WDG IVC, IVM, IVCM (IQ Series)0 pages

WDG IVC/IQ oxygen & combustibles
WDG IVM/IQ oxygen & methane
WDG IVCM/IQ oxygen, combustibles & methane

THERMOX

®

PROCESS INSTRUMENTS

smart flue gas analyzers

Close-coupled extractive design for fast response in a wide range of flue gas
applications up to 3000°F (1648°C). Completely field serviceable.
SPECIFICATIONS

Principle of Operation: Zirconium oxide for net
oxygen measurement and catalytic detectors for
both combustibles and methane.

Environment:

Output Range:
Oxygen: From 0-1% to 0-100%
Combustibles: From 0-2,000 ppm to 0-10,000 ppm
or from 0-1% to 0-5%
Methane: From 0-1% to 0-5%

Operating Temp.: -20°C to 85°C (See Note 1)

Ambient Temp.: -5°F to 150°F (-20°C to 65°C);
-5°F to 140°F (-20°C to 60°C) with Div. 2 Option
Relative Humidity: 10% to 90%, non-condensing
Power Requirements (WDG IVCM/IQ):
115 VAC, ±10%, 47-63 Hz, 740 VA max. (750 VA
max. floor mount version); 230 VAC, ±10%,
47-63 Hz, 1990 VA max. (2000 VA max. floor
mount version)

Accuracy:
Oxygen: ±0.75% of measured value or ±0.05% O2,
whichever is greater
Combustibles: ±2% of full scale output range
Methane: ±5% of full scale output range

Calibration: Oxygen cell lifetime extender.
Calibrate or verify calibration. Store last
calibration and verification data. Selectable
calibration gas run time and process recovery
time. Timed automatic calibration with optional

Response - Oxygen: 90% of a step change <  3 sec.
1
Drift: < 0.1% of cell output per month; < 0.005% O2
with 2% O2 applied

Remote Calibration Unit.

Aspirator Air Requirements: 10 to 20 scfh (4.72 to
9.4 L/min) at 15 to 100 psig (1.05 to 7.04 kg/cm2)
Max. Flue Gas Temp./Probe Types/Probe 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 -152 cm)
Max. Sample Dewpoint: 392°F (200°C) standard
Alarms: Three dry contact alarms. Alarms can be set to oxygen,
high combustibles and high methane. One can be set to start-ofcalibration, start-of-verify, or both.
Contact Rating: 1 A, 30 V max., non-inductive load, AC or DC
Diagnostics: Watchdog timer and service alarm (trouble alarm).
System test for A/D, RAM, and EEPROM. Twenty-entry event log.
Communications: RS-485, RS-232 (IQ Links), HART® Option
available.
Analog Output: Three isolated linear current outputs. Select O2,
combustibles, methane, cell temperature, thermocouple mV or cell
mV. Each output can be 4-20 mA, 0-20 mA, 20-4 mA or 20-0 mA
and is fully scalable. Hold or track during cal and select degree of
damping. Maximum load 1100 ohms.
Sample Pressure: ±10 in. water gauge

Calibration Gas Requirements: For sensors
without flame arresters use calibration gases @
10 PSIG, 1.5 SCFH (0.7 L/min.)
For sensors with flame arresters use calibration gases @ 10
PSIG, 2 SCFH (1 L/min.)
Note: Flame arresters are standard in all certified Div. 2 and
ATEX analyzers
O2 Span Gas: Air or from 1.0 to 100% O2, balance N2
O2, Comb. & CH4 Zero Gas: 2% or from 0.1 to 10% O2, balance N2
Comb. Span Gas (WDG IVC/IQ & WDG IVCM/IQ): 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
CH4 Span Gas (WDG IVM/IQ & WDG IVCM/IQ): 2% CH4, 8 to
10% O2, balance N2
System Compliance:
EMC Compliance: 2004/108/EC
Safety Compliance: 73/23/EEC

OPTIONAL

Enclosure: Lift-off NEMA 3R, weather resistant, stainless steel.
IQ Link provides a local interface to set up and display system
Optional: hinged NEMA 4X (IP56), purged, and floor mount versions parameters, initiate calibrations, initiate system tests, and
available.
trouble-shooting. Handheld or dedicated wall mount versions
available. Refer to Bulletin P-620 for more IQ Link information.

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