Arizona Instrument JEROME J405 User manual

AZI P/N 700-0099-N
Last update May 2017
USER MANUAL
JEROME®J405
MERCURY VAPOR ANALYZER
May 2017
Firmware Version 1.3X
ARIZONA INSTRUMENT LLC
3375 N Delaware Street | Chandler, AZ 85225 USA
800.528.7411 | 602.470.1414 | f 602.281.1745
www.azic.com
Email:
General – [email protected]
International – [e-mail]
Customer Service – su[email protected]

AZI Customer Service 800-528-7411 or 602-470-1414 Page 2 of 61
JEROME®J405
Mercury Vapor Analyzer
Operation Manual
PROPRIETARY RIGHTS NOTICE
This manual contains valuable information and material developed by Arizona Instrument LLC
for use with the Jerome®J405 Mercury Vapor Analyzer. 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 2006-2017 Arizona Instrument LLC
Resisorb®is a registered trademark of Avantor Performance Materials.
AddSorb®is a registered trademark of Jacobi Carbons.
Tygon®is a registered trademark of Saint-Gobain Performance Plastics Corporation.
Sofnolime™ is a trademark of Molecular Products Limited.
Windows®is a registered trademark of Microsoft Corporation in the United States and other
countries.

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Table of Contents
1. UNPACKING THE INSTRUMENT...........................................................................5
2. INTRODUCTION.........................................................................................................7
3. JEROME®J405 TECHNICAL SPECIFICATIONS.................................................9
4. PRINCIPLE OF OPERATION...................................................................................10
Zero Air Filter (AZI P/N Z2600 3905)............................................................................11
5. INSTRUMENT OPERATION.....................................................................................12
J405 Main Screen Display...............................................................................................12
J405 Back Panel Connections..........................................................................................13
J405 User Interface Main Menu Structure.......................................................................14
SAMPLE menu................................................................................................................15
REGEN menu ..................................................................................................................17
DATA menu.....................................................................................................................18
SYSTEM menu................................................................................................................20
Daily Operations..............................................................................................................22
Sensor Regeneration ........................................................................................................23
Sample Mode ...................................................................................................................24
Survey Mode....................................................................................................................25
Operating on AC Power or Generator .............................................................................26
Operating on Internal Battery Power...............................................................................26
Battery Management........................................................................................................26
External Battery Power....................................................................................................27
Charging Internal Battery ................................................................................................28
Retrieving Data................................................................................................................29
Instrument I/O Interface...................................................................................................30
4-20mA Output................................................................................................................30
6. MAINTENANCE..........................................................................................................32
Preventive Maintenance Schedule...................................................................................32
Flow System ....................................................................................................................33
.25 inch Fritware Filter ..............................................................................................33
AG Filter Check.........................................................................................................34
Internal Filters............................................................................................................35
Replacing the Battery Pack..............................................................................................36
7. CALIBRATION............................................................................................................37
Factory Calibration Service .............................................................................................37
Verification of Functionality............................................................................................37
8. J405 TROUBLESHOOTING.......................................................................................38
Potential Interferences .....................................................................................................41
9. ACCESSORIES & MAINTENANCE PARTS...........................................................42
Spare Parts and Accessories.............................................................................................43
10. APPENDIX A – USB/HYPERTERMINAL SETUP..................................................47
11. APPENDIX B – J405 FUNCTIONAL TEST KIT.....................................................54
Preparation.......................................................................................................................54
Mercury Transfer.............................................................................................................55
Replacing Mercury...........................................................................................................55
Syringe Technique ...........................................................................................................56

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Functional Test Procedure...............................................................................................57
J405 FTK Instrument Response Chart ............................................................................58
Functional Test Troubleshooting.....................................................................................59
12. WARRANTY ................................................................................................................60
All section numbers, titles and page numbers in BOLD in this manual are hyperlinks and can be
clicked to simplify navigation within the PDF version of the manual. The BACK button found in
most PDF software programs is also very helpful when navigating using the hyperlinks.
An up-to-date electronic copy of this manual can be found at:
http://www.azic.com/downloads.aspx
NOTE: For EPA clean-up levels less than 3 μg/m3, it is necessary to run a warm-up
routine before sampling. To initiate the automatic five minute warm-up, install a Zero Air
Filter (AZI P/N Z2600 3905) in the intake and select Warmup from the REGEN menu.
Refer to the Daily Operations section for more information.

