ABLE Computrac Vapor Pro Rx Installation and operating instructions

Installation & Maintenance Instructions
Computrac® Vapor Pro® Rx
Moisture Analyser
Reading Office
Cutbush Park, Danehill, Lower Earley,
Reading, Berkshire. RG6 4UT. UK.
Tel: [phone]
Email: [email protected]
Aberdeen Office
Unit 6 Airside Business Park, Kirkhill Industrial Estate,
Dyce, Aberdeen. AB21 0GT. UK.
Tel: [phone]
Email: [email protected]
Internet: www.able.co.uk
e-procurement: www.247able.com
Registered in England No: 01851002
VAT No: GB 417 2481 61

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Computrac® VAPOR PRO®Rx
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 2002-2013 Arizona Instrument LLC
PLEASE NOTE: This manual covers both VAPOR PRO®Rx instrument models: the CT-3500 and the
CT-3500-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-3500 or a CT-3500-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 CHECK ......................................................................................................... 15
9. RH SENSOR CALIBRATION ......................................................................................................................... 17
10. TEMPERATURE CALIBRATION ................................................................................................................. 19
11. RUNNING MOISTURE TESTS ...................................................................................................................... 21
Selecting Test Settings .................................................................................................................. 21
Entering Material Name ............................................................................................................... 21
Selecting Programmed Test Temperature .................................................................................. 22
Selecting Units for the Final Result Display ............................................................................... 22
Selecting How to End the Test ..................................................................................................... 22
Selecting Sample Weight Entry Method ..................................................................................... 23
Selecting Bottle Purge Control ..................................................................................................... 24
12. DETERMINING OPTIMUM PARAMETERS .............................................................................................. 25
13. RUNNING MOISTURE TESTS USING UNSEALED BOTTLES ............................................................... 27
RUNNING LYOPHILIZED MOISTURE TESTS .................................................................... 27
14. COMPUTRAC® VAPOR PRO®RX MENU SYSTEM ................................................................................. 29
Memory Start Menu ..................................................................................................................... 31
Stored Data Menu (Not available on 21 CFR, Part 11 compliant instruments) .................... 31
Calibration Menu .......................................................................................................................... 32
Setup Menu .................................................................................................................................... 33
Diagnostic Menu ............................................................................................................................ 35
15. CONDITION PROMPTS AND SYSTEM FAILURE CODES ..................................................................... 36
Condition Prompts ........................................................................................................................ 36
System Failure Codes .................................................................................................................... 37
16. COMMONLY ASKED QUESTIONS .............................................................................................................. 38
17. REPAIR AND MAINTENANCE ..................................................................................................................... 42
ACCESS COVER REMOVAL .................................................................................................... 42
INSTRUMENT COVER REMOVAL ........................................................................................ 43
TO INSPECT THE FILTER AND TUBING: ............................................................................ 43
Q: “How do I change the filter?” Not on all instruments. ........................................................ 44
Q: “How do I Adjust the Dry Air Flow?” .................................................................................. 45
18. SPECIFICATIONS AND RATINGS ............................................................................................................... 47
19. WARRANTY ..................................................................................................................................................... 48
An updated electronic copy of this manual is available at 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 obtained by calling AZI Customer Service
at 1-602-470-1414 or 1-800-528-7411.
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. There are no user
serviceable parts or adjustments inside the unit except as
listed in this manual. Any maintenance inside the unit is
to be performed in strict adherence to the manual
procedures or 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 Analyzers 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 42.
•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 this moisture analyzer.
ENVIRONMENTAL CONDITIONS
Storage and Shipping
•Temperature should be between 0 °C to +40 °C (+32 °F to
+104°F).
•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 0-40º C @ 50% relative
humidity and 0-31º C @ 80% 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 operating the instrument 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®Rx is a giant step forward in the
measurement of very low moisture levels.
A revolutionary moisture analyzer with a detection limit of 100 ppm, the Computrac®VAPOR
PRO®Rx uses a sensor-based technology and correlates to the Karl Fischer (KF) coulometric
titration method (with an oven attachment) in precision and accuracy. The analyzer is simple to
operate, minimizes consumables, and does not utilize reagents.
Principles of Operation: The Computrac®VAPOR PRO®Rx 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®Rx 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 lab or production floor use, the Computrac®VAPOR PRO®Rx
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®Rx stores programmed memory settings for up to 102
materials and in instruments that are not 21 CFR, Part 11 compliant, 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®Rx 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 20 ml septum bottle or sealed freeze dried container. Volatiles, driven off 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 data 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 47, for detailed specifications and
operating limits.
Computrac®VAPOR PRO®Rx Basic Flow System

