Honeywell MultiPro User manual

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MULTIPRO PERSONAL PORTABLE GAS DETECTORS HAVE BEEN
DESIGNED FOR THE DETECTION AND MEASUREMENT OF
POTENTIALLY HAZARDOUS ATMOSPHERIC CONDITIONS
IN ORDER TO ASSURE THAT THE USER IS PROPERLY WARNED OF
POTENTIALLY DANGEROUS ATMOSPHERIC CONDITIONS, IT IS
ESSENTIAL THAT THE INSTRUCTIONS IN THIS REFERENCE
MANUAL BE READ, FULLY UNDERSTOOD, AND FOLLOWED.
MultiPro
Reference Manual
Part Number 13-278
Version 3
Copyright 2012
by
Honeywell Analytics, Inc.
Lincolnshire, Illinois 60069
All rights reserved.
No page or part of this operation manual may be reproduced in any form without written
permission of the copyright owner shown above.
Honeywell Analytics reserves the right to correct typographical errors.

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Table of Contents
CERTIFICATION INFORMATION 5
OPERATING TEMPERATURE 5
SIGNAL WORDS 5
WARNINGS AND CAUTIONS 5
1. DESCRIPTION 8
1.1 Methods of sampling 8
1.2 Multi-sensor capability 8
1.3 Calibration 8
1.4 Alarm logic 9
1.4.1 Atmospheric hazard alarms 9
1.4.2 Low battery alarms 9
1.4.3 Sensor over range alarms. 9
1.4.4 LEL response failure due to lack of O2 alarm 9
1.4.5 Security beep/flash 10
1.4.6 Latching peak alarms 10
1.4.7 Fault detection 10
1.5 Other electronic safeguards 10
1.5.1 Heartbeat 10
1.6 Sensors 10
1.7 Optional sample draw pump 10
1.7.1 Special precautions when using the MultiPro pump 11
1.8 Data storage 11
1.8.1 Black box data recorder 11
1.8.2 Event logger 11
1.9 MultiPro design components 11
1.10 MultiPro standard accessories 12
1.10.1 Alkaline MultiPro detectors 12
1.10.2 Li-Ion MultiPro detectors 12
1.11 MultiPro kits 12
1.11.1 MultiPro Confined Space Kits 12
1.11.2 MultiPro Value Packs 12
2. BASIC OPERATIONS 12
2.1Turning the MultiPro On 12
2.1.1 Start up with pump 14
2.2Operating Logic 14
2.3Turning the MultiPro Off 15
2.4 Alarms 15
2.4.1 Warning Alarms 15
2.4.2 Danger Alarms 15
2.4.3 STEL Alarms 15
2.4.4 TWA Alarms 15
2.4.5 Low battery alarms 15
2.4.6 Sensor over range alarms 16
2.4.7 LEL failure due to lack of oxygen alarm 16
2.5 PC connection via infrared port 16
2.6 Error Messages 17
2.7 Contact Cover 17
3. SAMPLING 17

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3.1 Manual sample draw kit 17
3.1.1 Manual sample draw kit usage 17
3.2 Motorized sample draw pump 18
3.2.1 Starting the motorized sample pump 18
3.2.2 Turning off the pump 19
3.2.3 Pump low flow alarm 19
3.3 Sample draw probe 19
4. CALIBRATION 19
4.1 Functional (Bump) testing 20
4.2 Fresh Air/Zero Calibration 21
4.2.1Fresh air/zero calibration failure 21
4.2.2 Forced fresh air / zero calibration 21
4.3 Span Calibration 22
4.3.1Span calibration failure: Toxic and LEL sensors 22
4.3.2Span calibration failure: Oxygen sensors 23
5. MAINTENANCE 23
5.1 Cleaning 23
5.2 Storage 23
5.3 Batteries 24
5.4 Replacing alkaline batteries 24
5.5 Maintaining Li-Ion battery packs 24
5.5.1Storage guidelines for the Li-Ion versions 24
5.5.2 Charging guidelines for Li-Ion battery 25
5.5.3Charging procedure for Li-Ion battery 25
5.5.4 Charging with the pump attached. 25
5.5.5 Battery troubleshooting 25
5.6 Sensor replacement 25
5.6.1 Sensor replacement (Not Duo-Tox) 25
5.7 Sample probe assembly 26
5.7.1 Changing sample probe filters 27
5.7.2 Changing sample probe tubes (wands) 27
5.8 MultiPro Pump Maintenance 27
5.8.1 Replacing pump filters 27
6. DIRECT PROGRAMMING 27
6.1 Entering the Advanced Menu 27
6.2 Set options 28
6.3 Set time 28
6.4 Set date 29
6.5 Set alarms 29
6.6 Set cal gas 29
6.7 Set cal due 29
6.8 Set bump test due 29
6.9 Setup accept 30
APPENDICES 31
Appendix A Toxic gas measurement – Warning, Danger, STEL and TWA alarms 31
1. Warning and Danger Alarms 31
2. Time Weighted Average (TWA): 31
3. Short Term Exposure Limits (STEL): 31
Appendix B Calibration Frequency Recommendation 33

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Appendix C MultiPro Sensor Information 33
Appendix D Toxic Sensor Cross-Sensitivity 33
Appendix E Basic Parts List 33
MultiPro Remote Sampling Accessories 33
MultiPro Sensors 33
MultiPro Charging & Datalogging Accessories 33
Appendix F Honeywell Analytics Standard Gas Detection Warranty 35

