Rosemount Manual: 2100A Process Total Organic Carbon TOC Analyzer-Rev E | Rosemount Manuals & Guides

Rosemount Analytical

M

ODEL

P

ROCESS TOTAL ORGANIC CARBON

A

NALYZER

I

NSTRUCTION MANUAL

2100A

748263-E

OTICE

N

The information contained in this document is subject to change without notice.

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Caplugs

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is a registered trademark of Saint-Gobain Performance Plastics

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Manual Part Number 748263-E
March 2001
Printed in U.S.A.

Rosemount Analytical Inc.

4125 East La Palma Avenue

Anaheim, California 92807-1802

C

ONTENTS

PREFACE .................................................................... P1

SAFETY SUMMARY ..........................................................................................P1

SPECIFICATIONS - OPERATIONAL.................................................................P4

SPECIFICATIONS - PERFORMANCE...............................................................P4

SPECIFICATIONS - SAMPLE REQUIREMENTS..............................................P4

SPECIFICATIONS - AMBIENT REQUIREMENTS.............................................P5

SPECIFICATIONS - DATA OUTPUT.................................................................P5

SPECIFICATIONS - UTILITY REQUIREMENTS ...............................................P5

SPECIFICATIONS - PHYSICAL.........................................................................P6

SPECIFICATIONS - OPTIONAL TYPE Z PURGE.............................................P6

CUSTOMER SERVICE, TECHNICAL ASSISTANCE AND FIELD SERVICE.............P7

RETURNING PARTS TO THE FACTORY.........................................................P7

TRAINING ......................................................................................................P7

DOCUMENTATION............................................................................................P7

S

ECTION

1.1 SYSTEM DESCRIPTION ............................................................................1

1.2 TYPICAL APPLICATIONS...........................................................................1

1.3 PRINCIPLE OF OPERATION......................................................................2

1. I

NTRODUCTION

.............................................. 1

SECTION 2. INSTALLATION............................................... 4

2.1 GENERAL INFORMATION .........................................................................5

2.2 SAMPLE CONDITIONING...........................................................................5

2.3 LOCATION..................................................................................................5

2.4 UTILITIES AND SUPPLIES .........................................................................6

2.4.1 ELECTRICAL CONNECTIONS .....................................................6

2.4.1.1 Power.............................................................................6

2.4.1.2 Signal.............................................................................6

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

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2.4.1.3 Alarm............................................................................. 6

