Economy Fixed Point


Economy Fixed Position Systems

Inexpensive fixed position gas detection systems for a variety of toxic gases and vapors.

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A14/11 Economy Modular Gas Detection System from Analytical Technology
GasSens is a flexible component system providing a variety of options to meet individual gas detection and alarm requirements. Economical and low maintenance, this system is your best choice for reliable leak detection. GasSens detection systems consist of individual modules that can be located where required. Sensor/transmitters located in the area where gas leakage or buildup might occur, provide the basic measurement for the system. Sensor transmitters are available in either NEMA 4X or explosion-proof versions and can be supplied with ATI’s exclusive Auto-Test automatic sensor testing system. Receiver modules provide the electronic brains for the detection and alarm system. Each compact module includes a digital display of gas concentration, isolated analog output, and 4 relay outputs. Receivers may be located up to 1,000 feet from sensor/transmitters for remote indication or can provide local control functions such as valve shut off while transmitting a 4-20 mA signal to remote displays or dataloggers. Receiver modules provide an interface between the detection system and external alarming and data logging requirements. One module is used with each sensor/transmitter.

Features

  • The LED display Indicates gas concentration directly in ppm, ppb or %. The display may be operated in high intensity mode for outdoor use or in normal mode for indoor application
  • An isolated 4-20 mA output is standard. The output will drive loads up to 1,000 ohms for use in recording, data logging or computer input.
  • Two alarm setpoints are factory adjusted to standard values but may be set to any value from 5% to 100% of range. Front panel LED’s marked Warning and Alarm indicate the status of each alarm setpoint. A standard alarm time delay of 2 seconds or a longer delay of 10 seconds may be selected. In addition, alarms may be switch programmed to activate either above or below the setpoint.
  • Three alarm output relays are SPDT with unpowered contacts for use in activating external signaling devices, control elements or for input to telemetry or annunciator systems. Each relay may be assigned to either alarm setpoint for application flexibility. Relays are factory set to energize on alarm, but may be switch programmed for fail safe operation. Relays may be also set either latching or non-latching operation.
  • Trouble alarm & relay should the sensor/transmitter input be lost, a trouble light (LED) on the front panel will flash and an associated relay will activate. For those systems equipped with the Sensor Auto-Test feature, this alarm will also activate if the sensor does not respond to the automated gas test.
  •  A single front panel switch marked A/R serves a number of functions. When an alarm occurs, the switch will silence an audible horn wired to the module and will change the alarm lights from flash to steady on. After the alarm condition has cleared, the switch will also activate an electronic module test, inhibit alarm contacts and activate the sensor Auto-Test.
  • Terminals are provided for connection of a remote reset switch so that alarms can be acknowledged form a remote location or through a telemetry system.
  • External electrical connections are made to plug in terminal blocks. Should module service ever be needed, modules can be replaced in minutes.
GasSens gas detection systems employ electrochemical sensors developed and manufactured by ATI. Expertise in electrochemistry and sensor design provide the foundation for leak detection systems that perform continuously with minimal maintenance. Sensors are rated for ambient temperature from -25 to 50ºC, allowing both indoor and outdoor applications. Excellent zero stability and high sensitivity and selectivity combine to make ATI sensors the best available. Gas sensors are closely coupled to a digital transmitter for excellent noise immunity and the ability to transmit long distances using unshielded cable. The transmitter is powered from the receiver module and uses a unique current pulse position technique to send information to the receiver over a two wire connection. The receiver connection in not polarity sensitive, virtually eliminating the possibility of incorrect transmitter wiring. Sensor/transmitters can be located up to 1,000 feet from receiver modules. Sensor/transmitters are housed in shielded NEMA 4X enclosures for use in almost any industrial environment and are designed to meet intrinsic safety standards. An explosion proof version is available.