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Certification Information
UL Class I Division 1 Groups A,B,C,D Temp Code T4
UL Class II, Division 1 Groups E,F,G
UL Class III
CSA Class I, Division 1, Groups A,B,C,D Temp Code T4
(Per CSA C22.2 No. 152, only the combustible gas detection portion of this instrument
has been assessed for performance)
ATEX Certification:
II 2 G Ex ia d IIC T4
UL International DEMKO A/S 05 ATEX 0424116X
IECEx Certification:
Ex ia d IIC T4
IECEx UL 07.0003X
Operating Temperature
The MultiPro’s operating temperature range is printed on the label on
the back of the instrument. Use of Honeywell Analytics Gas Detectors outside of the
instrument’s specified operating temperature range may result in inaccurate and
potentially dangerous readings.
Signal Words
The following signal words, as defined by ANSI Z535.4-1998, are used in
the MultiPro Reference Manual.
indicates an imminently hazardous situation which, if
not avoided, will result in death or serious injury.
indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
indicates a potentially hazardous situation, which if not
avoided, may result in moderate or minor injury.
CAUTION used without the safety alert symbol indicates a potentially
hazardous situation which, if not avoided, may result in property damage.
Warnings and Cautions
1. The MultiPro personal, portable gas detector has been
designed for the detection of dangerous atmospheric conditions. An alarm
condition indicates the presence of a potentially life-threatening hazard and should
be taken very seriously.
2. In the event of an alarm condition it is important to follow
established procedures. The safest course of action is to immediately leave the
affected area, and to return only after further testing determines that the area is
once again safe for entry. Failure to immediately leave the area may result in
serious injury or death.
3. The MultiPro must be located in a non-hazardous location
whenever alkaline batteries are removed from the alkaline battery pack.
Removal of the alkaline batteries from the battery pack in a hazardous area may
impair intrinsic safety.

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4. Use only Duracell MN1500 or Ultra MX1500, Eveready Energizer
E91-LR6, Eveready EN91 batteries in the alkaline battery pack. Substitution of
batteries may impair intrinsic safety.
5. To reduce the risk of explosion, do not mix old or used
batteries with new batteries and do not mix batteries from different manufacturers.
6. Do not charge the MultiPro with any charger other than the
appropriate MultiPro charger. Standard versions of the MultiPro must be charged
with the UL/CSA-approved charger, which is part number 54-49-103-1. European
versions of the MultiPro must be charged with the ATEX-approved charger, which is
Honeywell Analytics part number 54-49-103-5.
7. The MultiPro must be located in a non-hazardous location
during the charging cycle. Charging the MultiPro in a hazardous location may
impair intrinsic safety.
8. MultiPro rechargeable battery packs are supplied with
Panasonic CGA103450 Lithium-Ion batteries. These batteries are not replaceable by
the user. The rechargeable pack must be obtained from Honeywell Analytics and
replaced as an assembly.
9. The accuracy of the MultiPro should be checked periodically
with known concentration calibration gas. Failure to check accuracy can lead to
inaccurate and potentially dangerous readings. (The Canadian Standards
Association (CSA) requires an accuracy check using known concentration
calibration gas prior to each day’s use.)
10. Fresh air/zero calibrations may only be performed in an
atmosphere that is known to contain 20.9% oxygen, 0.0% LEL and 0 PPM toxic gas.
11. The accuracy of the MultiPro should be checked immediately
following any known exposure to contaminants by testing with known concentration
test gas before further use. Failure to check accuracy can lead to inaccurate and
potentially dangerous readings.
12. The accuracy of the MultiPro should be checked immediately
following any physical shock. Failure to check accuracy can lead to inaccurate and
potentially dangerous readings.
13. A sensor that cannot be calibrated or is found to be out of
tolerance should be replaced immediately. An instrument that fails calibration may
not be used until testing with known concentration test gas determines that
accuracy has been restored, and the instrument is once again fit for use.
14. Do not reset the calibration gas concentration unless you are
using a calibration gas concentration that differs from the one that is normally
supplied by Honeywell Analytics for use in calibrating the MultiPro.
Customers are strongly urged to use only calibration materials when calibrating the
MultiPro. Use of non-standard calibration gas and/or calibration kit components can
lead to dangerously inaccurate readings and may void the standard Honeywell
Analytics warranty.
15. Use of non-standard calibration gas and/or calibration kit
components when calibrating the MultiPro can lead to inaccurate and potentially
dangerous readings and may void the standard Honeywell Analytics warranty.
Honeywell Analytics offers calibration kits and long-lasting cylinders of test gas
specifically developed for easy MultiPro calibration. Customers are strongly

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urged to use only Honeywell Analytics calibration materials when calibrating the
MultiPro.
16. Substitution of components may impair intrinsic safety.
17. For safety reasons this equipment must be operated and
serviced by qualified personnel only. Read and understand this reference manual
before operating or servicing the MultiPro.
18. A rapid up-scale reading followed by a declining or erratic
reading may indicate a hazardous combustible gas concentration that exceeds the
MultiPro’s zero to 100 percent LEL detection range.
19. The MultiPro is not designed for use in oxygen enriched
atmospheres.
20. Do not use the MultiPro pump for prolonged periods in an
atmosphere containing a concentration of solvent or fuel that may be greater than 50%
LEL.

