Ventis MX4 with Pump

Ventis MX4 with Pump
Multi-gas Monitor
Product Manual
Set-up
Operation
Service
Part Number: 17152357-1
Version 11
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Ventis™ MX4 Product Manual
Table of Contents
COPYRIGHT NOTICE ................................................................................................................................................... 3
WARNINGS AND CAUTIONARY STATEMENTS ........................................................................................................ 3
General ................................................................................................................................................................... 3
Personnel ............................................................................................................................................................... 3
Hazardous Conditions, Poisons, and Contaminants .............................................................................................. 3
General Usage ....................................................................................................................................................... 4
Agency-issued Conditions of Use and Warnings .................................................................................................... 4
Recommended Practices ....................................................................................................................................... 5
VENTIS MX4™ RESOURCES....................................................................................................................................... 6
VENTIS MX4 CAPABILITIES ........................................................................................................................................ 6
UNPACKING THE MONITOR ....................................................................................................................................... 7
Contents.................................................................................................................................................................. 7
Reporting a Problem .............................................................................................................................................. 7
MONITOR OVERVIEW ................................................................................................................................................. 8
Hardware Features and Functions .......................................................................................................................... 8
Display Screen ........................................................................................................................................................ 9
Alarms ................................................................................................................................................................... 11
MONITOR SET-UP ...................................................................................................................................................... 13
Battery Properties and Monitor Compatibility ....................................................................................................... 13
Charging the Lithium-ion Battery Packs ............................................................................................................... 14
Instruction ...................................................................................................................................................... 14
Power-on and –off................................................................................................................................................. 15
Configuration......................................................................................................................................................... 16
Introduction .................................................................................................................................................... 16
Instructions .................................................................................................................................................... 16
Configuration Process.................................................................................................................................... 17
MONITOR USE AND SERVICE .................................................................................................................................. 24
Zero, Calibration, and Bump Testing .................................................................................................................... 24
Procedures .................................................................................................................................................... 24
Recommendations ......................................................................................................................................... 25
General Information .............................................................................................................................................. 25
Instructions ................................................................................................................................................... 26
Recommended Practices for In-field Air Sampling ............................................................................................... 32
Cleaning ............................................................................................................................................................... 32
Service .................................................................................................................................................................. 33
Battery Packs ................................................................................................................................................. 33
Monitor Conversion ....................................................................................................................................... 36
Sensor, Sensor Water Barrier, LCD, and Vibrating Motor Replacement........................................................ 38
Pump Module ................................................................................................................................................. 40
Ventis MX4 Three-Dimensional View Diagrams ............................................................................................ 41
PRODUCTS, SPECIFICATIONS, AND CERTIFICATIONS ........................................................................................ 44
Ventis MX4 Accessories and Parts ....................................................................................................................... 44
Monitor Specifications ........................................................................................................................................... 46
Operating Conditions ............................................................................................................................................ 46
Storage Conditions ............................................................................................................................................... 47
Sensor Specifications ........................................................................................................................................... 47
Toxic Gas Sensor Cross-Sensitivity Table ............................................................................................................ 47
LEL and LEL Correlation Factors for Combustible Gases .................................................................................... 48
Certifications ......................................................................................................................................................... 49
WARRANTY ................................................................................................................................................................ 50
Limitation of Liability .............................................................................................................................................. 50
INDUSTRIAL SCIENTIFIC CORPORATION GLOBAL LOCATIONS..................................................... BACK COVER
© 2014Industrial Scientific Corporation
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Ventis™ MX4 Product Manual
►Copyright
Notice
Ventis MX4™ and Ventis™ are trademarks of Industrial Scientific Corporation.
All trademarks and registered trademarks are the property of their respective owners.
These help materials or any part thereof may not, without the written consent of Industrial Scientific Corporation, be
copied, reprinted, or reproduced in any material form including but not limited to photocopying, transcribing,
transmitting, or storing it in any medium or translating it into any language, in any form or by any means, be it digitally,
electronic, mechanical, xerographic, optical, magnetic, or otherwise.
The information contained in this document is proprietary and confidential and all copyright, trademarks, trade names,
patents, and other intellectual property rights in the documentation are the exclusive property of Industrial Scientific
Corporation unless otherwise specified. The information (including but not limited to data, drawings, specification,
documentation, software listings, source or object code) shall not at any time be disclosed directly or indirectly to any
third party without prior written consent.
The information contained herein is believed to be accurate and reliable. Industrial Scientific Corporation accepts no
responsibility for its use by any means or in any way whatsoever. Industrial Scientific Corporation shall not be liable
for any expenses, costs by damage that may result from the use of the information contained within this document.
Although every effort is made to ensure accuracy, the specifications of this product and the content herein are subject
to change without notice.
►Warnings and Cautionary Statements
General
IMPORTANT
Failure to perform certain procedures or note certain conditions may impair the performance of this
product. For maximum safety and optimal performance, please read and understand the Ventis MX4
Product Manual available online at the Ventis MX4 Resource Center at
www.indsci.com/ VentisMX4resources.
Personnel
CAUTION: For safety reasons, this equipment must be operated and serviced by qualified personnel only.
Read and understand the product manual completely before operating or servicing.
Hazardous Conditions, Poisons, and Contaminants
WARNING: Servicing the unit, replacing or charging battery packs, or using the communications port must only
be done in an area known to be nonhazardous. Not for use in oxygen-enriched atmospheres.
WARNING: Power-off the monitor before servicing the unit or replacing the battery.
WARNING: Substitution of components may impair intrinsic safety and may cause an unsafe condition.
CAUTION: High off-scale readings may indicate explosive gas concentration(s).
CAUTION: Any rapid up-scale reading followed by a declining or erratic reading may indicate gas
concentration(s) beyond the upper scale limit which may be hazardous.
Silicone compound vapors or other known contaminants may affect the combustible gas sensor and cause
readings of combustible gas to be lower than actual gas concentrations. If the monitor has been used in an
area where silicone vapors were present, always calibrate the monitor before next use to ensure accurate
measurements.
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Ventis™ MX4 Product Manual
General Usage
Oxygen-deficient atmospheres may cause combustible gas readings to be lower than actual concentrations.
Oxygen-enriched atmospheres may cause combustible gas readings to be higher than actual concentrations.
Sudden changes in atmospheric pressure may cause temporary fluctuations in the oxygen reading.
Verify the calibration of the combustible gas sensor after any incident where the combustible gas content has
caused the monitor to display an over-range condition.
Sensor openings, water barriers, and the pump inlet must be kept clean. Obstruction of the sensor openings or
pump inlet and/or contamination of the water barriers may cause readings to be lower than actual gas
concentrations.
To avoid the potential of liquid being pulled into the sample tubing and pump assembly, it is recommended that
Industrial Scientific filter (P/N 17027152) be used on the sample tubing when drawing samples using the
aspirated monitor.
WARNING: INSERT THE ALKALINE BATTERIES WITH THE CORRECT POSITIVE “+” AND NEGATIVE “-“
ORIENTATION. WARNING: The Ventis MX4 is only approved for use with AAA battery types Energizer EN92
and Duracell MN2400. Do NOT mix battery types.
WARNING: The use of leather cases can produce inaccurate readings with diffusion (non-aspirated) gas
detection instruments for specific monitoring applications. Leather cases should be used ONLY as carrying
cases, and NOT for continuous monitoring, with diffusion instruments configured to measure gases other than
O2, CO, CO2, H2S, and combustible gases (LEL/CH4).
Agency-issued Conditions of Use and Warnings
Ensure all part-use restrictions (e.g., battery) meet any agency-mandated conditions of use.
Ensure all instrument-configurable settings (e.g., always-on setting) meet any agency-mandated conditions of
use. When using instrument-compatible Industrial Scientific docking stations, maintain mandated settings
through the software (e.g., iNet Control or Accessory Software) or by manually configuring the instrument
settings after docking.
The Ventis MX4 is CSA certified according to the Canadian Electrical Code for use in Class I, Division 1 and
Class I, Zone 1 Hazardous Locations within an ambient temperature range of Tamb: -20°C to +50°C. CSA has
assessed only the %LEL combustible gas detection portion of this instrument for performance according to
CSA Standard C22.2 No. 152. This is applicable only when the monitor is used in the diffusion mode and has
been calibrated to 50% LEL CH4, and when the monitor is used in the aspirated mode with an extended range
lithium-ion battery and has been calibrated to 50% LEL CH4.
CAUTION: CSA C22.2 No. 152 requires before each day’s usage, sensitivity must be tested on a known
concentration of pentane or methane equivalent to 25% or 50% of full scale concentration. Accuracy must be
within -0% to +20% of actual concentration. Accuracy may be corrected by referring to the zero/calibration
section of the Product Manual.
The equipment complies with the standards IEC 60079-29-1 and EN 60079-29-1 for methane, propane, and
hexane with the following exception: as for the methane (mine) detector, the battery run time was verified to be
seven (7) hours rather than the eight (8) hours recommended by the standards, respectively.
MED-certified instruments may be used only when configured and maintained to disallow power-off when the
unit is in alarm.
The Mine Safety and Health Administration (MSHA) has approved the Ventis MX4 as a Permissible Multi-Gas
Monitor with the following warnings:

MSHA approved for use with either the P/N 17134453-X2, 3.7 volt, lithium-ion battery or P/N 17148313-2,
3.7 volt, lithium-ion extended battery pack assembly only. The battery pack is not user-replaceable. The
monitor battery and the lithium battery on the main PCB are technician replaceable only. Charge battery
pack with an ISC battery charger designed for use with this monitor in fresh air locations only.
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Ventis™ MX4 Product Manual



The monitor is to be calibrated according to the procedures in the instruction manual only.
The aspirated version of the Ventis MX4 is only approved for use with the extended battery pack.
The monitor must display methane in the percent-by-volume mode (0-5%) for compliance determinations
required by 30 CFR Part 75, subpart D.
SANS 1515-certified units may be used only as follows:

Diffusion applications

Configured and maintained to disallow power-off when the unit is in alarm

The Methane alarms are set as follows: low alarm = 1%vol and high alarm =1.4%vol

With approved Lithium-ion battery packs (see Ventis MX4 Accessories and Parts in this manual).
Recommended Practices
Industrial Scientific Corporation recommends the monitor be fully charged (when equipped with a rechargeable
battery pack), configured, and calibrated before first time use. If the lithium-ion battery is deeply discharged, it
can take up to an hour for the instrument display to indicate that the battery is charging. Monitors used
infrequently should be fully charged every four months.
No part of the unit should be covered by any garment, part of a garment, or other item that would restrict the
flow of air to the sensors or impair the operator's access to the audible, visual, or vibration alarms.
Industrial Scientific Corporation recommends a full monitor calibration be performed monthly (at a minimum),
using a certified concentration(s) of Industrial Scientific calibration gas(es) to help ensure monitor accuracy.
Industrial Scientific Corporation recommends the monitor be zeroed and bump tested before each use with a
certified concentration(s) of Industrial Scientific calibration gas(es).
Battery contacts are exposed on battery packs when they are removed from the monitor. Do not touch the
battery contacts and do not stack battery packs on top of one another.
When reassembling the instrument or installing a battery pack, maintain ingress protection by tightening each
fastener to its stated torque value (see the “Ventis MX4 Monitor three-Dimensional Diagram” and its key in this
manual).
Contact your service representative immediately if you suspect that the Ventis MX4 is working abnormally.
Industrial Scientific recommends the “2 & 2 Sampling Rule” when sampling with a motorized pump and tubing,
one should allow for 2 minutes plus 2 seconds per foot of tubing used, prior to noting the monitor readings.
This allows time for the gas to reach the instrument and for the sensors to adequately react to any gases
present. Industrial Scientific recommends that clear urethane tubing, part number 17065970, be used with the
pumped versions of the Ventis MX4 when sampling for the following gases: Nitrogen Dioxide (NO2) and Sulfur
Dioxide (SO2).
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Ventis™ MX4 Product Manual
►Ventis
MX4 Resources
The Ventis MX4 Product Manual is the primary resource, within a full suite of learning tools, developed for the monitor
user. Its step-by-step “walk through” format covers everything from unpacking to set-up, operation, and service. All
Ventis MX4 users should read and understand the Product Manual prior to unpacking or using the monitor.
A companion to the manual, the Ventis MX4 Reference Guide ships with the monitor. It serves to announce all
warnings and cautionary statements relevant to general monitor use. The guide also features process charts that
provide an overview of four fundamental tasks: operation/start-up, configuration, calibration, and functional “bump”
testing. These charts are tools for the user who is both familiar with the manual and proficient in the performance of
the given task.
Ventis MX4 product-specific resources are part of the organization’s broader training line-up, featuring online training
modules and face-to-face classroom programs for technicians, operators, first responders, trainers, and distributors.
Courses combine theory with hands-on learning, and can be tailored to the customer’s unique requirements and gas
monitoring applications.
The organization’s customer and technical support call centers provide product and order information, how-to product
assistance, and guidance for in-depth technical applications. Its service centers offer comprehensive factory repair
and maintenance services.
Industrial Scientific Corporation provides a full suite of resources to aid customers in the competent and safe use of
its products and services. With 19 manufacturing, support, and service centers and hundreds of distributors
worldwide, Industrial Scientific serves the globe’s gas detection needs.
►Ventis MX4 Capabilities
The Ventis MX4 is a portable multi-gas monitor. Offered as a diffusion monitor, it detects and measures gas(es)
present in open space. To enable monitor use within confined space locations, the Ventis MX4 is also offered as an
aspirated monitor. A pump module and battery accessories enable the conversion of either monitor for dedicated use
in either confined or open spaces.
Based on the customer’s monitor order, up to four sensors are factory installed enabling the monitor to continuously
and simultaneously detect and measure the presence of up to four specific gases.
Sensor
Category
Number available per Gases Monitored
monitor
Oxygen
1
O2 (Oxygen) only
Combustible
1
Monitor can be configured for sensor to measure ONE of the following:

LEL (Pentane)

LEL (Methane)

CH4 (0%-5%)
Toxic
2
Each sensor detects and measures only ONE of the following:

CO (Carbon Monoxide)

CO/H2 Low (Carbon Monoxide with low H2 interference)

H2S (Hydrogen Sulfide)

NO2 (Nitrogen Dioxide)