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1. UNPACKING THE INSTRUMENT
This manual contains details that will optimize the results and the life of your instrument. Read
and refer to the manual for complete details on operation, maintenance and troubleshooting,
special voltage inputs and data output.
The Jerome®J405 is easy to operate and ready for use upon receipt from the factory.
•Remove the instrument from the packing material.
Retain all packaging materials for any future shipment of the
instrument.
If the instrument is returned to AZI for any reason, it must be
placed in the original packaging materials that have been tested and
proven to be effective protection during shipment.
•Call AZI Customer Service at 800-528-7411 or 602-470-1414 or go to the AZI website
www.azic.com for Return Material Authorization (RMA) information prior to returning a
unit.
•Boxes and packing materials for all shipments are available from AZI.
•Pack the Jerome®instrument only in a Jerome®shipping container.
AZI WILL NOT BE RESPONSIBLE FOR SHIPPING DAMAGE.
IF YOU RETURN THE INSTRUMENT IMPROPERLY PACKAGED OR
SHIPPED,
YOU SHOULD INSURE IT FOR FULL VALUE.
•Check for any damage and confirm receipt of all parts
on your packing list. Contact Arizona Instrument
Customer Service at [phone] or
(602) 470 -1414 if you have any questions.
•Press the I/O button. The display will light up and
show instrument serial number and software revision.
If necessary, press ESC to clear any calibration
reminders. Call AZI Customer Service at
800-528-7411 or 602-470-1414, or e-mail
[email protected], to schedule instrument
calibration.
•The digital meter displays 0.00 μg/m3(or 0.000 mg/m3).
•Look at the battery icon in the top center of the display
to determine the current battery level.
If the battery icon is empty and flashing, recharge
the battery. See page 28.
•The included AC power supply/charger can utilize 110V or 220V AC power, and it is not
necessary to manually select the input voltage.
•The J405 contains an auto-resetting fuse that does not require care, maintenance or
replacement by the user.

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•Perform a sensor regeneration by following these steps:
Connect the AC power supply/charger between the matching (DIN) connector on the back
of the J405 and an AC power outlet or connect the external battery pack to the back of the
J405.
If the J405 is turned off, press the I/O power button to turn the instrument on.
Press the RIGHT arrow button (►) to enter the main menu.
Press the DOWN arrow button (▼) to move the cursor to Regen.
Press the RIGHT arrow button (►) to select Regen from the menu.
Press the ENTER/START button on the keypad to select Regen Now from the Regen
menu.
The instrument will respond with “Perform Regen Using EXTERNAL POWER?”
Press ENTER/START to proceed or ESC to exit.
The instrument display will warn “Do Not Disconnect External Power while Heating”.
Press ENTER/START to proceed or ESC to exit.
The instrument will now begin a 45-minute regeneration cycle, indicated by
Regeneration in Progress on the display. Do not interrupt this cycle. For a complete
description of this process, see page 23.
If any error message appears on the display, see the “Troubleshooting” section
beginning on page 38.
•Ensure the instrument has been powered on for at least five (5) minutes prior to sampling.
•The instrument is now ready to sample.
•Press the SAMPLE BUTTON at the end
of the handle of the J405 to start a
16-second sampling cycle.
•When the instrument measures mercury
vapor, the 0.00 μg/m3(or 0.000 mg/m3)
display will be replaced with a value.
•To ensure the input to the instrument
contains no mercury vapor or mercaptans, use a Zero Air Filter (AZI P/N Z2600 3905). The
Zero Air Filter cleans the air sample and should produce sample readings of 0.00 μg/m3(or
0.000 mg/m3). Therefore, use the filter to:
Equilibrate the instrument to temperatures that are higher or lower than the instrument.
Sample every 15 seconds with the filter installed until the reading is 0.00 μg/m3(or
0.000 mg/m3).
Identify contamination within the unit.
Confirm the presence of mercury vapor when readings are elevated. Install the filter and
verify that the readings decrease with the filter installed.
•The instrument is designed for ambient air monitoring.
•The instrument is not explosion proof.
•Perform sensor regeneration before each day’s use.
•Perform another sensor regeneration after each day’s use.
•During periods of storage or inactivity, perform sensor regeneration every 30 days.
Call AZI Customer Service at [phone] or [phone] if you have any questions.
If you prefer, you may send e-mail to [email protected].
WARNING
DO NOT allow the probe or the instrument’s intake to be exposed to any liquid.
DO NOT obstruct the intake or exhaust ports of the J405, as this could cause errors
in readings and damage to the flow control system.