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1. Description
The MultiPro is
a multi-sensor
gas detector
that can be
configured to
meet a wide
variety of user
requirements.
This chapter
provides an
overview of many of the features of the
MultiPro. More detailed descriptions of the
specific features of the MultiPro are contained
in the subsequent chapters of this manual.
1.1 Methods of sampling
The MultiPro may be
used in either
diffusion or sample-
draw mode. In
either mode, the gas
sample must reach
the sensors for the
instrument to
register a gas
reading. The
sensors are located at the bottom of the
instrument. There are three distinct sensor
ports that allow the sample to reach the
individual sensors.
The sensor ports must be
kept free of obstruction. Blocked sensor
ports can lead to inaccurate and
potentially dangerous readings.
In diffusion mode, the atmosphere being
measured reaches the sensors by diffusing
through the vents at the bottom of the
instrument. Normal air movements are
enough to carry the sample to the sensors.
The sensors react quickly to changes in the
concentrations of the gases being measured.
Diffusion-style operation monitors only the
atmosphere that immediately surrounds the
detector.
The MultiPro can also be used to sample
remote locations with the hand-aspirated
sample-draw kit or with the motorized,
continuous sample draw pump (both available
separately). During remote sampling, the gas
sample is drawn into the sensor compartment
through the probe assembly and a length of
tubing. Remote sampling operations only
monitor the atmosphere at the end of the
sample draw probe.
Use of the hand-aspirated sample draw
kits is covered in section 3.1.
Use of the motorized sample draw pump is
covered in section 3.2.
A detailed description of the MultiPro
probe assembly is given in section 5.7.
1.2 Multi-sensor capability
The MultiPro can be configured to
simultaneously monitor oxygen, carbon
monoxide, hydrogen sulfide and combustible
gases and vapors. All sensors are
replaceable in the field. Each of the MultiPro’s
sensor channels is configured for a specific
type of sensor.
Note: It is necessary to verify the accuracy of
the MultiPro by calibration with known
concentration test gas whenever a change is
made to the sensors installed in the
instrument.
Calibration procedures are discussed in detail
in Chapter 4.
The MultiPro uses electrochemical toxic gas
sensors that have been designed to minimize
the effects of common interfering gases.
These sensors provide accurate, dependable
readings for toxic gases commonly
encountered during confined space entry and
other industrial applications.
Different measurement units are used
depending on the gas being measured.
Type of Hazard Measurement unit
Oxygen (O2) Percentage by
volume
Combustible gas Percentage of lower
explosive limit
(%LEL)
Carbon Monoxide,
Hydrogen Sulfide
Parts per million
(PPM)
Table 1.2. Units of Measurement.
1.3 Calibration
The MultiPro detector features one-button
fresh air and span calibration.
The accuracy of the
MultiPro should be checked periodically
with known concentration calibration gas.
Failure to check accuracy can lead to
inaccurate and potentially dangerous
readings. (The Canadian Standards
Association (CSA) requires an accuracy
check using known concentration
calibration gas prior to each day’s use.)

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Calibration procedures are discussed in
detail in Chapter 4.
Recommended calibration frequency is
discussed in Appendix B.
1.4 Alarm logic
MultiPro gas alarms can be adjusted with
BioTrak Software through a PC with an IrDA
port or directly with the MODE button (see
Chapter 6 for direct programming
instructions). Alarms may be set anywhere
within the nominal range of the specific sensor
type. When an alarm set point is exceeded a
loud audible alarm sounds, and the bright red
LED alarm lights flash.
1.4.1 Atmospheric hazard alarms
The combustible gas alarm is activated when
the percent LEL (Lower Explosive Limit) gas
concentration exceeds any pre-set alarm
level.
Two oxygen alarm set points have been
provided; a danger alarm for low
concentrations associated with oxygen
deficiency and a warning alarm for high
concentrations associated with oxygen
enrichment.
Four alarm set points have been provided for
each toxic gas sensor: Warning, Danger,
STEL (Short Term Exposure Limit) and TWA
(Time Weighted Average).
S
E
N
S
O
R
W
A
R
N
I
N
G
D
A
N
G
E
R
S
T
E
L
T
W
A
CO 35 100 100 35
H2S 10 20 15 10
Default Toxic Sensor Alarm Levels
Appendix A discusses alarm levels and
factory default alarm settings.
MultiPro portable gas
detectors have been designed for the
detection of deficiencies of oxygen,
accumulations of flammable gases and
vapors, and accumulations of specific
toxic gases. An alarm condition indicating
the presence of one or more of these
potentially life-threatening hazards should
be taken very seriously.
In the event of an alarm
condition it is important to follow
established procedures. The safest course
of action is to immediately leave the
affected area, and to return only after
further testing determines that the area is
once again safe for entry. Failure to
immediately leave the area may result in
serious injury or death.
A rapid up-scale reading
followed by a declining or erratic reading
may indicate a hazardous combustible gas
concentration that exceeds the MultiPro’s
zero to 100 percent LEL detection range.
1.4.2 Low battery alarms
The MultiPro may be equipped with either a
rechargeable Lithium Ion (Li-Ion) or an
alkaline battery pack. The MultiPro includes
multi-staged low battery alarms to let the user
know that the battery is running low.
For detailed information concerning the
low battery alarms, see section 2.4.5.
Use only Duracell MN1500
or Ultra MX1500, Eveready Energizer E91-
LR6, Eveready EN91 batteries.
Substitution of batteries may impair
intrinsic safety.
1.4.3 Sensor over range alarms.
The MultiPro will go into alarm if a sensor is
exposed to a concentration of gas that
exceeds its established range. In the case of
an LEL reading that exceeds 100% LEL, the
LEL channel will be automatically disabled by
the instrument and the instrument will remain
in constant alarm until it is turned off, brought
to an area that is known to be safe, and then
turned back on. The display will show “OL” in
place of the sensor reading for any channel
that has gone into over range alarm.
See section 2.4.5 for further details on
sensor over range alarms.
A sensor range chart is provided in
Appendix C.
In the event of an LEL
overrange alarm the MultiPro must be
turned off, brought to an area that is
known to be safe and then turned on again
to reset the alarm.
1.4.4 LEL response failure due to lack of
O2alarm
The MultiPro features automatic warning
against LEL sensor response failure due to
lack of oxygen. See section 2.4.7 for details.