Auto-Test – Savings & Safety

A major expense in gas detection systems is the cost of regular testing to ensure that sensors are responding. This requires a technician to inspect sensors weekly and apply a small amount of gas manually to check response. ATI has developed a unique system to reduce this maintenance requirement. Available on most ATI digital sensor/transmitters is an option called “Auto-Test.” This option consists of an electrochemical gas generator closely coupled to the sensor. Every 24 hours, the receiver automatically activates the generator, producing a small amount of gas that diffuses into the sensor, just as it would if a gas leak occurred. The microcomputer is the receiver analyzes the output of the transmitter to determine that the sensor is responding normally. When proper sensor response is detected, the generator is turned off and the system goes back to normal operation. If no sensor response is detected, the TROUBLE light on the receiver will flash and the trouble relay will activate. During testing, alarm relays are inhibited so that external alarms are not activated. The Auto-Test feature ensures that each sensor is regularly tested with gas. Premature sensor failure or blockage of the sensor membrane is quickly detected. In addition, self-testing will alert maintenance personnel when a sensor has reached the end of its useful life. Since sensors normally last anywhere from 12 months to over 3 years, this feature allows users to determine when sensor replacement is needed.

Power Supply Module

A compact universal power supply in a DIN rail module similar to the receiver was developed. The power supply will accept any AC or DC input from 85 to 225 volts, without adjustment. Other options include a battery back up system and horn and strobe light options.

Specifications

Concentration Display 4 Digit LED, sunlight readable
Input Digital signal, 2 wire connection to remote sensor/transmitter
Output Isolated 4-20 mA or 0-20 mA DC, 1,000 ohms maximum load
Alarms Two adjustable concentration alarms, setpoints adjustable form 5-100% of range
Alarm Indicators High intensity LED bars for Warning (low setpoint) and Alarm (high setpoint)
Indicator Function Warning indicator non-latching, alarm latching
Alarm Relays Three assignable alarm relays, 10 A, 120 VAC (5A, 250 VAC) resistive alarm relays assignable to either alarm setpoint
Relay Function Configurable for normal/fail-safe, latching/non-latching and fast/slow operation
Relay & Indicator Reset Activated from front panel switch or through remote reset
Trouble Alarm Front panel LED indicator and SPDT, 10 A 120 VAC (5A, 250 VAC) resistive relay; Relay factory set to fail-safe operation
Trouble Function Indicates loss of sensor/transmitter input or failure of sensor Auto-Test (if in use)
Gas Indicator LED bar on front panel with gas symbol overlay
Mounting Module mounts to 35 x 7.5 mm DIN rail
Electrical Connection Quick disconnect plug-in terminal blocks
Module Enclosure Noryl
Power 9-15 VDC, 30 mA maximum

Sensor Specifications

Gas
Range
Factory Calibration
Acid Gases*
0-10/200 ppm
20 ppm
Acetylene*
0-50/500 ppm
0-200 ppm
Alcohol
0-50/500 ppm
200 ppm
0-500/2,000 ppm
2,000 ppm
Ammonia*
0-50/500 ppm
100 ppm
0-500/2,000 ppm
1,000 ppm
Arsine
0-500/2,000 ppb
1,000 ppb
0-10/200 ppm
10 ppm
Bromine*
0-1/5 ppm
2 ppm
0-5/200
20 ppm
Carbon Monoxide*
0-50/1,000 ppm
100 ppm
Chlorine*
0-1/5 ppm
2 ppm
0-5/200 ppm
20 ppm
Chlorine Dioxide*
0-1/5 ppm
2 ppm
0-1/5 ppm
Low Cl2 Response
0-5/200 ppm
20 ppm
0-200/1,000 ppm
1,000 ppm
Diborane
0-500/2,000 ppb
1,000 ppb
0-10/200 ppm
10 ppm
Dimethyl Amine (DMA)
0-100/200 ppm
100 ppm
Ethylene Oxide*
0-20/200 ppm
20 ppm
Fluorine*
0-1/5 ppm
2 ppm
0-5/200 ppm
20 ppm
Formaldehyde*
0-20/200 ppm
20 ppm
0-500/2,000 ppm
1,000 ppm
Germane
0-500/2,000 ppb
1,000 ppb
0-10/200 ppm
10 ppm
Hydrogen
0-1/10%
4%
0-500/2,000 ppm
2,000 ppm
Hydrogen Chloride*
0-10/200 ppm
20 ppm
Hydrogen Cyanide*
0-10/200 ppm
20 ppm
Hydrogen Fluoride*
0-10/200 ppm
20 ppm
Hydrogen Peroxide*
0-10/100 ppm
20 ppm
0-200/0-2,000 ppm
1,000 ppm
Hydrogen Selenide
0-500/2,000 ppb
1,000 ppb
0-10/200 ppm
10 ppm
Hydrogen Sulfide*
0-10/200 ppm
50 ppm
0-200/1,000 ppm
Iodine*
0-1/5 ppm
2 ppm
0-5/200 ppm
20 ppm
Nitrogen Dioxide*
0-10/200 ppm
20 ppm
Nitric Oxide
0-50/500 ppm
200 ppm
NOx
0-50/500 ppm
200 ppm
Oxygen
0-5/25%
25%
Ozone*
0-1/5 ppm
2 ppm
0-5/200 ppm
20 ppm
0-200/1,000 ppm
1,000 ppm
Phosgene
0-1/5 ppm
2 ppm
0-5/100 ppm
100 ppm
Phosphine
0-500/2,000 ppb
1,000 ppb
0-10/200 ppm
10 ppm
0-200/2,000 ppm
1,000 ppm
Silane
0-10/200 ppm
10 ppm
0-500/2,000 ppb
1,000 ppb
Sulfur Dioxide*
0-10/500 ppm
20 ppm
Note: * Indicates sensors available with Auto-Test feature.