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2. INTRODUCTION
The Jerome®J405 Mercury Vapor Analyzer is an ambient air analyzer with a range of 0.5 to 999
micrograms of mercury vapor per cubic meter (µg/m3Hg).
CAUTION:
The Jerome®J405 is for gaseous vapor use only.
DO NOT allow the probe or the instrument's intake
to be exposed to any liquid, dust
or other foreign material.
The J405 is designed to be easy to operate for quick and accurate analysis of mercury vapor
levels. It has few maintenance requirements. However, please take a moment to read this manual
before attempting operation. If you have any questions about your application or operation,
please call AZI Customer Service at [phone] or [phone] or e-mail
[email protected] for assistance.
J405 Features
•Much lower detection levels than the previous Jerome®models.
•3 ½ inch (9 cm) backlit display, showing everything you need to be confident in the
instrument, including 5/8 inch (1.6 cm) tall character readout, battery charge indicator,
and sensor saturation percentage.
•Choice of units for results: micrograms per cubic meter (µg/m3) (default) or
milligrams per cubic meter (mg/m3).
•Easy to understand diagnostic and error detection.
•Auto zero bridge adjustment.
•Updated electronics including 24-bit a/d conversion and on-board storage for 20,000
samples.
•Controlled temperature film heat ensures the sensor removes all mercury and returns
to its original state.
•The Jerome®J405 can be operated for 24 hours from the internal 12V battery source
or it can be operated using the external AC power supply/charger.
Accessories and Maintenance Parts
The Accessories and optional items available to support the J405 are listed and pictured beginning
on page 42.

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Applications
•Regulatory detection compliance
•Regulatory clean up compliance
•Ambient air analysis
•Quality control
•Scrubber efficiency testing
•Accuracy check for other mercury vapor monitors and control systems
•Mercury vapor source detection
•Leak detection
•Portable mercury vapor detection. (The Jerome®J405 is operated from an internal
12V battery source. For charging the batteries, an external AC power supply/charger
is included.)

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3. JEROME®J405 TECHNICAL SPECIFICATIONS
Display Range*
Units: µg/m
3
Units: mg/m
3
0.5 μg/m3to 999 μg/m30.001 mg/m3 to 0.999 mg/m3
Resolution 0.01μg/m3 Hg 0.001 mg/m3Hg
Response time-sample mode
16 seconds
Response time-survey mode
2 seconds
Flow rate
750 ± 50 cc/min (0.75 ± 0.05 liters/min)
Power requirements
12 VDC for the instrument
(provided by the internal battery, AC power supply/charger,
external battery pack or car accessory adapter)
100-240VAC, 47-63Hz, 3.2A for the AC power supply/charger
Fuse
Auto-resetting fuse
Internal battery pack
Rechargeable nickel metal hydride (NiMH)
Operating environment
0 °C to 45 °C, non-condensing, non-explosive
Case construction
Aluminum, powder coated
Dimensions
11 in L x 6 in W x 6.5 in H (28 cm L x 16 cm W x 17 cm H)
Weight
5.3 pounds (2.4 kilograms)
Digital meter display
3 ½ inch (9 cm) liquid crystal display (LCD)
Data storage capacity
20,000 samples
Output Digital: USB serial data to PC, printer or USB flash drive Analog: 4-20mA current loop (requires external power source)
Accurate to 0.3% of output
Certifications
TUV 61010, CE
Accuracy and Precision:
Calibration Point
Accuracy**
Precision (RSD)
1.0 μg/m3
±
10%
15%
25 μg/m3
±
5%
3%
100+ μg/m3
±
5%
3%
*Sample values below 0.5 μg/m3or 0.001 mg/ m3will be recorded and displayed as 0.00 μg/m3or
0.000 mg/m3respectively by the J405. Sample values above 999 μg/m3(0.999 mg/m3) will be
recorded and displayed as “High Concentration.”
**After changing the AG filter, accuracy at 1.0 µg/m3may change from ±10% to ±20%, and
accuracy at 25 µg/m3and 100µg/m3may change from ±5% to ±7%. RSD is unchanged.

