WDG V0 pages

WDG-VCM

THERMOX

®

PROCESS INSTRUMENTS

flue gas oxygen, combustibles & hydrocarbon analyzer

Close-coupled extractive design for fast response in a wide range of flue gas
applications up to 3000°F (1648°C). Completely field serviceable.
SENSOR
Principle of Operation: Zirconium
oxide for net oxygen measurement and dual hot-wire catalytic
detectors for both combustibles
and methane.
Output Range:
Oxygen: From 0-1 to 0-100%
Combustibles: 0-1000 PPM with
Overrange
0-2,000 PPM to 0-10,000 PPM,
0-2 to 0-5%
Hydrocarbon: 0-5%

Accuracy:
Oxygen: ±0.75% of measured
value or ±0.05%, whichever is greater
Combustibles: ±2% of full scale output range
Hydrocarbon: ±5% of full scale output range

Diagnostics: Low Sample Flow, Cell & Detector age tracking, Cell resistance, Calibration required, Analog current
verification
Calibration: Calibrate or verify calibration.
Stored calibration and verification data. Selectable
calibration gas run time and process recovery time. Timed
automatic calibration with optional Remote Calibration Unit.
Sample Pressure: ±6 in. water gauge
Max. Sample Dewpoint: 392°F (200°C)
Max. Flue Gas Temp. / Probe Type / Lengths:
1300°F (704°C) / 316 SS / 36” - 108”(91 cm - 274 cm)
1875°F (1024°C) / 310 SS / 36” - 108”(91 cm - 274 cm)
3000°F (1648°C) / Hexoloy® / 24” - 72” (60 cm - 182 cm)
Environment:
Ambient Temp.: -25°C to 65°C
Relative Humidity: 10% to 90%, non-condensing

Response:
Oxygen: 90% of a step change < 11 seconds with Flame Arrestors
Combustibles & Hydrocarbon: 90% of a step change < 20 seconds
with Flame Arrestors

Enclosure: Hinged IP65 (NEMA 4X), weather resistant,
stainless steel, explosion-proof, purged, and floor mount
versions available.
UL Class I, Div II, Gp B, C, D or ATEX Zone 2, T3 with Purge

Aspirator Air Requirements: 3 SCFH Typical at 3 to 6 psig,
Instrument air or Nitrogen

Power Requirements: 115 VAC, ±10%, 47-63 Hz, 740 VA
max.; 230 VAC, ±10%, 47-63 Hz, 1950 VA max.

Analog Output: Three isolated linear current outputs for O2,
combustibles and hydrocarbon. Each output can be 4-20 mA,
0-20 mA, 20-4 mA or 20-0 mA and is fully scalable.
NAMUR Configurable. Hold or track during calibration.
Max. load 1200 Ω

Calibration Gas Requirements: Use calibration gases @
10 psig, 1.5 SCFH (0.7 L/min.)
O2 Span Gas: Air or from 1.0% to 100% O2, balance N2
O2, Comb. & CH4 Zero Gases: From 0.1 to 10% O2,
balance N2
Comb. Span Gas: 60 to 80% (PPM ranges) or 40% to 60%
(% ranges) of the selected comb. recorder output range in
certified equal mixtures of CO + H2, 3-4% O2, balance N2

Alarms: Five independent, NO alarms
Set relays to energize or de-energize on alarm
Contact Rating: 0.5A, 30V, 10VA max. non-inductive load, AC or DC
Digital Communication: 2 wire MODBUS RTU, 57.6 KBaud

Hydrocarbon Span Gas: 2% CH4, 8% to 10% O2, balance N2

Configuration: MODBUS RTU, AMETEK configuration software, or
AMEVISION HMI

AMEVISION HMI
Display: 4.2” Color 1/4W VGA with Graphical
User Interface. Password protected.

Analog Outputs: Optional

Keypad: 18 key, Membrane

Environment:
Ambient Temp.: -25° to 60°C

Input: 2 wire MODBUS RTU from Sensor.
Host capable up to 4 sensors

Power Requirements: Nominal 115-230 VAC ±10%,
47-63 Hz, 75 VA max.

Digital Outputs: 2 or 4 wire MODBUS RTU,
TCP/IP Ethernet with embedded Web Server
(RJ45 connection), USB Port for Data collection or software update.

Enclosure: Division 2, Zone 2, IP65 (NEMA 4X)
System Compliance:
EMC Directive 2004/108/EC
Low Voltage Directive 73/23/EEC

www.ametekpi.com