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1.4.5 Security beep/flash
The MultiPro includes a security beep function
that is designed to notify the user that the
instrument is powered up and running. Once
enabled the MultiPro will emit a short audible
beep and give a short flash on the LED at a
user-defined interval. The security beep/flash
function may be enabled and the interval may
be changed with BioTrak software or directly
with the MODE button (see Chapter 6 for
direct programming instructions).
1.4.6 Latching peak alarms
The MultiPro’s alarms are self-resetting unless
the alarm latch is enabled. With the MultiPro’s
alarm latch enabled, the audible and visible
alarms will continue to sound after the
atmospheric hazard has cleared. Press the
MODE button to reset the alarms. If the alarm
latch is disabled and the alarm condition is no
longer present, the instrument will
automatically return to normal operation, and
the visible and audible alarms cease without
further input from the user.
1.4.7 Fault detection
MultiPro software includes a number of
additional alarms designed to ensure the
proper operation of the instrument. When the
MultiPro detects that an electronic fault or
failure condition has occurred, the proper
audible and visible alarms are activated and
an explanatory message or message code is
displayed.
The MultiPro is designed to
detect potentially life threatening atmospheric
conditions. Any alarm condition should be
taken seriously. The safest course of action is
to immediately leave the affected area, and
return only after further testing determines that
the area is once again safe for entry.
1.5 Other electronic safeguards
Each time the detector is turned on, the
MultiPro automatically tests the LED alarm
light, audible alarm, internal memory and
pump status (if so equipped). The battery is
monitored continuously for proper voltage.
The MultiPro also monitors the connection of
sensors that are currently installed. The
detection of any electronic faults causes the
activation of the audible and visible alarms
and causes the display of the appropriate
explanatory message.
1.5.1 Heartbeat
At the center of the display is a heart symbol
that will blink every few seconds to show that
the instrument is functioning normally.
1.6 Sensors
The MultiPro can be configured to
simultaneously monitor oxygen, carbon
monoxide, hydrogen sulfide and combustible
gases and vapors. The sensor configuration
of the MultiPro may be specified at the time of
purchase, or changed in the field by
appropriately trained personnel.
Note: A CF Value may be required when
replacing the 54-49-24 CO/H2S sensor.
Instructions are included with the
replacement sensor.
Replacement sensor part numbers and
sensor ranges are given in Appendix B.
Sensor cross-sensitivity figures are given
in Appendix C.
A sensor that cannot be
calibrated or is found to be out of tolerance
must be replaced immediately. An instrument
that fails calibration may not be used until
testing with known concentration test gas
determines that accuracy has been restored,
and the instrument is once again fit for use.
Calibration procedures are discussed in detail
in Chapter 4.
1.7 Optional sample draw pump
A motorized sample-draw pump is available
for the MultiPro for situations requiring
continuous "hands free" remote monitoring.
Use only part number 54-
49-102 sample draw pump with the
UL/CSA-approved version of the MultiPro.
Use only part number 54-49-102-5 sample
draw pump with the ATEX-approved
version of the MultiPro.
The pump contains a
pressure sensor that
detects restrictions in
airflow caused by water
or other obstructions
being drawn into the
unit and immediately
acts to turn the pump
off in order to protect
the sensors, pump, and
other MultiPro components from damage.
Pump status is continuously monitored by the
MultiPro microprocessor. When the pump is

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active and functioning properly, “PUMP” is
displayed near the center of the display. Low
flow or other pump fault conditions activate
audible and visible alarms and cause the
display of the appropriate explanatory
message.
1.7.1 Special precautions when using the
MultiPro pump
The rubber material used in the MultiPro
diaphragm pump is susceptible to temporary
compromise by exposure to high levels of
flammable fuel and solvent vapors. If the
MultiPro is being used to sample atmospheres
that exceed 50% LEL, test the pump frequently
to ensure that pump function has not been
compromised.
To test the pump, block the end of the sampling
line (probe) inlet with a finger. The pump should
quickly go into alarm, which indicates proper
function. If the pump fails to go into alarm while
the inlet is blocked, it is not working properly;
and the MultiPro may not be providing an
accurate reading. If the pump test fails, the
safest course of action is to immediately leave
the affected area and to return only after further
testing with known, functional detection
equipment confirms that the area is once again
safe for entry.
Do not use the pump to
sample for prolonged periods in
conditions where the concentration of
solvent or fuel vapors may be greater than
50% LEL.
1.8 Data storage
The MultiPro includes a black box data
recorder and an event logger as standard
features.
1.8.1 Black box data recorder
A black box data recorder is a standard
feature in the MultiPro. The “black box” is
continually in operation whether the user is
aware of it or not. The black box stores
important information such as gas readings,
turn-on times, turn-off times, temperatures,
battery conditions, the most recent calibration
date and settings, types of sensors currently
installed, sensor serial numbers, warranty
expiration and service due dates, and current
alarm settings.
There is a finite amount of memory storage
available in the black box data recorder.
Once the memory is “full”, the MultiPro will
begin to write the new data over the oldest
data. The black box data recorder will store
approximately 41 hours of data in one-minute
increments before it begins to write new data
over the oldest data. In this way, the newest
data is always conserved.
To extract the information from the black box
data recorder, the MultiPro must be returned
to Honeywell Analytics. Once the data is
downloaded from the instrument, a report will
be generated. The instrument and the report
will then be returned to the user. Simply call
Honeywell Analytics Instrument Service
Department to obtain a return authorization
number. There is no charge for the
downloading service, but the user is
responsible for any freight charges incurred.
The “black box” data recorder in the MultiPro
can be upgraded to a fully enabled datalogger
at any time. All that is required is the
activation code that corresponds to the serial
number of the MultiPro.
1.8.2 Event logger
The event logger in the MultiPro stores data
associated with alarm conditions. Each
(alarm) event includes the following data for
each of the installed sensors: Sensor type,
Max reading, average reading, start time, end
time and duration of the event. The MultiPro
stores the 20 most recent events. Once 20
events have been stored, the MultiPro will
begin to systematically overwrite the data from
the oldest event in memory with data from
new events. One event may be a combination
of different alarms occurring simultaneously or
in immediate succession. The event logger
may be downloaded using Honeywell
Analytics BioTrak software. The PC must be
equipped with IrDA to provide a connection.
1.9 MultiPro design components
1. Case: The instrument is enclosed in a
solid PC (polycarbonate) case with TPE
(rubber) overmold.
2. Front face: The front face of the
instrument houses the MODE button, LCD
(liquid crystal display), LED alarm light,
IrDA port and audible alarm.
3. Display: A liquid crystal display (LCD)
shows readings, messages, and other
information.
4. Alarm light: A top and front-mounted LED
(light emitting diode) alarm lights provides
a visual indication of alarm state. The
light emits a bright red light when the
instrument is in alarm.

