Honeywell Lumidor MicroMax Pro Operating Manual
User & Maintenance Manual
MicroMAX Pro
MAN-MAXPRO
REV. B.0.
OTHER LUMIDOR PRODUCTS
Other Lumidor Products
Please visit our website at www.lumidor.com for other
products that may be applicable to your needs.
DISCLAIMER
Notwithstanding any stated, written or implied warranty that
may be associated with the sale, purchase, or use of its
products, Lumidor, 11221 Interchange Circle South, Miramar,
Florida, 33025, a subsidiary of Zellweger Analytics, will not be
responsible for any damage or injury resulting to any person or
property that may be construed as resulting from a malfunction
of any of our products if said product has not been operated or
maintained in accordance with our instructions as detailed in
instruction sheets or printed manuals, or if the product has
been tampered with, or serviced by, any other than our factory
or other authorized service agent.
Copyright Lumidor, June 2000.
Printed in U.S.A.
MAN-MAXPRO
REV: B.0
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Cautions and Warnings
CAUTIONS AND WARNINGS
WARNING
DO NOT PROCEED BEFORE READING
To ensure proper functioning and use of this product, do
not use this instrument until you read and completely
understand this operating manual. It contains operating
and maintenance procedures to ensure proper instrument
function. For your safety, you are required to calibrate this
instrument periodically. Please refer to the calibration
section of this manual
Substitution of components may impair intrinsic safety.
Use only MPRO-BPR NiMH rechargeable battery pack, or
MPRO-BPA alkaline battery holder with four each of the
following alkaline cells only: Duracell Procell-2400,
Duracell MN-2400, and Eveready E-92 or EN-92. Observe
proper polarity when installing alkaline batteries.
CAUTION
Do not change or charge batteries in a hazardous location.
The LEL (Lower Explosive Level) range of this monitor is
factory calibrated to methane. If monitoring a different
combustible gas, calibrate the combustible gas range of
the monitor to the appropriate gas.
This instrument has not been tested in atmospheres
exceeding 21% oxygen.
Calibration is required when sensors are changed or
added to the instrument.
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CAUTIONS AND WARNINGS
WARNING
Use only the approved accessories indicated in this
manual.
Do not connect the instrument to a PC in a potentially
hazardous environment.
AUSTRALIAN OR NEW ZEALAND
CUSTOMERS:
Use only supplied type approved charger when charging
from normal 240VAC outlet in Australia or New Zealand.
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MAN-MAXPRO
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LIFETIME WARRANTY
Lifetime Warranty
This instrument is warranted, to the original end-user
purchaser, against defects in materials and workmanship for
the life of the product, excluding the battery and pump, which
carry a two year limited warranty. During this period Lumidor
will repair or replace defective parts on an exchange basis,
F.O.B. the factory at Miramar, Florida. The end-user purchaser
will pay freight charges to and from Lumidor. The decision to
repair or replace parts shall be determined by Lumidor.
Sensor Warranties
(1) The oxygen sensor is guaranteed to operate
satisfactorily for two years from the date of sale (i.e. the
date of shipment) and will be replaced at no charge
within that period only if it will not provide a correct
reading after calibration by authorized service
personnel. Physical or chemical damage, resulting from
exposure to improper elements, is not covered.
(2) The combustible sensor is guaranteed to operate
satisfactorily for two years from date of sale (i.e. from
date of shipment). If It will not provide a correct reading
after calibration by authorized service personnel, it will
be replaced at no charge within that period. This
guarantee is void if it has been contaminated by some
unusual substance, including but not limited to, water
and/or other liquids, oily compounds, corrosives,
silicones, lead vapors, extremely high concentrations of
combustible gases, and various particulates which may
inhibit gas flow to the sensor element.
(3) The toxic sensors are guaranteed to operate
satisfactorily for two years (18 months for CL2, CLO2
and HCN sensors, 12 months for the NH3 sensor) from
the date of sale (i.e. the date of shipment). They will be
replaced at no charge within that period only if they will
not provide a correct reading after calibration by
authorized service personnel, and only if the sensor
membranes exhibit no physical or chemical damage
resulting from exposure to improper substances.