2.4.2 GAS, LIQUID CONNECTIONS ..................................................... 6

2.4.2.1 Sample In...................................................................... 6

2.4.2.2 Sample Drain................................................................. 8

2.4.2.3 Reagent......................................................................... 8

2.4.2.4 Standard......................................................................... 8

2.4.2.5 Carrier Gas..................................................................... 8

2.4.2.6 Vent................................................................................ 9

2.4.2.7 Waste ............................................................................. 9

2.4.2.8 Condensate Trap Drain................................................. 9

2.5 INSTALLATION........................................................................................... 10

2.5.1 Mounting Instrument...................................................................... 10

2.5.2 Electrical ..................................................................................... 10

2.5.2.1 Power............................................................................. 10

2.5.2.2 Signal.............................................................................. 10

2.5.2.3 Alarm.............................................................................. 13

2.5.3 Piping ..................................................................................... 14

2.5.3.2 Drain............................................................................... 14

2.5.3.3 Standard........................................................................ 15

2.5.3.4 Reagent......................................................................... 15

2.6 OPTIONAL TYPE Z PURGE....................................................................... 15

SECTION 3. INITIAL START-UP..........................................16

3.1 START-UP PROCEDURE.......................................................................... 17

SECTION 4. OPERATION AND MAINTENANCE.....................22

4.1 OVERVIEW................................................................................................. 23

4.2 PREPARING REAGENT............................................................................. 24

4.3 REPLACING PUMP TUBES....................................................................... 26

4.4 CALIBRATION CHECK............................................................................... 28

4.5 IR ZERO, SPAN CHECK............................................................................ 30

4.6 TOC ZERO, SPAN CHECK........................................................................ 32

4.7 SEDIMENT REMOVAL............................................................................... 34

4.8 PUMP MOTOR BEARINGS........................................................................ 34

4.9 TOC ALARM............................................................................................... 34

4.10 PREPARATION FOR SHIPMENT............................................................ 35

4.11 CLEANING INFRARED ANALYZER OPTICAL UNIT............................... 38

4.12 CLEANING CONDENSATE TRAP ........................................................... 39

ii

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

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SECTION 5. PREPARATION OF STANDARDS ...................... 41

5.1 STANDARDS PREPARATION....................................................................41

5.2 BACKGROUND TOC COMPENSATION ....................................................43

SECTION 6. CIRCUIT DESCRIPTIONS ................................. 47

6.1 GENERAL ...................................................................................................47

6.2 INPUT SIGNAL CONDITIONER..................................................................47

6.3 LINEARIZER................................................................................................ 47

6.4 ZERO AND SPAN .......................................................................................47

6.5 RECORDER OUTPUTS..............................................................................47

6.6 ALARM OUTPUT.........................................................................................48

6.7 DISPLAY .....................................................................................................48

6.8 POWER SUPPLY........................................................................................48

SECTION 7. TROUBLESHOOTING....................................... 49

S

ECTION 8. REPLACEMENT PARTS................................... 59

8.1 RECOMMENDED SPARE PARTS..............................................................59

8.2 REPLACEMENT PARTS (NUMERICALLY)................................................60

8.3 REPLACEMENT PARTS (ALPHABETICALLY)...........................................62

GENERAL PRECAUTIONS FOR HANDLING & STORING HIGH PRESSURE CYLINDERS
WARRANTY
FIELD SERVICE AND REPAIR FACILITIES

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

iii

ONTENTS

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FIGURES

1-1. Simplified Model 2100A Flow Diagram (TOC Version).............................. 3

1-2. Simplified Model 2100A Flow Diagram (TC Version)................................. 3

2-1. Inner Compartment.................................................................................... 7

2-2. Electrical Connection to PC Board............................................................. 7

2-3. Inner Panel Layout..................................................................................... 11

2-4. Opening Control Panel (loosen two panel fasteners)................................. 12

2-5. Block Wiring Diagram (115VAC)................................................................ 12

2-6. Block Wiring Diagram (230VAC)................................................................ 13

2-7. Purge Option Mounting.............................................................................. 16

3-1. Alarm Readout Button (press and hold while adjusting setpoint)............... 21

4-2. Removing Pump Head............................................................................... 27

4-3. Remove Old Pump Tube ........................................................................... 27

4-4. Connecting New Pump Tube..................................................................... 27

4-5. Fastening Tube Ends................................................................................. 27

4-6. Engaging Pump Shaft................................................................................ 27

4-7. Installing New Pump Tube......................................................................... 27

4-8. Positioning Pump Tube.............................................................................. 29

4-9. Installing Pump Head................................................................................. 29

4-10. Installing Knurled Screws......................................................................... 29

4-11. Straightening Pump Tube ........................................................................ 29

4-12. Set Switch to IR CAL ............................................................................... 31

4-13. Injecting Zero Gas.................................................................................... 31

4-14. Adjusting IR ZERO to 000........................................................................ 31

4-15. Injecting Span Gas................................................................................... 31

4-16. Adjusting IR SPAN Value......................................................................... 31

4-17. Set IR Switch To Normal.......................................................................... 31

4-18. Reagent Pump Switch ............................................................................. 32

4-19. Adjusting TOC ZERO............................................................................... 33

4-20. Sample Selector Valve............................................................................. 33

4-21. Turning Reagent Pump ON...................................................................... 33

4-22. Adjusting TOC SPAN............................................................................... 33

