Question 1

35K0104R0, NOx Detector 0-800ppm CLD 200 cc/min, Replaces Rosemount 659754 and Tyco 1021326-100-TES

cms_admin · Accepted Answer

If you've stumbled on to this FAQ, you must have a Rosemount NGA-2000 CLD analyzer to measure NOX either dry or wet (referring to the WCLD version). The detector portion of this analyzer is OEM p/n: 659754 (obsolete) and is sold by us under this part number: 35K0104R0. It is the same OEM detector and fully compatible with your NGA-2000 or uCEMS. I'd like to point out that this detector assembly is COMPLETELY repairable and should never be discarded. Here’s why:

1. If the capillary gets clogged:

• Unclog it or solder in a new one

2. If the heaters fail open:

• Replace the heaters

3. If the resettable fuse fails open:

• Replace the fuse

4. If the barrier window gets cracked/busted:

• Replace the window

5. If the temperature sensor goes bad:

• Replace it

6. If the reaction chamber leaks:

• Replace the bad seal (or both seals)

7. If a pin breaks off or a wire opens in the harness:

• Fix the harness

8. If the metal barrel rusts through (this has never happened, but there’s always a first time):

• Replace the housing

9. If the photosensor gets weak or dies completely:

• Replace the sensor

• This is the most challenging aspect as the OEM wants about $8000 for this chip; and, most of the time, it’s the barrier window that gets clouded/stained from the ozone- NO reaction; we don’t change out very many sensor chips.*

10. If the photosensor won't cool down to 1°C, it might be a bad Peltier section of the chip -or- most likely, it's a bad Darlington Pair power transistor (mounted on the aluminum divider panel).

Important: *We’ve been fixing about two of these per year for the past 20 years. Don't listen to the rumors that you can't procure a NGA-2000 CLD detector assembly, we can get them or repair them.*

Question 2

CEMS & Opacity Monitor Field Service Engineer - Experience Required Wooster, OH

cms_admin · Accepted Answer

Company Overview RIGAS (Runyan Industrial Gas Analyzers, Inc.) is a leading provider of environmental monitoring solutions, specializing in Continuous Emission Monitoring Systems (CEMS) and Continuous Opacity Monitoring Systems (COMS). With over 20 years in the industry, we are a partner to a wide range of industries including power generation, petrochemical, and manufacturing. Compensation & Benefits Job type: Full-time, hourly. Wage: $35-$45 per hour. Location Base: Wooster, OH Why should you work for us?

Your typical work week will be 3-4 days on the road and home on the weekends.
You will keep your hotel and airline points to use personally.
You will receive competitive pay and benefits.
Your family and personal time will be respected.
You will be an important member of our team.

Benefits:

Health, Dental, and Vision Insurance.
Disability and Life insurance.
Paid time off.
Investment-matching retirement program.
Company provided cell phone.
Maximum IRS mileage reimbursement (for company related travel).
Flexible schedule.
Company credit card provided for work related expenses.
Employees keep their hotel/airline reward points.

Key Responsibilities:

Perform maintenance, troubleshooting, repairs, and audits at customer sites for various process and environmental analyzers such as O₂, CO, CO₂, O₂, NH₃, NOx, and SO₂ analyzers, as well as opacity monitors.
Troubleshooting and repair will include the disassembly, inspection, replacement and testing of mechanisms and circuitry for failures and defects as well as the determination of repair requirements, obtaining necessary parts, performing necessary functional/operational/compliance testing and documentation.
Perform Federal and Regional compliance audits in the form of:
- COMS TITLE V audits and
- CEMS CGAs at quarterly and annual intervals; to include any associated preventive maintenance.
Update parameters of the data acquisition system after maintenance, repairs, and/or audit activities.
Perform installation, startup, and commissioning of CEMS and COMS. Including installation inspection, initial power up testing, calibrations, and U.S. and Regional EPA testing and certifications.
Retrofit, upgrade, and/or replace existing analyzer and monitor systems to Include: sample probes, heated sample line, wiring, tubing, and hardware.
Provide technical support to customers via telephone and digital interface over the internet.
Travel primarily during weekdays. Overnight travel up to 75% is required. Occasional weekend and holiday travel may be required.
Provide support to our repair depot in Wooster, Ohio when not in the field.

Experience and Skills Required:

Minimum three (3) years process gas analyzer, COMS, or CEMS troubleshooting and repair experience on major manufacturer equipment (Teledyne, Rosemount, Procal, Servomex).
Minimum three (3) years field service experience.
Two or four years industrial electronics and/or industrial instrumentation degree or certificate, or military electronics or instrumentation schooling.
Knowledge and understanding of 40 CFR part 60 and 40 CFR part 75 with the ability to communicate requirements to customer personnel.
Strong troubleshooting skills demonstrated in previous jobs including 4-20 mA signal loops and DC circuits. Component level circuit board troubleshooting a plus.
Knowledgeable of fluid (gas) pressures and flows.
Proficient in use of multi-meters, loop calibrators, valves, regulators, pressure sensors, flow sensors, and the application of additional electronic test equipment.
Ability to read and interpret electrical and flow schematic diagrams.

