Arizona Instrument COMPUTRAC VAPOR PRO User manual

AZI P/N 700-0049-F
USER MANUAL
COMPUTRAC® VAPOR PRO®
MOISTURE ANALYZER
Firmware Revision 1.13.2
July 2011
ARIZONA INSTRUMENT LLC
3375 N Delaware Street | Chandler, AZ 85225 USA
800.528.7411 | 602.470.1414 | (f) 480.804.0656
www.azic.com
email:
General
[e-mail]
International
[e-mail]
Support
[email protected]

Page 2
Computrac® VAPOR PRO®
PROPRIETARY RIGHTS NOTICE
The material in this manual contains valuable information developed by Arizona Instrument LLC for use
with the Computrac®line of moisture analyzers. No part of this manual can be reproduced or transmitted
in any form or by any means, electronic, mechanical, or otherwise. This includes photocopying and
recording or in connection with any information storage or retrieval system without the express written
permission of Arizona Instrument LLC.
ALL RIGHTS RESERVED
©Copyright 2001-2011 Arizona Instrument LLC
PLEASE NOTE: This manual covers both VAPOR PRO®instrument models, the CT-3100 and the
CT-3100-L. Generally, instrument operation and functionality are identical. When there is a difference
between the two models, this is specifically delineated in the manual where appropriate. Refer to the
instrument serial label to confirm whether your instrument is a CT-3100 or a CT-3100-L.

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Table of Contents
1. WARNINGS AND SAFETY INFORMATION............................................................................4
2. INTRODUCTION..........................................................................................................................6
3. PRINCIPLES OF OPERATION....................................................................................................7
4. UNPACKING ................................................................................................................................8
5. INSTALLATION...........................................................................................................................9
6. CHECK SENSOR STATUS..........................................................................................................13
7. DRYNESS TEST...........................................................................................................................14
8. RH SENSOR CALIBRATION TESTS .........................................................................................15
Calibration Check ........................................................................................................................15
Sensor Calibration........................................................................................................................17
9. TEMPERATURE CALIBRATION...............................................................................................19
10. RUNNING MOISTURE TESTS ...................................................................................................21
Select Test Settings......................................................................................................................21
To Enter Material Name ..............................................................................................................21
To Select Programmed Test Temperature....................................................................................22
To Select Units for the Final Result Display ...............................................................................22
To Select How to End the Test ....................................................................................................22
To Select Sample Weight Entry Method .....................................................................................23
To Select Bottle Purge Control....................................................................................................24
11. DETERMINE OPTIMUM PARAMETERS..................................................................................25
12. RUN MOISTURE TEST ...............................................................................................................27
13. COMPUTRAC®VAPOR PRO®MENU SYSTEM.....................................................................28
Memory Start Menu.....................................................................................................................30
Stored Data Menu (Not available on 21 CFR, Part 11 compliant instruments).........................30
Calibration Menu .........................................................................................................................31
Setup Menu..................................................................................................................................32
Diagnostic Menu..........................................................................................................................34
14. CONDITION PROMPTS ..............................................................................................................35
Condition Prompts.......................................................................................................................35
15. SYSTEM FAILURE CODES ........................................................................................................36
16. COMMONLY ASKED QUESTIONS...........................................................................................37
17. REPAIR AND MAINTENANCE..................................................................................................40
ACCESS COVER REMOVAL.................................................................................................40
INSTRUMENT COVER REMOVAL .....................................................................................41
TO INSPECT THE FILTER AND TUBING:.........................................................................41
Q: “How do I change the filter?” Not on all instruments......................................................42
Q: “How do I Adjust the Dry Air Flow?”...............................................................................43
Q: “How do I set up the Computrac®VAPOR PRO®to use the AZI SP150 or SCI SA800 digital balance?”
45
18. SPECIFICATIONS AND RATINGS ............................................................................................46
19. WARRANTY.................................................................................................................................47
An updated electronic copy of this manual is available from www.azic.com.