Sensor/Transmitter Specifications

Measurement Gas type and range customer specified
Transmitter Type Two wire system, current pulse operation signal
Sensor Electrochemical gas diffusion type
Accuracy Generally +/-5% of value, but limited by available calibration of gas accuracy
Zero Drift Sensor dependent but normally less than 2% per month, non-cumulative
Enclosure NEMA 4X polystyrene
Optional Enclosure Explosion proof cast aluminum, Class I, Div 1, Gps B, C & D
Electrical Connection Quick disconnect terminal blocks (two wires without polarity)
Connection Distance Up to 1,000 feet to receiver
Option Sensor Auto-Test
Power 12 VDC from receiver module

Ordering Information

For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com.

Downloads

GasSens Literature Tags: Acetylene gas detector, Alcohol gas detector, Ammonia gas detector, Arsine gas detector, Bromine gas detector, Carbon Monoxide gas detector, Chlorine gas detector, Chlorine Dioxide gas detector, Diborane gas detector, Dimethyl Amine (DMA) gas detector, Ethylene Oxide gas detector, Fluorine gas detector, Formaldehyde gas detector, Germane gas detector, Hydrogen gas detector, Hydrogen Chloride gas detector, Hydrogen Cyanide gas detector, Hydrogen Fluoride gas detector, Hydrogen Peroxide gas detector, Hydrogen Selenide gas detector, Hydrogen Sulfide gas detector, Iodine gas detector, Nitrogen Dioxide gas detector, Nitric Oxide gas detector, NOx gas detector, Oxygen gas detector, Ozone gas detector, Phosgene gas detector, Phosphine gas detector, Silane gas detector, Sulfur Dioxide gas detector
Series B12 Gas Detection Transmitter from Analytical Technology
Series B12 gas detection transmitters are loop powered instruments that transmit a 4-20 mA signal linearly proportional to gas concentration. Operated from a 24 VDC power supply, the transmitter will drive loads up to 675 ohms. Alternatively, the unit can operate at 12 VDC – with reduced output load – for applications requiring battery operation. Transmitters are normally supplied with the sensor close coupled to the enclosure. However, for special applications, the unit can be supplied with separate sensors that can be located up to 25 feet from the transmitter. Sensor duct mounting adapters and sensor flowcells can also be provided for specific applications.
Input Voltage
Maximum Load
12
75
14
175
16
275
18
375
20
475
22
575
24
675
26
775
28
875
30
975