Other Requirements:

Valid driver’s license and driving history acceptable to the company insurance carrier.
Able to pass a background check, and drug & alcohol screening, to include frequent customer required tests and random company testing.
Able and willing to climb ladders and work at heights of +200 feet.
Willingness to work outdoors in a variety of weather conditions.
Clear vision and ability to identify and distinguish colors.
Must be able to lift more than 50 lbs., climb stairs and ladders, kneel, crouch, stoop, and crawl.
Valid Permanent US work authorization (not requiring sponsorship).

Question 3

List of common CLD issues

cms_admin · Accepted Answer

1. The ozone lamp will die after many years of service

• but along the way, it will begin to decrease its ozone (O₃) production and you WILL experience Ozone Starvation (see other FAQ)

• The ozone lamp power supply might live long enough to power two or three lamps

2. The Darlington Pair power transistor that controls current to the sensor chip’s Peltier cooler will fail:

• sometimes the Peltier chip pulls too much current;

• sometimes a technician will unplug and re-plug the Darlington cable and blow the transistor (I’ve done this at least once);

• sometimes due to age

3. When reassembling, technicians can cause stress on the ACU02 (the CPU / controller board that sits on top of the BPR [backpressure regulator]) by not routing the ribbon cables neatly; this will break solder connections on some very sensitive chips causing hard failures (digital faults) or the very frustrating intermittent failures. 4. The capillary will foul, causing a loss of sensitivity. 5. The heaters in the reaction chamber are covered with thermite paste; the paste will dry out over time causing poor thermal conduction. This could induce an instability in the temperature control of the "block" (the upper region of the reaction chamber); and this could induce variations in zero, span, and process readings (sample analysis). 6. [later] 7. [later]

Question 4

How does the 400A work?

cms_admin · Accepted Answer

The 400A Flame Ionization Detector (FID) THC analyzer tests for the presence and concentration of HC compounds in a continuous gaseous sample by combining the sample with a fuel gas stream, ionizing the present hydrocarbons through combustion, and then measuring proportional charge produced by the presence of the ionized hydrocarbons in the sample.

Question 5

What is THC?

cms_admin · Accepted Answer

Total Hydrocarbon (THC) is a measurement of the hydrocarbon content (aggregated, not specific to an individual HC compound) concentration in a measured sample.