4-23. Infrared Analyzer Optical Unit - Exploded View....................................... 38

4-24. Condensate Trap Assembly..................................................................... 39

T

ABLES

iv

4-1. Application Data......................................................................................... 25

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

DRAWINGS (LOCATED IN REAR OF MANUAL)

655369 Outline and Mounting Dimensions, Model 2100A
655376 Piping Diagram, Model 2100A
660871 Block Wiring Diagram, 230VAC
660872 Block Wiring Diagram, 115VAC
837484 Schematic Diagram, Model 2100A
837519 Type Z Purge Option

ONTENTS

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748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

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P

REFACE

SAFETY SUMMARY

To avoid explosion, loss of life, personal injury and damage to this equipment and
on-site property, all personnel authorized to install, operate and service the Model 340
Trace Moisture Analyzer should be thoroughly familiar with and strictly follow the
instructions in this manual. Save these instructions.

DANGER is used to indicate the presence of a hazard which will cause severe
personal injury, death, or substantial property damage if the warning is ignored

WARNING is used to indicate the presence of a hazard which can cause severe
personal injury, death, or substantial property damage if the warning is ignored.

CAUTION is used to indicate the presence of a hazard which will or can cause minor
personal injury or property damage if the warning is ignored.

NOTE is used to indicate installation, operation, or maintenance information which is
important but not hazard-related.

WARNING: ELECTRICAL SHOCK HAZARD

Do not operate without doors and covers secure. Servicing requires access to
live parts which can cause death or serious injury. Refer servicing to qualified
personnel.

For safety and proper performance this instrument must be connected to a
properly grounded three-wire source of power.

Alarm switching relay contacts wired to a separate power source must be
disconnected before servicing.

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

P1

REFACE

P

WARNING: POSSIBLE EXPLOSION HAZARD

This analyzer is of a type capable of analysis of sample gases which may be
flammable. If used for analysis of such gases, the detection section of the
analyzer must be either in an explosion proof enclosure suitable for the hazard
classification of the gas, or protected by a continuous dilution purge system in
accordance with Standard ANSI/NFPA-496-1986 (Chapter 8) or IEC Publication
79-2-1983 (Section Three).

If explosive gases are introduced into this analyzer, the sample containment
system must be carefully leak checked upon installation and before initial
startup, during routine maintenance and any time the integrity of the sample
containment system is broken, to ensure that the system is in leak proof
condition. Leak check instructions are provided in Section 4.2.

Internal leaks resulting from failure to observe these precautions could result in
an explosion, causing death, personal injury or property damage.

WARNING: HIGH PRESSURE GAS CYLINDERS

Fuel, air and calibration gas cylinders are under pressure. Mishandling of gas
cylinders could result in death, injury or property damage. See General
Precautions for Handling and Storing High Pressure Cylinders, in the rear of this
manual.

CAUTION: PARTS INTEGRITY

Tampering or unauthorized substitution of components may adversely affect
safety of this product. Use only factory documented components for repair.

P2

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

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WARNING: MERCURY HAZARD

The ultraviolet light generating lamp contains mercury. Lamp breakage could
result in mercury exposure. Mercury is highly toxic if absorbed through the skin
or ingested, or if the vapors are inhaled.

Handle lamp assembly with extreme care. If lamp if broken, avoid skin contact
and inhalation in the area of the lamp or the mercury spill.

]Immediately clean up and dispose of the mercury spill and lamp residue as
follows:

• Wearing rubber gloves and goggles, collect all droplets of mercury by

means of a suction pump and aspirator bottle with a long capillary tube.
(Alternatively, a commercially available mercury spill clean up kit, such
as J.T. Baker product No. 4439-01, is recommended.)

• Carefully sweep any remaining mercury and lamp debris into a dust

pan.

• Carefully transfer all mercury, lamp residue and debris into a plastic

bottle which can be tightly capped.

• Label and return to hazardous material reclamation center.