SO2 (Sulfur Dioxide)
Equipped with a multi-mode (audible, visual, and vibration) and multi-level alarm system, the Ventis MX4 monitor is
capable of notifying its user of potentially hazardous gas concentrations.
The monitor performs continuous datalogging at 10 second intervals. It can store approximately 90 days of data for a
four-sensor configuration. Its date- and time-stamped event log records and stores data for the following: 60 alarm
events, 30 error events, and 250 manually performed calibrations or bump tests. The memory, when full, overwrites
the oldest data as the newest readings and events are logged.
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Ventis™ MX4 Product Manual
The Ventis MX4 monitor functions as an independent device to monitor the environment for hazardous gas
concentrations. It is also part of the Ventis System including products that charge, calibrate, bump test, datalink,
protect, and otherwise enable or enhance use of the monitor and its data. (Datalink refers to capabilities that enable
access to the download and use of monitor datalogs, reports, and other information.) For a complete list of the Ventis
MX4 system of products, please refer to the manual section, Products and Parts.
►Unpacking the Monitor
CONTENTS
The monitor box contains the following items including, when ordered, those marked optional. Each item ordered
should be accounted for in the unpacking process.
Quantity
Item
Notes
1 as ordered
Ventis MX4 Portable Multi-gas
Monitor
The monitor type is indicated on the box label.
Options:

Ventis MX4 Diffusion

Ventis MX4 Aspirated

Ventis MX4 Aspirated with Conversion Kit
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Ventis MX4 Reference Guide
A companion to the Ventis MX4 Product Manual.
1 installed as ordered
Battery Pack
One of three battery types is factory installed as
indicated on the box label. Options:

Rechargeable Lithium-ion

Rechargeable Extended Range Lithium-ion

Alkaline
1 as ordered
Charger
Universal power cord. AC charger products include
interchangeable plugs (US, UK, EU, and AUS).
0 or 1
Calibration Cup
Diffusion – 1 included
Aspirated – 0 included
1
Calibration and Bump Test
Tubing
Diffusion – two feet of clear tubing
0 or 1
In-field Sampling Tubing
Diffusion – 0 included
Aspirated – Ten feet of black tubing
1
Final Inspection & Test Report
Contains the following factory set* information:

Monitor Set-up Date

Monitor Part Number (P/N)

Monitor Serial Number (S/N)

For Each Sensor*:

P/N

S/N

Type

Location

Alarm level values

Span gas values

Span reserve values
*Some factory set sensor values subject to user changes.
1
Warranty Card
--
REPORTING A PROBLEM
After unpacking, if any item is missing or appears to have been damaged, contact a local distributor of Industrial
Scientific products or Industrial Scientific Corporation (for contact information, please see the manual’s last page).
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Ventis™ MX4 Product Manual
►Monitor Overview
HARDWARE FEATURES AND FUNCTIONS
The monitor’s case top (front of monitor) has two main sections. As shown below, the upper section contains the
sensor ports. The lower section houses the user interface features, a LCD display screen and two buttons. Each
feature’s general functions are noted below. As shown, the diffusion and aspirated monitors differ with respect to the
location of the air intake mechanism and visual alarm indicators.
The instrument may be used in any orientation when clipped to the user or when used with a compatible carrying
case. Normal instrument orientation for measuring gas concentration is hand held with sensors and display facing the
operator.
Number
Feature
Functions
1
Visual alarm indicator
Signals an alarm or warning; frequency varies by alarm level. Also used as a
confidence indicator.
2
Pump inlet (aspirated)
Sensor ports (diffusion)
Air intake; calibration and bump test gas intake.
3
LCD display
User interface; backlight flashes when monitor is in system, high, or low alarm
states.
4
Audible alarm ports
On when monitor is in system, high, or low alarm states; frequency and tone vary
by alarm level. Also used for warnings and as confidence indicator.
5
On/Off/Mode button
Used to power-on and power-off. Also used to bypass a process/step or advance
to a next screen in both gas monitoring and configuration modes. Sets values in
configuration mode.
6
Enter button
Used to begin a process/step in a process. Edits values in configuration mode.
7
IrDA interface
Indicates infrared light data exchange in-progress.
8
Charging contacts
Battery charging.
© 2014Industrial Scientific Corporation
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Ventis™ MX4 Product Manual
DISPLAY SCREEN
The Ventis MX4 Boot-up Screen, as shown below, serves to introduce all icons and the alpha-numeric items (e.g.,
8.8.8) that can appear on the display when the monitor is in use, docked, or charging. Each display item is stationary,
communicates unique information, and appears only when relevant to the task being performed.
A sample Gas Monitoring Screen is also shown below, next to the boot-up screen. This illustrates how the icons and
the alpha-numeric characters work together to communicate several points of information to the monitor user.
Boot-Up Screen
All possible screen images.
Gas Monitoring Screen
Sample screen in gas monitoring mode.
NOTE: Display screens featured throughout this manual include the “pump” icon.
Similar in appearance to a fan, it indicates an aspirated monitor is in use. For a
diffusion monitor, the pump icon does not appear on the display.
It is helpful to view the boot-up screen in sections. The top and bottom rows each contain icons. The main function of
the middle section, in gas monitoring mode, is to communicate gas concentration readings. Definitions for all icons,
gas name abbreviations, gas measurement units, and other indicators are provided below. Where applicable, display
variations are noted.
Top Row Icons
Definition
Status: indicates no monitor or sensor faults.
Warning: indicates monitor or sensor fault.
Zero: communicates zero status (e.g., zero results, zero in-progress, etc.).
Gas Cylinder: communicates calibration related information (calibration due, calibration apply
gas, etc.).
Clock: indicates a process is in-progress.
Calendar: communicates overdue warnings for service items (calibration, bump testing, etc.).
Alarm: indicates an alarm causing condition.
Low level audio alarm is on.
High level audio alarm is on.
Peak: displayed when peak detection values are viewed.
Alpha-numeric
display values
Definition
Carbon Monoxide (CO)
Methane (CH4)
Sulfur Dioxide (SO2)
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Ventis™ MX4 Product Manual
Lower Explosive Limit. Display variations:
“LEL” (English)
“LIE” (French)
“UEG” (German)
Oxygen (O2)
Nitrogen Dioxide (NO2)
Hydrogen Sulfide (H2S)
COL
CO H2/Low
Percentage Volume: O2 and CH4 measurement unit
Percentage unit for combustible gases; display variations:
“% LEL” (English)
“% LIE” (French)
“% UEG” (German)
Parts Per Million: H2S, CO, SO2 and NO2 measurement unit.
Over-range: for any sensor in over-range, indicates the measured gas concentration is greater
than the measurement range of the sensor. Display variations:
“Or” (English and German)
“Sup” (French)
Negative Over-range: for any sensor in negative over-range indicates the measured gas
concentration is less than the negative measurement range of the sensor. Display variations:
“-Or” (English and German)
“InF” (French)
Bottom Row Icons
Definition
Battery level indicator; display variations:
0 black bars = low battery warning
1 black bar < 33% charge remaining
2 black bars = 34% - 66% charge remaining
3 black bars = 67% – 100% charge remaining
Security Code: indicates code is set or to be entered.
Pump: shown anytime an aspirated monitor is in use.
Indicates IrDA communication is in-progress.
Short Term Exposure Limit: communicates STEL values. Display variations:
“STEL” ( English and German)
“VLE” (French)
Time Weighted Average: communicates TWA values. Display variations:
“TWA” (English and German)
“VME” (French)
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ALARMS
NOTICE
 All monitor alarms and warnings should be taken seriously and responded to as stated in company safety
standards.
 Once initiated, an alarm will remain on while the alarm condition is present. For gas-related alarms, once the
detected gas concentration changes, the alarm indicators will change to reflect any new condition such as
low-alarm gas, high-alarm gas, over-range gas, or no gas alarm.
 When the latch alarm feature is enabled and the monitor goes into alarm, it will remain in alarm until the
alarm condition no longer exists and the monitor user presses the ENTER button for one second. This
applies only to gas-related alarms.
It is practical for the monitor user to be aware of the possible alarms prior to monitor set-up and use. The Ventis MX4
has four alarm and warning levels. A “system level” alarm generates the highest frequency tone and highest level
visual and vibration signals. It is used to indicate such events as a pump or sensor failure. The “high” or “low” level
audio alarms, in combination with visual and vibration indicators, turn on when gas concentration readings are overrange, high, or low. The lowest level indicator is a warning with beep patterns to indicate service needs (e.g., low
battery or calibration due). The beep is also used as a confidence indicator when enabled.
Alarm types and their alarm generating conditions are described below.
Display
Description
An over-range condition occurs when the gas
concentration value sensed is above the
sensor’s measuring range.
After any over-range alarm, the monitor
should be calibrated.
Over-range Alarm Screen
The “Or” message indicates which sensor(s) is reading an overrange condition(s). All other sensors show their current gas
concentration readings on a numeric display (left) or gas names on
a text display (right). The high level alarms turn on and the alarm
icon displays.
NOTES: The O2 and toxic sensor values normally
reset when the gas sensed reaches an acceptable
range.
If the LEL reads over-range, the alarm latches and
the LEL sensor is automatically turned off. Press
the enter button to turn on the LEL sensor. This will
turn off the alarm indicators. After a warm-up period
of approximately 30 seconds, an LEL reading will
display. If the new reading is an over-range or other
alarm condition, the alarm indicators will turn on.
A negative over-range condition occurs when
the gas concentration value sensed is less
than the sensor’s measuring range.
After any negative over-range alarm, the
monitor should be calibrated.
Negative Over-range Alarm Screen
The “-Or” message indicates which sensor is reading a negative
over-range condition. All other sensors display their current gas
concentration readings*. The high level alarms turn on and the
alarm icon displays.
A high alarm condition occurs when the
concentration of gas sensed reaches a level
greater than the monitor’s high alarm value
setting for a sensor(s).
High Alarm Screen
A flashing gas concentration value* indicates which sensor(s)
reading(s) is the cause for alarm. The high level alarms turn on and
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Ventis™ MX4 Product Manual
the up arrow icon displays.
A low alarm condition occurs when the
concentration of gas sensed reaches the
monitor’s low alarm value setting for a
sensor(s).
Low Alarm Screen
A flashing gas concentration value* indicates which sensor(s)
reading(s) is the cause for alarm. The low level alarms turn on and
the down arrow icon displays.
A TWA alarm occurs when the calculated time
weighted average reaches the monitor’s
hazardous value for the set time frame.
TWA Alarm Screen
A flashing gas concentration value* indicates which sensor(s)
reading(s) is the cause for alarm. The low level alarms turn on and
the TWA icon flashes.
The STEL alarm occurs when the short term
exposure value exceeds the acceptable limit.
STEL Alarm Screen
A flashing gas concentration value* indicates which sensor(s)
reading(s) is the cause for alarm. The low level alarms turn on and
the STEL icon flashes.
Alarm occurs when the monitor registers no
sensors installed.
No Sensor Installed Screen
The system level alarms turn on and the error icon displays.
Alarm occurs when any installed sensor’s
data-related operations fail and the sensor is
not operational.
Sensor Data Fail Screen
A flashing “F” indicates which sensor is the cause for alarm. The
audio alarm turns on and the error icon displays.
Error codes 4XX to 5XX (404 shown here)
indicate the monitor has detected a
malfunction. The unit is not operational and
and should be examined by a qualified
technician or reported to Industrial Scientific
for service or repair information.
Critical Error Screen
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Ventis™ MX4 Product Manual
Alarm occurs when, if attached, the pump is
not operating correctly. While in alarm, every
ten seconds the monitor attempts to restart
the pump. If unsuccessful, the monitor
remains in alarm.
Pump Fault Alarm
The system level alarms turn on and the error icon displays.
Note: The nominal flow rate is >200 cc/m (.2
LPM). A pump fault alarm will occur when
the flow is less than 200 cc/m +0, -25%.
Alarm occurs when the monitor’s battery
reaches a low level of charge or is nearing its
end of life.
Low Battery Warning Screen
A beep sounds every 30 seconds and the empty battery icon
flashes.
Alarm occurs when one or more sensors are
due for a bump test. If the monitor settings
permit, an in-field bump test may be
performed in an area known to be
nonhazardous.
Bump Overdue Screen
A “b” indicates which sensor(s) is overdue for bump testing. Two
beeps sound every 30 seconds and the calendar and alarm icons
display.
Alarm occurs when one or more sensors are
due for calibration. If the monitor settings
permit, an in-field calibration can be performed
in an area known to be nonhazardous.
Calibration Due Alarm Screen
The gas value flashes for each sensor overdue for calibration.
Three beeps sound every 30 seconds and the calendar and alarm
icons display. The gas cylinder icon flashes.
* The numeric mode display shows gas concentration values; the text mode display shows gas type names in place of gas values.
►Monitor Set-up
Preparing the monitor for first time use is a “3-C” process: charge (if equipped with a lithium-ion battery pack),
configure, and calibrate. This manual section covers charging and configuration for set-up purposes and can be
consulted for ongoing instruction thereafter. Immediately following this section, calibration is covered in the manual
section, Use and Service.
BATTERY PROPERTIES AND MONITOR COMPATIBILITY
Based on the customer order, the Ventis MX4 comes equipped with one of three factory installed batteries:
rechargeable Lithium-ion (Li-ion), rechargeable Extended Range Lithium-ion (extended range Li-ion), or replaceable
alkaline. The factory installed battery pack type is stated on the label affixed to the monitor box. Basic battery
properties and acceptable monitor/battery combinations are shown below.
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Properties and Compatibility
Battery Pack
Rechargeable
Li-ion
Rechargeable
Extended Range Li-ion
Replaceable
Alkaline
No
Yes
Yes
Ventis MX4 diffusion monitor compatible
Yes
Yes
Yes
Battery lifetime
300 charge cycles
300 charge cycles
--
Battery re-charge time
3-5 hours
3-7.5 hours
N/A
Ventis MX4 aspirated monitor compatible
Nominal run time (when fully charged and operating at room temperature)
For the aspirated monitor
--
12 hours
4 hours
For the diffusion monitor
12 hours
20 hours
8 hours
NOTE: When a lithium-ion battery becomes deeply discharged and the instrument is docked, it can take up to an hour for the
instrument display to indicate that the battery is charging.
CHARGING THE LITHIUM-ION BATTERY PACKS
The lithium-ion battery packs are charged at the factory. As some or all of the charge may deplete before the monitor
arrives or is unpacked, it is recommended that the monitor be fully charged before first time use. The lithium-ion
equipped Ventis MX4 can be charged with any of the products listed below.