12
5. Infrared Port: The infrared port is located
next to the MODE button on the front face
of the instrument. The infrared port is
used for communications between the
MultiPro and a PC.
6. On / Off "MODE" button: The large black
push-button on the front of the instrument
is called the "MODE" button. The MODE
button is used to turn the MultiPro on and
off as well as to control most other
operations, including the automatic
calibration adjustment.
7. Sensor compartment cover: The
sensors are located in a vented
compartment at the bottom of the
instrument.
8. Audible alarm port: A cylindrical port
extending through the front of the
instrument just above the display houses
the loud audible alarm. The waterproof
audible alarm seats directly to the rubber
inner-liner to protect the instrument
against leakage or exposure to liquids.
9. Battery pack: Two types of
interchangeable battery packs
(rechargeable Lithium Ion (Li-Ion) and
disposable alkaline) are available for use.
Li-Ion battery packs may be recharged
while the pack is installed in the
instrument, or removed from the
instrument for separate recharging.
10. Battery charger connector: A water-
resistant connector at the bottom of the
case assembly is used to connect the
MultiPro to the “drop in” style charger.
11. Back surface: A sturdy clip allows the
user to wear the MultiPro on a belt or
other article of clothing.
1.10 MultiPro standard accessories
Standard accessories included with every
MultiPro include calibration adapter, additional
tubing for use during calibration, reference
manual and quick reference card.
The optional manual sample draw kit consists
of a sample draw / calibration adapter,
squeeze bulb, standard sample probe,
replacement sample probe filters, and ten feet
of tubing. The sample probe itself is also
available separately.
Standard configurations of the MultiPro are
delivered in a cardboard box with cardboard
inserts.
1.10.1 Alkaline MultiPro detectors
If the MultiPro has been purchased as an
alkaline instrument, the standard accessories
include a set of 3 disposable AA alkaline
batteries.
1.10.2 Li-Ion MultiPro detectors
If the MultiPro has been purchased as a Li-Ion
rechargeable instrument, the standard
accessories include Li-Ion battery pack and a
slip-in MultiPro charger.
1.11 MultiPro kits
MultiPro detectors may also be purchased as
part of a complete kit that includes calibration
gas, fixed-flow regulator and a hard-shell
carrying case.
1.11.1 MultiPro Confined Space Kits
In addition to the standard accessories listed
above, Confined Space Kits also include
calibration fittings, fixed-flow regulator with
pressure gauge, and appropriate large
cylinder of calibration gas in a foam-lined,
waterproof hard-shell carrying case.
1.11.2 MultiPro Value Packs
MultiPro Value Packs include an alkaline
MultiPro, all standard accessories, calibration
fittings, small cylinder(s) of calibration gas,
and fixed flow regulator in a foam-lined non-
waterproof hard-shell carrying case.
2. Basic Operations
The MultiPro is a true one-button gas
detector. The MODE button is located on the
front of the instrument and controls all field-
level operations including the following
Turning the MultiPro on and off
Turning on the backlight
Viewing the MAX, STEL and TWA reading
screens
Initiating the calibration sequence
2.1 Turning the MultiPro On
To turn the MultiPro on, press and hold the
MODE button for one second. The first
screen shown will be the test screen for the
LCD. All sections should be darkened. The
test screen will be followed by a screen
showing the instrument firmware version. “dL”
will appear in the upper right for instruments
with a fully enabled datalogger.
→

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The sensor screen and instrument serial
number screen will then be shown.
→
If the MultiPro is equipped with a fully enabled
datalogger, the following screen will be
shown. The time figure in the upper right
corner indicates the sampling interval in
minutes and seconds. Instruments without a
fully enabled datalogger will show display “not
a datalog”
or
In the MultiPro, the standard one-minute
sampling interval will result in the ability to
store a minimum of 41 hours of readings
before the oldest data is overwritten by new
data. The sampling interval may be modified
using BioTrak Software.
The time will then be shown followed by the
date:
→
The instrument will display “Self Test” as it
performs operational checks. During the self-
test, the MultiPro tests for installed sensors,
performs a system memory check and tests to
see if a motorized pump is attached to the
instrument. If a pump is detected, it will be
briefly activated during the self-test. For
details on start up procedures for MultiPro
instruments equipped with a pump see section
2.1.1 below.
For instructions on changing the time and
date with the MODE button, see section 6
below.
The instrument temperature will then be
shown.
→
The warning alarm levels screen will then be
shown followed by the danger, STEL and
TWA alarm levels screens.
→
→
For more information concerning STEL
and TWA alarms, see sections 2.4.3 and
2.4.4.
After the alarm screens, the calibration due
screen will be shown with the number of days
until the next calibration. The instrument will
then proceed to the current gas readings
screen. If calibration is due, “Cal due now”
will be shown followed by “needs cal”. The
user will need to acknowledge the message
by pressing the MODE button. Once the
MODE button is pressed, the MultiPro will
continue to the current gas readings screen
and the appropriate calibration due icon will
blink every 5 seconds to remind the use that
the instrument is past due for calibration.
or
If the Bump Test Interval setting is enabled,
the bump interval screen will be shown. The
bump due status will be shown in days or
hours.
Note: The Bump Test Interval and bump
test due reminder are used exclusively
with the MultiPro IQ Express Dock.