• Do not place in trash, incinerate or flush down sewer.

• Cover any fine droplets of mercury in non-accessible crevices with

calcium polysulfide and sulfur dust.

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

P3

REFACE

P

S

PECIFICATIONS

- O

PERATIONAL

PRINCIPLE

Ultraviolet/persulfate oxidation to CO2

D

ETECTION METHOD

Non-Dispersive Infrared (NDIR)

TOC RANGE - SINGLE RANGE (PPM CARBON)

0 to 2 0 to 5 0 to 10
0 to 20 0 to 50 0 to 100
0 to 200 0 to 500 0 to 1000
0 to 2000 0 to 5000

SPECIFICATIONS - PERFORMANCE

R

EPRODUCIBILITY

1

R

ESPONSE TIME

±2% fullscale

Less than 5 minutes for 90% of fullscale for most ranges

SPECIFICATIONS - SAMPLE REQUIREMENTS

F

LOW RATE SAMPLE INLET

50 to 2000 ml/min. depending on sample availability and response required

F

LOW RATE SIDE STREAM

1.1 to 15 ml/min. depending on reactor range

I

NLET PRESSURE

Constant 2 psig minimum, 15 psig maximum at sample inlet

T

EMPERATURE

35°F to 160°F (2°C to 71°C)

S

USPENDED SOLIDS

Sample must be free of particles larger than 100 micro ns

C

HLORIDES

Up to 1000 ppm (wt)

1

±5% for 0 to 2, 0 to 500, and 0 to 5000 ppm. For better reproducibility, consult factory. Absolute accuracy of analysis

depends upon the accuracy of the calibration standards.

P4

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

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S

PECIFICATIONS

TEMPERATURE

35°F to 122°F (2°C to 50°C)
Protect from heating effect of direct sunlight

H

UMIDITY

0 to 90% relative humidity

S

PECIFICATIONS

L

OCAL READOUT

Electroluminescent backlighted liquid crystal display (LCD) reading of organics
in ppm (carbon)

A

NALOG OUTPUT

– S

Voltage Output: 0 to 1 VDC; 0 to 10 mV DC

A

NALOG OUTPUT

– O

Current Output: 4 to 20 mA DC isolated, 500 ohm load maximum

A

LARM

Single 100% adjustable, high or low, DPDT 10A, 240 VAC (30 VDC) relay
contacts

- A

- D

TANDARD

PTIONAL

MBIENT REQUIREMENTS

ATA OUTPUT

SPECIFICATIONS - UTILITY REQUIREMENTS

P

OWER

P

OWER

C

ARRIER GAS

D

RAIN

V

ENT

R

EAGENT

– S

TANDARD

115 VAC ±10%, 50/60 Hz, 1 phase, 3 amps, 350 watts

– O

PTIONAL

230 VAC ±10%, 50/60 Hz, 1 phase, 1.5 amps, 350 watts

200 to 500 scc/min. nitrogen, 1/8-inch tubing (see Table 4-1 for pressure)

Open atmospheric: 1/2-inch minimum inner diameter
2 L/min. maximum, 1/2-inch NPT

Atmospheric operation only.
1 L/min. maximum 1/2-inch NPT gas flow
Connection normally not required

19 L/mo. (all ranges except 0-5000 ppm) to 47 L/mo. (0 to 5000 ppm)

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

P5

REFACE

P

S

PECIFICATIONS

- P

HYSICAL

ELECTRICAL CLASSIFICATION – STANDARD

General purpose (non-hazardous locations)

E

LECTRICAL CLASSIFICATION

– O

PTIONAL

Air Purge, Type Z, ANSI/NFPA 496 for Class I, Division 2 hazardous locations

ENCLOSURE

NEMA-3R

D

IMENSIONS

23.7 x 15.0 x 8.3 (600 x 380 x 210) H x W x D

W

EIGHT

(115 VAC) 60 lb. (27.2 kg)
(230 VAC) 65 lb. (29.5 kg)

