Series F12 Digital Gas Detection Transmitter from ATI

The Series F12 Gas Transmitter is an Intrinsically Safe (IS) version of ATI’s explosion proof D12 transmitter. In its standard form, it is designed for detection of a variety of toxic gases in hazardous area applications requiring IS devices. In addition, it is also well suited for all general purpose applications where toxic gas measurement is required. For IS installations, this transmitter is also available with a Hart communication option.

Series F12 Gas Transmitter use ATI’s standard smart sensors for maximum flexibility. Sensors are easily exchanged and contain all calibration constants in sensor memory, eliminating the need for field calibration of transmitters. Sensors may be calibrated on the bench and then simply plugged into the transmitter. Calibration data is read into the transmitter automatically and no other adjustments are normally required. For general purpose gas detection applications, the F12 transmitter is also available in Non-IS versions. One version provides for easy interface to RS-485 networks using a standard MODBUS communication protocol. A second version provides a complete AC powered instrument with 3 alarm relays (SPST) available for external alarming.

Features

  • Transmitter are designed for use in application requiring intrinsically safe devices for safety purposes.
  • Every transmitter will accept up to 45 different sensor modules, greatly reducing the need for multiple transmitter models.
  • Gas generators permanently installed on the sensor verify sensor operation by providing a bump test of the sensor from daily to once a week.
  • Plug in sensors store calibration data, allowing sensors to be calibrated separately from the transmitter. This allows bench calibration (or factory calibration) of sensors to reduce the necessity for carrying calibration gas around the plant.
  •  A non-IS version of the transmitter provides 3 integral alarm relays. Relays and programmable for setpoint, hysteresis, on-delay and other variables. Systems with alarms are available for operation from 12-30 VDC supplies or from 115 or 230 VAC power.
  • The IS version of the transmitter is available with Hart communications. The Hart protocol supports the Hart Universal and Common Practice Commands at 1200 baud using the Bell 202 FSK modem standard. The non-IS versions of the transmitter are available with MODBUS communications. The MODBUS protocol supports 9600 baud access to concentration and status information and supports alarm setup and many other functions.
  • Gas concentrations are displayed in large, easy to read numbers. The display also provides alarm indication and complete menus for setting up operating parameters.
  •  Measured gas values are stored at user designable intervals and can be recalled when needed on the LCD display. Data can be downloaded using a Hart or MODBUS interface.
  • Each time a sensor is zeroed or calibrated, the data is stored in memory. Calibration history can be recalled and sensor condition reviewed by operating personnel whenever necessary.
  • Operating functions such as calibration, alarm setup, alarm reset, data view and setup options are all available using sealed front panel switches on the face of the Nema 4X transmitter enclosure.
  • For use in applications where condensation is a problem, this heater option keeps the sensor above the whew point to eliminate loss of sensitivity due to moisture blockage on the sensor face.
  • Transmitter analog output can be set to user definable values and relay outputs can be set to specific states for complete simulation of detection system operation. Output and alarms may also be inhibited for maintenance and calibration.

Sensor Specifications

Gas
Range
Factory Calibration
Acid Gases*
0-10/200 ppm
20 ppm
Acetylene
0-200/2,000 ppm
0-500 ppm
Alcohol
0-50/500 ppm
200 ppm
0-500/2,000 ppm
2,000 ppm
Ammonia*
0-50/500 ppm
200 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
0-5/100
20 ppm
Carbon Monoxide*
0-50/1,000 ppm
200 ppm
Chlorine*
0-1/5 ppm
2 ppm
0-5/100 ppm
20 ppm
Chlorine Dioxide*
0-1/5 ppm
2 ppm
0-1/5 ppm
Low Cl2 Response
0-5/100 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*
0-100/200 ppm
100 ppm
Ethylene Oxide*
0-20/200 ppm
20 ppm
Fluorine*
0-1/5 ppm
2 ppm
0-5/100 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 Bromide* 0-10/200 ppm 20 ppm
HC Sensor Specify Gas
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
0-200/2,000 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
Iodine*
0-1/5 ppm
2 ppm
0-5/100 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
0-5/100 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
Sulfur Dioxide*
0-10/500 ppm
20 ppm

(*) Indicates Auto-Test available

Specifications

Range User adjustable within limits of selected sensor module
Response Time Sensor dependent
Accuracy Generally ±10% of value, but limited by available calibration gas accuracy
Electronic Repeatability ±1% of full scale
Electronic Linearity ±0.5% of full scale
Zero Drift Less than 2% of full scale per month, non-cumulative
Span Drift Application dependent, but generally less than 3% per month
Alarm Relay Option Three SPST 5A@ 230 VAC resistive
Analog Output Loop powered 4-20 mA, 800 ohms maximum at 24 VDC (except combustible gas)
Serial Interface HART (1200 baud modem interface), MODBUS (1200-9600 – RS-232 or RD-485, software selectable)
Power 12-30 VDC, 25 mA maximum in loop powered mode
12-30 VDC, 200 mA maximum in 3-wire mode
115 or 230 VAC, 50/60 Hz
Alarm Relays Three SPDT, 5A@230 VAC resistive
Relay Coil Programmable either normally energized or normally de-energized
Enclosure Explosion proof Class 1, Div 1, Groups B, C, D or NEMA 4X
Sensor Type Electrochemical for toxic gases and oxygen
Controls 4 magnetic switches on front of transmitter
Temperature -30° to + 60°C for toxics, -10°C minimum for oxygen sensor
Heated Sensor Power 24 VDC connection, 250 mA

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

Series F12 Gas Transmitter literature

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