Gases Available

Gas
Minimum Range
Maximum Range
Acetylene
0-500 ppm
0-2,000 ppm
Acid Gases
0-10 ppm
0-200 ppm
Alcohol
0-500 ppm
0-2,000 ppm
Ammonia
0-100 ppm
0-2,000 ppm
Arsine
0-1,000 ppb
0-5,000 ppb
Bromine
0-1 ppm
0-200 ppm
Carbon Monoxide
0-100 ppm
0-10,000 ppm
Chlorine
0-1 ppm
0-200 ppm
Chlorine Dioxide
0-1 ppm
0-200 ppm
Diborane
0-1,000 ppb
0-5,000 ppb
DMA
0-100 ppm
0-200 ppm
Ethylene Oxide
0-20 ppm
0-200 ppm
Fluorine
0-1 ppm
0-200 ppm
Formaldehyde
0-20 ppm
0-200 ppm
Germane
0-1,000 ppb
0-5,000 ppb
Hydrogen
0-1,000 ppm
0-10%
Hydrogen Chloride
0-10 ppm
0-200 ppm
Hydrogen Cyanide
0-10 ppm
0-200 ppm
Hydrogen Fluoride
0-10 ppm
0-200 ppm
Hydrogen Peroxide
0-10 ppm
0-2,000 ppm
Hydrogen Selenide
0-1,000 ppb
0-5,000 ppb
Hydrogen Sulfide
0-10 ppm
0-1,000 ppm
Iodine
0-1 ppm
0-200 ppm
Nitrogen Dioxide
0-10 ppm
0-200 ppm
Nitric Oxide
0-50 ppm
0-500 ppm
NOx
0-50 ppm
0-500 ppm
Oxygen
0-5%
0-25%
Ozone
0-1 ppm
0-200 ppm
Phosgene
0-1 ppm
0-100 ppm
Phosphine
0-1,000 ppb
0-2,000 ppm
Silane
0-10 ppm
0-50 ppm
Sulfur Dioxide
0-10 ppm
0-200 ppm

Specifications

Range Supplied with standard range for each gas unless otherwise specified
Accuracy Generally ±5% of value, but limited by available calibration gas accuracy
Electronic Repeatability ±1% of full scale
Electronic Linearity ±0.5% of full scale
Zero Drift Sensor dependent, but generally less than 2% of full scale per month, non-cumulative
Span Drift Application dependent, but generally less than 3% per month
Output Loop powered 4-20 mA, 675 ohms maximum at 24 VDC (except combustible gas)
Power 12-30 VDC
Enclosure NEMA 4X polystyrene. Explosion proof optional, Class 1, Div 1, Groups B, C & D
Controls Zero and span potentiometers mounted on transmitter circuit board
Display Optional 3-digit LCD (not available with explosion proof enclosure)

B12 Series 2-Wire Transmitter for Wet Gas Streams

Increasingly stringent air quality requirements have led to expanded use of wet scrubber systems to control air emissions. Chlorine storage facilities and chemical process plants are frequently required to scrub exhaust gas streams to remove halogen and acid gases. Unfortunately, monitoring reactive gas concentration in moisture saturated air streams presents problems for standard diffusion sensors. Condensing water in these air lines can quickly blind diffusion sensors, rendering them inoperable. ATI’s Series B12 Wet Gas System was developed to meet the need for reliable measurements in wet scrubber outlets for other gas streams that might be saturated with water vapor. Systems have been developed for monitoring strong oxidants (chlorine, bromine, chlorine dioxide, or ozone), acid gases (HCl or HF) and hydrogen. The basic B12 Wet Gas System consists of a loop-powered 2-wire transmitter and a corrosion resistant sensor specifically engineered to operate at 100% RH. Sensors are designed for direct insertion into vent stacks or may be used in a flowcell if sample can be pumped to the sensor. When remote display and alarm relay functions are required, the B12 Wet Gas Transmitters can be connected to ATI’s B14 Alarm Receiver System. This system will provide direct digital display of gas concentration, plus 3 alarm setpoints, remote alarm reset input and retransmit 4-20 mA output. Or, the B12 transmitter may be used separately and tied directly to the users DCS, PLC or other equipment. Either way, the B12 is an excellent solution to a difficult monitoring problem.

Specifications

Gas Type
Oxidant Gases: Cl2, Br2, ClO2, O3
Acid Gases: HF, HCl
Hydrogen
Range 0-10, 0-20, 0-50 or 0-100 ppm 0-10, 0-20, 0-50 or 0-100 ppm 0-2% or 0-10%
Accuracy Generally ±5% of value, but limited by available calibration gas accuracy
Electronic Repeatability ±1% of full scale
Electronic Linearity ±0.5% of full scale
Output Loop powered 4-20 mA, 675 ohms, maximum at 24 VDC
Power 12-28 VDC
Enclosures NEMA 4X polystyrene, LCD display optional Explosion-proof optional. Class 1, Div 1, Groups B, C & D
Controls Zero and span potentiometers mounted on transmitter circuit board
Operating Temperature 0 to 50°C
Sensor Materials Noryl
Sensor Cable 25 feet standard, 100 feet maximum

Ordering Information

For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com.