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MAN-MAXPRO
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LIFETIME WARRANTY
Conditions and Exclusions
To maintain this warranty, purchaser must perform
maintenance and calibration as prescribed in the instrument
operation manual, including prompt replacement or repair of
defective parts and such other necessary calibration,
maintenance and repair as may be required, according to the
use of the instrument, in the reasonable judgment of Lumidor.
Normal wear and tear, and parts damaged by abuse, misuse,
negligence or accidents are specifically excluded from the
warranty.
Purchaser acknowledges that, notwithstanding any contrary
term or provision in the purchaser's purchase order or
otherwise, the only warranty extended by Lumidor is the
express warranty contained herein. Purchaser further
acknowledges that there are no other warranties expressed or
implied, including without limitation, the warranty of
merchantability or fitness for a particular purpose; that there
are no warranties which extend beyond the description of the
face hereof; that no oral warranties, representations, or
guarantees of any kind have been made by Lumidor, its
distributors or the agents of either of them, that in any way alter
the terms of this warranty; that Lumidor and its distributors
shall in no event be liable for any consequential or incidental
damages, including but not limited to injury to the person or
property of the purchaser or others, and from other losses or
expenses incurred by the purchaser arising from the use,
operation, storage or maintenance of the product covered by
the warranty; that Lumidor's liability under this warranty is
restricted to repair or replacement of defective parts at
Lumidor sole option; and that Lumidor neither assumes nor
authorizes any other person to assume for it any other
warranty. The warranty shall be void if serial numbers affixed
to the products are removed, obliterated or defaced.
Lumidor, Miramar, Florida
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Table of Contents
TABLE OF CONTENTS
Section Page
1. Preparation for Use 10
1.1 Unpacking 10
1.2 Charging 10
2. General Description 12
3. Features 14
4. Operating Instructions 18
4.1 Turn-on 19
4.2 Standard Mode Sequence 19
4.3 Testing Sensors and Alarms 20
4.4 Continuous Monitoring 22
4.5 Remote Sampling (Pretesting) 22
4.6 Alarms 23
4.7 Clearing Memory 24
4.8 Turn-off 24
5. Calibration 25
5.1 Calibration Frequency 25
5.2 Calibration Procedure (when all calibration
gases are in a single canister) 26
5.3 Calibration Procedure (when not all calibration
gases are in a single canister) 27
5.4 Zeroing 29
6. Programming 30
6.1 Programming Options 30
6.2 Selecting LEL Gas Type 31
6.3 Setting Date Format 32
6.4 Setting Date/Time 33
6.5 Selecting Data Log Frequency 34
6.6 Auto-zeroing 34
6.7 Displaying Last Calibration Date 35
6.8 Selecting Latching/Non-latching Gas Alarms 35
6.9 Setting Calibration Gas Level 36
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Section Page
6.10 Setting High Alarm 37
6.11 Setting Low Alarm 37
6.12 Displaying Calibration Due Date 38
6.13 Choosing a Language 39
6.14 Selecting Immediate Alarm Mode/TWA Alarm
Mode 39
6.15 Restoring Factory Defaults 40
6.16 Calibration in Supervisory Mode 40
7. Data Logging 41
7.1 System Requirements 41
7.2 General Information 41
7.3 Program Installation 41
7.4 Uninstall Procedure 42
7.5 Starting the Program 42
7.6 Downloading Information from the MicroMax Pro 43
7.7 Displaying and Printing Data 45
7.7.1 Main Screen 45
7.7.2 Graph Screen 47
7.7.3 Current Calibration Records 49
7.7.4 Calibration History 51
7.7.5 Instrument Parameters 53
7.8 Editing Location 59
7.9 Editing Note 59
7.10 Uploading Information to the MicroMax Pro 59
7.11 Importing Files 60
7.12 Archiving Data 61
7.13 Recovering Data 62
7.14 Getting Help 63
7.14.1 Using MaxPro Log Help 63
7.14.2 Lumidor on the Web 63