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4. PRINCIPLE OF OPERATION
The heart of the J405 is the well-proven gold film sensing technology. A thin gold film, in the
presence of mercury vapor, undergoes an increase in electrical resistance proportional to the mass
of mercury vapor in the sample.
When the SAMPLE button is pressed, an internal pump pulls ambient air through a scrubber filter
(AZI P/N: 600-0262) and into the flow system.
After three seconds, the sample solenoid bypass opens, closing off the scrubber filter from the
flow system.
The sample air passes through the AG filter (AZI P/N: 600-0293), an acidic gas filter that
removes any acidic gases that interfere with the sensor's response to mercury. Then the sample
air is drawn over the gold film sensor. The sensor adsorbs the mercury vapor. Eleven seconds
after starting, the sample solenoid bypass closes and the remainder of the sample is drawn through
the scrubber filter and the flow system. The instrument determines the amount of mercury
adsorbed and displays the measured mercury concentration on the digital meter in micrograms per
cubic meter (µg/m3) or milligrams per cubic meter (mg/m3) of mercury.

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The instrument’s microprocessor automatically re-zeroes the digital meter at the start of each
sample cycle and holds the meter reading until the next sample cycle is activated, thus eliminating
drift between samples.
During the sample mode cycle, a sensor saturation meter on the LCD represents the percentage of
sensor saturation, or adsorbed mercury collected on the gold film. With use, the sensor becomes
saturated and needs to be cleaned. This is accomplished by a manually activated 45-minute
sensor regeneration cycle, which removes the mercury from the sensor. The solenoid bypass
closes during the sensor regeneration cycle, causing the air to pass through the scrubber filter,
providing clean air for the regeneration process. The closed loop film heat cycle ensures the
sensor is cleaned to original values. The mercury released during regeneration is absorbed by the
flow system’s final scrubber filter (AZI P/N: Z2600 3930) to prevent any external contamination
from the desorbed mercury. The 45-minute regeneration process includes a cool-down phase, so
the instrument is ready for use as soon as the regeneration process finishes.
Zero Air Filter (AZI P/N Z2600 3905)
The Zero Air Filter (AZI P/N Z2600 3905) removes mercury vapor, mercaptans, and hydrogen
sulfide from the air sample. Readings with the filter installed should be near 0.00 μg/m3. For
maximum accuracy, wait 15 seconds between samples to allow the sensor to restabilize.
Because air that is cooler than the instrument will cause low readings and warmer air will cause
higher readings, the Zero Air Filter should be used to equilibrate the instrument to ambient air.
Repeated sampling with clean air will not cause saturation of the gold film sensor but will
equalize temperatures faster to allow accurate analysis to begin sooner. For maximum accuracy,
wait 15 seconds between samples to allow the sensor to restabilize.
The Zero Air Filter can also be used to identify contamination within the instrument. If the
readings do not reduce to near 0.00 μg/m3with the filter installed, contamination should be
suspected. If the readings do drop to near 0.00 μg/m3with the filter installed but elevate with the
filter removed, the presence of mercury vapor at the sampled location is confirmed. Again, for
maximum accuracy, wait 15 seconds between samples to allow the sensor to restabilize.
The Zero Air Filter should be inserted into the intake of the instrument when running the
instrument Warm-up. See Warm-up in the section REGEN menu on page 17 for more
information.
For more information on the use of the Zero Air Filter, contact customer service at
1-800-528-7411 or 602-470-1414.