S

HIPPING WEIGHT

(115 VAC) 75 lb. (34 kg)
(230 VAC) 80 lb. (36.3 kg)

SPECIFICATIONS - OPTIONAL TYPE Z PURGE

P

URGE GAS

Inert gas, such as nitrogen, supplied through 1/8-inch tubing at 20 psig

O

PERATING PRESSURE

.2 inch H2O

I

NLET PRESSURE

Constant 2 psig minimum, 15 psig maximum at sample inlet

T

EMPERATURE

35°F to 160°F (2°C to 71°C)

S

USPENDED SOLIDS

Sample must be free of particles larger than 100 micro ns

C

HLORIDES

Up to 1000 ppm (wt)

P6

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

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P

C

USTOMER SERVICE

For order administration, replacement Parts, application assistance, on-site or factory
repair, service or maintenance contract information, contact:

, T

ECHNICAL ASSIST ANCE AND FIELD SERVICE

Rosemount Analytical Inc.

Process Analytical Division

Customer Service Center

1-800-433-6076

RETURNING PARTS TO THE FACTORY

Before returning parts, contact the Customer Service Center and request a Returned
Materials Authorization (RMA) number. Please have the following information when
you call: Model Number, Serial Number, and Purchase Order Number or Sales Order

Number.

Prior authorization by the factory must be obtained before returned materials will be
accepted. Unauthorized returns will be returned to the sende r, f re ight collect.

When returnin g any pro duct o r compon ent t hat has be en expo sed to a toxic, corrosi ve
or other hazardous material or used in such a hazardous environment, the user must
attach an appropriate Material Safety Data Sheet (MSDS.) or a written certification that
the material has been decontaminated, disinfected and/or detoxified.

Return to:

Rosemount Analytical Inc.

4125 East La Palma Avenue

Anaheim, California 92807-1802

USA

T

RAINING

A comprehensive Factory Training Program of operator and service classes is
available. For a copy of the Current Operator and Service Training Schedule contact
the Technical Services Depart men t at:

Rosemount Analytical Inc.

Phone: [phone]

FAX: [phone]

D

OCUMENTATION

The following Model 340 Trace Moisture Analyzer instruction materials are available.
Contact Customer Service or the local representative to order.

081854 Instruction Manual (this document)

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

P7

I

NTRODUCTION

1

1.1 SYSTEM DESCRIPTION

The Model 2100A is a continuous, on-line organics analyzer for industrial water analysis
applications with fullscale ranges from 0 to 2 ppm to 0 to 5000 ppm total organic carbon.
This reliable, low maintenance, industry-proven analyzer offers a real-time, accurate
analysis of organic levels in a variety of process water streams.

This model utilizes continuously operating ultraviolet-promoted persulfate oxidation to
convert organic carbon to carbon dioxide. This CO2 is then measured by an accurate
non-dispersive infrared detector. Output is calibrated to read parts-per-million (ppm) carbon.
This cost effective, rugged industrial design provides fast response and simple operation.
The Model 2100A has been proven successful in a wide variety of applications.

1.2 TYPICAL APPLICATIONS

EMICONDUCTOR PLANTS

S

Reclaimed water
Deionized water plant input

HEMICAL/PETROCHEMICAL PLANTS

C

Cooling water
Waste water
Organic loading of process streams
Product loss monitoring

OOD/BEVERAGE PLANTS

F

Cooling water
Waste water
Condensate return
Ion exchange effluent
Rinse water

OWER PLANTS

P

Cooling water
Boiler feedwater
Condensate return
Waste water

ATER/WASTEWA TER PLANTS

W

Raw and finished water quality
Potable water
Effluent water

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

1

NTRODUCTION

I

1.3 PRINCIPLE OF OPERATION

Refer to Figures 1-1 (TOC Version) and 1-2 (TC Version). The Model 2100A uses ultraviolet
promoted persulfate oxidation with infrared detection to continuously determine
concentration of soluble, non-volatile reactive organics. When a sample containing organic
compounds is mixed with a persulfate solution and exposed to ultraviolet radiation, it is
oxidized to CO2, as shown in the following equation:

Organics + [S2O8] -2 + H2O
½ CO2 + [SO4] -2 + H2SO

UV

4

The concentration Of CO2 is then determined with an infrared analyzer. If dissolved CO
and inorganic carbon are removed prior to oxidation, then the CO2 generated after oxidation
is indicative of the organics content in the sample.