7.14.3 Customer Support 63
7.14.4 MaxPro Log Version and Copyright 63
8. Maintenance 64
8.1 Battery Installation 64
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TABLE OF CONTENTS
Section Page
8.2 Alkaline Battery Pack Installation 64
8.3 NiMH Battery Pack Installation 65
8.4 NiMH Battery Pack – General Information 66
8.5 Sensor Replacement 66
8.6 Removing and Adding a Sensor 67
8.7 Cleaning 67
8.8 Pump Inlet Filter Replacement 67
8.9 Sampling Hose Maintenance 68
8.10 Storage 68
8.11 Sensor and Battery Disposal 68
9. TroubleShooting 70
9.1 Sensor Not Recognized (“XXX” Displayed) 70
9.2 “LEL FAIL” Message 70
9.3 Low Flow Alarm When Sampling Hose Attached 71
9.4 “Calibration Fail” Message 71
9.5 Instrument Will Not Turn On 71
9.6 Instrument is in Diffusion Mode but Pump
ComesOnWhenCalibrating 71
Appendix A Specifications 72
Appendix B Turn-on Sequence 84
Appendix C Mode Sequence, Standard Mode 87
Appendix D Mode Sequence, User Set-up Mode 88
Appendix E Alarm Modes 92
Appendix F Charging Screens 94
Appendix G Calibration Kits 95
Appendix H Optional Accessories 96
Appendix I Replacement Parts 97
Appendix J Calibrating with Multiple Canisters 99
Appendix K Calibration Gases 101
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1. PREPARATION FOR USE
1. PREPARATION FOR USE
1.1 UNPACKING
Check for these items:
• Packaging (retain for possible future use)
• Instrument with internal rechargeable battery pack
• Calibration certificate
• Standard accessories:
– AC battery charger
– Alkaline battery holder
– Dust filter
– 10-foot sampling hose with filter and water trap
– Rubber boot with belt clip and neck strap
– Instruction manual
1.2 CHARGING
CAUTION
Do not change or charge batteries in a hazardous location.
Do not try to turn on or otherwise operate this instrument
until it is fully charged.
Use only the MPRO-1 A.C.charger, the MPRO-2 220 volt
AC charger, or the MPRO-6 vehicular charger. Use of any
other charger may cause permanent instrument damage
and will void any warranties. The charge period is
dependent on the condition of the batteries, but should not
exceed about 4 hours for a completely depleted battery
pack. Partially depleted packs will be charged in a much
shorter period of time.
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1. PREPARATION FOR USE
To commence charging with the charger supplied with
AC power, connect the charger plug to the instrument port
(See Figure 1) and instrument display should read
“CHARGING BATTERY”. When charging is completed,
“CHARGE COMPLETE” is displayed. The instrument is now fully
charged and ready for use.
If charging is attempted without the rechargeable battery, or
with alkaline batteries, “CHECK BATTERY” is displayed.
Figure 1 Charging the MicroMax Pro
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2. GENERAL DESCRIPTION
2. GENERAL DESCRIPTION
The MicroMax Pro is a programmable instrument that can
monitor one, two, three, four, or with Combo-Tox sensor, up to
five gases. It combines proven sensor performance and
electronics in a small, lightweight, and easy to use monitor. It
consists of the monitor, NiMH rechargeable battery pack,
battery charger, alkaline battery holder, rubber boot with neck
strap and belt clip, dust filter, 10-foot sampling hose with filter
and water trap, calibration certificate and instruction manual.
Prior to shipment, the monitor was configured with default
alarms and other settings, tested and calibrated. After
charging, it is ready for use.
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2. GENERAL DESCRIPTION
Port
Inlet ON/OFF
Switch
Battery Compartment
Large Alarm LED Bar
MODE
Switch
Rear View
Figure 2 MicroMax Pro
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3. FEATURES
3. FEATURES
(1) Liquid Crystal Display
High contrast 4 lines by 16 character alphanumeric
display that indicates gas concentration of up to four
gases simultaneously.