DS2 Docking Station™ for Ventis MX4
V-Cal™ Calibration Station
V-Cal™ 6-Unit Calibration Station
Single Unit Charger
Single Unit Charger/Datalink
6-Unit Charger
Single Unit Automotive Charger, 12 VDC
Single Unit Truck-Mount Charger, 12 VDC, with Cigarette Adapter
Single Unit Truck-Mount Charger, 12 VDC, Hard Wired
NOTE: The above products are all equipped with a yellow LED “presence” indicator. This LED confirms that the monitor is properly seated
in the cradle such that the monitor can charge; however, it is NOT intended to be used as a charging indicator.
This LED indicator may go out intermittently during normal charging functions and will not light if the unit is fully charged when placed in the
cradle. Always refer to the monitor display’s battery level indicator to confirm the battery charge level.
The Single Unit Charger is generally shipped with the monitor. Equipped with a movable partition, which fits in each
of two dedicated slots, it charges the diffusion and aspirated monitors with their compatible lithium-ion battery packs.
Place the partition in the back slot for a diffusion or aspirated monitor with an Extended Range Li-ion battery pack.
Place the partition in the front slot to charge a diffusion monitor with a Li-ion battery pack.
Instructions
NOTICES
 Charge the monitor in an area known to be nonhazardous.
 When using the charger and adjusting its partition, take care NOT to touch the battery contacts located at
the front of the cradle bottom.


The single unit charger has a universal power cord; change the plug insert, if needed, and plug into the
appropriate outlet.
To properly adjust the partition, if needed, complete and observe the following.
o Lift up to remove from slot.
o Push down to place in the desired slot.
o When partition is inserted correctly, a click sounds.
Recommended Practice: To prevent the loss of the partition, it should always reside in the cradle in one of its two
dedicated slots. Choose the most used slot. Do not place the partition in the forward most compartment of the charger
where the battery contacts are located.

To properly place the monitor in the charger, complete or observe the following.
o The monitor’s display side faces the user.
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o
o
The charging contacts on the monitor bottom meet the contact pins inside the charger’s cradle.
Refer to the monitor’s battery icon to confirm the battery charge level.
 If the battery is less than fully charged, the monitor displays the battery icon (flashing empty
to full, repeatedly).
 If the battery is fully charged, the monitor displays a full battery icon.
POWER-ON AND -OFF
To power-on the Ventis MX4, press ON/OFF/MODE and hold for three to five seconds. During the first ten to15
seconds the monitor is on, its firmware completes internal tests and the user sees or hears what is described and
shown below. Following this initialization phase, a countdown screen displays. During this 20-second countdown, the
monitor user can enter configuration mode to manually adjust monitor settings.
Display and Options
Instructions
No user action required.
Visual Test Screen
Displays for up to five seconds as the monitor completes a sensor
and alarm check. Visual, vibration, and audio alarms turn on
briefly, then off.
Be sure the pump inlet is not blocked.
Pump Set-up Screen
Displays for five to seven seconds for an aspirated monitor. The
monitor checks for the presence of a pump. If present, the pump is
started and, if needed, adjusted for optimum flow.
No user action required.
Software Version Screen
The Software Version Screen message displays for five seconds.
No user action required.
Calibration Days Screen
When the up arrow (▲) is featured, the number of days displayed
for each sensor indicates when the next calibration is due. When
the down arrow (▼) is featured, the number of days displayed
indicates when the last calibration occurred.
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To enter gas monitoring mode:
allow the countdown to complete and advance
to the Gas Monitoring Screen. Proceed to the
manual section, Monitor Use and Service.
Countdown Screen
Displays the 20 second countdown, one second at a time, from 20
to one. Options :
Enter gas monitoring mode
Enter configuration mode
To enter configuration mode:
simultaneously press ON/OFF/MODE and
ENTER, hold for three seconds, and release.
Press ON/OFF/MODE, hold for the full five
second countdown to zero, and release to
power-off the monitor.
Power-Off Screen
The screen displays a five-second countdown accompanied by five
beeps and LED flashes.
CONFIGURATION
Introduction
Before first time use of the monitor, its settings should be reviewed and, if needed, be adjusted. Qualified safety
personnel should complete the following tasks.




Review the monitor settings for compliance with company policy and any applicable regulations, laws, and
observed guidelines as issued by regulatory agencies and government or industry groups.
Determine which settings, if any, require adjustment.
Make the adjustments or supervise other qualified personnel in the process.
When using instrument-compatible Industrial Scientific docking station software (e.g., iNet, Docking Station
Server Administrative Console [DSSAC], or Accessory Software), maintain the mandated settings through
the software or by manually configuring the instrument settings after docking.
Monitor settings should be reviewed regularly and adjusted as needed. The following settings are adjustable or
“configurable" for the Ventis MX4.
LEL Type
Calibration Mode Setting
Low Alarm Settings
High Alarm Settings
TWA Alarm Settings
TWA Interval Settings
STEL Alarm Setting
Calibration Gas Settings
Clock Settings
Date Settings
Display Mode Setting
Confidence Indicator (on/off)
Confidence Indicator (type)
Bump Test In-field
Bump Test Due Warning
Bump Test Time Set-point
Bump Test Percentage
Bump Test Response Time
Alarm Latch Set
Zero In-field
Calibration In-field
Calibration Due Alarm
Calibration Due Set-point
Security Code
Language Selection
Always-on Setting
Shutdown In Alarm Setting
Alarm on Dock Setting
The Ventis MX4 can be configured manually as instructed below. Any changes made take effect immediately upon
exiting the configuration mode.
Instructions
NOTICES
 The configuration mode should be accessed only by safety personnel authorized to change monitor settings
based on company policy.
 Read ALL requirements and instructions outlined below, including the screen-by-screen process description,
before beginning the configuration process.
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The configuration mode can be entered during the 20-second countdown of the power-on process. During the
countdown, simultaneously press ON/OFF/MODE and ENTER, hold for three seconds, and release to enter
configuration mode. (While in the configuration mode, the same button presses cause the monitor to exit
configuration). Each configuration screen times out after 30 seconds and the monitor enters gas monitoring mode. To
re-enter the configuration mode, power-off the monitor, then power-on and repeat the entry process.
Throughout the configuration process, the main functions of the two buttons are as follows.

The ENTER button is used to edit values. It is also used, where noted, to begin a process or a step in a
process.

The ON/OFF/MODE button is used to set the value. Where noted, it is also used to bypass a process or
step in a process, or to advance to the next configuration screen.
The first screen to display in configuration mode depends on three things:

security code setting,

the presence or absence of the China MA feature,

and the presence or absence of an LEL sensor.
If the security code setting is 000, the security feature is disabled and the Enter Security Code Screen does NOT
appear. If the security code is NOT 000, the security feature is enabled and the monitor displays the Enter
Security Code Screen.
The monitor next checks for the presence of a China MA mining feature. If this feature is operational, the monitor
displays the Zero Initiate Screen.
If the China MA mining feature is NOT operational, the monitor then checks for an installed LEL sensor. If
installed, the monitor displays the LEL Type Screen. If no LEL sensor is installed, the monitor displays the Zero
Initiate Screen.
Configuration Process
Display and Options
Instructions
Press ENTER to edit the value, if needed; press repeatedly or hold down
to speed the increment pace to reach the valid security code.
Press ON/OFF/MODE to enter configuration mode and arrive at the
next applicable screen.
Enter Security Code Screen
The presence of this screen indicates an
enabled security feature.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the Zero Initiate
Screen.
LEL Type Set Screen
Options
LEL
CH4
17
NOTE: If the LEL type is changed, the sensor goes into calibration fail mode. A full calibration
is required before the monitor can be used and is accessible from the next screen in the
configuration process, the Zero Initiate Screen. For complete calibration instructions, proceed
to the manual section, Zero, Calibration, and Bump Testing.
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Ventis™ MX4 Product Manual
Press ON/OFF/MODE to bypass the zero and calibration processes and
advance to one of two screens.
Zero Initiate Screen
Options
Bypass zero and calibration process.
Begin zero and calibration process.
If the installed sensor set includes H2S and NO2, OR, SO2 and NO2,
the monitor is pre-set for standard calibration mode and the Low
Alarm Set-point Screen displays.
For all others installed sensor combinations, the Calibration Mode
Selection Screen displays.
Press ENTER to begin the zero and calibration process. Proceed to the
manual section, Zero, Calibration, and Bump Testing
The quick calibration option sets the monitor to calibrate all four sensors
simultaneously. The standard calibration option sets the monitor to
calibrate each sensor independently.
Calibration Mode Selection
Options
0 = Standard Calibration
1 = Quick Calibration
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the Low Alarm
Set Screen.
NOTE: The user can edit the values for four alarm types in configuration mode. The monitor presents these options
in the order shown below.
1. Low alarm
2. High alarm
3. TWA (if toxic sensors installed)
4. STEL (if toxic sensors installed)
For each alarm type (e.g., low alarm), the user can edit the alarm settings for each installed sensor, one sensor
at a time. The order in which the sensors are subject to change is as follows.
1. Toxic sensor 1
2. LEL sensor
3. Toxic sensor 2
4. O2 sensor
Low Alarm Set-point Screen
Displays the existing low alarm value for
each installed sensor. If any one of the
sensors is NOT installed, its position on
the display is blank.
Press ON/OFF/MODE to bypass the low alarm value set process and
advance to the High Alarm Set-point Screen.
Press ENTER to begin the low alarm value set process.
On the display, the first sensor subject to change flashes.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value.
The next sensor subject to change flashes. Continue to use the
ENTER and ON/OFF/MODE buttons, respectively, to edit and
set each sensor’s low alarm value.
After the alarm value is set for each installed sensor,
press ON/OFF/MODE to advance to the High Alarm Setpoint Screen.
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Ventis™ MX4 Product Manual
High Alarm Set-point Screen
Displays the existing high alarm value
for each installed sensor. If any one of
the sensors is not installed, its position
on the display is blank.
Press ON/OFF/MODE to bypass high alarm value set process and
advance to one of two screens as noted below.
Press ENTER to begin the high alarm value set process.
On the display, the first sensor subject to change flashes.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value.
The next sensor subject to change flashes. Continue to use the
ENTER and ON/OFF/MODE buttons, respectively, to edit and
set each sensor’s high alarm value.
After the alarm value is set for each installed sensor,
press ON/OFF/MODE and advance to one of two screens.
If at least one toxic sensor is installed, the TWA Alarm
Set Screen displays.
If NO toxic sensors are installed, the Calibration Gas
Set Screen displays.
TWA Alarm Set-point Screen
Displays the existing TWA values for the
toxic sensors installed. No other sensor
readings appear.
Press ON/OFF/MODE to bypass the TWA alarm value set process and
advance to the TWA Interval Set-point Screen.
Press ENTER to begin the TWA alarm value set process.
On the display, the first sensor subject to change flashes.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value.
The next sensor subject to change flashes. Continue to use
the ENTER and ON/OFF/MODE buttons, respectively, to
edit and set each alarm value.
After the alarm value is set for each installed sensor,
press ON/OFF/MODE to advance to the TWA Interval
Set Screen.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the STEL Alarm
Set-point Screen.
TWA Interval Set-point Screen
Displays the existing TWA interval.
The value can be set from one to 40
hours, in increments of one.
STEL Alarm Set-point Screen
Displays the existing STEL values for
the toxic sensors installed. No other
sensor readings appear.
Press ON/OFF/MODE to bypass the STEL alarm value set process and
advance to the Calibration Gas Set Screen.
Press ENTER to begin the STEL alarm value set process.
On the display, the first sensor subject to change flashes.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value.
The next sensor subject to change flashes. Continue to use the
ENTER and ON/OFF/MODE buttons, respectively, to edit and
set each sensor’s STEL alarm value.
After the alarm value is set for each installed sensor,
press ON/OFF/MODE to advance to the Calibration Gas
Set Screen.
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Ventis™ MX4 Product Manual
Calibration Gas Set Screen
Displays the existing calibration gas
value for each installed sensor.
If any one of the sensors is not installed,
its position on the display is blank.
Clock Set Screen
Displays the existing time values using a
24-hour time format.
Press ON/OFF/MODE to bypass the calibration gas set process and
advance to the Clock Set Screen.
Press ENTER to begin the calibration gas value set process.
On the display, the first sensor subject to change flashes.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value.
The next sensor subject to change flashes. Continue to use the
ENTER and ON/OFF/MODE buttons, respectively, to edit and
set each sensor’s calibration gas value.
After calibration gas value is set for each installed sensor,
press ON/OFF/MODE to advance to the Clock Set Screen.
Press ON/OFF/MODE to bypass the clock set process and advance to
the Date Set Screen.
Press ENTER to begin the clock set process.
On the display, the first time value subject to change flashes.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value.
The next value subject to change flashes. Use the ENTER
and ON/OFF/MODE buttons, respectively, to edit the value.
After all values are set, press ON/OFF/MODE and
advance to the Date Set Screen.
Date Set Screen
Displays the existing date. The value
displayed on the far left is the month
and to its right the day. The year is
displayed beneath the day.
Press ON/OFF/MODE to bypass the date set process and advance to
the Display Mode Set Screen.
Press ENTER to begin the date set process
On the display, the first date value subject to change flashes.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace. Press ON/OFF/MODE
to set the value.
The next date value subject to change flashes. Continue to use
the ENTER and ON/OFF/MODE buttons, respectively, to edit
and set each value.
After all values are set, press ON/OFF/MODE and
advance to the Display Mode Set Screen.
The display mode selected determines whether the monitor user will see
a numeric or text display (including alarm displays) when the monitor is in
the gas monitoring mode.
Display Mode Set Screen
Options
0 = Numeric Mode
1 = Text Mode
© 2014 Industrial Scientific Corporation
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the Confidence
Indicator Set Screen.
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Ventis™ MX4 Product Manual
With an enabled confidence indicator, the monitor will emit a
signal, every 90 seconds in gas monitoring mode, to inform the
user it is operational.
Confidence Indicator On-Off Screen
Options
0 = Disable/off
1 = Enable/on
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to one of two
screens.
If the confidence indicator is enabled, the Confidence
Indicator Type Set Screen displays.
If the confidence indicator is disabled, the Bump Test Infield Option Screen displays.
Sets the type of signal that will be emitted by an enabled
confidence indicator.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the Bump
Test In-field Option Screen.
Confidence Indicator Type Set Screen
Options
1 = audible chirp
2 = LED flash
3 = combination audible chirp and LED flash
When enabled, permits all monitor users to bump test the monitor
from the gas monitoring mode.
Bump Test In-field Option Screen
Options
0 = Disable/off
1 = Enable/on
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to one of two
screens.
If Bump Test In-field is enabled, the Bump Due Warning
Option Screen displays.
If the Bump Test In-field is disabled, the Alarm Latch Set
Screen displays.
When enabled, the monitor will sound two beeps every 30
seconds and its display icons will indicate a bump test is due.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the Bump
Test Time Set-point Screen.
Bump Due Warning Option Screen
Options
0 = Disable/off
1 = Enable/on
Sets the elapsed time allowed between bump tests.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value and advance to the Bump
Test Percentage Requirement Screen.
Bump Test Time Set-point Screen
Value range: .5 days to 7.0 days
Value increment: .5 days
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Ventis™ MX4 Product Manual
Sets the percentage of calibration gas the monitor expects to be
exposed to.
Bump Test Percentage Requirement Screen
Value range: 50% to 99%
Value increment: one percent
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value and advance to the Bump
Test Response Time Screen.
Sets the bump test response time period.
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value and advance to the Latch
Alarm Set Screen.
Bump Test Response Time Screen
Value range: 30 to 300 seconds
Value increment: five seconds
When enabled, if the monitor goes into any gas-related alarm, it
will remain in alarm until after the gas concentration is less than (or
more than for oxygen) the alarm set point, and the monitor user
presses the ENTER button for one second.
Latch Alarm Set Screen
Options
0 = Normal mode
1 = Latching mode
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the Zero
In-field Screen.
When enabled, all monitor users are permitted to zero the monitor
from the gas monitoring mode.
Zero In-field Screen
Options
0 = Disable/off
1 = Enable/on
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to one of two
screens.
If Zero In-field is enabled, the Calibration In-field Option
screen displays.
If Zero In-field is disabled, the Calibration Due Alarm screen
displays.
When enabled, all monitor users are permitted to calibrate the
monitor from the gas monitoring mode.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the
Calibration Due Alarm Option.
Calibration In-field Option Screen
Options
0 = Disable/off
1 = Enable/on
When enabled, the monitor will activate the calibration due alarm,
in gas monitoring mode, when any sensor is due for calibration. A
flashing gas cylinder and gas type will appear on the display and
three beeps will sound every 30 seconds.
Calibration Due Alarm Option Screen
Options
0 = Disable/off
1 = Enable/on
© 2014 Industrial Scientific Corporation
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the
Calibration Due Set-point screen.
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Ventis™ MX4 Product Manual
Sets the elapsed time allowed between calibrations.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the
Calibration Days Set Screen.
Calibration Due Set-point Screen
Value range: one to 365 days
Value increment: one day
Sets how the Calibration Days Screen will display in operation
mode.
Calibration Days Set Screen
Options
0 = display days since last calibration
1 = display days until next calibration
NOTE: The up arrow ( ▲) will be featured on-screen when the
unit is set to display the number of days before a sensor’s
next calibration is due. The down arrow (▼) will be featured
when the unit is set to display the number of days since the
last calibration was performed. A value will be displayed for
each installed sensor.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the
Security Code Set Screen
A security code value of 000 permits all monitor users to enter
configuration mode and gain access to change the monitor’s
settings. A value other than 000 will restrict access to the
configuration mode; it will also restrict access to the shutdown
process for an instrument that is configured for “always on”.
Security Code Set Screen
Valid values: 000 to 999.
Increment value: one
Press ENTER to edit the value, if needed; press repeatedly or
hold down to speed the increment pace.
Press ON/OFF/MODE to set the value and advance to the
Language Selection Screen.
Allows the choice of display languages as applied to select
screens.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and return to the LEL Type
Set Screen.
Language Selection Screen
Options
E = English
F = French
d = German
When enabled, the shutdown process is security-code protected
only if the security code is not equal to 000. If the code is set to
anything other than 000, the user will be prompted to enter the
unit's security code to complete the shutdown process.
Always-on Set Screen
Options
0 = Disable/off
1 = Enable/on
23
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the next
configuration mode screen.
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Ventis™ MX4 Product Manual
Disallow or allow operator-activated shutdown when the unit is in
alarm.
Shutdown In Alarm Screen
Options
0 = Disallows shutdown
1 = Allows shutdown
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the next
configuration mode screen.
Disable or enable alarm indicators when the unit is docked.
Press ENTER to edit the value, if needed.
Press ON/OFF/MODE to set the value and advance to the next
configuration mode screen.
Alarm on Dock Screen
Options
0 = Disable/off
1 = Enable/on
►Monitor Use and Service
Proper monitor use and service includes everything from bump testing and calibration to keeping the monitor clean,
proper air sampling, and the replacement of parts and components. Beginning with calibration and bump testing, the
following sections provide information and instruction on all use and service tasks.
ZERO, CALIBRATION, AND BUMP TESTING
Gas detection instruments are potentially life-saving devices. When completed regularly, the procedures defined
below help to maintain proper instrument functionality and enhance operator safety.
Procedures
Configuration. The configuration process allows qualified personnel to review and adjust a unit's settings.
Bump Test (or "functional test"). Bump testing checks for sensor and alarm functionality. The installed sensors are
briefly exposed to expected concentrations of calibration gases that are greater than the sensors’ low alarm set
points. When one or more sensors “pass” the test, they are “functional” and the unit will alarm. Each sensor’s “pass”
or “fail” result is indicated on the unit’s display.
Note: a bump test does not measure for sensor accuracy (see “Calibration”).
Zero. Zeroing sets each installed sensor to recognize the ambient air as clean air. If the ambient air is not truly clean
air, any gasses that are present and relevant to the installed sensor types will be measured and displayed as zero.
Readings will be inaccurate until the unit is correctly zeroed in truly fresh air or with a zero air cylinder.
Calibration. All sensors gradually degrade over time. This diminishes a sensor's ability to measure gas
concentrations accurately; however, regular calibrations adjust the instrument to compensate for this decline in
sensitivity. During calibration, the installed sensors are exposed to expected concentrations of calibration gases and,
when needed, the instrument will self-adjust to ensure the accurate measurement and display of gas concentration
values.
Note: when a sensor has degraded beyond an acceptable level, no further adjustment is possible and the sensor will no longer pass
calibration.
Peak Readings. The instrument stores the highest detected gas readings, the "peak readings" or "peaks". Bump
testing and calibration will often register new peak readings. Therefore, the clearing of the peak readings should
follow each calibration. The instrument operator may also wish to clear the peak readings after a bump test, before a
change in location, or after an alarm is addressed and cleared.
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Note: The peak readings and the data log readings are stored independently of one another; therefore, clearing the peak reading does not
affect the data log. Powering the instrument off or changing its battery does not affect the peak reading. These checks and balances help
promote operator safety, and serve to contain the peak readings in a "black-box" manner. In the event of a gas-related incident, this black-box
record can be useful to the safety team or a prospective investigator.
Recommendations
Industrial Scientific Corporation (ISC) minimum frequency recommendations for each procedure are summarized in
the table below. These recommendations are based on field data, safe work procedures, industry best practices, and
regulatory standards to help ensure worker safety. Industrial Scientific is not responsible for setting safety practices
and policies. These policies may be affected by the directives and recommendations of regulatory groups,
environmental conditions, operating conditions, instrument use patterns and exposure to gas, and other factors.
Procedure
ISC Recommended minimum frequency
Configuration
Before first use and as needed thereafter.
Calibrationa
Before first use and monthly thereafter.
Bump testb
Prior to each day’s use.
aBetween
regular calibrations, ISC also recommends a calibration be performed immediately following each of these incidences: the unit falls,
is dropped, or experiences another significant impact; is exposed to water; fails a bump test; or has been repeatedly exposed to an over-range
(positive or negative) gas concentration. A calibration is also recommended after the installation of a new (or replacement) sensor.
bIf conditions do not permit daily testing, bump tests may be done less frequently based on company safety policy.
Note: The use of calibration gases not provided by ISC may void product warranties and limit potential liability claims.
General information
The zero, calibration, and bump testing tasks are in-field enabled or in-field disabled in the configuration process.
This permits or denies access to these functions from the gas monitoring mode. When any of these options is
enabled, it is accessible to all monitor users. In gas monitoring mode, a series of presses on the ON/OFF/MODE
button gives the user access to the following screens and processes in the order shown.







Gas Monitoring Screen
Days Since Calibration
Zero Initiate (if in-field enabled)
o Calibration Apply Gas Screen (if in-field enabled)
Bump Test Initiate (if in-field enabled)
Peak Readings
TWA Readings
STEL Readings
The monitor is capable of performing two types of calibration, and this option is set in configuration mode. The
calibration type selected also determines the monitor’s bump test type. With a “quick” calibration, the monitor is set to
calibrate and bump test all installed sensors simultaneously. With a “standard” calibration setting, these tasks are
completed independently for each installed sensor in the order shown below.
1. Oxygen sensor*
2. Toxic sensor 1
3. LEL sensor
4. Toxic sensor 2
*If set to the default value of 20.9% or 21%, the Oxygen sensor calibrates during the zero process and toxic 1 is the first to calibrate in the
calibration process.
The Ventis MX4 monitor can be calibrated with any of the accessories listed.

Calibration cup and/or tubing shipped with the monitor (see instructions below)

V-Cal Calibration Station (consult the calibration station manual for instruction)

DS2 Docking Station for Ventis (consult the docking station manual for instruction)
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Instructions
Calibration and Bump Testing with Calibration Cup and/or Tubing
Read all instructions before beginning: notices, supply check-list, gas cylinder preparation, and the complete screenby-screen walk-through of the zero, calibrate, and bump test processes. Each process is presented in the order in
which it is accessible from gas monitoring mode.
NOTICES
 Industrial Scientific recommends that full monitor calibration be performed, using a known certified
concentration(s) of Industrial Scientific calibration gas(es), to prepare the monitor for first time use, and
monthly (at a minimum) thereafter, to help ensure monitor accuracy.
 Industrial Scientific also recommends that each monitor be zeroed and bump tested before each use with a
known certified concentration(s) of Industrial Scientific calibration gas(es).
 Read ALL requirements and instructions outlined below, including the screen-by-screen process description,
before beginning the zero, calibration, or bump testing processes.
 Only qualified personnel should zero, calibrate, or bump test a monitor.
 Zero, calibration, and bump testing functions should be performed in a fresh air environment known to be
nonhazardous.
 After calibration or bump testing, or after terminating either process, stop the flow of gas.
Supplies
Item
Monitor/Regulator**
Aspirated monitor
with Demand Flow
Regulator**
Aspirated monitor
with Positive Flow
Regulator**
Diffusion monitor
with Positive Flow
Regulator**
Calibration cup*
No
No
Yes
Calibration tubing 2 feet in length*
Yes
No
Yes
Calibration tubing 2 feet in length with
integrated “t” fitting
No
Yes
No
Calibration gas cylinder
Yes
Yes
Yes
*Shipped with monitor.
**Industrial Scientific recommends 1) the use of positive flow regulators with a flow rate of .5 LPM, and 2) the diffusion monitor be calibrated or bump
tested using a positive flow regulator, NOT a demand flow regulator.
Diffusion monitor with positive flow regulator.
© 2014 Industrial Scientific Corporation
Aspirated monitor with demand flow regulator.
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Prepare the gas cylinder for use

According to the supply chart above, attach the correct regulator to the gas cylinder and turn clockwise to tighten.

Next, choose instruction A., B., or C. based on the monitor/regulator combination in use.
A.
Aspirated with demand flow regulator
Attach either end of the tubing to the cylinder’s nipple.
DO NOT ATTACH THE OTHER END OF THE TUBING TO THE MONITOR BEFORE REACHING THE
“APPLY GAS SCREEN”. Completing the connection of the tubing will cause gas to flow. If gas is
applied before reaching the appropriate screen, the monitor will go into alarm and a failure will be
logged.
B.
Aspirated with positive flow regulator
The calibration tubing with the t-fitting (not included) has two different sized openings, a narrow opening
at one end and a wider opening at the other end.
Attach the wider opening to the nipple on the cylinder’s regulator.
Attach the smaller opening to the pump inlet.
DO NOT APPLY THE GAS BEFORE REACHING THE “APPLY GAS SCREEN”. If gas is applied before
that point, the monitor will go into alarm and a failure will be logged.
C. Diffusion with positive flow regulator
Attach either end of the tubing to the cylinder’s nipple.
Attach the other end of the tubing to the calibration cup’s nipple.
DO NOT ATTACH THE CALIBRATION CUP TO THE MONITOR OR APPLY THE GAS BEFORE
REACHING THE “APPLY GAS SCREEN”. If gas is applied before that point, the monitor will go into
alarm and a failure will be logged.
Zero and Quick Calibration Process
Display and Options
Instructions
Press ON/OFF/MODE to advance to the Days since
Calibration Screen.
Gas Monitoring Screen
Numeric mode display (left)
Text mode display (right)
Displays the gas concentration readings (or gas names
in text mode) for all installed sensors. If a sensor is NOT
installed, its position on the LCD is blank.
Press ON/OFF/MODE to advance to one of three
screens.
If zero in-field is enabled, the user advances to the
Zero Initiate Screen.
Days Since Calibration Screen
Displays the number of days since the last successful
calibration for each installed sensor. Each value can be
different.
If zero in-field is disabled and bump test in-field is
enabled, the user advances to the Bump Test Initiate
Screen.
If zero in-field and bump test in-field are both
disabled, the user advances to the Peak Readings
Screen.
NOTE: When zero, calibration, and bump test are ALL in-field enabled, and the user has entered zero from the gas
monitoring mode, the monitor expects to be calibrated following a successful zero.
If the desired task, after zero, is bump testing (or clearing the peaks) and NOT calibration, follow the instructions at
the Calibration Apply Gas Screen to terminate calibration.
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Press ENTER to begin the zero process and advance to
the Zero In-process Screen.
Press ON/OFF/MODE to bypass zero and calibration
and advance to one of two screens.
Zero Initiate Screen
Options:
Enter Zero
Bypass Zero
If bump test in-field is enabled, the user advances to
the Bump Test Initiate Screen.
If bump test in-field is disabled, the user advances to
the Peak Readings Screen.
Allow the zero process to complete and advance to the
Zero Results (Pass or Fail) Screen.
Zero In-process Screen
Each sensor’s numerical value becomes zero except
O2. An updated O2 span value displays. The clock icon
flashes and the zero icon displays.
After the zero process, press ON/OFF/MODE to
bypass calibration of the installed toxic and combustible
sensors. The user returns to the mode from which the
calibration process was entered (configuration or gas
monitoring).
NOTE: during the zero process, the O2 sensor is calibrated (when set to
default gas volume of 20.9%)
NOTE: The “span reserve” of a sensor measures its sensitivity. The
displayed span value divided by the calibration gas value equals the
span reserve percentage. A span reserve percentage of greater than
70% indicates a “good” sensor; 50%-70% indicates “marginal”
sensitivity. When the span reserve percentage is less than 50%, the
sensor will not pass calibration.
Within Ten Seconds
Press ENTER to repeat the zero process.
Press ON/OFF/MODE to advance to one of two screens.
If zero was entered from…
Zero Results (Pass) Screen
The check mark displays to indicate a successful zero
and a short beep sounds. Each sensor’s numerical
values display at zero except O2.
Options:
Repeat zero
Begin calibration
Enter gas monitoring mode
…configuration mode, the user advances to the
Calibration Apply Gas Screen.
… gas monitoring mode and the calibration in-field
option is enabled, the user advances to the
Calibration Apply Gas Screen.
…gas monitoring mode and the calibration in-field
option is disabled, the user advances to the Gas
Monitoring Screen in the gas monitoring mode.
If neither ENTER nor ON/OFF/MODE is pressed, within
ten seconds, the user advances to the Gas Monitoring
Screen in the gas monitoring mode.
Press ON/OFF/MODE (or wait ten seconds) to return to
the Zero Initiate Screen and repeat the zero process.
Zero Results (Fail) Screen
Displays an “F” or “P”, respectively, for each failed or
passed sensor. For O2, if the sensor passed its
calibration, the sensor reading displays.
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To Terminate
Press ON/OFF/MODE while the gas cylinder icon flashes
to terminate the quick calibration process (or to skip a
sensor’s calibration in standard calibration) and return to
the gas monitoring mode.
Calibration Apply Gas Screen*
The gas cylinder icon flashes. Each sensor’s display
shows the calibration gas concentration to be applied.
(The O2 display is blank as the sensor was calibrated
during zeroing.) The monitor waits up to five minutes to
successfully sense the gas.
Calibration In-progress Screen*
If gas is sensed, the gas values for the LEL and
toxic sensors increase and the O2 value decreases.
If gas is NOT sensed, a failed calibration registers
and the Calibration Failed Screen displays.
To Calibrate
From the already prepared gas cylinder, start the flow of
gas as noted below for the monitor/regulator combination
in use.
For an aspirated monitor with a demand flow
regulator, complete the tubing connection from the
regulator to the pump inlet.
For an aspirated monitor with a positive flow
regulator, turn (counterclockwise) the regulator’s
knob.
For a diffusion monitor with a positive flow
regulator:

Place the calibration cup over the upper portion
of the monitor’s case top (front of monitor). To
attach properly, complete or observe the
following.
o The cup fully covers the sensor ports.
o The monitor’s display and buttons are NOT
covered.
o The cup’s side arms fit securely in the
grooves on the sides of the monitor.
o The Ventis MX4 name on the calibration
cup is upright and readable.
o The cup’s nipple points up and away from
the monitor.

Turn (counterclockwise) the regulator’s
knob.
STOP THE FLOW OF GAS.
After calibration, or if calibration is terminated at anytime
during the process, stop the flow of gas as follows.
For an aspirated monitor with a demand flow
regulator, disconnect the tubing from the pump inlet.
For an aspirated or diffusion monitor with a
positive flow regulator, turn (clockwise) the
regulator’s knob.
Sensor Results Screen*
Pass (top) or Fail (bottom) Screen
The display alternately shows a “P” for pass (or “F” for
fail) and the final span value reading for each sensor. A
check mark displays and a single beep sounds.
All Sensors Pass
The user returns to the mode from which the calibration
process was entered (configuration or gas monitoring).
Sensor Fail
If one or more sensors fail calibration, the Calibration Fail
Screen displays and a system level alarm turns on.
NOTE: The “span reserve” of a sensor measures its sensitivity. The
displayed span value divided by the calibration gas value equals the
span reserve percentage. A span reserve percentage of greater than
70% indicates a “good” sensor; 50%-70% indicates “marginal”
sensitivity. When the span reserve percentage is less than 50%, the
sensor will not pass calibration.
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Any failed sensor stays in alarm until it passes a
calibration or is replaced.
Press ON/OFF/MODE to repeat calibration.
Calibration Failed Screen*
Gas readings display for all successfully calibrated
sensors and an “F” displays for any failed sensors. A
system level alarm turns on. The warning icon and gas
cylinder display to indicate a sensor calibration failure.
* During the standard calibration or standard bump test process, a series of apply gas, in-progress, and results screens show for EACH sensor as it
is calibrated or tested.
Bump Test Process
Display and Options
Instructions
Press ON/OFF/MODE to bypass the bump test process
and advance to the Peak Readings Screen.
Press ENTER to begin the bump test process.
Bump Test Initiate Screen
Options
Begin process
Bypass process
To Terminate
Press ON/OFF/MODE while the gas cylinder icon flashes
to terminate the quick bump test process (or to skip a
sensor’s testing in standard bump testing). The user
returns to the Gas Monitoring Screen.
Bump Test Apply Gas Screen
Displays the bump test gas concentrations the monitor
is expecting to receive. The monitor waits up to five
minutes to successfully sense the gas.
To Bump Test
From the already prepared gas cylinder, start the flow of
gas as noted below for the monitor/regulator combination
in use.
If gas is sensed, the user advances to the Bump
Test In-progress Screen.
For an aspirated monitor with a demand flow
regulator, complete the tubing connection from the
regulator to the pump inlet.
If gas is NOT sensed, a failed bump test occurs
and the user advances to the Bump Test Results
Screen displays.
For an aspirated monitor with a positive flow
regulator, turn (counterclockwise) the regulator’s
knob.
For a diffusion monitor with a positive flow
regulator:

Place the calibration cup over the upper portion
of the monitor’s case top (front of monitor). To
attach properly, complete or observe the
following.
o The cup fully covers the sensor ports.
o The monitor’s display and buttons are not
covered.
o The cup’s side arms fit securely in the
grooves on the sides of the monitor.
o The Ventis MX4 name on the calibration
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Ventis™ MX4 Product Manual
cup is upright and readable.
The cup’s nipple points up and away from
the monitor.
Turn (counterclockwise) the regulator’s knob.
o

As the bump test progresses, observe the display
activity (left).
After the bump test, the Bump Test Results Screen
displays.
Bump Test In-progress Screen
Displays when gas is sensed within five minutes. The
clock icon flashes to indicate the test is in-progress. The
sensor reading(s) display. The LEL and toxic sensor
readings increase and the O2 reading decreases.
STOP THE FLOW OF GAS.
After bump testing, or if bump testing is terminated at
anytime during the process, stop the flow of gas
from the cylinder as follows.
For an aspirated monitor with a demand flow
regulator, disconnect the tubing from the pump inlet.
For an aspirated or diffusion monitor with a
positive flow regulator, turn (clockwise) the
regulator’s knob.
No User Action Required
After a passed bump test, the monitor goes into gas
monitoring mode.
Bump Test Results (Pass) Screen
The above displays an all sensor pass result. If one or
more sensors fail, the “F” shows in place of the “P”. The
pass/fail screen (left) and the final sensor reading
screen (right) display alternately three times. A single
beep sounds to indicate the bump test is completed.
After a failed bump test, the Bump Test Fail Screen
displays and a low level audio alarm turns on.
The monitor should be fully calibrated after a failed bump
test.
Bump Test Results (Fail) Screen
The “bF” displays under each gas type to indicate a
bump test failure. The system level alarm turns on and
the gas cylinder icon flashes.
NOTE: After a full calibration, the O2 sensor must pass a bump test to
clear the bump test fail status.
Press and release ENTER to clear the peak values, if
desired.
Press ON/OFF/MODE to advance to one of two screens.
If toxic sensors are installed, the user advances to
the TWA Readings Screen.
Peak Readings Screen
Displays the peak icon and peak gas concentrations for
each installed sensor since the last time the peak
readings were cleared. (For O2, the lowest reading is
shown.)
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If no toxic sensors are installed, the user advances
to the Gas Monitoring Screen.
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Ventis™ MX4 Product Manual
Press and release ENTER to clear the displayed TWA
reading(s), if desired.
Press ON/OFF/MODE to advance to the STEL Readings
Screen.
TWA Readings Screen
Displays the TWA (time weighted average) icon and
calculated readings for each toxic sensor installed; all
other sensor values are blank.
Press and release ENTER to clear the reading(s), if
desired.
Press ON/OFF/MODE to advance to the Gas Monitoring
Screen.
STEL Readings Screen
Displays the STEL (short term exposure limit) icon and
STEL values for each toxic sensor installed; all other
sensor values are blank. The STEL value is the running
average over the last 15 minutes.
* During the standard calibration process, a series of apply gas, in-progress, and results screens show for EACH sensor as it is calibrated or tested.
RECOMMENDED PRACTICES FOR IN-FIELD AIR SAMPLING
Diffusion monitor
When worn, the diffusion monitor should be fastened securely and attached to ensure the sensor portals are exposed
to the air. The monitor should be in full view. No part of the monitor should be covered by any garment or part of a
garment.
Aspirated monitor
Before using an aspirated monitor, force a pump fault to ensure the pump and air-sample accessories (sample
tubing, probe, or sample tubing and probe) are working as intended:
1
Power on the monitor.
2
Attach the air-sample accessory(ies) to the pump inlet.
3
Using a finger, cover the opening at the other end of the air-sample tubing (or probe) to block the flow of air.
This should result in a pump fault alarm.
4
After a pump fault occurs, remove the finger from the tubing (or probe). If the unit resumes normal
operation, the pump and air-sampling accessories are working as intended.
Note: If no pump fault occurs or if the unit stays in pump fault, check for debris at these locations: the pump nipple,
inside the inlet barrel, at the water barrier, and inside the pump cradle; attempt to clear any blockage. Check the airsample accessories, too, for debris and for possible crack or leaks.
The Ventis MX4 aspirated monitor is rated to sustain a continuous sample draw for up to 100 feet (30.48 m) with
0.125 inch (0.3175 cm) inside diameter sample tubing. In confined space, an air sample should be taken in four foot
(1.2192 m) intervals. With each sample, the minimum time required to successfully draw air and read the gas
concentrations should include two minutes plus two seconds for every 12 inches (30.48 cm) of tubing.
CLEANING




NEVER use solvents or cleaning solutions of any type.
When necessary, wipe the outside of the Ventis MX4 with a soft, clean cloth.
Make sure the sensor diffusion membrane, inside and out, is free of debris; wipe gently with a cloth or brush that
is soft, clean, and dry.
Make sure the aspirated monitor’s inlet is free of debris.
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Ventis™ MX4 Product Manual
SERVICE
Instructions are provided for battery service; monitor conversion (diffusion to aspirated and vice versa); sensor,
sensor barrier and LCD service; and pump assembly service. Refer to the three-dimensional view diagrams to
identify the parts referenced in the instruction sets, and for screw torque values.
Read all instructions before beginning any monitor service.
NOTICES
 Before beginning any service tasks, power-off the monitor.
 Only qualified staff should perform monitor service and should take the following precautions.
 Take care not to touch battery contacts on the monitor or the battery itself.
 Perform work in a clean air environment that is known to be nonhazardous.
 Perform work on a nonconductive work surface.
 Wear grounding straps.
BATTERY PACKS
NOTICES
 WARNING: INSERT THE ALKALINE BATTERIES WITH THE CORRECT POSITIVE “ + ” AND NEGATIVE
“-“ ORIENTATION. FAILURE TO FOLLOW PROPER BATTERY ORIENTATION WILL RESULT IN
DAMAGE TO THE MONITOR.
 WARNING: The Ventis MX4 is only approved for use with AAA battery types Energizer EN92 and Duracell
MN2400. Do NOT mix battery types.
Battery service instruction sets are provided below for each allowable monitor/battery pack combination. Please
choose, read, and then follow the appropriate instruction set.
Aspirated Monitor Battery Replacement
For an aspirated monitor, two of the three Ventis MX4 battery packs can be used. The Extended Range Li-ion
battery is replaced as a single part. The Alkaline battery unit consists of batteries and a pack for the batteries.
ASPIRATED MONITOR BATTERY REPLACEMENT.
Removing the Battery Pack.
1
Power-off the monitor.
2
Loosen the four captive screws on the lower portion of the pump module bottom (back of the
module).
3
Loosen the single captive screw on the pump door.
4
Slide the pump door down; lift to reveal and access the monitor.
5
Lift and remove the monitor from the pump module; set aside the monitor.
6
Lift and remove the battery pack from inside the lower portion of the pump module.
Replacing the Battery Pack.
If inserting the Alkaline battery pack, follow steps 1-5.
If inserting the Extended Range Li-ion battery pack, follow step 5 ONLY.
33
1
To prepare the alkaline battery pack, unlatch and lift the hinged portion of the battery pack.
2
If needed, remove and set aside the spent batteries from within the pack.
3
Insert new batteries so that their negative contacts are in contact with the springs inside the pack.
DO NOT MIX BATTERY TYPES.
4
Close the latch. A click sounds.
5
To properly place the Extended Range Li-ion (or Alkaline) battery pack inside the pump module,
complete or observe the following:

the battery circuitry is exposed and faces the user;

a small groove at the back of the battery bottom fits over the small rib at the back of the pump
module bottom.
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
Reassembling the Aspirated Monitor.
1
Re-place the monitor inside the pump module. The monitor is display side up and its logo readable.
Its lower exposed bottom portion covers the battery.
2
Tighten the four screws on the pump module bottom to secure the module to the monitor.
3
Lower and close the pump door; slide up to click in place.
4
Tighten the pump door screw to secure the door in place.
5
Dispose of any spent batteries according to company policy.
Diffusion Monitor Battery Replacement or Changeover
The diffusion monitor can be used with all three Ventis MX4 battery packs.

The Li-ion battery kit is a single part consisting of the monitor’s lower case bottom and the battery. It is
removed from and attached to the diffusion monitor as a single item.

The Extended Range Li-ion battery pack and its cover are two distinct items.

