A New Standard of Excellence - ETA Process Instrumentation

A New Standard of Excellence

PREVENTION IS SO EASY...
LIVING THROUGH A DISASTER IS NOT
The reliable identification of low combustion oxygen and/ or high or low
combustibles (CO) in a fired heater or boiler has always been critical to the
effectiveness of the Burner Management System (BMS) for proper control and
safety.
Low emission burners and aggressive firing control points to achieve increased
efficiency and emission reductions has led the industry to realize tighter control
leads to a potential higher probability of combustion “events” which need to be
addressed . The need to add additional layers of safety to the Basic Process Control
System (BPCS) to reduce the risk of a combustion event has become a high priority
within industry and has led to implementation of Safety Instrumented Systems
(SIS), independent of the BPCS.
Additional layers of Safety can be achieved with the measurement of excess O2,
Combustibles, and Hydrocarbons and using these readings to insure safe operation
of the process or shut it down if it gets out of control. In control and safety
applications, it is critical that the “availability” of the analyzer (is it operational
and correct?) is as high as possible.
The WDG-V Combustion Analyzer is designed to provide the complete solution
for combustion process control and process control safety applications with
redundancy and diagnostics to monitor performance and health as well as provide
statistical data needed to implement Predictive and Proactive maintenance
programs which will maximize the availability of the analyzer as well as decrease
unnecessary verification and maintenance costs.
Precise control of low O 2
setpoints with confidence
CO detection for control interlocks and safety shutdown
Predictive diagnostics for maximum availability and integrity
SIL 2 capable for SIS implementation of IEC 61508/61511 into
the burner management system

WDG-V COMBUSTION ANALYZER SYSTEM
WDG-V COMBUSTION ANALYZER SENSOR
RANGES: O 2
0-1% to 0-100%
COMBUSTIBLES 0-1000ppm with overrange
0-2000ppm to 0-5%
HYDROCARBONS 0-1% to 0-5%
RESPONSE: O 2
90% < 11sec with
Flame Arrestors
ANALOG OUTPUT: (3) 4-20 mA
ALARM OUTPUT: (5) Dry Contact
PROCESS CONNECTION: 2”, 3” or 4” Flange
AMBIENT TEMPERATURE: -25°C to 65°C
DIGITAL INTERFACE: MODBUS RTU
ENCLOSURE:
Class I, Div II, Gp B, C, D / ATEX Zone 2, T3
POWER REQUIREMENT: 115 VAC, ±10%, 47-63 Hz, 740 VA
230 VAC, ±10%, 47-63 Hz
DIMENSIONS (LxWxD): 44.45 x 31.75 x 19.8 cm (17.5” x 12.5” x 7.8”)
WEIGHT:
20 kg (44 lbs.)
AMEVISION HMI
COMMUNICATION: 2-4 Wire MODBUS
DISPLAY:
4.2” Color 1/4W VGA with GUI
KEYPAD:
Alpha Numeric Membrane
ENCLOSURE:
Div 2, NEMA 4X (IP65)
POWER REQUIREMENT: 115 VAC
OUTPUTS:
2-4 Wire MODBUS RTU,
Configurable, Ethernet, RJ45
connection with Web Server
DIMENSIONS (LxWxD): 22.9 x 22.9 x 13.3 cm (9” x 9” x 5.25”)
REMOTE CALIBRATION UNIT (RCU)
GAS CAPABLE:
Aspirator Air (Span)
Optional Span O 2
Zero O 2
Combustible Span
Hydrocarbon Span
ENCLOSURE:
IP65, NEMA 4X
Class I, Div 2
POWER REQUIREMENT: None (Supplied from Analyzer)
CONSTRUCTION: 316SS, Hard Piped
DIMENSIONS (LxWxD): 26 x 31.2 x 13.3 cm (10.25” x 12.28” x 5.25”)

# COMPONENT SENSOR ENHANCEMENTS
1 Enclosure The Sensor enclosure size and weight has been reduced by over 30% and features a
hinged door IP65 enclosure as standard. Lightweight, high “R” value, blanket
insulation inside the enclosure insures sensor temperature stability throughout wide
ambient temperature cycles.
2 Sensor Heater Block High output single cartridge heater with improved thermal transfer radiant block
maintains internal sensor and enclosure temperature to 235°C with only a 30% duty
cycle leaving added capacity for extreme temperature environments.
3 Aspirator Block New Aspirator block design with increased orifice sizes reduce chances of particulate
interference. Instrument Air or Nitrogen drive gas consumption is reduced by over
20% while directing more process convective flow to the sensors. Analyzer response
time with sensor flame arresters is improved to levels of analyzers where no flame
arresters are installed.
4 Combustible Sensor Combustible and Hydrocarbon detectors are installed in a thermally controlled flow
block of substantial mass, independent of enclosure temperature, insuring precise
temperature stability of detectors, reducing the effects of thermal drift.
5 Flame Arrestors Flame arrestors are incorporated into the convection flow loop so as the may be
inspected or replaced in minutes. An upstream arrestor “cartridge” installed in the
combustible flow sensor block can be inspected or replaced in minutes without
disassembly of sensor piping.
6 Flow Sensor A flow sensor is incorporated into the sensor piping to detect and alarm when sensor
flow is reduced or stopped to insure the sample transport integrity to the
measurement sensors from inlet probe tip to exhaust port.
7 Zirconia Cell Furnace New cell furnace design reduces the size and susceptibility to vibration and
environmental effects. Redundant thermocouples for cell temperature measurement
improves reliability of the measurement. The re-orientation of the cell furnace
parallel to the combustible sensor block efficiently utilizes cell furnace heat for
maintaining combustible detector temperature stability.
8 Sensor Terminal
Enclosure
Modular snap in terminal strips with laser etched labels simplify wire connections.
Recessed electronics and bottom conduit connections eliminate problems due to
conduit stress, moisture egress, and improve the reliability and integrity of the sensor
connection in high radiant heat areas.

DIAGNOSTICS & AMEVISION HMI
• Sample Flow Verification
• Calibration History
• Cell & Detector Trending
• ‘End of Life’ Prediction of
Zirconium Oxide cell with
Warning
• Stability Indicator during
the Calibration Process
• Analog Output Verification
• Individual Controls of
Analog Outputs, Relays
• Time Stamped Alarm/
Event Log
• Trend Data Logging &
Access by USB Port
• Redundant Cell, Enclosure
& Electronics Temperature
Monitoring
AME V ISION
Display Unit Interface
Enables the convenience of site
calibration and communication
with the analyzer
• MODBUS RS485
• TCP/IP Ethernet
• USB Port
• 4.2” color VGA display

CONFIGURATION 1: SENSOR - STAND ALONE, BPCS OR LOGIC
SOLVER COMMUNICATION
CONFIGURATION 2: STAND ALONE SENSOR WITH AMEVISION HMI
CONFIGURATION 3: MULTI-SENSOR with AMEVISION HMI
ETAPII
150 Freeport Road, Pittsburgh, PA 15238
Ph. +1-412-828-9040, Fax +1-412-826-0399
www.ametekpi.com
ETA Process Instrumentation
119 Foster Street, Bldg #6 • Peabody, MA 01960
Tel: (978) 532-1330 • Fax: (978) 532 7325
www.etapii.com • sales@etapii.com
© 2013, by AMETEK, Inc.
All rights reserved. Printed in the U.S.A.
F-0409 Rev. 1 (0313)