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5. INSTRUMENT OPERATION
J405 Main Screen Display
The J405 Main Screen is depicted below, followed by explanations of the labeled items.
SYSTEM TIME – As set in the SYSTEM menu. (See SYSTEM menu on page 20).
BATTERY – Indicates current charge level and charging status (See Charging Internal Battery
on page 28)
SOUND ICON – Indicates if the audible alarm is turned on or muted, as set in the SYSTEM
menu. (See SYSTEM menu on page 20).
SYSTEM DATE – As set in the SYSTEM menu. (See SYSTEM menu on page 20).
SENSOR SATURATION METER – Graphically indicates mercury saturation level of J405
sensor. (See REGEN menu on page 17).
USB ICON – Indicates proper functioning of USB ports, and flashes during USB transmission of
data. (See Retrieving Data on page 29). If the USB icon is not present, this option is
not activated. Contact your AZI Sales Representative for details on the USB option.
AUTO SAMPLING INDICATOR – Indicates if the J405 is set to sample automatically at
regular intervals, as set in Sample Mode in the SAMPLE menu. (See SAMPLE menu
on page 15).
MERCURY READING – The mercury concentration detected by the J405, in the units
indicated.
UNITS – Units of mercury concentration reading, either micrograms per cubic meter (μg/m3) or
milligrams per cubic meter (mg/m3), as set in the SAMPLE menu.
AVAILABLE KEYPAD COMMANDS – The bottom line of the screen indicates the currently
available keypad commands. From the main screen, as shown here, the Main Menu can
be accessed using the ► key.

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J405 Back Panel Connections
The above-labeled connections are available from the back panel of the J405. If the USB option
has not been activated, the USB ports will not be present. Contact your AZI Sales Representative
for information on the USB option.
POWER CONNECTOR – Connect the supplied AC power supply/charger, the optional external
battery pack (AZI P/N: 990-0214), or the optional car accessory jack (AZI P/N: 200-0170) here to
provide power to the instrument or to recharge the battery.
USB TYPE “A” PORTS – The USB Type “A” ports are used to connect a USB printer or USB
flash drive for printing or saving sample data or to connect a USB keyboard for menu navigation
or data entry. The two ports are identical, and either can be used. For more information, see
DATA menu on page 18.
USB TYPE “B” PORT – The USB Type “B” port is used to connect the J405 directly to the
USB port of a computer, using the included USB A to B cable (AZI P/N: 200-0165). For more
information see DATA menu on page 18.
DB25 CONNECTOR – There are multiple specialized uses for the DB25 connector. See
Instrument I/O Interface on page 30 for more information. NOTE: This is not a printer port.
EXHAUST PORT – After sampling, the sampled air is cleaned of any mercury and expelled
from the exhaust port on the back of the J405.

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J405 User Interface Main Menu Structure
NOTE: The main menu also contains a selection labeled “Factory.” This option is for AZI
factory use only and is not accessible by the end user.

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A USB keyboard (AZI P/N: 990-0230) can be used to navigate the menu system and for data
entry for items such as Location Names. Connect the USB keyboard to one of the two USB Type
“A” ports on the back of the instrument. Either upper or lower case characters may be entered
when using a USB keyboard, while only upper case letters are available from the J405 keypad.
SAMPLE menu
SAMPLE MODE
The Sample Mode setting provides the choice between auto-sampling and manual sampling. For
normal use, use manual sampling, which is the instrument default setting. If auto-sampling is
selected, the instrument will automatically sample at the interval set in SET SAMPLE
INTERVAL (below) without monitoring or attendance by the user. Use the ▲and ▼arrows to
toggle between Manual and Auto, and use ENTER/START to save the selection. Use the ESC
key to exit without saving changes. If auto-sampling is selected, the word Auto will appear below
the system date on the instrument’s main screen.
UNITS
Sample results can be displayed in micrograms per cubic meter (µg/m3) or milligrams per cubic
meter (mg/m3). To change the displayed units, select UNITS from the SAMPLE menu. Use the
▲and ▼ arrows to toggle the selection, and press ENTER/START to save the selection. Use the
ESC key to exit without saving changes. The default selection is µg/m3, and µg/m3is used
throughout this manual for consistency. The relationship between µg/m3and mg/m3is as follows:
1000 µg/m3= 1 mg/m3and 1 µg/m3= 0.001 mg/m3
When the selected unit is changed with the UNITS menu item, all internally stored samples are
converted and displayed with the new selected unit, regardless of what unit was in use when the
sample was taken originally.
SET SAMPLE INTERVAL
If auto-sampling is being used (as set in SAMPLE MODE above), the sample interval
determines how often the J405 will automatically take samples. Use the ▲and ▼arrow keys to
scroll through the available sample intervals of 1, 2, 5, 10, 15, 30, 45, 60, 90 and 120 minutes, and
use ENTER/START to save the selected interval. Use the ESC key to exit without saving
changes.
The sample intervals refer to specific times on the instrument clock as measured in whole
multiples of the selected interval. For example, selecting a 10-minute sample interval will result
in samples being taken on the hour, 10 minutes after the hour, 20 minutes after the hour, etc., not
every ten minutes from when auto-sampling is initiated. Refer to the chart on the next page for
examples of how these intervals work. When the clock reads :00 seconds at the appropriate time,
the sample will be taken.