The Alkaline battery pack consists of three items: the batteries, the battery pack, and a battery pack cover
(the same cover that holds the Extended Range Li-ion battery).
NOTE: When an Extended Range Li-ion (or Alkaline) battery pack is attached to a diffusion monitor, the monitor’s lower portion becomes
deeper than its upper portion. The Conversion Kit’s suspender clip components are used to make the upper and lower portions depthcompatible. The Conversion Kit provides a battery cover (battery not included), a suspender clip and spacer, and a screw and washer.
ATTACHING THE LI-ION BATTERY TO A DIFFUSION MONITOR.
Battery Replacement.
1
Power-off the monitor.
2
Loosen the four captive screws on the lower portion of the case bottom (or the battery cover if the
Extended Range Li-ion or Alkaline battery pack is attached).
3
Lift and remove the Li-ion kit (or Extended Range Li-ion battery Alkaline battery pack and cover); set
aside.
4
To properly attach the new Li-ion battery kit to the monitor, align its exterior charging contacts with
the monitor’s bottom.
5
Tighten the four captive screws to secure the battery pack to the monitor.
6
Dispose of any spent batteries according to company policy, or properly store any battery packs that
have a remaining life.
To changeover from an Extended Range Li-ion (or Alkaline) battery pack to a Li-ion battery continue with
the following suspender clip instruction sets.
Removal of the Suspender Clip and Spacer.
1
On the monitor’s case bottom, open the suspender clip.
2
Using a Phillips head screwdriver, remove the screw and washer that attach the suspender clip and
spacer to the monitor.
3
Set aside and store the removed items for future use with the Extended Range Li-ion (or Alkaline)
battery pack on a diffusion monitor.
Attachment of the Suspender Clip.
1
Open the suspender clip.
2
Place the washer on the screw (P/N 17139262).
3
Insert the screw with washer through the clip’s center hole and into the screw hole on the monitor.
4
Tighten the screw to secure the suspender clip to the monitor.
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ATTACHING THE EXTENDED RANGE LI-ION (OR ALKALINE) BATTERY PACK TO A DIFFUSION
MONITOR.
Battery Removal.
1
Power-off the monitor.
2
Loosen the four captive screws on the lower portion of the Case Bottom (back of the monitor.
3
Lift the battery unit to remove; set it aside.
Battery Attachment.
If inserting the Alkaline battery, follow steps 1-7.
If inserting the Extended Range Li-ion battery, follow steps 5-7 ONLY.
1
To prepare the Alkaline battery pack, unlatch and lift the hinged lid of the battery housing.
2
If needed, remove and set aside the spent batteries from within the housing.
3
Insert new batteries so that their negative contacts are in contact with the springs inside the housing.
DO NOT MIX BATTERY TYPES.
4
Close and latch the lid. A click sounds.
5
To properly place the Extended Range (or Alkaline) battery pack inside the battery cover ensure:

the battery circuitry is exposed and faces the user;

a small groove at the back of the battery bottom fits over the small rib at the back of the pump
module bottom.
6
To properly attach the cover (and its enclosed battery) to the monitor, ensure the battery contacts are
showing at the bottom of the monitor.
NOTE: each of the above battery packs easily fits within the battery cover. If the battery does not easily insert, stop to ensure
proper placement as noted above.
7
Tighten the four captive screws to secure the battery cover to the monitor.
To changeover from a Li-ion battery kit to an Extended Range Li-ion (or Alkaline) battery pack, continue with
the following suspender clip instruction sets.
Removal of the Suspender Clip.
1
Open the suspender clip.
2
Using a Phillips head screwdriver, remove the screw and washer that attach the clip to the monitor
3
Set aside and store the removed clip, washer, and screw for future use with a diffusion monitor and
Li-ion battery pack.
Attachment of the Suspender Clip and Spacer (from the Conversion Kit).
35
1
Place the monitor face down.
2
The spacer has one flat end. Place the spacer on the monitor’s case back so its flat end meets top
edge of the battery cover; the hole in the spacer aligns with the screw hole on the monitor.
3
Place the washer on the screw.
4
Insert the screw with washer through the clip’s hole and through the center hole on the clip back.
5
Place the clip on top of the spacer, inserting its screw into the spacer’s hole. Be sure the clip’s ring is
at the top of the monitor.
6
Grasp the clip and spacer with one hand. With the other hand, tighten the screw with the Phillips
screwdriver.
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Ventis™ MX4 Product Manual
MONITOR CONVERSION
To convert a diffusion monitor to an aspirated monitor, only the Extended Range Li-ion or Alkaline battery packs are
approved for use.
To convert an aspirated monitor to a diffusion monitor, a suspender clip, washer, and screw are recommended for
use with the Li-ion battery pack. If attaching the Extended Range Li-ion or Alkaline battery packs, the conversion kit is
required.
NOTE: When an Extended Range Li-ion (or Alkaline) battery pack is attached to a diffusion monitor, the monitor’s lower portion becomes
deeper than its upper portion. The Conversion Kit’s suspender clip components are used to make the upper and lower portions depthcompatible. The Conversion Kit provides a battery cover (battery not included), a suspender clip and spacer, and a screw and washer.
CONVERTING A DIFFUSION MONITOR TO AN ASPIRATED MONITOR.
Removing the Suspender Clip and Battery Pack.
1
Power-off the monitor.
2
On the monitor’s case bottom (back of the monitor), open the suspender clip.
3
Using a Phillips head screwdriver, remove the screw and washer that attach the suspender clip (and
spacer, if applicable) to the monitor. Set aside and store any removed, unused items for future use with
a diffusion monitor.
4
Loosen the four captive screws on the lower portion of the case bottom. Lift and remove the battery
pack (and cover, if applicable). Set aside and store any removed, unused items for future use with a
diffusion monitor.
Assembling the Aspirated Monitor (including battery insertion).
If inserting the Alkaline battery pack, follow steps 1-10.
If inserting the Extended Range Li-ion battery pack, follow steps 5-10 ONLY.
1
To prepare the Alkaline battery pack, unlatch and lift the hinged portion of the battery pack.
2
If needed, remove and set aside any spent batteries from within the pack.
3
Insert new batteries so that their negative contacts are in contact with the springs inside the pack. DO
NOT MIX BATTERY TYPES.
4
Close the latch. A click sounds.
5
To properly place the Extended Range Li-ion (or Alkaline) battery pack inside the pump module,
complete or observe the following:

the battery circuitry is exposed and faces the user;

a small groove at the back of the battery bottom fits over the small rib at the back of the pump
module bottom.
6
Loosen the captive screw on the front of the pump module. Slide the module’s door down and lift to
open.
7
Place the monitor inside the pump module. The monitor is display side up and its logo readable. Its
lower exposed bottom portion covers the battery.
8
Tighten the four screws on the pump module bottom to secure the module to the monitor.
9
Close the pump door; slide up to click in place.
10
Tighten the pump door screw.
CONVERTING AN ASPIRATED MONITOR TO A DIFFUSION MONITOR.
Removing the Pump Module.
1
Power-off the monitor.
2
Loosen the four captive screws on the lower portion of the pump module bottom (back of the module).
3
Loosen the single captive screw on the pump module door.
4
Slide the pump door down; lift to reveal and access the monitor.
5
Lift and remove the monitor from the pump module; set aside and store for future use.
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Choose OPTION 1 or OPTION 2 below depending on the battery pack to be attached.
OPTION 1: Attaching the Li-ion Battery Kit and its Compatible Suspender Clip Components.
1
To properly place the Li-ion battery kit, align its contacts with the monitor’s contacts, at the monitor
bottom.
2
To secure the battery kit to the monitor, tighten the four captive screws on the kit bottom.
3
Open the suspender clip.
4
Place the washer on the screw.
5
Insert the screw with washer through the clip’s center hole and into the screw hole on the monitor. Be
sure the clip’s ring is at the top of the monitor.
6
Tighten the screw.
OPTION 2: Attaching the Extended Range Li-ion (or Alkaline) Battery Pack and its Compatible
Suspender Clip Components.
If inserting the Alkaline battery pack, follow steps 1-14.
If inserting the Extended Range Li-ion battery pack, follow steps 5-14 ONLY.
1
To prepare the Alkaline battery pack, unlatch and lift the hinged portion of the battery pack.
2
If needed, remove and set aside any spent batteries from within the pack.
3
Insert new batteries so that their negative contacts are in contact with the springs inside the pack. DO
NOT MIX BATTERY TYPES.
4
Close the latch. A click sounds.
5
To properly place the Extended Range Li-ion (or Alkaline) battery pack inside the battery cover, ensure:

the battery circuitry is exposed and faces the user;

a small groove at the back of the battery bottom fits over the small rib at the back of the pump
module bottom.
NOTE: each of these two battery packs easily fits within the battery case. If the battery does not easily insert, stop to
ensure proper placement as noted above.
37
6
To properly attach the cover containing the Extended Range Li-ion or Alkaline battery pack, ensure the
battery contacts are showing at the bottom of the monitor.
7
To secure the battery cover (and its enclosed battery pack) to the monitor, tighten the four captive
screws on the battery cover.
8
Place the monitor face down.
9
The spacer for the suspender clip has one flat end. Place the spacer on the monitor’s case back so its
flat end meets top edge of the battery cover; the hole in the spacer aligns with the screw hole on the
monitor.
10
Open the suspender clip.
11
Place the washer on the screw.
12
Insert the screw with washer through the clip’s hole and through the center hole on the clip back.
13
Place the clip on top of the spacer, inserting its screw into the spacer’s hole and ensuring the clip’s ring
is at the top of the case back.
14
Grasp the clip and spacer with one hand. With the other hand, tighten the screw with the Phillips
screwdriver.
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
SENSOR, SENSOR BARRIER, LCD, AND VIBRATING MOTOR REPLACEMENT
Service instruction sets are provided below for each monitor type. Please choose, read, and then follow the
appropriate instruction set . Within each set of instructions, follow those relevant to the desired task(s) and note the
following.

The monitor has a two-part circuit board assembly, the main board and a smaller sensor board. They are
attached to one another with a connecter at the center of the sensor board.

The sensor barrier can be replaced as an assembly that fits in the monitor’s case top, or the full case top can be
replaced. NOTE: When a sensor is replaced, it is recommended that the sensor barrier/case top also be replaced. After reassembling the

