3M GMI PS200-LMP Manual

64171LMP, Rev. 1/February 2019
3M™ GMI™ PS200-LMP PORTABLE GAS MONITOR
OPERATIONS & MAINTENANCE MANUAL
WARNING: ALL INDIVIDUALS WHO HAVE OR WILL HAVE RESPONSIBILITY FOR
USING, MAINTAINING, OR SERVICING THIS PRODUCT MUST READ THIS
ENTIRE MANUAL CAREFULLY. FAILURE TO USE THIS EQUIPMENT
PROPERLY COULD RESULT IN SERIOUS INJURY OR DEATH.
3M™ GMI™ PS200-LMP PORTABLE GAS MONITOR
OPERATIONS & MAINTENANCE MANUAL 64171LMP Rev. 1

64171LMP, Rev. 1/February 2019
3M™ GMI™ PS200-LMP PORTABLE GAS MONITOR
OPERATIONS & MAINTENANCE MANUAL
ii
Copyright © 3M™ GMI™, February 2019
The information contained within is for use only with the 3M™ GMI™ PS200-LMP Portable Gas
Monitor. Reproduction, in whole or in part, including utilization in machines capable of reproduc-
tion or retrieval without written permission of 3M™ GMI™ is prohibited.
REVISION HISTORY
Rev.
No. Revision Date Reason
A February 2019 Initial release

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LEGAL STATMENT
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DESCRIPTION
This Operations & Maintenance (O&M) Manual provides operation and maintenance information for
use only with the 3M™ GMI™ PS200-LMP Portable Gas Monitor (or “the monitor”). Reverse engi-
neering is not permitted.
LIABILITY
Every care has been taken in the preparation of this O&M manual, but 3M™ and GMI™ do not
accept any responsibility for errors or omissions and their consequences. Information in this O&M
manual is subject to change without notice. This O&M manual does not constitute a specification or
basis for a contract. Your statutory rights under law are not affected.
MODIFICATION NOTICES
3M™ GMI™ aim to notify customers of relevant changes in the product operation and maintain this
O&M manual up to date. In view of the policy of continuous product improvement, there may be
operational differences between the latest product and this O&M manual.
This O&M manual is an important part of the monitor.
Please note the following points:
• It should be referred to for the life of the product;
• Although every care is taken in the preparation of this O&M manual, it does not constitute a
specification for the monitor.
SOFTWARE
Software supplied on micro-controller or similar device for use in a particular product may only be
used in that product and may not be copied without the written permission of 3M™ GMI™. Repro-
duction or disassembly of such embodied programs or algorithms is prohibited. Ownership of such
software is not transferable, and 3M™ GMI™ does not warrant that the operation of the software
will be error free or that the software will meet the customer’s requirements.
DISPOSAL ADVICE
When no longer in use, dispose of the monitor carefully and with respect for the environment. 3M™
GMI™ will dispose of the monitor without charge if the monitor is returned to 3M™ GMI™.
AREAS OF USE
Exposure to certain chemicals can result in a loss of sensitivity of the flammable sensor. Where such
environments are known or suspected it is recommended that more frequent response checks are
carried out. Chemical compounds that can cause loss of sensitivity include silicones, lead, halogens
and sulphur.
Do not use monitor in potentially hazardous atmospheres containing greater than 21% oxygen.
SPECIAL CONDITIONS OF USE
The monitor is designed for use in harsh environments. The monitor is sealed to IP67 and, if not sub-
jected to misuse or malicious damage, will provide many years of reliable service.
The monitor contains a carbon monoxide (CO) electrochemical sensor. Under conditions of pro-
longed storage this sensor should be removed. The sensor contains potentially corrosive liquid and
care should be taken when handling or disposing, particularly when a leak is suspected.

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WARRANTY STATEMENT
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WARRANTY
The GMI PS200-LMP monitor has a standard warranty of 2 years against faulty mechanical and
electronic parts, e.g. pump, sensors, battery, flexi-PCB etc, provided that any service or calibration
work has been carried out by the manufacturer or authorized agent.
The warranty does not include monitor or probe filters or damage caused by misuse (e.g. mechanical
impact or water ingress).
For further details, please contact 3M™ GMI™.