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Interval
Samples on the:
Examples:
1 minute 1-minute marks 12:00, 12:01, 12:02, 12:03, 12:04, 12:05, 12:06, etc.
2 minutes 2-minute marks 12:00, 12:02, 12:04, 12:06, 12:08, 12:10, 12:12, etc.
5 minutes 5-minute marks 12:00, 12:05, 12:10, 12:15, 12:20, 12:25, 12:30, etc.
10 minutes 10-minute marks 12:00, 12:10, 12:20, 12:30, 12:40, 12:50, 1:00, etc.
15 minutes Quarter hour 12:00, 12:15, 12:30, 12:45, 1:00, 1:15, 1:30, etc.
30 minutes Half hour 12:00, 12:30, 1:00, 1:30, 2:00, 2:30, 3:00, etc.
45 minutes
Times that are an even
45 minutes from
midnight or noon
12:00, 12:45, 1:30, 2:15, 3:00, 3:45, 4:30, 5:15, 6:00,
6:45, 7:30, 8:15, 9:00, 9:45, 10:30, 11:15, etc.
60 minutes Hour 12:00, 1:00, 2:00, 3:00, 4:00, 5:00, 6:00, etc.
90 minutes
Times that are an even
90 minutes from
midnight or noon
12:00, 1:30, 3:00, 4:30, 6:00, 7:30, 9:00, 10:30, etc.
120 minutes
Times that are an even
120 minutes from
midnight or noon
12:00, 2:00, 4:00, 6:00, 8:00, 10:00, etc.
SET LOCATION NAME
Up to 80 unique location presets are available using the J405. This feature is useful if sampling is
done in multiple locations and there is a need to record which readings came from which
locations. Use the ▲and ▼arrows to scroll through the list of 80 presets until the location to be
edited is highlighted. Press ENTER/START to begin editing the name of the selected location.
Use the ▲and ▼arrows to scroll through the available alphanumeric characters and punctuation.
When the desired character is displayed, use the ► arrow to move to the next character field. If a
mistake is made, the ◄ arrow can be used to return to the previous character. When the location
has been named as desired, press ENTER/START to save the location name, and return to the
list of locations. To select an existing location from the list for the samples to be taken, use the
▲and ▼arrows to scroll to the desired location, and press ENTER/START twice. Note the
asterisk (*) located to the left of the currently selected location. The selected location name will
be stored with the sample data for all samples taken until a different location is selected instead.
After deleting data, it is necessary to re-select the Location Name before taking any samples,
otherwise the location will not be recorded. Use ESC to return to the sample menu. See
Retrieving Data on page 29 for more info.
DOSIMETER SAMPLE
Not currently available.
WARNING
The J405 is not intended for continuous sampling 24 hours a day / 7 days a week.
Continuous sampling may reduce sensor life and may affect your warranty.

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SURVEY MODE
Highlight SURVEY MODE in the SAMPLE menu and press ENTER/START to begin
immediate sampling in survey mode. In survey mode, after an initial two-second pause to purge
the flow system, the J405 will sample continuously. For complete information on survey mode,
see Survey Mode on page 25.
REGEN menu
The sensor saturation meter on the main screen (to the right of s. sat) indicates the current level of
saturation of the sensor with mercury.
Clean/Regenerated Sensor
Partially Saturated Sensor
Saturated Sensor –
Regen Required
When the sensor becomes saturated with mercury, as indicated by the sensor saturation meter, a
regeneration (regen) must be performed on the sensor to release the accumulated mercury, before
additional samples can be taken. See Sensor Regeneration on page 23 for more information on
the regen procedure.
The AC power supply/charger or the external battery pack must be plugged into the back of the
instrument before a regen can be performed.
The following options are available from the REGEN menu:
REGEN NOW
Connect external power to the instrument before performing a regen.
Highlighting REGEN NOW and pressing ENTER/START will start the sensor regeneration
process. Press ENTER/START again on the next screen to confirm your choice, and press
ENTER/START again after reading the warning that appears. The regeneration will now begin.
Do not disconnect external power during the regeneration.
WARMUP
To ensure maximum accuracy when sampling at cleanup levels less than 3 µg/m3, the J405 must
be warmed up with the Zero Air Filter in the intake, at the location to be sampled. To run the
warm-up, insert the Zero Air Filter in the intake, highlight WARMUP and press
ENTER/START. While warming up, the pump will run and the J405 will display a 5-minute

