (CO2) with range 0-5% to 0-100% Vol, 4-20 mA output transmitter with optional Alarm Relay Board (3x 5A SPDT) and RS-485 Modbus RTU.



GDS-IR-1-132-1 (437) GDS  GDS-IR-1-132-1

GDS GDS-IR Infrared Remote Gas Detector Transmitter with Stainless steel sensor head configured for Carbon Dioxide (CO2) with range 0-3.5%, 0-5% v/v, 3-Wire output 4-20 mA transmitter, Explosion Proof (XP).



100-0008-A1/100-0015-CO2 (4752) ESP SAFETY  100-0008-A1/100-0015-CO2

ESP Safety Vector 2-channel gas detector controller with smart Plug-In Sensor to Detect Carbon Dioxide (CO2) 0-2% vol, 0-5% vol or 0-3000ppm. Operates as a stand-alone display for a variety of ESP sensors which can be remotely located up to 500 feet away over 4-wire RS-485. Sensor head can also be attached. Includes analog 4-20 current loop with HART, Digital RS-485 Modbus RTU and 4 relays. 96-Character OLED Screen. Explosion-proof housing. IP67. SIL certification.



C2-48-053-01/00-000-00/0-0-0-0-0/0-0 (1859) GDS  C2-48-053-01/00-000-00/0-0-0-0-0/0-0

GDS C2 2-Channel Gas Detector Integral Alarm Controller with local DELRIN sensor head with SmartIR integrated sensor configured for Carbon Dioxide (CO2) with range 0-3.5%/5%/100% Vol. with standard 2x 5A SPDT relays, with optional visual-audible alarm, in standard CSA approved, Class I, Division 2 - NEMA 4X non-metallic enclosure 120 VAC, ready to use. With second channel available for optional sensor for EC/Toxic, catalytic, IR or PID sensors.Pushbutton Zero and Span calibration for direct sensors.



GD10-P00-23BC-00H (5114) SIMTRONICS  GD10-P00-23BC-00H

Simrad GD10P IR Point Gas Detector for Carbon Dioxide (CO2) with selectable ranges (3-100% vol) on offshore installations. 4-20 mA output with HART. 24 VDC. Available Approvals: ATEX, CSA/US, IECEx, INMETRO, ABS, SIL and MED.



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