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.

Page 3
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.

Page 4
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.

Page 5
•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

Page 8
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].

Page 9
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.

Page 11
If you plan to use a printer, electronic balance, and/or computer, connect them to the marked
connectors at the back of the instrument. The accessory keyboard connects to a fitting on the side
nearest the printer connector of the instrument. Connect all accessories while the instrument is
turned OFF, and power ON the accessories before powering ON the instrument.
Power control and fuses are located at the rear of unit.
The power entry module must be configured for the
voltage supplied to it. This will be either 100 to 120
VAC or 220 to 240 VAC. The unit is configured at
the factory for the destination country at time of
shipment. However, to ensure the unit is configured
correctly, verify the arrow indicator on the fuse
holder points to the proper voltage for your
environment before connecting to a power source.
To change from 110 to 220VAC or from 220 to 110VAC:
Ensure the power switch, located next to the fuse holder, is in the off (O) position.
Remove the fuse holder from the power entry module by prying with a small flat
screwdriver.
Change the fuse:
A unit operating from 100-120 VAC should have two 8-amp slow blow fuses,
(AZI P/N 190-1001).
A unit operating from 200-240 VAC should have two 4-amp slow blow fuses,
(AZI P/N 190-1002).
Turn the fuse holder around, and slide it back in so that the arrow indicator on the power
entry module is pointing to the correct voltage for your environment.
CAUTION
Never use any power cable other than the one provided or one of
equivalent UL listed ratings. Be sure that the ground pin of the power
source is properly grounded. Never cover the power receptacle so that the
power cord cannot be removed quickly and easily.
Connect the instrument line cord into the matching port on the back of the instrument.
Connect the plug end of the cord into a dedicated 15 Amp line source of the voltage for which
the power entry module is set. (100 to 120 VAC or 220 to 240 VAC)
Toggle the power switch at the rear of the unit to the ON (I) position.
Voltage Indicator Arrow

Page 12
After a quick view of the instrument identification and the firmware version, the Main Test
Screen will appear.
Allow the instrument to warm up for 20 minutes.

Page 13
6. CHECK SENSOR STATUS
The display shows the function of the soft-keys at the bottom of the screen. Use the soft-key
buttons below the display on the front panel to move through the menu screens and system
settings. The function of each soft key will change as needed to provide the selection and input
requirements of each menu screen.
From the Main Test Screen, select [Menu] to reveal the
Main Menu.
Move the cursor down to highlight the Diagnostic Menu.
Press [Selct].
Verify the View System Sensor Status option is
highlighted.
Press [Selct] again to view the Sensor Status Screen.
If the FLOW IN is not 75 ± 2 milliliters per minute (mL/min) on a CT-3100-L or
100 ± 10 mL/min on a CT-3100, go to Q: “How do I Adjust the Dry Air Flow?” on page 43.
CT-3100-L CT-3100
Return to the Main Test Screen by pressing [Esc] three times.

Page 14
7. DRYNESS TEST
For all tests using a bottle, ENSURE the slick Teflon®side of the septum is to the inside of the
bottle or the moisture trapped in the septum will cause false moisture indications.
When the display on the Main Test Screen indicates
“Ready to Test” press and/or select in order:
•[Memry]
•*DRYNESS TEST*
PRESS [START].
•This test will run for 2 minutes to test for
moisture that may have migrated into the
system.
•If this is the first test after changing a portion
of the flow system; tubing, needle, filter, etc.,
or if the result is more than 5µg, repeat the
Dryness Test up to four (4) times.
•If the result does not fall under 5µg after the
4th test:
Check for moisture in the dry air supply line.
Check and/or change the hydrophobic filter, see page 42.
Call AZI Customer Service at [phone] or [phone].