(2) Display Backlighting
Automatic fiber-optic backlight provides display
readability in dim or dark environments.
(3) Automatic Toxic Sensor Recognition
Microprocessor automatically recognizes toxic sensors
when plugged in. Monitor displays corresponding gas,
sets gain, corrects alarm levels and initializes
temperature compensation.
(4) User Selectable Power Source
User has an option of powering instrument either with
the supplied NiMH rechargeable battery pack or with
four “AAA” alkaline cells (use only the cells that are
approved for use), mounted in the supplied battery
holder.
(5) User Friendly Interface
User friendly interface is intuitive for ease of use and
simplicity of operation.
(6) Extensive Programming Options
There are many programming options to customconfigure the instrument.
(7) Programmable Gas Alarms
High and low alarm levels, TWA mode for toxics,
latching or non-latching, are all user programmable.
(8) Fully Automatic Calibration
Fast, easy, accurate calibration that requires no user
adjustments or tools.
(9) Confidence Beep
User selectable confidence beep provides a visible flash
and audible beep about every 20 seconds to confirm
instrument operation.
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3. FEATURES
(10) Voice and Display Messaging
User may select English, Spanish, French or German
for voice and display messaging.
(11) Battery Gauge
This consists of B (for battery) and a maximum of 6 bars,
as illustrated. Six bars represent full charge, while fewer
bars indicate various stages of charge. When all bars
are depleted, the instrument will run for more than an
hour, after which time a low battery alarm is indicated by
two beeps every 15 seconds. Low battery alarm will
continue for at least half an hour, after which instrument
will beep continuously and shut down. If alkaline
batteries power instrument, battery condition is
indicated on the display, not by bars, but by battery
voltage. A fresh alkaline pack will read about 5.8 volts,
and low battery warning commence anywhere from 4.0
to 4.2 volts, model dependent, while shut-off occurs
between 3.68 and 3.95 volts, model dependent.
(12) Pump or Diffusion Mode of Operation
User may choose between pump and diffusion mode of
operation. If pump is selected, ‘P’ is displayed in the
lower left corner of display and all the benefits of internal
pump operation are available. In diffusion mode, ‘D’ is
displayed. If pump mode is selected and pump fails,
instrument automatically switches to diffusion mode for
continuous operation and protection.
B
(13) Real Time Clock
User adjustable real time clock provides continuous
time display. If daylight savings time is selected, the
time will be automatically updated.
(14) User Selectable Calibration Gas Concentration
This feature allows the user to select the desired
calibration gas concentration, within specified limits, for
all sensors except oxygen.
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3. FEATURES
(15) User Selectable LEL Conversion Factors
This feature allows instrument to accurately indicate the
LEL level for a wide range of hydrocarbons after
calibrating with the methane gas.
(16) Multiple Gas Alarm Indicators
Audible and visual alarms alert user of unsafe gas
levels.
(17) Low Flow Alarm
In pump mode, a steady audible alarm is accompanied
by a visual alarm and the display indicates “LOW FLOW”.
If alarm persists, instrument will indicate “PUMP FAIL”
and switch to diffusion mode of operation.
(18) RFI Resistant Design
High resistance to RFI (radio frequency interference)
minimizes false alarms.
(19) Charge Status Recognition
The instrument automatically shuts off if charger is
connected while monitor is on. This prevents the charger
from being used as a power source, which is not
intrinsically safe. Soon after charger is connected,
display indicates “CHARGING BATTERY”.
(20) Calibration Record
The date the instrument is last calibrated and the date
that the instrument is due for the next calibration can be
displayed on the start-up under “LAST CALIBRATED”
and “CALIBRATION DUE”.
(21) Peak, STEL and TWA
The MODE button enables display of peak reading
(highest toxic or combustible and lowest oxygen levels),
STEL (15-minute accumulated short-term exposure
level), and TWA (8-hour time weighted average) since
instrument was last turned on. The STEL and TWA will
be indicated only if “ALARM TYPE” is set to “TWA ON”.