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1. WARNINGS AND SAFETY INFORMATION
The VP-Series Moisture Analyzers comply with the
Underwriter Laboratories Inc. standards and European
Council Directives for Electrical Equipment for
Laboratory Use, electromagnetic compatibility, and the
stipulated safety requirements. However, improper use or
handling of instrument can result in damage to equipment
and/or injury to personnel.
The VP-Series Moisture Analyzers are identified as
Equipment Class I, Pollution Degree 2, and Installation
Category II.
Read this manual thoroughly before using your moisture
analyzer to prevent damage to the equipment. Keep these
instructions in a safe place. An up-to-date electronic copy
of this manual can be found at the AZI web site at
http://www.azic.com.
The following instructions will help to ensure safe and
trouble-free operation of your moisture analyzer.
•Use the moisture analyzer only for performing
moisture analysis of samples. Any improper use of the
analyzer can endanger persons and may result in
damage to the analyzer or other material assets.
•Do not use this moisture analyzer in a hazardous
area/location; operate it only under the ambient
conditions specified in these instructions.
•Although the moisture analyzer is simple to operate
and is very user friendly, it should only be operated by
qualified persons who are familiar with the properties
of the sample being analyzed.
•Ensure, before getting started, that the voltage rating
printed on the manufacturer's label is identical to your
local line voltage (see the section beginning on page
11.
•The VP-Series Moisture Analyzer is provided with a
power cord that has a protective grounding conductor.
Do not operate the unit without the supplied three-
wire power cord or an identical recognized equivalent
that meets all applicable standards.
•AZI does not recommend the use of an extension cord.
However, if one must be used, use an extension cord
that meets all applicable standards and has a protective
grounding conductor.
•Do not remove the protective grounding wire from the
power supply circuit.
•With the power switch off, power is still applied to the
power entry module. Disconnect the power cord from
the instrument to ensure complete power removal.
•Position the power cable so that it cannot touch any
hot areas of the moisture analyzer.
•Use only AZI supplied accessories and options with
VP-Series Moisture Analyzers or check with AZI
before using any third party accessories, such as
printers and analytical balances, to verify
compatibility.
•If there is visible damage to the VP-Series Moisture
Analyzer or its power cord, unplug and isolate the unit
first and then call Customer Service.
•Do not open the analyzer housing of the VP-Series
Moisture Analyzer. There are no user serviceable
parts or adjustments inside the unit. Any maintenance
inside the unit is to be performed by factory-trained
technicians only. Any unauthorized inspection and/or
maintenance of the VP-Series Moisture Analyzer will
void the warranty.
Prevent excess heat build-up around the analyzer
•When setting up the moisture analyzer, leave enough
space to prevent heat from building up and to keep
your analyzer from overheating. Leave 20 cm (about 8
inches) around the moisture analyzer and 1 meter
(about 3 ft.) above the unit.
•Do not put any flammable substances on, under or
near the right side of the moisture analyzer. The area
around the Temperature Calibration Interface opening
may reach the temperature of the oven.
•Use extreme care when handling the discharged
sample bottle. Although the bottles may cool rapidly,
they are still very hot when the transport removes
them from the oven.
HAZARDS FOR PERSONS OR EQUIPMENT
POSED BY USING SPECIFIC SAMPLES:
Flammables; explosives; substances that contain
flammables, explosives, solvents; and/or substances that
release flammable or explosive gases or vapors during the
drying process.
•If flammable or explosive liquids are tested, the gasses
escaping through the back of the unit are still
dangerous when they are exposed to the atmosphere.
Fume hoods may offer partial protection but the
potential danger will still be present. The user shall be
liable and responsible for any damage that arises in
connection with the VP-Series Moisture Analyzers
and potentially harmful substances.
•Substances containing toxic, caustic or corrosive
substances may be analyzed with the unit in an
appropriate fume hood only. The fume hood must
keep the work area below the lower toxic limit
established by appropriate standards.