Model 1054 / A		Status discontinued … dissolved oxygen analyzer, discontinued feb 1991
315		discontinued … infrared analyzer, discontinued 1975
315B		discontinued … infrared analyzer, discontinued 1975
320 / 620		discontinued … process gas chromatograph, discontinued nov 1992
340		TRACE MOISTURE ANALYZER
340 Ex-Proof		discontinued … trace moisture, discontinued aug 1989 (although it can be a “special”)
340 Portable		discontinued … trace moisture, discontinued circa ??? (use standard 340TMA/SS as the equivalent replacement)
400		HYDROCARBON ANALYZER, discontinued June 1984. This is probably labeled as Beckman. It is a heavy analyzer due to the metal box, has an analog display, and an “eye” for a flame status indicator.
400A		HYDROCARBON ANALYZER. This one comes in a variety of versions: it might say Beckman on the front; it might have a notched case; it might have a 24 VDC DIN rail mounted power supply.
402		discontinued … FID (use 400A, NGA-FID, NGA-FID2), discontinued ?
402		HI TEMP HYDROCARBON ANALYZER; discontinued in ?? Contact for more info
402RS		discontinued … Heated Hydrocarbon (use NGA HFID), discontinued Oct 1997
402RS		HI TEMP HYDRO CARBON ANALYZER
404		discontinued … Heated Hydrocarbon (use NGA HFID), discontinued Oct 1997
404		HEATED HYDROCARBON ANALYZER
415		discontinued … infrared analyzer, discontinued 1978
6100		Analyzer Flow Control Module
6200		Pressure Regulating System
6300		Heated Sample Gas Conditioning System
6400		Zero Air/Dry Air Generation System
6500		Multi-Purpose Sample Gas Conditioning System
6700		discontinued … Process gas chromatograph, discontinued sept 1976
6710		discontinued … Process gas chromatograph, discontinued nov 1995
6750		discontinued … Process gas chromatograph, discontinued nov 1995
7001		discontinued … Polarographic Oxygen Analyzer, discontinued May 1996
7001D		OXYGEN ANALYZER
7002		discontinued … Polarographic Oxygen Analyzer, discontinued May 1996
7002D		discontinued … Polarographic Oxygen Analyzer, discontinued Dec 1991
7002D		DISSOLVED OXYGEN MONITOR
7003		discontinued … Polarographic Oxygen Analyzer, discontinued May 1976
7003D		OXYGEN ANALYZER
7003M		OXYGEN ANALYZER
7004		discontinued … Trace Oxygen, discontinued Apr 1992
7005		discontinued … Oxygen Monitor, discontinued Jun 1990
715		discontinued … polarographic oxygen analyzer, discontinued nov 1995
735 / 735X		discontinued … polarographic oxygen analyzer, discontinued 1982
741		discontinued … polarographic oxygen analyzer, discontinued dec 1989
742		polarographic oxygen, discontinued some time in the 1980s
743		discontinued … oxygen sample handling system (discontinued dec 1989? Still selling this as of 3/16/00)
755		PARAMAGNETIC OXYGEN ANALYZER
755A		PARAMAGNETIC OXYGEN ANALYZER
755EX		OXYGEN ANALYZER EXPLOSION PROOF
755R		OXYGEN %
7750		discontinued … Gas Chromatograph, discontinued ?
7C		THERMAL CONDUCTIVITY ANALYZER, discontinued Jan 92
7CEX		THERMAL CONDUCTIVITY ANALYZER, discontinued jan 92
7D		EXPLOSION PROOF ANALYZER
815		NON-DISPERSED INFRARED ANALYZER
864		INFRARED ANALYZER, discontinued feb 1991
865		NON DISPERSED INFRARED ANALYZER, discontinued feb 1991
865EX		EXPLOSION PROOF ANALYZER
866		AMBIENT CO MONITOR, with auto zero span module, discontinued oct 1988
867		INFRARED CO ANALYZER, discontinued july 1992
868		discontinued … Non-dispersive infrared (use 880A, NGA-NDIR), discontinued Oct 1997
870		discontinued … Non-dispersive infrared (use 880A, NGA-NDIR), discontinued Oct 1997
880		NON-DISPERSED INFRARED ANALYZER
880-1		NON-DISPERSED INFRARED ANALYZER (SOFTWARE UPGRADE)
880-2		NON-DISPERSED INFRARED ANALYZER (FULL UPGRADE)
880A		NON-DISPERSED INFRARED ANALYZER
880AL		NON-DISPERSED INFRARED ANALYZER; long case
880AS		NON-DISPERSED INFRARED ANALYZER; short case
890		SO2 ANALYZER
915A		TOTAL ORGANIC CARBON ANAYLZER
915B		TOTAL ORGANIC CARBON ANALYZER
951		NO/NOX CHEMILUMINESCENCE ANALYZER, discontinued Mar 1980
951A		NO/NOX CHEMILUMINESCENCE ANALTZER
951C		NOX ANALYZER
951E		NO CHEMILUMINESCENCE ANALYZER, discontinued Nov 1995
955		discontinued … Heated Nox (use NGA Wet CLD), discontinued Oct 1997
958		NOx convertor efficiency tester . . . (use Environics unit, Tolland, CT; 860-872-1111 [or www.environics.com] or TECO-1000), discontinued Oct 1997
BCU		researching: seems to be some sort of external gizmo similar to a PLC (but years earlier in technology)
CALIBRATION RAIL		CALIBRATION
CAT		CONTINOUS ANALYZER TRANMITTER
CAT-100		CONTINOUS ANALYZER TRANMITTER – BINOS based; explosion proof
CAT-200		CONTINOUS ANALYZER TRANMITTER – MLT based; explosion proof
COA2000		ORGANIC ANALYZER
COA2100 or 2100A		ORGANIC ANALYZER, uses Fuji bench (possibly the 8211 or 8212)
CVS		CONSTANT VOLUME SAMPLER
D2		old beckman oxygen analyzer? (this information has NOT been fully researched)
DETEK1		COMBUSTIBLES MONITOR
F3		discontinued … oxygen analyzer, discontinued 1972
GCR		GAS CHROMATOGRAPH – rack mountable; not explosion proof
GCX		GAS CHROMATOGRAPH
INSTALLATION RAIL		INSTALLATION
MICROTOX		discontinued … toxic contaminant monitor, discontinued 1980
NGA2000		Next Generation Analyzer
NGA2000 CLD		Next Generation Analyzer
NGA2000 FID		Next Generation Analyzer
NGA2000 HFID		Next Generation Analyzer
NGA2000 I/O MODULES		Next Generation Analyzer
NGA2000 MLT		Next Generation Analyzer
NGA2000 NDIR		Next Generation Analyzer
NGA2000 NDIR MODULES		Next Generation Analyzer
NGA2000 PLATFORMS		Next Generation Analyzer
NGA2000 PMD MODULES (Fast Response PMD; FR-PMD)		Next Generation Analyzer
NGA2000 PMD MODULES (PMD1)		Next Generation Analyzer
NGA2000 PMD MODULES (PMD2)		Next Generation Analyzer
NGA2000 POWER SUPPLY		Next Generation Analyzer
NGA2000 RMD MODULES		Next Generation Analyzer
NGA2000 WCLD		Next Generation Analyzer
NGA2000 WET NOX		Next Generation Analyzer
NOXTEST		INDUSTRIAL NOX EFFIC TESER; a.k.a., model 958
OM11		discontinued … OXYGEN ANALYZER, discontinued nov 1995
OM11EA		OXYGEN ANALYZER, discontinued nov 95
OM15		discontinued … OXYGEN ANALYZER, discontinued nov 1995
PANEL		ANALYTICAL PANEL EQUIPMENT

ST-43		cems controller?

TOC2100		TOTAL ORGANIC CARBON ANALYZER

VOC		VOLATILE ORGANIC CARBON
ZFP7FIJI		IR DETECTION MODULE