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3. FEATURES
(22) Low Battery Warning
Low battery warning is indicated by dual beep every
15 seconds, 30 minutes prior to shutdown. With alkaline
batteries, low battery warning occurs between 4.0 and
4.2 volts.
(23) Data Logging
The MicroMax Pro is supplied with data logging
capabilities and all necessary hardware, cables and
software. There are 2400 data points for storage of up
to 200 hours of data.
(24) Approvals
Intrinsic Safety:
• MPRO (Standard MicroMax Pro)
UL Classified ‘Class I, Divisions 1 & 2, Groups A, B,
C & D, Class II, Groups E, F & G’
• MPRO-A (Australian version)
SAA Certified Ex ia s Zone 0 IIB T3
• MPRO-M (MSHA version)
MSHA approved for intrinsic safety (Methane-Air
mixtures only)
• China ‘PATTERN APPROVAL CERTIFICATE’
EMC Standards: (Third Party Certified)
• EN 50270:1999
• EN 55011:1998
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4. OPERATING INSTRUCTIONS
4. OPERATING INSTRUCTIONS
MICROMAX PRO
VER 5.0
ON
TESTING
PLEASE WAIT
ZEROING
PLEASE WAIT
OX LEL CO H2S
19.5 10 25 10
LOW ALARM
OX LEL CO H2S
23.5 20 35 20
HIGH ALARM
VOICE ON
READY
OX LEL CO H2S
20.9 0 0 0
P 11:52
B
Figure 3 Default Turn-on Sequence
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4. OPERATING INSTRUCTIONS
4.1 TURN-ON
After charging the instrument, or installing fresh alkaline
batteries, turn instrument on in clean air, by depressing the
ON/OFF button until a confirming beep is heard. Release the
ON/OFF button and instrument will display the firmware
version number and “ON” before cycling through its turn-on
sequence (See Figure 3 Default Turn-on Sequence). Then
the instrument goes through “TESTING” and “ZEROING”
cycles, displays low alarm levels and high alarm levels,
indicates “VOICE ON” and “READY” and goes into normal
operating mode. In normal operating mode, gas types and
levels occupy the top two lines, the third line is blank and
available for messaging, while on the fourth line is the letter “P”
or “D”, for pump or diffusion mode of operation respectively,
the current time in 24-hour format and the battery gauge. If
alkaline batteries power instrument, battery condition is
indicated by display of battery voltage. With alkaline batteries,
voltage should be about 5.8 volts with fresh batteries, with low
battery warning occurring at between 4.0 and 4.2 volts,
depending on sensor configuration.
4.2 STANDARD MODE SEQUENCE
OX LEL CO H2S
20.1 0 16 9
PEAK READING
LEL CO H2S
USER SETUP
NO
OX LEL CO H2S
20.9 0 0 0
P 08:49
Figure 4 Default Standard Mode Sequence
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MAN-MAXPRO
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4. OPERATING INSTRUCTIONS
Each standard mode option is available by depressing the
MODE button sequentially.
PEAK READING. The highest toxic and combustible gas
levels and the lowest oxygen levels. Depressing the ON/OFF
button while in this mode clears peak values.
USER SETUP. User setup mode allows pump, voice and
confidence beep to be turned on or off as desired. It is also
here that calibration is usually done, and memory cleared (See
Section 4.7 Clearing Memory). To enter the user setup mode,
keep depressing the MODE button until line 3 of display
indicates “USER SETUP”. Press the ON/OFF button to enter
user setup mode, to bypass each setting depress the MODE
button. To change any setting, depress the ON/OFF button.
For example, to change pump, voice, or confidence beep from
“ON” to “OFF” or vice versa, depress the ON/OFF button when
the appropriate menu item is displayed. To enter calibration
mode, depress the ON/OFF button when “CALIBRATE?” is
displayed(SeeSection5Calibration).