Page 15
8. RH SENSOR CALIBRATION TESTS
The water calibration test verifies that the instrument is working properly. This test only takes a
few minutes. Arizona Instrument recommends that this test be run every day to verify the
system’s calibration and accuracy. For greatest accuracy, each test should be run with a new
septum. Ensure the septum is installed with the smooth Teflon®liner to the inside of the bottle
to prevent moisture from the soft plastic from affecting the result.
Calibration Check
Carefully remove a 1.0 Microliter Microcap, AZI P/N 990-0150 from
the storage bottle. Use forceps/tweezers to handle the tube.
Just touch the end of the tube into purified or de-
ionized water. The tube must be in contact with the
water long enough to fill, about 10 to 15 seconds.
If the tube is not full, the reading will be low.
Pull the capillary tube straight up out of the water.
A rapid but straight motion will tend to remove
excess water from the side of the tube. Excess moisture on the side of the tube will cause a high
reading.
Visually verify that no free water is on the outside of the tube. Wipe the tube only if necessary
with a finger or other non-absorbent instrument. DO NOT WIPE THE TUBE WITH A TISSUE
OR OTHER OBJECT THAT WILL SOAK WATER OUT OF THE CAPILLARY TUBE.
Gently place the tube into a dry sample bottle just past the bottle’s neck
as shown. Dropping or shaking the tube will cause water to be lost and
will give erratic readings over several tests.
Place a dry cap and septum, with shiny side inside, on the
sample bottle.
Gently place the sample bottle onto the transport so that the tube
rests toward the neck of the bottle as shown.

Page 16
When “READY TO TEST” is displayed on the Main Test Screen, SELECT IN ORDER:
•[Memry]
•*RH SENSOR CAL*
•Press [START]
Accuracy of results should be within five (5) percent of the capillary capacity of 1000
micrograms. (950μg to 1050μg)
Allow the test to proceed until completed. It should take five to seven (5 to 7) minutes.
If desired, perform four more calibration tests and calculate the statistics.
If this is a 21 CFR, Part 11 compliant instrument, all readings must be recorded by hand; AZI
recommends using a printer to capture the values. The calculations must be performed on a
calculator since the instrument’s storage and analysis functions are disabled.
Mean, Standard Deviation, and Coefficient of Variation are calculated using the following
formulas.
•Mean = total of results divided by number of results.
•Standard Deviation =
1-n x-x
2
)(Σ
•Coefficient of Variation = Standard Deviation divided by Mean times 100%
After the fifth test, press [Menu] for MAIN MENU,
•Press [Selct] for STORED DATA MENU, (Not available in 21 CFR, Part 11
compliant instruments.)
•Press [Selct] for ANALYZE STORED DATA,
•Highlight and [Selct] the desired results to be included in the statistics, and
•Press [Stat] to calculate Average, Standard Deviation, and Coefficient of Variation.
The average should fall within ±5% of the capillary tube’s calibrated value.
If the mean result does not fall within the ±5% range, perform the sensor
calibration below.

Page 17
Sensor Calibration
The Relative Humidity Sensor is calibrated using the same technique as for the calibration check.
The difference is in what happens to the results. The calibration calculation may be used to
calibrate the sensor whereas the check calculation is only for information. Therefore, the first
portion of the sensor calibration is like the calibration check.
Some part numbers of items used during the test and calibration are given below for reference.
•Sample Bottle 990-0064
•Septa, Sample Bottle 990-0074
•Capillary Tubes, 1.0 Microliter, 100/bottle 990-0150
Carefully remove a 1.0 Microliter Microcap, AZI P/N 990-0150 from the storage bottle. Use
forceps/tweezers to handle the tube.
Just touch the end of the tube into purified or de-
ionized water. Tube must be in contact with the
water long enough to fill. If the tube is not full,
the reading will be low.
Pull the capillary tube straight up out of the
water. A rapid but straight motion will tend to remove excess water from the side of the tube.
Excess moisture on the side of the tube will cause a high reading.
Visually verify that no free water is on the outside of the tube. Wipe the tube only if necessary
with a finger or other non-absorbent instrument. DO NOT WIPE THE TUBE WITH A TISSUE
OR OTHER OBJECT THAT WILL SOAK WATER OUT OF THE CAPILLARY TUBE.
Gently place the tube into a dry sample bottle just past the bottle’s neck
as shown. Dropping or shaking the tube will cause water to be lost and
will give erratic readings over several tests.
Place a dry cap and septum, with shiny side inside, on the sample bottle.
Gently place the sample bottle onto the transport so that the tube
rests toward the neck of the bottle as shown.