14
or
Following the calibration status screens, the
MultiPro will proceed to the current gas
readings screen.
2.1.1 Start up with pump
MultiPro instruments that are equipped with a
built-in motorized sample draw pump will have
a slightly longer start up sequence. After the
calibration status screens, the MultiPro will
prompt you to test the pump for leaks.
Note: The sample probe assembly must
be attached when the pump is started.
→
Block the sampling inlet by placing a finger
over the end of the sample probe assembly.
Once the MultiPro
recognizes that the test is
passed, it will instruct you to
remove the blockage.
Once the blockage is
removed, the MultiPro will
proceed to the current gas
readings screen.
If the instrument is unable to detect the
vacuum resulting from the pump blockage, the
test will fail and you will be directed to remove
the pump.
↔
For information concerning proper attachment
of the sample probe assembly to pump-
equipped MultiPro instruments, see section
3.1.
2.2 Operating Logic
Once the MultiPro has
completed the start up
sequence, the current gas
readings screen will be
shown. At the center of the
display is a heartbeat that
will “beat” every few seconds to show that the
instrument is functioning normally.
If the MultiPro is due for fresh air/zero
calibration, the “0-Cal” will flash on the LCD
once every 5 seconds as a reminder. If the
MultiPro is due for span calibration, the
calibration bottle icon will be
shown. Both “0-Cal” and the
calibration bottle icon will be
shown if the instrument is
due for both span and fresh
air calibration.
If a sensor is not detected in
one of the sensor channels during start up,
the reading in the designated sensor channel
will appear blank. If a complete sensor failure
occurs while the instrument is turned off, the
instrument may operate as if the sensor is not
present in the instrument. In the example at
right, the LEL sensor has
not been detected and a
reading is not shown. The
MultiPro™ only detects
those substances that
appear in the current gas
readings screen during the
current operating session.
: Always verify that all
sensors present in the instrument are
shown on the current gas readings screen
whenever the MultiProTM is turned on.
Failure to verify sensor presence prior to
use in a hazardous location may result in
serious injury or death.
If the MultiPro recognizes that the pump is
attached, “Pump” will be displayed in the
current gas readings screen
The battery icon gives an indication of how
much power is left in the battery. The
illustration below shows the stages of the
battery from full to empty (top to bottom).
Battery charge greater than
80%
Battery charge between 50%
and 80%
Battery charge between 25%
and 50%
Battery charge less than
25%
To turn on the backlight press the MODE
button once. To view the MAX readings
screen, press the MODE button a second

15
time. Press the MODE button a third time to
view the Short Term Exposure Limit (STEL)
readings. Press the MODE button again to
view the Time Weighted Averages (TWA) for
the operating session.
Note: The MultiPro must be in continuous
operation for at least 15 minutes before it
will be able to calculate the TWA values.
For the first 15 minutes of any operating
session, the screen will show the length of
time that the instrument has been
operating instead of the TWA values.
2.3 Turning the MultiPro Off
To turn the MultiPro off, press and hold the
MODE button until the display reads “Release
Button”. Once the MODE button is released
“Please wait” will be shown briefly and the
display will go blank.
→
2.4 Alarms
The MultiPro is configured with a series of
alarms that are designed to warn the user of
dangerous conditions.
The MultiPro is designed
to detect potentially life threatening
atmospheric conditions. Any alarm
condition should be taken seriously. The
safest course of action is to immediately
leave the affected area, and return only
after further testing determines that the
area is once again safe for entry.
2.4.1 Warning Alarms
A Warning Alarm indicates
a dangerous atmospheric
condition that has not yet
risen to a level necessary
to initiate the danger
alarms. Warning alarm
levels are shown during
the start up sequence.
Warning alarms can be temporarily silenced
by pressing the MODE button if this option is
enabled with BioTrak.
2.4.2 Danger Alarms
A Danger Alarm indicates
a significantly hazardous
condition. As is the case
with the warning alarms,
the danger alarm levels are shown in the start
up sequence.
2.4.3 STEL Alarms
STEL (Short Term
Exposure Limit) alarm
values represent the
average concentration of
instrument readings for the
target gas for the most
recently completed 15 minutes of operation.
The default STEL alarm level for the MultiPro
CO sensor is 100PPM. The default STEL
alarm value for the MultiPro H2S sensor is
15PPM.
2.4.4 TWA Alarms
TWA (Time Weighted
Average) values are
calculated by taking the
sum of exposure to a
particular toxic gas in the
current operating session
in terms of parts-per-million-hours and dividing
by an eight-hour period. The default TWA
alarm level for the MultiPro CO sensor is
35PPM. The default TWA alarm value for the
MultiPro H2S sensor is 10PPM.
2.4.5 Low battery alarms
When battery voltage is
reduced to approximately
3.55 volts, the battery icon
on the LCD will appear empty, which means
that a low battery condition exists.
If the battery icon is empty, leave the area
immediately. If the MultiPro is equipped with
an alkaline battery pack, proceed to an area
that is known to be safe (containing fresh air
with no contaminants and no combustible
gases) and change the batteries. If the
MultiPro is equipped with a Li-Ion battery
pack, proceed to an area that is known to be
safe and recharge the battery pack.
Once the battery voltage reaches 3.45 volts
the MultiPro will go into a 30-minute battery
alarm. The warning alarm will sound and the
screen will display “Lo-Bat”, along with the
warning and alarm icons. The user will need
to acknowledge the low battery condition by
pressing the MODE button before the
instrument will resume monitoring. Once the
MODE button is pressed, the empty battery
cell and the caution icon will flash. After 15
minutes the warning will sound again to
indicate that there are now only 15 minutes of
battery life left. Once the second 15-minute