Downloads

B12 gas detection transmitters Literature B12 Wet Gas Literature
A14/11 Economy Modular Gas Detection System from Analytical Technology
GasSens is a flexible component system providing a variety of options to meet individual gas detection and alarm requirements. Economical and low maintenance, this system is your best choice for reliable leak detection. GasSens detection systems consist of individual modules that can be located where required. Sensor/transmitters located in the area where gas leakage or buildup might occur, provide the basic measurement for the system. Sensor transmitters are available in either NEMA 4X or explosion-proof versions and can be supplied with ATI’s exclusive Auto-Test automatic sensor testing system. Receiver modules provide the electronic brains for the detection and alarm system. Each compact module includes a digital display of gas concentration, isolated analog output, and 4 relay outputs. Receivers may be located up to 1,000 feet from sensor/transmitters for remote indication or can provide local control functions such as valve shut off while transmitting a 4-20 mA signal to remote displays or dataloggers. Receiver modules provide an interface between the detection system and external alarming and data logging requirements. One module is used with each sensor/transmitter. Features The LED display Indicates gas concentration directly in ppm, ppb or %. The display may be operated in high intensity mode for outdoor use or in normal mode for indoor application An isolated 4-20 mA output is standard. The output will drive loads up to 1,000 ohms for use in recording, data logging or computer input. Two alarm setpoints are factory adjusted to standard values but may be set to any value from 5% to 100% of range. Front panel LED’s marked Warning and Alarm indicate the status of each alarm setpoint. A standard alarm time delay of 2 seconds or a longer delay of 10 seconds may be selected. In addition, alarms may be switch programmed to activate either above or below the setpoint. Three alarm output relays are SPDT with unpowered contacts for use in activating external signaling devices, control elements or for input to telemetry or annunciator systems. Each relay may be assigned to either alarm setpoint for application flexibility. Relays are factory set to energize on alarm, but may be switch programmed for fail safe operation. Relays may be also set either latching or non-latching operation. Trouble alarm & relay should the sensor/transmitter input be lost, a trouble light (LED) on the front panel will flash and an associated relay will activate. For those systems equipped with the Sensor Auto-Test feature, this alarm will also activate if the sensor does not respond to the automated gas test.  A single front panel switch marked A/R serves a number of functions. When an alarm occurs, the switch will silence an audible horn wired to the module and will change the alarm lights from flash to steady on. After the alarm condition has cleared, the switch will also activate an electronic module test, inhibit alarm contacts and activate the sensor Auto-Test. Terminals are provided for connection of a remote reset switch so that alarms can be acknowledged form a remote location or through a telemetry system. External electrical connections are made to plug in terminal blocks. Should module service ever be needed, modules can be replaced in minutes. GasSens gas detection systems employ electrochemical sensors developed and manufactured by ATI. Expertise in electrochemistry and sensor design provide the foundation for leak detection systems that perform continuously with minimal maintenance. Sensors are rated for ambient temperature from -25 to 50ºC, allowing both indoor and outdoor applications. Excellent zero stability and high sensitivity and selectivity combine to make ATI sensors the best available. Gas sensors are closely coupled to a digital transmitter for excellent noise immunity and the ability to transmit long distances using unshielded