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4. UNPACKING
Unpack the instrument and locate the following items:
AZI Part Number
Computrac® VAPOR PRO®Rx
(CT-3500 or CT-3500-L)
CT 3500-L or
CT-3500-L-100V
CT 3500L-220V
differences
Accessory Kit Y990-0151
1
Power Cord (varies with area)
200-0002
USA/Canada 200-0003 England 200-0008 Europe
3'
Clear
Tubing, 1/8" X 1/4" 345-0050
1
Tweezers
690-0012
1
User’s Manual
700-0050
60
Septa, Sample Bott
le 990-0074
10
Sample Bottles, 20ml
990-0153
1
Sample Breaker
990-0154
1 Vial
1.0 ml Microcap, 100/Vial
990-0150
1
Inline Desiccator Kit
Y990-0116
1
Vapor Pro®
Hydrophobic Filter Kit Y990-0155
Optional Accessories:
Hydrophobic Filter
990-0059
101 key PC keyboard
990-0088
Travel case
990-0092
Digital balance with cable and Communications
Software
Y990-0082
PC graphics printer kit
Y990-0098
Mini Printer kit
Y990-0120
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 Y990-0164
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®Rx 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 Dry Air 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 follow.
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 below, 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

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•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. For
all but the dry air generator, adjust the pressure to the instrument between 17 and 22 psi (118-152
kPa) with 20 psi (138 kPa) preferred.
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 set 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 set
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 cannot be
adjusted but should be above 14.5 psi (100 kPa).
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.

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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, press [Menu] to reveal the
Main Menu.
Move the cursor down to highlight the Diagnostic Menu.
Press [Selct].
Verify that 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-3500-L or
100 ± 10 mL/min on a CT-3500, go to “How do I Adjust the Dry Air Flow?” on page 45.
CT-3500-L CT-3500
Return to the Main Test Screen by pressing [Esc] three times.

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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 [Memry]
•Then select DRYNESS TEST
Press [START].
•This test will run for two (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 5 µg, repeat the
Dryness Test up to four (4) times.
•If the result does not fall under 5 µg after the
4th test:
Check for moisture in the dry air supply line.
Check and/or change the hydrophobic filter, see page 44.
Call AZI Customer Service at [phone] or [phone].

Page 15
8. RH SENSOR CALIBRATION CHECK
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 new septa.
Ensure the septum is installed with the smooth, shiny, Teflon®liner to the inside of the bottle to
prevent moisture from the soft plastic from affecting the result.
Carefully remove a 1.0 µl Microcap, AZI P/N 990-0150 from the
storage bottle. Use 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.
Install a dry cap and septum on the sample bottle with the smooth, shiny
side of the septum to the inside of the 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:
•Press [Memry]
•Highlight RH SENSOR CAL
•Press [START]
Accuracy of results should be within five (5) percent of the capillary capacity, usually 1000
micrograms (950 to 1050 µg). If using a different value capillary tube, use ±5% of the value
listed on the container for the tolerance.
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. Calculations must be
performed by hand if the instrument is 21 CFR, Part 11 compliant.
After the 5th test:
•Press [Menu] for the MAIN MENU,
•Highlight STORED DATA MENU and press [Selct], (Not available in 21 CFR. Part
11 compliant instruments)
•Highlight ANALYZE STORED DATA and press [Selct],
•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. See the procedure beginning on page 17.
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%

Page 17
9. RH 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 990-0153
•Septa, Sample Bottle 990-0074
•Capillary Tubes, 1.0 µl, 100/vial 990-0150
Carefully remove a capillary tube from the
storage bottle. Use 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. 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.
Install a dry cap and septum on the sample bottle with the smooth,
shiny side of the septum to the inside of the 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:
•Press [Memry],
•Highlight 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 tests results are available, press [Menu] and the Main Menu Screen appears.
•Select CALIBRATION MENU.
•Select PERFORM RH SENSOR CAL.
•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.
•If necessary, use [Edit] to change the value of the capillary tube in grams. 1.0 µl =
1000 µg, .5 µl = 500 µg, and .1 µl = 100 µg.
•Press [Go]. A 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 Tests used for this calibration will be automatically deleted so they
will not be used for the next calibration.
Press the [Esc] key until 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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10. TEMPERATURE CALIBRATION
TIP: The temperature calibration and verification take approximately five (5) hours.
Parts Required in addition to the VAPOR PRO®RX
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 or
Y990-0120 Graphics or Mini Printer kit 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 behind the instrument as shown to the right
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 instrument. Plug the AC adaptor into an appropriate isolated
power outlet.

Page 20
Turn the VAPOR PRO®Rx ON. From the Main Test Screen, press [Menu] to bring up the
MAIN MENU. Press [Down] (if necessary) so that CALIBRATION MENU is highlighted -
press [Selct]. At the Calibration Menu, press [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 date.
•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] and move to the next step.
To select which temperature(s) will be verified, press [Down] to the TEMP # prompt and press
[Edit].
•Using the [Incr] and [Decr] keys, enter the temperature you wish to verify and press
[Quit], then [Accpt]. The temperatures selected should be the ones that best
represent those used for your product(s). When finished, press [Esc].
Place a bottle with cap and clean septa on 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 instrument, highlight PRINT TEMP CAL REPORT and press
[Selct] to print out the calibration report.
Calibration is complete. Disconnect the calibration interface.