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countdown. When the warm-up finishes, remove the Zero Air Filter and begin normal sampling.
If the J405 is idle for more than 20 minutes, another warm-up is required to maintain maximum
accuracy at these low levels.
SET INTERVAL
If auto-sampling is being used (as set in SAMPLE MODE above), the J405 can be configured to
automatically perform sensor regenerations at a predetermined interval. Use the ▲and ▼arrows
to scroll through the available intervals of 6, 12, 24 and 48 hours and Saturation, and press
ENTER/START to save the selected interval. The J405 will now automatically perform a
sample followed by a regen every 6, 12, 24, or 48 hours starting at the time set in SET HOUR
below or when the sensor is saturated, as selected. Use ESC to exit without saving.
SET HOUR
Use the ▲and ▼arrow keys to select the hour of the day (using a 24-hr clock) to start
regeneration. Press ENTER/START to save the setting. At the time set, if auto-sampling is
being used, the J405 will automatically take one sample and then perform a sensor regeneration.
This process will repeat at the interval indicated in SET INTERVAL above. Use ESC to exit
without saving.
NOTE: If the sensor is saturated and a regeneration cycle is performed and completed before the
set hour, the instrument will perform another regeneration at the set hour. However, if the
regeneration cycle does not complete prior to the set hour, the regeneration at the set hour will be
skipped.
DATA menu
Sample data can be stored within the instrument, up to a maximum of twenty thousand (20,000)
data points. On instruments that have the USB Communications option, data can be retrieved
from the instrument in one of three ways:
1. SEND TO PC
2. SAVE TO USB FLASH DRIVE
3. PRINT DIRECTLY TO AN AZI APPROVED PRINTER (AZI P/N: Y990-0098)
The presence of the USB icon on the main screen indicates that the Communications option has
been purchased and that the USB ports are functioning properly. The USB icon will flash during
data transmission. See J405 Main Screen Display on page 12 for the location of the USB icon.
The data is stored in non-volatile memory and will not be affected if the battery is changed or
disconnected.
VIEW STORED DATA
Select VIEW STORED DATA to view previous sample and regeneration history on the screen
of the J405. The Location Name (if specified) corresponding to the data is displayed at the top of
the screen and three sample values at a time are displayed at the bottom of the screen, along with
the date and time the sample was taken. The most recent sample is displayed at the top of the list,
and regenerations are indicated by the word “Regen” instead of a sample value. Use the ▲ and
▼ arrow keys to scroll through the data. If Location Names are used, the Location Name
displayed will automatically update during scrolling to reflect the sampling location of the data
being displayed. The J405 will beep-beep upon reaching the end of the list. After viewing the
data, press ESC to exit and return to the DATA menu.