cable. The transmitter is powered from the receiver module and uses a unique current pulse position technique to send information to the receiver over a two wire connection. The receiver connection in not polarity sensitive, virtually eliminating the possibility of incorrect transmitter wiring. Sensor/transmitters can be located up to 1,000 feet from receiver modules. Sensor/transmitters are housed in shielded NEMA 4X enclosures for use in almost any industrial environment and are designed to meet intrinsic safety standards. An explosion proof version is available. Auto-Test – Savings & Safety A major expense in gas detection systems is the cost of regular testing to ensure that sensors are responding. This requires a technician to inspect sensors weekly and apply a small amount of gas manually to check response. ATI has developed a unique system to reduce this maintenance requirement. Available on most ATI digital sensor/transmitters is an option called “Auto-Test.” This option consists of an electrochemical gas generator closely coupled to the sensor. Every 24 hours, the receiver automatically activates the generator, producing a small amount of gas that diffuses into the sensor, just as it would if a gas leak occurred. The microcomputer is the receiver analyzes the output of the transmitter to determine that the sensor is responding normally. When proper sensor response is detected, the generator is turned off and the system goes back to normal operation. If no sensor response is detected, the TROUBLE light on the receiver will flash and the trouble relay will activate. During testing, alarm relays are inhibited so that external alarms are not activated. The Auto-Test feature ensures that each sensor is regularly tested with gas. Premature sensor failure or blockage of the sensor membrane is quickly detected. In addition, self-testing will alert maintenance personnel when a sensor has reached the end of its useful life. Since sensors normally last anywhere from 12 months to over 3 years, this feature allows users to determine when sensor replacement is needed. Power Supply Module A compact universal power supply in a DIN rail module similar to the receiver was developed. The power supply will accept any AC or DC input from 85 to 225 volts, without adjustment. Other options include a battery back up system and horn and strobe light options. Specifications Concentration Display 4 Digit LED, sunlight readable Input Digital signal, 2 wire connection to remote sensor/transmitter Output Isolated 4-20 mA or 0-20 mA DC, 1,000 ohms maximum load Alarms Two adjustable concentration alarms, setpoints adjustable form 5-100% of range Alarm Indicators High intensity LED bars for Warning (low setpoint) and Alarm (high setpoint) Indicator Function Warning indicator non-latching, alarm latching Alarm Relays Three assignable alarm relays, 10 A, 120 VAC (5A, 250 VAC) resistive alarm relays assignable to either alarm setpoint Relay Function Configurable for normal/fail-safe, latching/non-latching and fast/slow operation Relay & Indicator Reset Activated from front panel switch or through remote reset Trouble Alarm Front panel LED indicator and SPDT, 10 A 120 VAC (5A, 250 VAC) resistive relay; Relay factory set to fail-safe operation Trouble Function Indicates loss of sensor/transmitter input or failure of sensor Auto-Test (if in use) Gas Indicator LED bar on front panel with gas symbol overlay Mounting Module mounts to 35 x 7.5 mm DIN rail Electrical Connection Quick disconnect plug-in terminal blocks Module Enclosure Noryl Power 9-15 VDC, 30 mA maximum Sensor Specifications Gas Range Factory Calibration Acid Gases* 0-10/200 ppm 20 ppm Acetylene* 0-50/500 ppm 0-200 ppm Alcohol 0-50/500 ppm 200 ppm 0-500/2,000 ppm 2,000 ppm Ammonia* 0-50/500 ppm 100 ppm 0-500/2,000 ppm 1,000 ppm Arsine 0-500/2,000 ppb 1,000 ppb 0-10/200 ppm 10 ppm Bromine* 0-1/5 ppm 2 ppm 0-5/200 20 ppm Carbon Monoxide* 0-50/1,000 ppm 100 ppm Chlorine* 0-1/5 ppm 2 ppm 0-5/200 ppm 20 ppm Chlorine Dioxide* 0-1/5 ppm 2 