4.3 TESTING SENSORS AND ALARMS
It is recommended that proper alarm function be verified prior
to use by applying calibration or alarm check gas. Alarm check
gas (Test 1A) should be used only for instruments that contain
one or more of the 4 standard sensors (O2, LEL, CO or H2S).
For other configurations, use calibration gas with instrument in
normal operating mode. After testing, remember to clear the
peak values, or if “ALARM TYPE” is set to “TWA ON”, clear
memory. Test low flow alarm by placing finger over inlet when
in pump mode. If instrument does not go into low flow alarm
when inlet is blocked, instrument should be operated in
diffusion mode after entering the “USER SETUP” mode and
changing the pump status configuration to “PUMP OFF”.
Instrument should be serviced as soon as possible to fix the
problem.
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4. OPERATING INSTRUCTIONS
Instructions for using alarm check gas (part number Test 1A)
• Turnmonitoroninfreshairandallowittogointonormal
operating mode.
• Break shipping tab off canister.
• Attach blue balloon on to black disk on alarm check gas
hose. (See Figure 5)
• Insert red end of hose into hole in canister nozzle.
• Pinch hose (or place finger over the end of the hose) and
pulse trigger so that gas fills the balloon to its natural shape.
Do not over-inflate balloon.
• Insert other end of hose into air intake.
• All channels should be in alarm for a few seconds while gas
passes over sensors. Check display to confirm proper
operation of visual alarms for each gas. Confirm proper
operation of audible alarms.
• Remove hose from monitor and allow alarm check gas to
be purged from monitor with fresh air.
• Clear Peaks or, if “ALARM TYPE” is set to “TWA ON”, clear
memory (Please see Section 4.7 Clearing Memory).
CAUTION
Gas/Bump test should be performed in a well-ventilated
area.
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4. OPERATING INSTRUCTIONS
Figure 5 Alarm Check Gas
4.4 CONTINUOUS MONITORING
Lumidor recommends that the supplied dust filter (part number
16PFC) be attached at all times in pump mode if the
instrument is being used in a dusty environment. Keeping dust
out increases instrument life and lowers maintenance costs.
4.5 REMOTE SAMPLING (PRETESTING)
Remote areas and confined spaces may be sampled in pump
mode prior to entry by connecting the supplied 10-foot or
longer sampling hose to the inlet fitting. The sampling hose is
usually used for pretesting only. Continuous monitoring with
the sampling hose attached reduces the number of hours of
run time available.
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4. OPERATING INSTRUCTIONS
The following procedure is recommended:
• Turn instrument on and allow to enter normal operating
mode.
• Besureyouareinpumpmode.(“P”indicatedinline4of
display).
• Test alarm function with gas as indicated in Section 4.3
Testing Sensors and Alarms..
• Test low flow alarm as indicated in Section 4.3 Testing
Sensors and Alarms.
• Connect sampling hose to instrument. Place hose in area
to be sampled.
• Wait two minutes for full response.
• Take readings.
• Retrieve hose and disconnect from instrument.
Hose lengths up to 100 feet may be used for pretesting. Add
one second per foot to the two-minute wait for full response.
4.6 ALARMS
In the event of a gas alarm, evacuate the area immediately.
Investigate the cause of the alarm only when you are safely out
of the potentially hazardous area. Accessing the “Peak” mode
will display the gas and level that generated the alarm.
• A “warning” low gas alarm indicates a gas concentration
above the low alarm set point and is indicated by 3 beeps
from the horn, flashing LED, flashing gas range of the
sensor in alarm, and display of the word “WARNING.”
Voice will also say “WARNING” except for O2, in which
case it will say “DANGER.”
• A “danger” high gas alarm is indicative of a gas
concentration above the high alarm set point and is
indicated by 3 beeps from the horn, flashing LED, flashing
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4. OPERATING INSTRUCTIONS
gas range of the sensor in alarm, and display of the word
“DANGER.” Voice will also say “DANGER”.