AZI Customer Service 800-528-7411 or 602-470-1414 Page 19 of 61
On instruments that have the USB Communications option, all of the data is accessible from the
VIEW STORED DATA menu selection. On instruments that do not have the USB
Communications option, only the previous two samples are stored.
SAVE TO USB DRIVE
Before selecting SAVE TO USB DRIVE, connect the target USB flash drive
(AZI P/N: 990-0219) to either USB TYPE “A” PORT on the back panel of the J405. When
ENTER/START is pressed, all of the stored data on the J405 will be transmitted to the target
drive as a comma-delimited text file. See Retrieving Data on page 29 for more information.
NOTE: The J405 is NOT compatible with USB flash drives that have the U3 program
pre-installed. Do not use USB flash drives that have the U3 program with the J405.
SEND TO PC
Before using SEND TO PC, the USB driver must be installed on the target PC, and
HyperTerminal must be configured on the target PC. The USB driver is on the J405 CD or the
AZI Documents USB Drive, and on the AZI website at www.azic.com. See APPENDIX A –
USB/HYPERTERMINAL SETUP on page 47 for detailed instructions on installing the USB
driver, configuring HyperTerminal (if being used), and downloading data from the J405. Once
the target PC has been configured, connect the included USB A to B cable (AZI P/N: 200-0165)
between the USB TYPE “B” PORT on the back panel of the J405 and the USB PORT of the
target computer, and launch HyperTerminal. On the J405, with SEND TO PC highlighted, press
ENTER/START, and all of the stored data on the J405 will be transmitted to the target computer
as a comma-delimited text file. See Retrieving Data on page 29 for more information.
PRINT DATA
Before selecting PRINT DATA, connect an AZI printer (AZI P/N: Y990-0098) to either USB
TYPE “A” PORT on the back panel of the J405 using the cable supplied with the printer. When
ENTER/START is pressed, all of the stored data on the J405 will be printed on the attached
printer. See Retrieving Data on page 29 for more information.
VIEW MEMORY USAGE
The J405 can store up to 20,000 data points. Selecting VIEW MEMORY USAGE will display
what percentage of the data storage area is in use. Once the data memory is full, no additional
data can be stored until the data on the instrument is deleted. If the memory is full, the J405 will
continue to perform as expected, but it will indicate that the memory is full and no new sample
data will be retained. The storage area can be cleared using DELETE DATA as described
below.
DELETE DATA
Selecting DELETE DATA will delete all sample data stored on the J405. Prior to deletion, the
J405 will prompt the user for confirmation as a precaution.

AZI Customer Service 800-528-7411 or 602-470-1414 Page 20 of 61
SYSTEM menu
The SYSTEM menu is password protected to prevent unwanted or accidental changes to
operating parameters. The default initial password is AZI, but should be changed to something
unique if restricted access to the SYSTEM menu is desired. The password can be up to 10
characters long.
When the SYSTEM menu is selected from the Main Menu, the J405 will prompt for the
password. Input the password using ▲ and ▼ to change the alphanumeric character, and ► and
◄ to move between characters. Press ENTER/START to proceed after entering the password.
When the correct password is entered, the J405 will offer the option to change the password by
pressing the Akey or to proceed to the SYSTEM menu by pressing ENTER/START. The
SYSTEM menu will then remain unlocked until the instrument is powered off and back on.
SET ALARM LEVELS
When sampling, if the mercury level exceeds the selected alarm level, the word “ALARM” will
flash on the J405 display. If AUDIBLE ALARM is set ON, the J405 will also beep three times.
Two different alarm levels can be set using this menu option. Use the ▲and ▼arrow keys to
change the value of the blinking field, and the ► arrow to move to the next character in the alarm
level setting. Typically, the high alarm is used for an industrial alarm level, while the low alarm
is set to a residential value. Use the Aand Bbuttons to switch between the high and low alarm
settings by pressing Ato select the high alarm or Bto select the low alarm. Once the alarm level
has been set, press ENTER/START to select the highlighted alarm level as the current alarm
level to be used. Upon returning to the SET ALARM LEVELS screen, there will be asterisk
next to the currently selected alarm level (either high or low). It is recommended to set the alarm
level higher than 0.5 μg/m3. The alarm can be muted using AUDIBLE ALARM ON/OFF in the
SYSTEM menu.
AUDIBLE ALARM ON/OFF
Use the ▲and ▼arrow keys to toggle the audible alarm on or off, and use ENTER/START to
save the desired setting. Press ESC to exit without saving changes. The main screen display has
a sound icon that indicates if the alarm is currently turned on or muted. The action lines in front
of the sound icon will disappear when the audible alarm is muted. See J405 Main Screen
Display on page 12 to locate the sound icon.
DISPLAY MODE
From the DISPLAY MODE screen, use the ▲and ▼arrow keys to toggle between Threshold
and Scientific display modes, and press ENTER/START to save the setting. In Scientific display
mode, the J405 displays the sample reading for every sample taken. In Threshold display mode,
the sample reading must be within 85% of the set alarm level to be displayed. Results below 85%
of the alarm level value will be displayed as 0.00 μg/m3instead. Use ESC to exit without saving.
See SET ALARM LEVELS above to set Threshold limits.
NOTE: Threshold display mode cannot be used with auto-sampling. If this combination is
accidentally used, testing may halt. If this occurs, cycle power to the instrument and then turn off
either Threshold display mode or auto-sampling.