monitor, a full calibration should be completed.
The LCD is removed and attached as a single component.
ASPIRATED
Disassembling the Monitor.
1
Power-off the monitor.
2
Loosen the four captive screws on the lower portion of the pump case module bottom (back of the
module).
3
Loosen the single captive screw on the pump case module top.
4
Slide the case door down; lift the hinged door to reveal and access the monitor.
5
Lift and remove the monitor from the pump module; set aside the module.
6
Place the monitor display side down.
7
Loosen the two captive screws on the upper portion of the case bottom.
8
Lift to separate the monitor case top from the monitor case bottom to reveal the circuit board
assembly.
9
Remove the circuit board assembly and set aside the monitor case top and bottom.
10
Separate the main circuit board from the sensor board.
Replacing the LCD (if needed).
1
Grasp the sides of the LCD and lift straight up to remove from the main circuit board.
2
To properly place the new LCD, align the pins on the LCD with their receptacles on the main circuit
board.
3
Gently press straight down and into place.
Replacing the Sensor(s) (if needed).
1
Identify the sensor to be removed.
2
Gently lift and remove the sensor.
3
To add the new sensor, align its pins or connector(s), with the respective receptacles on the sensor
board.
4
Press down. A slight click indicates the sensor is securely in place.
Reassembling the Circuit Board Assembly.
1
Re-attach the main circuit board to the sensor board, aligning their connectors.
2
Press. A slight click indicates the boards are securely attached.
Replacing the Sensor Barrier or Case Top (if needed).
To replace the sensor barrier on the inside of the case top, follow steps 1-5 below.
To replace the entire case top, skip to the instruction set, “Reassembling the Monitor”.
1
Observe the placement of the existing sensor barrier. Note that each cut-out is shaped to match the
sensor it protects.
2
Lift and remove the sensor barrier and gasket from inside the monitor case top. Ensure the entire
case top is free of adhesive; gently scrape, if needed. Wipe with a clean, dry, soft cloth or brush.
3
Lift the backing from the new sensor barrier assembly to reveal the adhesive.
4
Carefully position the new barrier. Each shaped opening matches the shape of the sensor it
protects. Press to attach to the inside of the case top.
© 2014 Industrial Scientific Corporation
38
Ventis™ MX4 Product Manual
Replacing the Vibrating Motor (if needed).
1
Place the monitor’s case top face down.
2
Lift the vibrating motor from its partition. The partition has two sections divided by a ridge. Discard
the used motor.
3
To properly place the new vibrating motor, its contact pins face the user and align with the left edge
of the partition. (The motor’s movable component fits within the small section of the partition.)
4
Press into place.
Reassembling the Monitor.
1
Re-place the board assembly into the monitor’s case bottom. The LCD faces the user.
2
Re-place the monitor’s case top (or place its new case top).
3
Tighten the two captive screws on the upper portion of the monitor case bottom.
4
Re-place the monitor inside the pump module. The monitor is display side up and its logo readable.
Its lower exposed bottom portion covers the battery.
5
Tighten the four screws on the pump module bottom to secure the module to the monitor.
6
Close the pump module door; slide up to click in place.
7
Tighten the pump door screw to secure.
8
Dispose of the used sensor(s) according to company policy.
9
Perform a full calibration following the addition or replacement of any sensor, or the replacement of
the sensor water barrier or monitor case top.
DIFFUSION
Disassembling the Monitor.
1
Power-off the monitor.
2
Loosen the four captive screws on the lower portion of the case bottom (back of the monitor) to
remove the battery pack. Set aside the battery kit (or pack and cover if applicable).
3
Loosen the two captive screws on the upper portion of the case bottom.
4
Lift to separate the case top from the case bottom.
5
Remove the circuit board assembly.
6
Separate the main circuit board from the sensor board.
Replacing the LCD (if needed).
1
Grasp the sides of the LCD and lift straight up to remove.
2
To properly position the new LCD, align the pins on the LCD with their receptacles on the main
circuit board.
3
Gently press straight down and into place.
Replacing the Sensor(s) (if needed).
1
Identify the sensor to be removed.
2
Gently lift and remove the sensor.
3
To add the new sensor, align its pins or connector(s), with the respective receptacles on the board.
4
Press down. A slight click indicates the sensor is securely in place.
Replacing the Sensor Barrier (if needed).
To replace the sensor barrier assembly, follow instruction 1-5 below.
To replace the entire case top, including its sensor barrier, skip to the next instruction set, “Reassembling
the circuit board assembly and monitor.”
1
39
Observe the placement of the existing water barrier. Note that each cut-out is shaped to match the
sensor it protects.
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
2
Lift and remove the sensor barrier and gasket from the inside the monitor case top. Ensure the
entire case top is free of adhesive; gently scrape, if needed. Wipe with a clean, dry, soft cloth or
brush.
3
Lift the backing from the new sensor barrier to reveal the adhesive.
4
Carefully position the new barrier. Each shaped opening matches the shape of the sensor it
protects. Press to attach to the inside of the case top.
Replacing the Vibrating Motor (if needed).
1
Place the monitor’s case top face down.
2
Lift the vibrating motor from its partition. The partition has two sections divided by a ridge. Discard
the used motor.
3
To properly place the new vibrating motor, its contact pins face the user and align with the left edge
of the partition. (The motor’s movable component fits within the small section of the partition.)
4
Press into place.
Reassembling the Circuit Board Assembly and Monitor.
1
Re-attach the main board to the sensor board, aligning their connectors.
2
Press. A slight click indicates the boards are securely attached.
3
Re-place the circuit board assembly into the monitor’s case bottom.
4
Re-place the monitor’s case top (or its new case top).
5
Tighten the two captive screws on the upper portion of the case bottom.
6
Re-place the battery pack and tighten the four captive screws on the case bottom.
7
Dispose of the used sensor(s) according to company policy.
8
Perform a full calibration following the addition or replacement of any sensor, or the replacement of
the sensor water barrier or the monitor case top.
PUMP MODULE
There are two field replaceable parts on the aspirated case: the water barrier and case top door. As needed, choose,
read, and follow the appropriate instruction set(s).
pump module
Pump Inlet Filter Cap and/or Water Barrier Replacement (if needed).
1
Power off the monitor.
2
To remove the pump inlet filter cap, turn counter clockwise; set aside.
3
Remove the water barrier from inside the inlet.
4
To properly place the new water barrier, its bottom will come into contact with the pump inlet surface on
which the barrier sits. The barrier’s bottom side has the smaller diameter opening in the black ring.
5
Re-place the pump inlet filter cap (or new cap); turn clockwise to tighten.
Pump Door Removal and Replacement (if needed).
1
Power off the monitor.
2
Loosen the single captive screw on the pump module door.
3
Slide the door down and lift.
4
The upper portion of the door has pegs on either side. The pegs fit into grooves where the door meets
the module; they flex slightly for easy door removal. Angle the door so that one peg moves to the bottom
of its groove and the other moves the top of its groove. Lift to unhinge the pegs and remove the door.
5
To properly place the new door, secure one of the pegs into its groove on the pump module.
6
Angle the door and press the other peg into its groove.
7
Close the door and slide up into place.
8
Tighten the single captive screw on the pump door.
© 2014 Industrial Scientific Corporation
40
Ventis™ MX4 Product Manual
VENTIS MX4 MONITOR THREE-DIMENSIONAL DIAGRAM
41
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
KEY FOR VENTIS MX4 MONITOR THREE-DIMENSIONAL DIAGRAM
Number
Part Number (P/N)
1
17152380-X
Description
Ventis MX4 Diffusion Case Top Assembly (includes items 2 and 3)
X = Case Color, where: 0 = Black, 1 = Orange
2
17152429
Sensor Barrier Assembly
3
17145285
Vibrating Motor
4
17150772
Ventis MX4 LCD Assembly
5
17134495
Ventis MX4 Sensor, Combustible Gas (LEL/CH4)
6
17134461
Ventis MX4 Sensor, Oxygen (O2)
7
17134487
Ventis MX4 Sensor, Carbon Monoxide (CO)
7
17155564
Ventis MX4 Sensor, Carbon Monoxide/Low Hydrogen Interference (CO/H2 Low)
8
17134479
Ventis MX4 Sensor, Hydrogen Sulfide (H2S)
9
17134503
Ventis MX4 Sensor, Nitrogen Dioxide (NO2)
10
17143595
Ventis MX4 Sensor, Sulfur Dioxide (SO2)
11
17147281
Captive Case Screw, Torx (torque value: 55 oz-in or .39 N.m +/- 10%)
11
17147273
Captive Case Screw, Phillips (torque value: 55 oz-in or .39
12
17152506
Suspender Clip Spacer
13
17120528
Suspender Clip
14
17153137
Locking Washer
15
17152507
N.m +/- 10%)
Screw, Phillips (for use with items 12, 13 and 14)
(torque value: 115 oz-in or .81 N.m +/- 10%)
16
17139262
17
17134453-XY
Screw, Phillips (torque value: 115
oz-in or .81 N.m +/- 10%)
Lithium-ion Battery Kit
X = Battery Cover Color, where: 0 = Black, 1 = Orange
(captive screw torque value: 55 oz-in or .39 N.m +/- 10%)
Y=1: UL, CSA, ATEX, IECEx, GOST-R, GOST-K, KOSHA, MED, and SANS approvals
Y=2: MSHA
Y=3: China Ex
Y=4: ANZEx
Y=5: INMETRO
18
17148313-Y
Extended Range Lithium-ion Battery Pack
Y=1: UL, CSA, ATEX, IECEx, INMETRO, GOST-R, GOST-K, KOSHA, MED, and SANS approvals
Y=2: MSHA
Y=3: China Ex
Y=4: ANZEx
19
17150608
Alkaline Battery Pack
UL, CSA, ATEX, IECEx, ANZEx, China MA, China KA, and INMETRO approvals (CSA, China MA, and
China KA approved for diffusion monitor only.)
20
17151184-XY
Cover, Extended Range Lithium-ion or Alkaline
X = Cover Color, where: 0 = Black, 1 = Orange
(captive screw torque value: 55 oz-in or .39 n.m . +/- 10%)
Y=1: UL, CSA, ATEX, IECEx, GOST-R, GOST-K, and KOSHA approvals
Y=2: MSHA (Extended Range Lithium-ion only)
Y=3: China Ex
Y=4: ANZEx
Y=5: INMETRO
Y=C: China KA
* Item is not user replaceable. The Ventis MX4 monitor must be sent to an authorized ISC Service Center for this item to be replaced.
© 2014 Industrial Scientific Corporation
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Ventis™ MX4 Product Manual
VENTIS MX4 PUMP MODULE THREE-DIMENSIONAL DIAGRAM
KEY FOR VENTIS MX4 PUMP MODULE THREE-DIMENSIONAL DIAGRAM
Number
Part Number (P/N)
1
17151150-X0
Description
Ventis MX4 Pump Door Assembly
X = Pump Door Assembly Color, where: 0 = Black, 1 = Orange
(captive screw torque value: 55 oz. in. or .39 n.m . +/- 10%)
2
17129909
Pump Inlet Filter Cap
2
17141581
Pump Inlet-Filter Cap for use 6’ extendable probe
2
17141599
Filter Cap, 1/8 NPT Female
3
17152395
Water Barrier
4
17151275
Screw, Torx (torque value: 55 oz-in or .39 N.m +/- 10%)
5
17052558
Screw (torque value: 25 oz-in or .17 N.m +/- 10%)
6
17148313-Y
Extended Range Lithium-ion Battery Pack
Y = Approval where:
1 = UL, CSA, ATEX, IECEx, INMETRO, GOST-R, GOST-K, and KOSHA
2 = MSHA
3 = China Ex
4 = ANZEx
7
43
17150608
Alkaline Battery Pack: UL, ATEX, IECEx, ANZEx, and INMETRO approvals
(CSA, China KA and China MA approved for diffusion monitor only.)
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
8
17151002
Captive Case Screw, Phillips (torque value: 55 oz-in or .39 N.m +/- 10%)
8
17151028
Captive Case Screw, Torx (torque value: 55 oz-in or .39 N.m +/- 10%)
9
17151010
Captive Case Screw, Phillips (torque value: 55 oz-in or .39 N.m +/- 10%)
9
17151036
Captive Case Screw, Torx (torque value: 55 oz-in or .39 N.m +/- 10%)
* Item is not user replaceable. The Ventis MX4 Pump Module must be sent to an authorized ISC Service Center for this item to be replaced.
►Products, Specifications, and Certifications
VENTIS MX4 ACCESSORIES AND PARTS
Docking and Calibration Stations
18108630-0BC
DS2 Docking Station™ for Ventis MX4
B = Quantity of iGas® Readers
C = Power Cord, where 0 = US, 1 = UK, 2 = EU, 3 = AUS, 4 = ITA, 5 = DEN, 6 = SWZ
18108631-AB
V•Cal ™ Calibration Station
A = Instrument Type, where 0 = Diffusion, 1 = Aspirated
B = Power Cord, where 0 = US, 1 = UK, 2 = EU, 3 = AUS, 4 = ITA, 5 = DEN, 6 = SWZ
Printer
18107763
Serial data dot matrix printer for V•Cal™ – 120 VAC powered
Chargers
18108191
Single-Unit Charger
18108209
Single-Unit Charger/Datalink
18108651
Single-Unit Automotive Charger, 12VDC
18108652
Single-Unit Truck-Mount Charger, 12VDC, with Cigarette Adapter
18108653
Single-Unit Truck-Mount Charger, 12VDC, Hard Wired
18108650-A
6-Unit Charger
Pumps
18108830
VTSP-ABCD
Ventis MX4 Hand Pump (manual bulb)
Ventis MX4 Pump Module*
A = Battery Type, where 0 = No Battery, 2 = Li-ion Extended Range Battery Pack, 3 = Alkaline Battery Pack
B = Color, where: 0 = Black, 1 = Orange
C = Approvals, where 1 = UL and CSA; 2 = ATEX, and IECEx,; 3=MSHA; 4= ANZEx; 5 = China EX; 7 = GOST-R and
GOST-K; 8 = KOSHA; 9 = INMETRO; and A = MED
D = Assembly Guide language, where: 1 = English, 2 = French, 3 = Spanish, 4 = German, 5 = Italian, 6 = Dutch, 7 =
Portuguese, 9 = Russian, A = Polish, B = Czech, C = Chinese, D = Danish, E = Norwegian, F = Finnish, G = Swedish
*Ventis MX4 Pump Module replacement parts
17151150-X0
Ventis MX4 Pump Door Assembly
X = Pump Door Assembly Color, where: 0 = Black, 1 = Orange
17129909
Pump Inlet Filter Cap
17152395
Water Barrier
17151275
Screw, Torx
17052558
Screw
17148313-Y
Extended Range Lithium-ion Battery Pack,
Y = Approvals where:
1 = UL, CSA, ATEX, IECEx, INMETRO, GOST-R, GOST-K, and KOSHA
2 = MSHA
3 = China Ex
4 = ANZEx
17151002
Captive Case Screw, Phillips
17151028
Captive Case Screw, Torx
© 2014 Industrial Scientific Corporation
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Ventis™ MX4 Product Manual
17151010
Captive Case Screw, Phillips
17151036
Captive Case Screw, Torx
17116096
Calibration Tubing Assembly with Integrated “T” Fitting (For use when calibrating a monitor
with pump using a positive flow regulator)
Carrying Cases
18108175
Ventis MX4 Diffusion Soft Carrying Case, Lithium-ion Battery (black)
18109150