• Low flow or pump fail alarm is indicated by a continuous
audible alarm, flashing LED, and the words “LOW FLOW”
or “PUMP FAIL” displayed.
• Low battery alarm is indicated by 2 short beeps from the
horn every 15 to 20 seconds, together with the words “LOW
BATTERY’ on the display. It first occurs approximately
30 minutes prior to battery depleted alarm and shutdown.
• Battery depleted alarm is indicated by 5 audible beeps,
display of “BATTERY DEPLETED” and shutdown.
4.7 CLEARING MEMORY
Memory is automatically cleared after each calibration.
To clear memory manually:
• Depress the MODE button repeatedly until “USER SETUP”
is displayed.
• Depress the ON/OFF button to enter the user setup mode.
• Depress the MODE button 4 times until “CLEAR
MEMORY” is displayed.
• Depress the ON/OFF button once to simultaneously clear
memory and return to normal operating mode.
4.8 TURN-OFF
To turn the MicroMax Pro off, depress and hold the ON/OFF
button, and instrument will beep 4 times. After the fourth beep,
release the button, and instrument will indicate “POWER OFF”
and automatically turn itself off.
If ON/OFF button is released during countdown, instrument
will resume normal operation.
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5. CALIBRATION
5. CALIBRATION
5.1 CALIBRATION FREQUENCY
It is important to verify accuracy on a regular basis to guard
against any unexpected loss of sensitivity due to mechanical
damage, immersion, aging, or exposure of the sensors to
poison (such as high concentration of combustible gas, tetraethel-lead, sulfides or silicone containing lubricants) present in
the atmosphere being monitored.
The safest possible course of action is to expose the sensors
to a known concentration test gas before each day’s use. This
“bump” test takes only a few seconds to accomplish. It is not
necessary to make a calibration adjustment unless readings
are off by more than 15% of the applied gas concentration. If
this procedure is followed, the calibration interval can be up to
90 days.
If your calibration procedures do not permit daily checking of
the sensors, Lumidor recommends the following procedure to
establish a safe and prudent check schedule. Initially, over a
period of a few days, check the response daily to be sure there
is nothing in your atmosphere that is poisoning the sensors. If
the instrument displays correct concentration levels after 2
weeks on this schedule, the calibration interval may be
extended to two weeks. If the instrument does not require
calibration, after 2 months on this schedule, the calibration
interval may be extended to 30 days.
WARNING
This does not preclude testing with gas on a regular basis.
Always observe your employer’s calibration and testing
schedules.
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5. CALIBRATION
5.2 CALIBRATION PROCEDURE (WHEN ALL
CALIBRATION GASES ARE IN A SINGLE
CANISTER)
CAUTION
Calibration should be carried out only in a clean air
environment, known to be free of contaminants.
Be sure the calibration gas is within the expiration date
indicated.
• Use MODE button to scroll through mode functions to
“USER SETUP”.
• Depress ON/OFF button to enter “USER SETUP”.
• Use MODE buttontoscrollto“CALIBRATE?”
• Depress ON/OFF button to enter the calibration mode.
• Instrument will count down to 0.
• Apply calibration gas when “APPLY GAS” is displayed.
(See Figure 6).
• Instrument will display “CALIBRATING” and count down to
0.
• When “CAL COMPLETE” is displayed, observe that all
sensors calibrated are displayed below “CAL
COMPLETE”. Any sensor not displayed is not
calibrated. Remove gas and turn off gas flow.
• Instrument will go into a “PURGING” countdown to 0.
• After purging, instrument automatically clears memory.
• This calibration process is now complete.
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5. CALIBRATION
Figure 6 Calibrating the MicroMax Pro
5.3 CALIBRATION PROCEDURE (WHEN NOT
ALL CALIBRATION GASES ARE IN A
SINGLE CANISTER)
CAUTION
Calibration should be carried out only in a clean air
environment, known to be free of contaminants.
Be sure the calibration gas is within the expiration date
indicated.