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•Substances that release caustic vapors such as acids
should be analyzed in the smallest sample size
possible to still achieve satisfactory results. If vapors
condense on the VP-Series Moisture Analyzer’s
housing parts, stop the testing, wipe the surface clean
with a suitable neutralizer and place the unit in a fume
hood capable of removing the vapors. The flow
system in the instrument is composed of aluminum
and brass fittings connected with clear tubing. Check
for compatibility of substances to be tested before
inserting them into the instrument.
•The user has the responsibility for carrying out
appropriate decontamination if hazardous material is
spilt on or inside the VP-Series Moisture Analyzers.
CLEANING
•Clean the VP-Series Moisture Analyzers according to
the cleaning instructions only. Use of strong
detergents and “oven cleaners” will damage the case
and heater housing.
•Before using any cleaning or decontamination method
except those recommended by Arizona Instrument,
check with AZI Customer Service at 1-602-470-1414
or 1-800-528-7411, to ensure that the proposed
method will not damage the equipment.
•The outside housing of the VP-Series Moisture
Analyzers should be cleaned with a mild household
detergent such as “409” and a soft, lint-free cloth.
Paper towels should never be used, as they will
scratch the instrument’s finish and the clear lens over
the display. If methods that are more stringent are
required, call AZI Customer Service at 1-602-470-
1414 or 1-800-528-7411 for recommendations.
•Cleaning of the flow system components is normally a
factory operation. If components become
contaminated, follow the directions contained in this
manual beginning on page 40.
•Every precaution has been taken to prevent
contaminants from entering the unit. However, if
liquids or powders do enter the case, call AZI
Customer Service at 1-602-470-1414 or 1-800-528-
7411 for recommendations.
The user shall be liable and responsible for any damage
that arises in connection with the use of this moisture
analyzer.
ENVIRONMENTAL CONDITIONS
Storage and Shipping
•Temperature should be between 0 ºC to +40 ºC
(+32 ºF to +104ºF).
•Relative Humidity should be between 10% and 80%.
OPERATIONAL CONDITIONS – INDOOR USE.
•Optimum results will be achieved when the unit is set
on a smooth, level surface in a non-condensing, non-
explosive environment of 0-31 ºC at less than 80%
relative humidity or 32-40 ºC at less than 50% relative
humidity
•Do not expose the moisture analyzer unnecessarily to
extreme temperatures, moisture, shocks, blows or
vibration.
UNPACKING THE MOISTURE ANALYZER
•After unpacking the moisture analyzer, check it
immediately for any visible damage as a result of
rough handling during shipment.
•Save the box and all parts of the packaging to use
when returning your moisture analyzer for calibration.
Only the original packaging provides the AZI
recommended protection for shipment. Before packing
your moisture analyzer for shipment, unplug all
connected cables to prevent damage during transit.
WARNING SYMBOLS
- Protective Ground
Identifies the connection on the Chassis and
Power Inlet Module for connection of the
safety ground (green/yellow) wire.
- Warning
Information or procedure that must be
observed.
- Electrical Shock Hazard.
Observe all steps of the procedure to prevent
electrical shock.
- Warning, Hot surface or area of possible
severe burns. Use listed precautions when
opening the lid and handling samples to
prevent injury.