ppm 0-1/5 ppm Low Cl2 Response 0-5/200 ppm 20 ppm 0-200/1,000 ppm 1,000 ppm Diborane 0-500/2,000 ppb 1,000 ppb 0-10/200 ppm 10 ppm Dimethyl Amine (DMA) 0-100/200 ppm 100 ppm Ethylene Oxide* 0-20/200 ppm 20 ppm Fluorine* 0-1/5 ppm 2 ppm 0-5/200 ppm 20 ppm Formaldehyde* 0-20/200 ppm 20 ppm 0-500/2,000 ppm 1,000 ppm Germane 0-500/2,000 ppb 1,000 ppb 0-10/200 ppm 10 ppm Hydrogen 0-1/10% 4% 0-500/2,000 ppm 2,000 ppm Hydrogen Chloride* 0-10/200 ppm 20 ppm Hydrogen Cyanide* 0-10/200 ppm 20 ppm Hydrogen Fluoride* 0-10/200 ppm 20 ppm Hydrogen Peroxide* 0-10/100 ppm 20 ppm 0-200/0-2,000 ppm 1,000 ppm Hydrogen Selenide 0-500/2,000 ppb 1,000 ppb 0-10/200 ppm 10 ppm Hydrogen Sulfide* 0-10/200 ppm 50 ppm 0-200/1,000 ppm – Iodine* 0-1/5 ppm 2 ppm 0-5/200 ppm 20 ppm Nitrogen Dioxide* 0-10/200 ppm 20 ppm Nitric Oxide 0-50/500 ppm 200 ppm NOx 0-50/500 ppm 200 ppm Oxygen 0-5/25% 25% Ozone* 0-1/5 ppm 2 ppm 0-5/200 ppm 20 ppm 0-200/1,000 ppm 1,000 ppm Phosgene 0-1/5 ppm 2 ppm 0-5/100 ppm 100 ppm Phosphine 0-500/2,000 ppb 1,000 ppb 0-10/200 ppm 10 ppm 0-200/2,000 ppm 1,000 ppm Silane 0-10/200 ppm 10 ppm 0-500/2,000 ppb 1,000 ppb Sulfur Dioxide* 0-10/500 ppm 20 ppm Note: * Indicates sensors available with Auto-Test feature. Sensor/Transmitter Specifications Measurement Gas type and range customer specified Transmitter Type Two wire system, current pulse operation signal Sensor Electrochemical gas diffusion type Accuracy Generally +/-5% of value, but limited by available calibration of gas accuracy Zero Drift Sensor dependent but normally less than 2% per month, non-cumulative Enclosure NEMA 4X polystyrene Optional Enclosure Explosion proof cast aluminum, Class I, Div 1, Gps B, C & D Electrical Connection Quick disconnect terminal blocks (two wires without polarity) Connection Distance Up to 1,000 feet to receiver Option Sensor Auto-Test Power 12 VDC from receiver module Ordering Information For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com. Downloads GasSens Literature Tags: Acetylene gas detector, Alcohol gas detector, Ammonia gas detector, Arsine gas detector, Bromine gas detector, Carbon Monoxide gas detector, Chlorine gas detector, Chlorine Dioxide gas detector, Diborane gas detector, Dimethyl Amine (DMA) gas detector, Ethylene Oxide gas detector, Fluorine gas detector, Formaldehyde gas detector, Germane gas detector, Hydrogen gas detector, Hydrogen Chloride gas detector, Hydrogen Cyanide gas detector, Hydrogen Fluoride gas detector, Hydrogen Peroxide gas detector, Hydrogen Selenide gas detector, Hydrogen Sulfide gas detector, Iodine gas detector, Nitrogen Dioxide gas detector, Nitric Oxide gas detector, NOx gas detector, Oxygen gas detector, Ozone gas detector, Phosgene gas detector, Phosphine gas detector, Silane gas detector, Sulfur Dioxide gas detector
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Series B12 Gas Detection Transmitter from Analytical Technology
Series B12 gas detection transmitters are loop powered instruments that transmit a 4-20 mA signal linearly proportional to gas concentration. Operated from a 24 VDC power supply, the transmitter will drive loads up to 675 ohms. Alternatively, the unit can operate at 12 VDC – with reduced output load – for applications requiring battery operation. Transmitters are normally supplied with the sensor close coupled to the enclosure. However, for special applications, the unit can be supplied with separate sensors that can be located up to 25 feet from the transmitter. Sensor duct mounting adapters and sensor flowcells can also be provided for specific applications. Input Voltage Maximum Load 12 75 14 175 16 275 18 375 20 475 22 575 24 675 26 775 28 875 30 975 Gases Available Gas Minimum Range Maximum Range Acetylene 0-500 ppm 0-2,000 ppm Acid Gases 0-10 ppm 0-200 ppm Alcohol 0-500 ppm 0-2,000 ppm Ammonia 0-100 ppm 0-2,000 ppm Arsine 0-1,000 ppb 0-5,000 ppb Bromine 0-1 ppm 0-200 ppm Carbon Monoxide 0-100 ppm 0-10,000 ppm Chlorine 0-1 ppm 0-200 ppm Chlorine Dioxide 0-1 ppm 0-200 ppm Diborane 0-1,000 ppb 0-5,000 ppb DMA 