Sample is introduced continuously into the Model 2100A through a sample bypass either by
means of process pressure or an optional sample pump. A sidestream for analysis is
continuously pumped at a constant rate and acidified with a sodium or ammonium
persulfate/phosphoric acid solution. The phosphoric acid reacts with any inorganic carbon
compounds (i.e., carbonates and bicarbonates) which may be present to form CO2. This
acidified solution is then sparged with carrier gas (nitrogen) to remove the CO2 and is
passed through a liquid/gas separator to vent the CO2. The liquid is introduced to the
reaction chamber where it is exposed to high intensity (184.9 nm) ultraviolet light.

The UV radiation catalyzes the persulfate oxidation of the remaining organic carbon to CO2.
The CO2-containing carrier gas is passed through a condensate trap to remove moisture,

and then through a non-dispersive infrared analyzer which measures the CO2 concentration.

2

In the TC Version, both organic and inorganic carbon are measured. The sparge system is
removed from this configuration, which allows all gases to pass through the infrared
detector.

The Model 2100A electronics linearize and scale the infrared detector signal to equate to
ppm carbon organics concentration which is read out continuously on the digital display
while simultaneously transmitting an analog signal proportional to the ppm carbon reading.
This proven concept provides quick, real-time response while maintaining high accuracy.

2

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

NTRODUCTION

I

IGURE

F

1-1. S

IMPLIFIED MODEL

2100A F

LOW DIAGRAM

(TOC V

ERSION

)

IGURE

F

748263-E Rosemount Analytical March 2001

1-2. S

IMPLIFIED MODEL

2100A F

LOW DIAGRAM

Model 2100A Process Total Organic Carbon Analyzer

(TC V

ERSION

)

3

NTRODUCTION

I

NOTES

4

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

I

NSTALLATION

2

2.1 GENERAL INFORMATION

This section contains instructions on site requirements, utilities, pre-operation checkout,
installation and pre tart-up preparations for the Model 2100A Process Total Organic Carbon
Analyzer.

2.2 SAMPLE CONDITIONING

Application parameters of the Model 2100A are influenced by the following typical user
criteria:

• Measurement objective

• Physical plant arrangement

• Nature of test sample.

Performance of the Model 2100A depends upon the integrity of the sample. Therefore, each
Model 2100A system installation may be unique with respect to conditioning of the sample.

The sample flow rate supplied to the Model 2100A by a typical sample system is many
times greater than the minimum flow required. This serves to:

• Reduce lag time

• Minimize change in sample composition

• Optimize functioning of basic sample conditioning elements

• Optimize compatibility with commercially available pumps and pipe sizes

The analyzer sample inlet system, therefore, is designed to handle an input flow rate of 2
L/min maximum. A sidestream flow of 1. 1 to 15 ml/min is taken for analysis from the flowing
inlet sample.

Maximum admissible particle size in the sample supplied to the unit is 100 micron diameter.

2.3 LOCATION

The installation site must be near the sample access point to assure good sample integrity
and minimum input lag time. The location must be level, covered and adequately enclosed
to provide the unit with good ventilation but without high concentrations of dust or dirt in the
air. Ambient operating temperature range is 35°F to 122°F (2°C to 50°C) at 90% maximum
relative humidity. The Model 2100A must be isolated from strong vibrations (as may be
caused by large motors, pumps, etc.) and protected from the heating effect of direct
sunlight.