16
period has elapsed or once the battery voltage
reaches 3.2 volts, the instrument will go into
alarm for the last time, notify the user that it is
shutting itself down and proceed to turn itself
off.
Alkaline battery replacement and Li-Ion
battery charging instructions are
contained in section 5.4 and 5.5.
The MultiPro must be
located in a non-hazardous location
during the charging cycle. Charging the
MultiPro in a hazardous location may
impair intrinsic safety.
The MultiPro must be
located in a non-hazardous location
whenever alkaline batteries are removed
from the alkaline battery pack. Removal
of the alkaline batteries from the battery
pack in a hazardous area may impair
intrinsic safety.
CAUTION Always turn the MultiPro off
prior to removing the battery pack.
Removal of the battery pack with the
instrument turned on may cause
corruption of stored data in the MultiPro.
2.4.6 Sensor over range alarms
The MultiPro will go into alarm if a sensor is
exposed to a concentration of gas that
exceeds its established range. In the case of
an LEL reading that exceeds 100% LEL, the
LEL channel will be automatically disabled by
the instrument and the alarm will latch (remain
on) until the instrument is turned off. The
MultiPro must be turned off, brought to an
area that is known to be safe (containing
20.9% oxygen, 0% LEL and 0 PPM toxic
gases), and then turned back on. The display
will show “---“ and “OL” alternately in place of
the sensor reading for any channel that has
gone into over range alarm.
→
A combustible sensor
overrange alarm indicates a potentially
explosive atmosphere. Failure to leave the
area immediately may result in serious
injury or death!
In the event of an LEL
overrange alarm the MultiPro must be
turned off, brought to an area that is
known to be safe (containing 20.9%
oxygen, 0% LEL and 0 PPM toxic gases),
and then turned on again to reset the
alarm.
2.4.7 LEL failure due to lack of oxygen
alarm
The LEL sensor in the MultiPro requires a
certain amount of oxygen to function properly.
When oxygen levels fall below 11% by
volume, the MultiPro will show “---“ in place of
the LEL reading and display “O2”, “too” and
“Lo” in successive screens in the location
typically used for the LEL reading.
→
→
2.5 PC connection via infrared port
MultiPro instruments that
are equipped with a fully
enabled datalogger can be
downloaded to a PC using
BioTrak or IQ software
through the MultiPro’s
infrared port. For the
location of the infrared port, see the illustration
below.
1. With the MultiPro turned off, hold the
MODE button down until four beeps are
heard. Depending on the software
version, this will normally take between 10
and 20 seconds. “PC Connect” will be
shown once the infrared port has been
activated.
2. Align the infrared port on the MultiPro with
the PC’s infrared port to complete the
connection.

17
Note: For further instructions concerning the
download procedure for the MultiPro, see the
BioTrak or IQ System manual as appropriate.
2.6 Error Messages
The MultiPro will display error messages
when it detects certain problems during
operation.
MULTIPRO Error definitions
Error Display Number
Unit Memory Bad 003
O2 Memory Bad 004
LEL Memory Bad 005
CO Memory Bad 006
H2S Memory Bad 007
DataloggerMemory
Bad
008
Invalid Memory Type 009
No Sensors Installed 010
Bad Temp Sensor 012
Bad Vibrating Alarm 014
If the MultiPro displays an error message,
contact Honeywell Analytics for further
instructions.
2.7 Contact Cover
ATEX and IECEx versions of the MultiPro are
shipped with a clear red plastic contact cover
that should be installed over the charging and
pump contacts when the MultiPro is in use
without the pump.
Note: This applies to European and
Australian versions only. The contact
cover is not required to meet the UL and
CSA standards.
3. Sampling
The MultiPro may be used in either diffusion
or sample-draw mode. In either mode, the
gas sample must reach the sensors for the
instrument to register a gas reading. The
sensors are
located at the
bottom of the
instrument.
The sensor ports
must be kept free
of obstruction.
Blocked sensor
ports can lead to
inaccurate and
potentially dangerous readings.
In diffusion mode, the atmosphere being
measured reaches the sensors by diffusing
through vents in the bottom of the instrument.
Normal air movements are enough to carry
the sample to the sensors. The sensors react
quickly to changes in the concentrations of the
gases being measured. Diffusion-style
operation monitors only the atmosphere that
immediately surrounds the detector.
The MultiPro can also be used to sample
remote locations with either the hand-
aspirated sample-draw kit, or with the
motorized sample draw pump. During remote
sampling, the gas sample is drawn into the
sensor compartment through the probe
assembly and a length of tubing.
3.1 Manual sample draw kit
The manual sample draw kit is comprised of a
sample draw probe, 2 sections of tubing, a
squeeze bulb and an adapter that is used to
connect the sample draw accessories system
to the MultiPro.
Note: The maximum amount of tubing that
can be used with the manual sample draw
kit is 50 feet.
3.1.1 Manual sample draw kit usage
To use the manual sample draw kit:
1. Connect the short section of hose that
comes off the squeeze bulb to the sample
draw adapter.
2. Test the seals in
the sample draw
system. First cover
the end of the