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5. CALIBRATION
CAUTION
Please refer to Appendices K and L for important
additional information.
• Use MODE button to scroll through mode functions to
“USER SETUP”.
• Depress ON/OFF button to enter “USER SETUP”.
• Use MODE buttontoscrollto“CALIBRATE?”.
• Depress ON/OFF button to enter the calibration mode.
• Instrument will count down to 0.
• Apply the first calibration gas, or gases, when “APPLY
GAS” is displayed. (See Figure 6)
• Instrument will display “CALIBRATING” and count down to
0.
• When “CAL COMPLETE” is displayed, observe which
sensors are calibrated and displayed below “CAL
COMPLETE”. Remove gas and turn off gas flow.
• Depress the ON/OFF switch and instrument will display
“APPLY GAS”.
• Apply the second calibration gas.
• Instrument will display “CALIBRATING” and count down to
0.
• When instrument displays “CAL COMPLETE”, observe
whether all sensors are calibrated and displayed below
“CAL COMPLETE”. Remove gas and turn off gas flow.
• If all sensors were displayed below “CAL COMPLETE”,
instrument is fully calibrated and will display “PURGING”,
count down to 0 and clear memory. The calibration process
is complete.
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MAN-MAXPRO
REV. B.0.
5. CALIBRATION
• If a third calibration gas needs to be applied, after
instrument displays “CAL COMPLETE”, depress the ON/
OFF button and follow the instructions on the display.
• When “CAL COMPLETE” is displayed, remove gas and
turn off gas flow.
• Instrument will purge itself while counting down to 0, and
clear memory.
• The calibration process is now complete.
5.4 ZEROING
CAUTION
Zeroing should be carried out only in a clean air
environment, known to be free of contaminants.
There are three ways to zero the instrument:
• Zeroing is done, automatically, each time the instrument is
calibrated.
• Zeroing is done, automatically, each time the instrument is
turned on if the “AUTO ZERO” feature is selected in the
supervisory mode. Please refer to Section 6.6 Auto-
zeroing.
• Zeroing may be done manually without doing a full
calibration by entering the calibration mode (please refer to
Section 5.2 Calibration Procedure (when all calibration
gases are in a single canister)) and, anytime while the
instrument is zeroing and counting down from 30 seconds
to 0, depress and hold down the MODE button for at least
3 seconds. Instrument will not immediately exit, but will
complete the zeroing cycle, count down to 0, and then exit
the calibration mode.
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MAN-MAXPRO
REV. B.0.
6. PROGRAMMING
6. PROGRAMMING
6.1 PROGRAMMING OPTIONS
Powerful programming options allow user to customize the
MicroMax Pro. Some options are available in the user set-up
mode (See Appendix D Mode Sequence, User Set-up Mode)
but the majority of these options are available only in
supervisory mode. ALL PROGRAMMING OPTIONS CAN
ALSO BE ACCOMPLISHED THROUGH THE MAXPRO LOG
SOFTWARE, USING THE UPLOAD FUNCTION. THIS IS BY
FAR THE MOST CONVENIENT AND EFFICIENT METHOD
AND IS STRONGLY RECOMMENDED. If a computer is not
available, programming may be accomplished manually in
supervisory mode, using the MODE and ON/OFF buttons. To
enter the supervisory mode, depress and hold the MODE
button for 5 seconds, during the “TESTING” phase of the startup sequence. The general structure of the supervisory mode
is to depress the MODE button to bypass an option, or use the
ON/OFF button to enter the option’s menu and make a
change. Where a menu has two options only for example,
“ON” or “OFF”, depressing the ON/OFF switch once
simultaneously accomplishes three functions; entering the
menu, changing the option and exiting the menu.
The following are all programmable:
• LEL gas type (CAUTION: This option is not operative
with the % by volume sensor.)
• Date format, date/time, daylight savings time
• Datalog frequency
• Auto-zero during start-up sequence
• Last calibration date displayed or not during start-up
sequence
• Latching or non-latching alarms
• Calibration gas level
• High alarm set points
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