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

5

NSTALLATION

I

Note
The standard Model 2100A is designed for installation only in unclassified,

non-hazardous locations. If equipped with an optional air purge system and installed
and operated per Type Z of standard ANSI/NFPA 496, the Model 2100A may be
located in a Class I, Division 2 classified location as defined in the National Electrical
Code (ANSI/NFPA 70).

Actual outside dimensions of the Model 2100A are found in Table 1-1 and drawing 655369.

2.4 UTILITIES AND SUPPLIES

2.4.1 ELECTRICAL CONNECTIONS

2.4.1.1 P

A 115 VAC, 50/60 Hz (optional 230 VAC, 50/60 Hz), 1 phase, 15 A service line with ground
is required. Protection by circuit breaker or fuse is necessary. A 14-inch power conduit
opening is located on the top right side (frontal view, this and subsequent references) of the
Model 2100A cabinet. Power should be wired to the power terminal strip (Figure 2-1).

2.4.1.2 S

Analog output signals of 0 to 1 VDC, 10 mV DC, or optional 4 to 20 mA DC are provided for
external stripchart recorders or other signal processing equipment. A separate 1/2-inch
conduit opening is located on the top right side of the Model 2100A cabinet for signal wiring.
Signal should be wired from terminal board TB1 (Figures 2-1, 2-2). To prevent electrical
interference, signal wiring should be run in conduit separate from the power wiring. W here
possible, signal cable should be a twisted pair with overall shield and outer insulating jacket.
The shield should be grounded at one end only. W hen not used, the signal conduit opening
should be plugged with an appropriate watertight plug such as Caplugs part number BP 7/8.

2.4.1.3 A

The Model 2100A has one set of fully adjustable 10 A, 240 VAC (30 VDC), DPDT alarm
contacts for either high or low TOC alarming. If used, the alarm wiring should be connected
to TB2 (Figure 2-2). Either the power or the analog signal conduit opening may be used,
depending upon the voltage level present in the users alarm system.

OWER

IGNAL

LARM

2.4.2 GAS, LIQUID CONNECTIONS

2.4.2.1

The process sample must be supplied at a small positive, constant pressure (2 psig min., 15
psig max.). A 1/4-inch NPT sample inlet connection is provided on the lower left side of the
Model 2100A cabinet. Refer to drawing 655369 for recommended installation. For
installations where pressure is greater than 2 psig, some means of throttling and flow
indication such as a rotameter with throttling valve is desirable. Sample flow may be in the

6

SAMPLE IN

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

NSTALLATION

I

range of 50 to 2000 ml/min, with a preferred flow of at least 1000 ml/min to minimize sample
transport lag time.

The sample must not contain particles larger than 100 microns in diameter.

IGURE

F

IGURE

F

2-1. I

2-2. E

NNER COMPARTMENT

LECTRICAL CONNECTION TO

PC B

OARD

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

7

NSTALLATION

I

2.4.2.2 S

AMPLE DRAIN

A 1/2-inch NPT connection is provided on the left side of the Model 2100A cabinet. This
drain should slope directly to an open atmospheric drain, using 1/2-inch minimum O.D.
tubing or 1/2-inch minimum diameter pipe with no pockets or obstructions which might
introduce back pressure at the analyzer drain connection. See drawing 655369 for
recommended installation. A special 1/2-inch elbow with vent hole is supplied separately for
making this drain connection.

2.4.2.3 R

EAGENT

A 1/8-inch tubing connection is located at the left side of the Model 2100A cabinet for
connection to the persulfate reagent reservoir supplied with the instrument. A continuous
10-foot length of 3/16-inch O.D.

Teflon tubing runs through this fitting for connection to the reagent reservoir. To connect the
reservoir, drill a 1/4-inch hole in the center of the reservoir cap and insert the Teflon tube
into the hole until the tube reaches the bottom of the reservoir. Stainless steel tube ferrules
attached to the tube end act as a weight to prevent the tube from floating. See drawing
655369 for proper installation. Refer to Section 4.2 and Table 4-1 for special instructions
about reagent preparation.