0-100 ppm 0-200 ppm Ethylene Oxide 0-20 ppm 0-200 ppm Fluorine 0-1 ppm 0-200 ppm Formaldehyde 0-20 ppm 0-200 ppm Germane 0-1,000 ppb 0-5,000 ppb Hydrogen 0-1,000 ppm 0-10% Hydrogen Chloride 0-10 ppm 0-200 ppm Hydrogen Cyanide 0-10 ppm 0-200 ppm Hydrogen Fluoride 0-10 ppm 0-200 ppm Hydrogen Peroxide 0-10 ppm 0-2,000 ppm Hydrogen Selenide 0-1,000 ppb 0-5,000 ppb Hydrogen Sulfide 0-10 ppm 0-1,000 ppm Iodine 0-1 ppm 0-200 ppm Nitrogen Dioxide 0-10 ppm 0-200 ppm Nitric Oxide 0-50 ppm 0-500 ppm NOx 0-50 ppm 0-500 ppm Oxygen 0-5% 0-25% Ozone 0-1 ppm 0-200 ppm Phosgene 0-1 ppm 0-100 ppm Phosphine 0-1,000 ppb 0-2,000 ppm Silane 0-10 ppm 0-50 ppm Sulfur Dioxide 0-10 ppm 0-200 ppm Specifications Range Supplied with standard range for each gas unless otherwise specified Accuracy Generally ±5% of value, but limited by available calibration gas accuracy Electronic Repeatability ±1% of full scale Electronic Linearity ±0.5% of full scale Zero Drift Sensor dependent, but generally less than 2% of full scale per month, non-cumulative Span Drift Application dependent, but generally less than 3% per month Output Loop powered 4-20 mA, 675 ohms maximum at 24 VDC (except combustible gas) Power 12-30 VDC Enclosure NEMA 4X polystyrene. Explosion proof optional, Class 1, Div 1, Groups B, C & D Controls Zero and span potentiometers mounted on transmitter circuit board Display Optional 3-digit LCD (not available with explosion proof enclosure) B12 Series 2-Wire Transmitter for Wet Gas Streams Increasingly stringent air quality requirements have led to expanded use of wet scrubber systems to control air emissions. Chlorine storage facilities and chemical process plants are frequently required to scrub exhaust gas streams to remove halogen and acid gases. Unfortunately, monitoring reactive gas concentration in moisture saturated air streams presents problems for standard diffusion sensors. Condensing water in these air lines can quickly blind diffusion sensors, rendering them inoperable. ATI’s Series B12 Wet Gas System was developed to meet the need for reliable measurements in wet scrubber outlets for other gas streams that might be saturated with water vapor. Systems have been developed for monitoring strong oxidants (chlorine, bromine, chlorine dioxide, or ozone), acid gases (HCl or HF) and hydrogen. The basic B12 Wet Gas System consists of a loop-powered 2-wire transmitter and a corrosion resistant sensor specifically engineered to operate at 100% RH. Sensors are designed for direct insertion into vent stacks or may be used in a flowcell if sample can be pumped to the sensor. When remote display and alarm relay functions are required, the B12 Wet Gas Transmitters can be connected to ATI’s B14 Alarm Receiver System. This system will provide direct digital display of gas concentration, plus 3 alarm setpoints, remote alarm reset input and retransmit 4-20 mA output. Or, the B12 transmitter may be used separately and tied directly to the users DCS, PLC or other equipment. Either way, the B12 is an excellent solution to a difficult monitoring problem. Specifications Gas Type Oxidant Gases: Cl2, Br2, ClO2, O3 Acid Gases: HF, HCl Hydrogen Range 0-10, 0-20, 0-50 or 0-100 ppm 0-10, 0-20, 0-50 or 0-100 ppm 0-2% or 0-10% Accuracy Generally ±5% of value, but limited by available calibration gas accuracy Electronic Repeatability ±1% of full scale Electronic Linearity ±0.5% of full scale Output Loop powered 4-20 mA, 675 ohms, maximum at 24 VDC Power 12-28 VDC Enclosures NEMA 4X polystyrene, LCD display optional Explosion-proof optional. Class 1, Div 1, Groups B, C & D Controls Zero and span potentiometers mounted on transmitter circuit board Operating Temperature 0 to 50°C Sensor Materials Noryl Sensor Cable 25 feet standard, 100 feet maximum Ordering Information For pricing, please call AFC International at 1-800-952-3293, 219-987-6825 or fax 219-987-6826 or email sales@afcintl.com. Downloads B12 gas detection transmitters Literature B12 Wet Gas Literature
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