18
sample draw probe with a finger, then
squeeze the aspirator bulb. If there are no
leaks in the sample draw kit components,
the bulb should stay deflated for a few
seconds.
3. Secure the calibration adapter (with the
sample draw assembly attached) to the
MultiPro by inserting the tab and
tightening the knurled screw into the brass
nut at the bottom of the adapter.
4. Insert the end of the sample probe into the
location to be sampled.
5. Squeeze the aspirator bulb to draw the
sample from the remote location to the
sensor compartment.
To ensure accurate readings while
using the manual sample draw kit, it is
necessary to squeeze the bulb once for
every one foot of sampling hose for the
sample to first reach the sensors, and
then to continue squeezing the bulb
once per second for an additional 45
seconds or until readings stabilize. As
an example, if 10 feet of tubing is used,
it will be necessary to draw the sample
in by squeezing the bulb continuously
for a minimum of 55 seconds or until
readings stabilize.
6. Note the gas measurement readings.
CAUTION: Hand-aspirated remote
sampling only provides continuous gas
readings for the area in which the probe is
located while the bulb is being
continuously squeezed. Each time a
reading is desired, it is necessary to
squeeze the bulb a sufficient number of
times to bring a fresh sample to the sensor
compartment.
3.2 Motorized sample draw pump
Use only part number 54-
49-102 sample draw pump with the
MultiPro.
A motorized sample-draw pump is available
for the MultiPro for situations requiring
continuous "hands free" remote monitoring.
Use of the motorized sample draw pump
allows the MultiPro to continuously monitor
remote locations. The pump is powered by
the MultiPro battery. When the pump is
attached to the instrument, “PUMP” will be
shown on the display in the current gas
readings screen.
Note: The maximum amount of tubing that
can be used with the motorized sample
draw pump is 50 feet.
To ensure accurate readings while using
the continuous sample pump, it is
necessary to allow the pump to draw the
sample for one second for every one foot
of sampling hose plus an additional 45
seconds or until readings stabilize. For
example, with 10’ of tubing, it will be
necessary to allow a minimum of 55
seconds for the sample to be drawn into
the sensor chamber and for the readings
to stabilize.
MultiPro instruments are
designed to automatically
recognize the pump
whenever it is attached to
the instrument. If the
pump is attached when
the MultiPro is turned off,
the instrument will automatically initiate the
pump start up sequence when the instrument
is turned on. If the pump is attached while the
instrument is running, the MultiPro will
automatically initiate the pump test sequence
before returning to the current gas readings
screen.
3.2.1 Starting the motorized sample
pump
First attach the
probe and tubing
to the pump,
then secure the
pump (with the
sample draw
assembly
attached) to the
MultiPro by
inserting the tab
and tightening the knurled screw on the pump
into the instrument casing.
Note: The sample probe assembly must
be attached to the pump when the pump is
attached to the instrument.
Once the pump is recognized, the pump test
sequence will be initiated automatically.
→
Block the sampling inlet by placing a finger
over the end of the sample probe assembly.

19
Once the blockage is detected, the MultiPro
will indicate that the test has been passed and
instruct you to remove the blockage. Once
the blockage is removed, it will proceed to the
current gas readings screen.
→
If the instrument is unable to detect the
vacuum resulting from the pump blockage
within 30 seconds, the test will fail, the
instrument will go into alarm and you will be
directed to remove the pump.
↔
Remove the pump and press the MODE
button to resume diffusion operation.
3.2.2 Turning off the pump
To turn off the pump, simply remove the pump
from the instrument.
3.2.3 Pump low flow alarm
The MultiPro contains a pressure sensor that
continuously monitors for restrictions in airflow
caused by water or other fluids being drawn
into the unit and immediately acts to turn the
pump off in order to protect the sensors,
pump, and other MultiPro components from
damage.
CAUTION: Never perform remote sampling
with the MultiPro without the sample probe
assembly. The sample probe handle
contains replaceable filters designed to
block moisture and remove particulate
contaminants. If the pump is operated
without the probe assembly in place,
contaminants may cause damage to the
pump, sensors and internal components of
the MultiPro
When the pump is active and functioning
properly, “PUMP” is displayed near the center
of the LCD display. Low flow or other pump
fault conditions activate audible and visible
alarms and cause the display of the
appropriate explanatory message.
The pressure sensor in the sample draw
pump is designed to detect pressure changes
while the sample-draw probe is being held in a
vertical position. If the probe is held
horizontally or at a low angle while inserted
into a fluid, a pressure drop sufficient to cause
the pump to shut down may not be generated,
and water could be drawn into the pump
assembly causing damage to the pump,
sensors and internal components of the
MultiPro.
CAUTION: Insertion of the sample draw
tube into a fluid horizontally or at a low
angle may lead to water ingress and may
cause damage to the sensors and internal
components of the MultiPro.
If the MultiPro determines that a significant
pressure change has occurred, it will go into
alarm and notify the user that there is a
blockage of the pump. The display will
alternate between the following two screens.
↔
Remove the blockage and press the MODE
button to acknowledge the alarm and resume
sampling.
3.3 Sample draw probe
The MultiPro’s sample draw probe is the
standard probe assembly from Honeywell
Analytics. The sample probe handle contains
moisture barrier and particulate filters
designed to remove contaminants that might
otherwise harm the instrument.
Particulate contaminants are removed by
means of a cellulose filter. The hydrophobic
filter includes a Teflonbarrier which blocks
the flow of moisture as well as any remaining
particulate contaminants.
Sample probe filters should be replaced
whenever visibly discolored due to
contamination.
See section 5.7.1 for a probe diagram and
a list of available sample probe filter
replacement kits.
4. Calibration
The accuracy of the MultiPro should be
verified on a regular basis*. Verification can
be as simple as performing a bump test,
which is described below in section 4.1.