CAUTION: CORROSION HAZARD

Do not use metal tubing or fittings for reagent connection.

2.4.2.4 S

TANDARD

This 1/8-inch tubing connection, located on the lower left side of the Model 2100A cabinet,
is for introducing a prepared calibration standard for calibration of the analyzer, or for
introducing a "grab sample" for analysis. For the recommended calibration standard, see
Table 4-1 and refer to Section 5. A continuous 4 to 5-foot length of Teflon tubing runs
through this connection directly to the sample select valve. The free end of this tube should
be inserted into a sample container at atmospheric pressure. A stainless steel nut and
ferrules attached to the free end of this tube act as a weight to prevent the tube from float­ing. The sample is pumped out of the container by the sample pump internal to the analyzer
when the pump is running and the sample selector valve is rotated to the "Standard"
position. See Section 3, INITIAL START-UP, and Section 4, OPERATION and
MAINTENANCE, for operational details. See drawing 655369 for recommended installation.

2.4.2.5 C

ARRIER GAS

A 1/8-inch tubing connection is located on the lower left side of the Model 2100A for a
suitable carrier gas. A 1/8-inch tube is recommended but 1/4-inch tubing with a 1/8-inch
adapter may be necessary to avoid pressure drop if the distance from gas supply to
instrument exceeds 5 to 10 feet.

8

March 2001 Rosemount Analytical 748263-EModel 2100A Process Total Organic Carbon Analyzer

NSTALLATION

I

Carrier gas may be clean, dry CO2-free nitrogen. It should be supplied at 75 to 100 psig at
instrument inlet. Set the internal carrie r gas regulator according to requirements un ique to
each individual instrument, as outlined on the Data Sheet at the back of the manual. Carrier
gas consumption is between 200 and 500 cc/min depending upon the TOC fullscale range.
See drawing 655369 for recommended installation.

2.4.2.6 V

ENT

A 1/2-inch tubing vent connection is located on the lower left side of the Model 2100A. This
vent carries the combined flow of drying gas and CO2-containing carrier and sparge gas.
Normally no tubing is required for this vent. In fact, the preferred installation requires no
external tubing or piping connected to the vent connection. If it is necessary to route this
vent outside, 1/2-inch O.D. minimum tubing or 1/2-inch tubing minimum pipe should be
used. The tubing should be as short as possible and must slope downward throughout, with
no pockets where condensation might collect and cause varying back pressure. See
drawing 655369.

CAUTION: BACK PRESSURE HAZARD

The "Sample Drain" and "Waste Drain" must not be connected together. Both
drains should be run separately into a common open atmospheric drain. These
lines must slope all the way to the open drain, with no pockets or obstructions
which might introduce back pressure at the analyzer drain connection. Only the
special vented male elbow supplied with the analyzer should be used for making
the first connection to the analyzer "Waste Drain."

2.4.2.7 W

ASTE

A 1/2-inch NPT waste drain connection is located on the lower left side of the Model 2100A.
This drain must be connected to a 1/2-inch minimum plastic or 316SS tubing or pipe, and
must continuously slope downward unobstructed to an open atmospheric drain. To assure
proper venting of this drain, a special 1/2-inch plastic male elbow with a drilled vent hole is
provided with the analyzer. Use only this connector for the first waste fitting out of the
analyzer.

Note
Use only plastic or 316SS material in the "Waste Drain" line. This line contains a

persulfate salt, which will corrode most metals. Do not use copper or brass.

2.4.2.8 C

ONDENSATE TRAP DRAIN

The self-draining condensate trap requires a 3/8" I.D. hose attached to its drain stem. See
drawing 655369. The hose should be directed to an open drain or container. Allow water to

748263-E Rosemount Analytical March 2001

Model 2100A Process Total Organic Carbon Analyzer

9