Ventis MX4 Diffusion Soft Carrying Case, Lithium-ion Battery (orange)
18108183
Ventis MX4 Diffusion Soft Carrying Case, Extended Range Lithium-ion Battery or Alkaline
(black)
18109151
Ventis MX4 Diffusion Soft Carrying Case, Extended Range Lithium-ion Battery or Alkaline
(orange)
18108813
Ventis MX4 Diffusion Hard Carrying Case with Display, Lithium-ion Battery
18108814
Ventis MX4 Diffusion Hard Carrying Case with Display, Extended Range Lithium-ion Battery
or Alkaline
18108815
Ventis MX4 Diffusion Hard Carrying Case without Display, Lithium-ion Battery
18108816
Ventis MX4 Diffusion Hard Carrying Case without Display, Extended Range Lithium-ion
Battery or Alkaline
18108810
Ventis MX4 Aspirated Soft Carrying Case (black)
18109152
Ventis MX4 Aspirated Soft Carrying Case (orange)
18108811
Ventis MX4 Aspirated Hard Carrying Case with Display
18108812
Ventis MX4 Aspirated Hard Carrying Case without Display
Clip Assembly
17120528
Suspender Clip (for diffusion monitor with Lithium-ion Battery Pack)
17139262
Clip screw and washer (for diffusion monitor with Lithium-ion Battery Pack)
Sensors, Sensor Barrier, Vibrating Motor, LCD, and Calibration Cup
17134495
Ventis MX4 Sensor, Combustible Gas (LEL/CH4)
17134461
Ventis MX4 Sensor, Oxygen (O2)
17134487
Ventis MX4 Sensor, Carbon Monoxide (CO)
17155564
Ventis MX4 Sensor, Carbon Monoxide/Low Hydrogen Interference (CO/H2 Low)
17134479
Ventis MX4 Sensor, Hydrogen Sulfide (H2S)
17134503
Ventis MX4 Sensor, Nitrogen Dioxide (NO2)
17143595
Ventis MX4 Sensor, Sulfur Dioxide (SO2)
17152380-X
Diffusion Case Top Assembly (includes Sensor Barrier Assembly)
X = Case Top Color, where: 0 = Black, 1 = Orange
17152429
Sensor Barrier Assembly
17145285
Vibrating Motor
17150772
Ventis MX4 LCD Assembly
17156189
Ventis Calibration Cup Assembly, calibration cup with tubing
17152455
Ventis Calibration Cup
Battery Packs and Components
17134453-XY
Lithium-ion Battery Kit
X = Battery Cover Color, where: 0 = Black, 1 = Orange
(captive screw torque value: 55 oz-in or .39 N.m +/- 10%)
Y = Approvals where:
1 = UL, CSA, ATEX, IECEx, GOST-R, GOST-K, KOSHA, MED, and SANS
2 = MSHA
3 = China Ex
4 = ANZEx
45
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
5 = INMETRO
17148313-Y
Extended Range Lithium-ion Battery Pack
Y = Approvals where:
1 = UL, CSA, ATEX, IECEx, INMETRO, GOST-R, GOST-K, KOSHA, MED, and SANS
2 = MSHA
3 = China Ex
4 = ANZEx
17150608
Alkaline Battery Pack: UL, ATEX, IECEx, ANZEx, and INMETRO approvals (CSA, China KA
and China MA approved for diffusion monitor only.)
Conversion Kit** for the diffusion monitor.
NOTE: For use in converting an aspirated monitor with a rechargeable Extended Range Lithium-ion battery pack to a diffusion monitor with a
rechargeable Extended Range Lithium-ion (or Alkaline) Battery Pack. (Batteries sold separately.) Kit parts listed below can be ordered separately as
replacement parts.
**17151184-XY
Cover, Extended Range Lithium-ion or Alkaline
X = Cover Color, where: 0 = Black, 1 = Orange
(captive screw torque value: 55 oz-in or .39 n.m . +/- 10%)
Y = Approvals where:
1 = UL, CSA, ATEX, IECEx, GOST-R, GOST-K, and KOSHA; MED (Lithium-ion only)
2 = MSHA (Extended Range Lithium-ion only)
3 = China Ex
4 = ANZEx
5 = INMETRO
C = China KA
**17152506
Suspender Clip Spacer
**17120528
Suspender Clip
**17153137
Locking Washer
** 17152507
Screw, Phillips
MONITOR SPECIFICATIONS
Item
Description
Display
Backlit Liquid Crystal Display (LCD)
Buttons
Two (ON/OFF/MODE and ENTER)
Monitor case
Polycarbonate with ESD protective rubber overmold
Alarms
Ultra-bright LEDs, loud audible alarm (95dB at 30 cm), and vibrating alarm
Size and Weight
Diffusion with Lithium-ion (typical)
Aspirated with Extended Range
Lithium-ion (typical)
Size
103 mm x 58 mm x 30 mm
(4.1” x 2.3” x 1.2”)
172 mm x 67 mm x 66 mm
(6.8” x 2.6” x 2.6”)
Weight
182 g (6.4 oz)
380 g (13.4 oz)
OPERATING CONDITIONS
Warm-up time
40 seconds (includes stabilization time)
Temperature range
-20 °C to +50 °C (-4 °F to +122 °F)
Humidity range
15–95% relative humidity (RH) noncondensing (during continuous operation)
Pressure range
1 atm ±20%
© 2014 Industrial Scientific Corporation
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Ventis™ MX4 Product Manual
STORAGE CONDITIONS
Temperature range
0−25 ºC (32−77 ºF)
Humidity range
40–70% relative humidity (RH) noncondensing
Pressure range
0.9–1.1 atm
Maximum time
Up to 6 months
Note: Industrial Scientific recommends that infrequently used lithium-ion batteries be
fully charged every four months.
SENSOR SPECIFICATIONS
Gas Name
Abbr.
Measuring
Range
Resolution
Accuracy at Time and Response
Temperature of
Time
Calibration*
(typical)
T50
Response
Time
(typical)
T90
Oxygen
O2
0–30% vol
0.1% vol
± 0.5%
15
30
Carbon Monoxide
with low H2
interference
CO/H2
Low
0–1000 ppm
1 ppm
± 5% (0-300 ppm)
± 15% (301-1000 ppm)
8
17
Carbon Monoxide
CO
0–1000 ppm
1 ppm
± 5%
15
50
Hydrogen Sulfide
H2 S
0–500 ppm
0.1 ppm
± 5%
15
30
Nitrogen Dioxide
NO2
0–150 ppm
0.1 ppm
± 10%
10
30
Sulfur Dioxide
SO2
0–150 ppm
0.1 ppm
± 10%
20
80
Combustible
LEL
0–100% LEL
1% LEL
± 5%
15
35
Methane
CH4
0–5% vol
0.01% vol
± 5%
15
35
*The accuracy specification for each sensor is ± the stated percentage or 1 unit of resolution, whichever is greater.
TOXIC GAS SENSOR CROSS-SENSITIVITY TABLE
Target Gas
CO
Sensor
CO
CO
(H2
Low)
H2S
SO2
NO2
Cl2
ClO2
HCN
HCl
PH3
NO
H2
NH3
100
100
1
1
0
0
0
0
0
0
0
20
0
H2S
5
5
100
1
-40
-3
-25
10
300
25
10
20
25
SO2
0
5
5
100
0
0
0
—
40
—
0
0
-40
NO2
-5
5
-25
-165
100
45
—
-70
—
—
30
0
-10
Cl2
-10
0
-20
-25
10
100
60
-20
6
-20
0
0
-50
ClO2
—
—
—
—
—
20
100
—
—
—
—
—
—
HCN
15
—
10
50
1
0
0
100
35
1
0
30
5
HCl
3
—
0
5
0
2
0
0
100
0
15
0
0
PH3
—
—
—
—
—
—
-100
425
300
100
—
—
—
NO
25
40
1
1
5
—
—
-5
—
—
100
30
0
H2
22
3
0.3
0.5
0
0
0
0
0
0
0
100
0
NH3
0
0
0
0
0
0
0
0
0
0
0
0
100
47
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
The Sensor Cross Sensitivity Table (above) reflects the percentage response provided by the sensor (top row) when
exposed to a known concentration of the target gas (column 1).
The numbers were measured under these environmental conditions: 20 °C (68 °F) , 50% RH and 1 atm.
The specified cross-interference numbers apply to new sensors only, and may vary with time as well as from sensor
to sensor.
“—” means no data available.
This table is given as a reference only and is subject to change.
LEL AND LEL CORRELATION FACTORS FOR COMBUSTIBLE GASES
Sample gas*
LEL
(% vol)
LEL correlation factors
Calibration gas
Butane
Hexane
Hydrogen
Methane
Pentane
Propane
Acetone
2.5%
1.00
0.70
1.70
1.70
0.90
1.10
Acetylene
2.5%
0.70
0.60
1.30
1.30
0.70
0.80
Benzene
1.2%
1.10
0.80
1.90
1.90
1.00
1.20
Butane
1.9%
1.00
0.58
1.78
1.67
0.83
1.03
Ethane
3.0%
0.80
0.60
1.30
1.30
0.70
0.80
Ethanol
3.3%
0.89
0.52
1.59
1.49
0.74
0.92
Ethylene
2.7%
0.80
0.60
1.40
1.30
0.70
0.90
Hexane
1.1%
1.71
1.00
3.04
2.86
1.42
1.77
Hydrogen
4.0%
0.56
0.33
1.00
0.94
0.47
0.58
Isopropanol
2.0%
1.10
0.90
2.00
1.90
1.00
1.20
Methane
5.0%
0.60
0.35
1.06
1.00
0.50
0.62
Methanol
6.0%
0.60
0.50
1.10
1.10
0.60
0.70
Nonane
0.8%
2.22
1.30
3.95
3.71
1.84
2.29
Pentane
1.4%
1.21
0.71
2.15
2.02
1.00
1.25
Propane
2.1%
0.97
0.57
1.72
1.62
0.80
1.00
Styrene
0.9%
1.30
1.00
2.20
2.20
1.10
1.40
Toluene
1.1%
1.53
0.89
2.71
2.55
1.26
1.57
Xylene
1.1%
1.50
1.10
2.60
2.50
1.30
1.60
JP-4
—
—
—
—
—
1.20
—
JP-5
—
—
—
—
—
0.90
—
JP-8
—
—
—
—
—
1.50
—
NOTE: The table above provides the LEL for select combustible gases*. It also provides correlation factors that help the safety
technician and instrument operator determine the actual percentage LEL when the sample gas differs from the gas that was used to
calibrate the unit.
For example, if the unit reads 10% LEL in a pentane atmosphere, and was calibrated to methane, the actual percentage LEL is
determined as follows:
1.
Locate the table cell where the sample gas (pentane) intersects with the calibration gas (methane).
2.
Multiply the cell's value (2.02) by the unit's LEL reading (10%) to calculate the actual concentration of 20.2% LEL.
* The combustible gas list is not a comprehensive list of all combustible gases that can be detected by the Ventis MX4. For
additional information about combustible gas detection and the Ventis MX4, contact the ISC Technical Service department.
© 2014 Industrial Scientific Corporation
48
Ventis™ MX4 Product Manual
CERTIFICATIONS
Directive/Code
Certification Marking
ATEX
Ex ia IIC T4 Ga and Ex ia I Ma;
Equipment Group and Category II 1G and I M1;
IP66; IP67
ANZEx Ex ia s Zone 0 I/IIC T4; IP66; IP67
China Ex
Ex ia IIC T4 Ga
China CMC
Metrology Approval
China MA
Approved for Underground Mines; diffusion (without pump) alkaline version
only
CSA
Class I, Division 1, Groups A B C D, T4; Ex d ia IIC T4
C22.2 No. 152 for %LEL reading only
GOST – R and GOST - K
PBExdiaI X and 1ExdiaIICT4 X
IECEx
Ex ia IIC T4 Ga; IP66; IP67
INMETRO
Ex ia IIC T4 Ga; IP66; IP67
-20°C ≤ Ta ≤ +50 °C
KOSHA
Ex d ia IIC T4
MED
Portable Multigas Detector; Category 2 (MED 2012/32/EU); Li-Ion only
Charger/Docking Station accessories; category 1
MSHA
Permissible for Underground Mines; li-ion versions only
SANS-1515
SANS 1515-1
Type A; Ex ia I/IIC T4 IP66/67; Li-Ion only
UL
Class I, Division 1, Groups A B C D, T4; Zone 0, AEx ia IIC T4
Class II, Groups F G (Carbonaceous and Grain Dust);
Class I, Zone 0, AEx ia IIC T4
IP66 ; IP67
Marking Requirements
ATEX Markings
IECEx Markings
Industrial Scientific Corp.
15071 USA
VENTIS MX4
DEMKO 10 ATEX 1006410
Ex ia IIC T4 Ga / Ex ia I Ma IP 66/67
o
o
-20 C ≤ Ta ≤ +50 C
[Serial Number] [Month/Year of Production]
Charging contact parameters: Um = 6.2V; Ii = 1.3A
EN 60079-29-1; EN 50104
Industrial Scientific Corp.
15071 USA
VENTIS MX4
IECEx UL10.0034
Ex ia IIC T4 Ga IP 66/67
o
o
-20 C ≤ Ta ≤ +50 C
[Serial Number] [Month/Year of Production]
Charging contact parameters: Um = 6.2V; Ii = 1.3A
Diffusion Version:
Warning: Do not recharge or replace battery in hazardous
locations. Replace only with P/N 17148313-1, P/N
17134453-X1, or P/N 17050608
Aspirated Version:
Warning: Do not recharge or replace battery in hazardous
locations. Replace only with P/N 17148313-1 or P/N 17050608
Li-Ion Battery Packs, P/N 17148313-1 or P/N 17134453-X1
Warning: Only charge instrument in non-hazardous
locations. Charging contact parameters: Um = 6.2V; Ii =
1.3A; Do Not Connect in Hazardous Locations
Alkaline Battery Pack, P/N 17150608
Warning: Only replace batteries in non-hazardous locations;
Only approved for use with three (3) AAA battery types Duracell
MN2400 and Energizer EN92. Replace all batteries at the same
time.
Warning: Read and understand manual before use.
Warning: Read and understand manual before use.
49
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
►Warranty
Industrial Scientific Corporation's Ventis MX4 portable gas monitors are warranted to be free from defects in material and workmanship for
a period of two years after purchase. This warranty includes the sensors, the pump, and the lithium-ion battery pack as shipped with the
Ventis MX4.
Filters are warranted to be free from defects in material and workmanship for 18 months from date of shipment, or one year from
date of first use, whichever occurs first, except where otherwise stated in writing in Industrial Scientific literature.
LIMITATION OF LIABILITY
INDUSTRIAL SCIENTIFIC MAKES NO OTHER WARRANTIES, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT
LIMITED TO THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR PARTICULAR PURPOSE.
SHOULD THE PRODUCT FAIL TO CONFORM TO THE ABOVE WARRANTY, BUYER’S ONLY REMEDY AND INDUSTRIAL
SCIENTIFIC’S ONLY OBLIGATION SHALL BE, AT INDUSTRIAL SCIENTIFIC’S SOLE OPTION, REPLACEMENT OR REPAIR OF
SUCH NON-CONFORMING GOODS OR REFUND OF THE ORIGINAL PURCHASE PRICE OF THE NON-CONFORMING
GOODS.
IN NO EVENT WILL INDUSTRIAL SCIENTIFIC BE LIABLE FOR ANY OTHER SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, INCLUDING LOSS OF PROFIT OR LOSS OF USE, ARISING OUT OF THE SALE, MANUFACTURE, OR USE OF
ANY PRODUCTS SOLD HEREUNDER WHETHER SUCH CLAIM IS PLEADED IN CONTRACT OR IN TORT, INCLUDING
STRICT LIABILITY IN TORT.
It shall be an express condition to Industrial Scientific’s warranty that all products be carefully inspected for damage by Buyer upon
receipt, be properly calibrated for Buyer’s particular use, and be used, repaired, and maintained in strict accordance with the
instructions set forth in Industrial Scientific’s product literature. Repair or maintenance by non-qualified personnel will invalidate the
warranty, as will the use of non-approved consumables or spare parts. As with any other sophisticated product, it is essential and a
condition of Industrial Scientific’s warranty that all personnel using the products be fully acquainted with their use, capabilities, and
limitations as set forth in the applicable product literature.
Buyer acknowledges that it alone has determined the intended purpose and suitability of the goods purchased. It is expressly
agreed by the parties that any technical or other advice given by Industrial Scientific with respect to the use of the goods or services
is given without charge and at Buyer’s risk; therefore, Industrial Scientific assumes no obligations or liability for the advice given or
results obtained.
© 2014 Industrial Scientific Corporation
50
Ventis™ MX4 Product Manual
51
© 2014 Industrial Scientific Corporation
Ventis™ MX4 Product Manual
►Ventis MX4 Resource Center
Product documentation.
Online training.
And more!
www.indsci.com/ventis
Global Locations
Americas
USA
Corporate Headquarters
1001 Oakdale Road
Oakdale, PA 15071-1500
USA
Phone: +1 412-788-4353
1-800-DETECTS (338-3287)
e-mail: [email protected]
Canada
Phone: +780-467-2423
e-mail: [email protected]
Europe/Middle East/Africa
France
Phone: +00 800 WORKSAFE
+33-157329261
e-mail: [email protected]
Germany
Phone: +49-69299571416
e-mail: [email protected]
Czech Republic
Phone: +420 234 622 222
e-mail: [email protected]
United Arab Emirates
Phone: +971 50 455 8518
e-mail: [email protected]
England
Phone: +44 12 80 70 61 14
e-mail: [email protected]
Asia Pacific/China
People's Republic of China
Phone: +86 21 5899 3279
+86 400 820 2515
e-mail: [email protected]
Singapore
Phone: +65 6561 7377
e-mail: [email protected]
Australia
Phone: +03 96447777
e-mail: [email protected]
© 2014 Industrial Scientific Corporation
52
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