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2. INTRODUCTION
Arizona Instrument is proud to continue its leadership role in developing new technology for the
moisture analysis industry. The Computrac®VAPOR PRO®is a giant step forward in the
measurement of very low moisture levels.
A revolutionary moisture analyzer with a detection limit of 10 ppm, the Computrac®VAPOR
PRO®uses a sensor-based technology and correlates to the Karl Fischer coulometric titration
method (with an oven attachment) in precision and accuracy. The analyzer does not utilize
reagents, minimizes consumables, and is simple to operate.
Principles of Operation: The Computrac®VAPOR PRO®heats a sample of test material in a
septum bottle. Evolved volatiles are passed to an analysis cell where the moisture content of the
flowing gas is measured. A microprocessor integrates the varying moisture signal and converts
the signal to micrograms of water for display. Results are available in parts per million, percent
moisture, or total micrograms of water. Arizona Instrument's innovative prediction algorithm
automatically terminates the test in just minutes when sufficient information is collected to allow
accurate determination of the sample's moisture content. The heating range of the Computrac®
VAPOR PRO®is 25 °C to 275 °C. Test parameters such as sample size, heater temperature and
test ending criteria can be altered to optimize speed and accuracy.
Performance: Designed for either lab or production floor use, the Computrac®VAPOR PRO®
Moisture Analyzer uses patented, state-of-the-art technology specifically designed to provide
accurate and precise results in a timely manner. This ensures that product quality is achieved
and maintained.
The Computrac®VAPOR PRO®stores programmed memory settings for up to 102 materials
and on 21 CFR, Part 11 non-compliant instruments, retains the data from the last 30 sample test
runs. The software automatically calculates the statistics of any selected stored data upon
demand. All retained test data can be automatically sent to an external printer or personal
computer at the end of a test or on request.
NIST traceable 1.0 µl capillary tubes, which permit quick and easy system verification, are
provided in the accessory kit. System calibration is checked in just minutes. Re-calibration is a
menu driven procedure to assure accurate and reliable results day after day. Built-in self-
diagnostics constantly monitor system conditions to detect and report any abnormalities in the
hardware, software, moisture sensor or flow system.

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3. PRINCIPLES of OPERATION
The Computrac®VAPOR PRO®utilizes a cylinder shaped bottle heater, a dry air - carrier gas
flow system and a moisture sensor. The instrument heats a sample of test material contained in a
25 ml (milliliter) septum bottle. Volatiles driven from the sample are carried by the air system
through the Sensor Block containing the Relative Humidity (RH) sensor. The RH sensor used to
detect water in the gas stream is a polymer capacitor relative humidity sensor. The reading from
this sensor is combined with sensor block temperature and carrier gas flow rate in a
microprocessor to generate an accurate measurement of the moisture content in the sample. The
instrument then displays the result in terms of:
•Parts per million (ppm) H2O,
•Micrograms (µg) H2O, or
•Percentage (%) H2O.
Test parameters such as temperature, ending criteria, and purge time can be changed to optimize
test speed and accuracy. See Appendix A, beginning on page 46, for detailed specifications and
operating limits.
Figure 1Computrac
®
VAPOR PRO
®
Basic Flow System

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4. UNPACKING
Unpack the instrument and locate the following items: AZI Part Number:
Computrac
®
VAPOR PRO
®
Moisture Analyzer
(CT-3100 or CT-3100-L) CT-3100-L or
CT-3100-L100V CT 3100-L220V
differences
Accessory Kit Y990-0139
1 Power Cord (varies with area) 200-0002
US/CANADA 200-0003 England 200-0008 Europe
3' Clear Tubing, 1/8" X 1/4" 345-0050
1 Tweezers 690-0012
1 VAPOR PRO®User Manual 700-0049
100 1.0 Microliter Microcaps 990-0150
1 Inline Desiccator Kit Y990-0116
1 Vapor Pro®Hydrophobic Filter Kit Y990-0155
1 Kit, Septa & Caps, CT-3100 Y990-0206
10 Bottle Caps
990-0206
50 Septa for Sample Bottles
990-0207
1 Kit, Bottle Testing Assemblies Y990-0226
10 Bottle Caps
990-0206
10 Septa for Sample Bottles
990-0207
10 Sample Bottles
990-0229
Optional Accessories:
Hydrophobic Filter 990-0059
101 key PC keyboard 990-0088
Travel case 990-0092
Bottle Caps 990-0206
Septa for Bottle Caps 990-0207
Sample Bottles 990-0229
Digital balance with cable and Communications
Software Y990-0082
PC graphics printer kit Y990-0098
Temperature Calibration Kit with 9 VDC, 100
mA, 3.5 mm male plug, + tip, DC Adaptor Y990-0142 (110 VAC)
Y990-0165 (220 VAC)
Dry Air Generator kit (110 VAC)
Y990-0143
Needle Replacement Kit Y990-0161
IQOQPQ Validation Package Y990-0163
Vapor Pro
®
Communications Package Y990-0196
If you are unable to locate any of the standard items or have questions regarding the
optional accessories, contact AZI Customer Service at [phone] or [phone].