Page 18
When “READY TO TEST” is displayed on the Main Test Screen, SELECT IN ORDER:
•[Memry]
•*RH SENSOR CAL*
•Press [START]
Allow the test to proceed until completed. It should take five to seven (5 to 7) minutes.
NOTE: At least five (5) tests are required for the proper analysis and correction factors
to be calculated.
When the instrument again indicates “READY TO TEST,” prepare and load another capillary
tube and sample bottle, and press [START] to perform another test. Do this at least four (4)
more times, or until you have a total of five valid test results.
To be considered valid, all 5 tests must give results within
±
50 μg of each other.
If five valid results are not available, repeat the tests until there are five valid tests. If
continued testing does not produce five valid test results, please contact Customer Service
for assistance at 602-470-1414 or 800-528-7411 or via email at [email protected].
When five valid tests results are available, press [Menu] and the Main Menu Screen appears.
•Select Calibration Menu.
•Select Perform RH Sensor Calibration.
•Press [Selct], [Down], and [Selct] to select all calibration tests to be included in the
calculations.
•Press [Cal]. The screen will display the calibration water mass.
•Use [Edit] to change the value, if necessary, to read 1000.0 which is the value of the
capillary tube in grams. (1.0 µl = 1000 µg)
•Press [Go]. The screen will appear listing the calculated data and calibration factor.
•Press [Accpt] to save the new calibration constant.
The new calibration constant will remain in memory until the next sensor calibration is
performed. The RH Sensor Test runs used for this calibration will be automatically deleted so
they will not be used for the next calibration.
Press the [Esc] key twice and the Main Test Screen appears.
Perform at least one more calibration check to verify the accuracy of the calibration.
Accuracy of results should be within five (5) percent of the capillary capacity of 1000
micrograms, or in the range 950 to 1050 µg.

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9. TEMPERATURE CALIBRATION
TIP: The temperature calibration and verification take approximately 5 hours. If time is critical,
the process can be completed in approximately four hours by running the verification portion
manually and opening the lid to cool the unit between the calibration and the verification.
Parts Required in addition to the VAPOR PRO
®
Amt. AZI Part Number Description
1 Y990-0142 (110 VAC)
Y990-0165 (220 VAC)
Temperature Calibration Kit with 9 VDC, 100 mA, 3.5 mm
male plug, positive tip, DC Adaptor
1 Y990-0098 Graphics Printer with cable (optional)
Install the Temperature Calibration Probe into the
calibration port to the rear of and below the bottle ramp
as shown.
The probe must be inserted all the way in until the handle
touches the case.
Run the cable as shown to help hold the probe in place.
Plug the probe interface cable into the matching
connector on the Temperature Calibration Interface (TCI)
box. Plug the RS-232 interface cable into the matching
connector on the TCI box and the Balance I/O port on the
back of the VAPOR PRO®. Plug the AC adaptor into a
110 VAC outlet.

Page 20
Turn the VAPOR PRO®ON. From the Main Test Screen, press [Menu] to bring up the MAIN
MENU. Toggle down (if necessary) so that CALIBRATION MENU is highlighted - press
[Selct]. At the Calibration Menu, toggle down until TEMPERATURE CALIBRATION is
highlighted - press [Selct].
Highlight ENTER DEVICE DATA and enter the appropriate
data for the interface serial number, probe serial number and
calibration/certification data.
•The interface and probe serial numbers and the
certification date are located on the temperature
calibration interface label (the black box).
Return to the TEMPERATURE CALIBRATION MENU, highlight
VERIFICATION SETUP and press [Selct].
•The purpose of the verification function is to confirm
whether the calibration was successful or not at a given set
of temperatures. The verification process can be run
automatically following the calibration by selecting ON at
the AUTO-VERIFY prompt.
•The rest of these instructions assume that the verification is being run automatically.
(AUTO-VERIFY: ON) If you do not wish to edit the temperatures, press [Esc] key
and move to the next step.
To select which temperature(s) will be verified, toggle down to the TEMP # prompt and press
[Edit].
•Using the arrow keys, enter the temperature you wish to verify and press [Quit] and
[Accpt]. The temperatures selected should be the ones that best represent those used
for your product(s). When finished, press [Esc].
Place an empty test bottle with a cap and new septum in the transport.
Highlight RUN TEMP CAL and press [Selct]. The next screen will ask to ensure that you have
the temperature calibration device. If the device is hooked up, press “Go.”
When the verification is complete, the screen will display:
•Verify: Passed or Verify: Failed
•Key Options of [Quit] and [Go]
Press [Go] to save the data.
If the unit failed at any given point, run the calibration again to improve the results.
If a printer is connected to the VAPOR PRO®, highlight PRINT TEMP CAL REPORT and
press [Selct] to print out the calibration report.
Calibration is complete. Disconnect the calibration interface.