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5. INSTALLATION
Place the Computrac®VAPOR PRO®on a solid level surface that is large enough to
accommodate the instrument and any accessories or materials that may be required for your work
(balance, printer, sample bottles, samples, etc.).
Using 1/8" ID clear tubing [AZI P/N 345-0050], attach a dry nitrogen or dry carrier gas source to
the Flow Inlet Port fitting on the back of the instrument, indicated by an arrow pointing to the
connector.
•Carrier gas source may be a cylinder, facility air or nitrogen supply, or dry air
generator.
•The pressure from the compressed gas cylinder is very high and is normally reduced
by a two-stage regulator. The pressure from the compressed air or nitrogen system in
most facilities will be at moderate pressure and normally require only a single stage
regulator. The dry air generator, manufactured by Arizona Instrument LLC, P/N
Y990-0143, produces the pressure required by the instrument and therefore, no
additional regulator is need. This is the ideal choice for portable operation.
•Examples of regulators capable of regulating pressure to 30 psi are as follows.
For cylinder applications:
♦Multi-stage Gas Regulator for Compressed Air Cylinder, VWR #55850-474
or equivalent.
For supplied gas sources:
♦Matheson Gas Products Model 3473 Single Stage Line Regulator or
equivalent.
•Connecting tubing must be AZI P/N 345-0050 clear impermeable tubing, unless
otherwise indicated, to prevent introducing moisture into the carrier gas system.
Tubing size is 1/8” ID X 1/4” OD.
•A desiccant bed is recommended to remove any moisture that may be present in the
carrier gas supply. A desiccant kit is available from AZI as Kit, Desiccator, Inline,
P/N Y990-0116. As illustrated, the desiccant is placed just before the inlet
connection of the instrument. The desiccant turns from blue to pink as it absorbs
moisture. When the entire column of desiccant is pink, it will no longer absorb
moisture, and the desiccant must be replaced or regenerated to restore the drying
capacity.
AZI clear

Page 10
•Instructions on the Drierite®website tell how to regenerate the Drierite®for
continued use. For further information, contact W.A. Hammond Drierite Co, Ltd at
[phone] or at www.drierite.com.
The following diagrams are not to scale but illustrate the preferred connecting arrangements.
Cylinder with two-stage regulator is
connected to the desiccator with clear tubing
[AZI P/N 345-0050]. The desiccator is
connected to the instrument with the same
type of tubing. Pressure to the instrument is
between 17 and 22 psi (118-152 kPa).
Compressed Gas Cylinder
The facilities air or gas supply is usually
connected to a wall or bench mounted
regulator. The regulator is connected to the
desiccator with clear tubing [AZI P/N
345-0050]. The desiccator is connected to
the instrument with the same type of tubing.
Pressure to the instrument is between 17 and
22 psi (118-152 kPa).
Facility Air or Gas Supply
The dry air generator is connected to the
desiccator with yellow tubing [AZI P/N
2500 3003]. The desiccator is connected to
the instrument with clear tubing [AZI P/N
345-0050]. Pressure from the Dry Air
Generator is not adjustable but should be
above 14.5 psi (100 kPa).
Using a Dry Air Generator
For all but the dry air generator, adjust the pressure to the instrument so that it is set between 17
and 22 psi (118-152 kPa) with 20 psi (138 kPa) being the preferred pressure.