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TABLE OF CONTENTS
Sect. # Section Title Page #
1. ABOUT THIS GUIDE............................................................................................................................ 1-1
1.1. Guide Conventions ........................................................................................................................... 1-1
1.2. Certifications and Approvals.........................................................................................................1-2
1.3. Performance........................................................................................................................................1-2
1.4. General Safety Information............................................................................................................1-2
1.5. Warnings and Cautions .................................................................................................................. 1-3
2. INTRODUCTION...................................................................................................................................2-1
2.1. General Description..........................................................................................................................2-1
2.1.1. FEATURES .......................................................................................................................................2-2
2.2. Data Logging......................................................................................................................................2-2
2.3. Filters....................................................................................................................................................2-2
2.4. Construction ......................................................................................................................................2-2
2.5. Identification Label ..........................................................................................................................2-2
2.6. Toxic Cell Integrity...........................................................................................................................2-2
3. OPERATION.......................................................................................................................................... 3-1
3.1. Operating Procedure....................................................................................................................... 3-1
3.2. Switching the Monitor On.............................................................................................................3-2
3.2.1. INSTRUMENT IDENTIFICATION............................................................................................3-2
3.2.2. FILTER CHECK/FLOW FAULT TEST (DAILY CHECK ONLY).......................................3-2
3.2.3. DATE AND TIME.......................................................................................................................... 3-4
3.2.4. CALIBRATION DUE DATE........................................................................................................ 3-4
3.2.5. SENSOR CONFIRMATION CHECK ...................................................................................... 3-4
3.2.6. ENTER BIN ..................................................................................................................................... 3-6
3.2.7. MEMORY FAULT......................................................................................................................... 3-6
3.3. Battery Status ................................................................................................................................... 3-6
3.4. Switch the Display Backlight On/Off ........................................................................................3-7
3.5. Datalogging........................................................................................................................................3-7
3.5.1. TIMED LOGS..................................................................................................................................3-7
3.5.2. SESSION LOGS .............................................................................................................................3-7
3.5.3. CALIBRATION LOGS ..................................................................................................................3-7
3.5.4. DATALOGGING CAPACITY/DATE FORMAT ...................................................................3-7
3.5.5. DATALOGGING EXTRACTION .............................................................................................. 3-8
3.6. View Maximum Recorded Values Since Switch ON ........................................................... 3-8
3.7. Alarms Reset or Acknowledge.................................................................................................... 3-8
3.7.1. CONFIDENCE SIGNAL.............................................................................................................. 3-9
3.8. Probe Connection and Use .......................................................................................................... 3-9
3.9. Switching the Instrument OFF...................................................................................................3-10
3.10. Modes .................................................................................................................................................3-11

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Sect. # Section Title Page #
3.10.1. BUILDING IDENTIFICATION NUMBER (BIN).................................................................... 3-11
3.10.2. DISPLAY ......................................................................................................................................... 3-11
4. INSPECT MODE...................................................................................................................................4-1
4.1. General.................................................................................................................................................4-1
4.2. Button Functions...............................................................................................................................4-1
4.3. Operation.............................................................................................................................................4-1
4.3.1. RANGE ..............................................................................................................................................4-1
4.3.2. ALARMS ...........................................................................................................................................4-1
4.3.3. PUMP................................................................................................................................................4-2
4.3.4. MAXIMUM GAS VALUES.......................................................................................................... 4-2
4.3.5. DATALOGGING............................................................................................................................ 4-2
5. PERSONAL SURVEYOR (PS) MODE .............................................................................................5-1
5.1. General.................................................................................................................................................5-1
5.2. Button Functions...............................................................................................................................5-1
5.3. Operation.............................................................................................................................................5-1
5.3.1. RANGE ..............................................................................................................................................5-1
5.3.2. ALARMS ...........................................................................................................................................5-1
5.3.3. PUMP.................................................................................................................................................5-1
5.3.4. MAXIMUM GAS VALUES...........................................................................................................5-1
5.3.5. DATALOGGING............................................................................................................................5-2
6. PURGE MODE.......................................................................................................................................6-1
6.1. General.................................................................................................................................................6-1
6.2. Button Function.................................................................................................................................6-1
6.3. Operation.............................................................................................................................................6-1
6.3.1. RANGE ..............................................................................................................................................6-1
6.3.2. ALARMS ...........................................................................................................................................6-1
6.3.3. PUMP.................................................................................................................................................6-1
6.3.4. MAXIMUM GAS VALUES...........................................................................................................6-1
6.3.5. DATALOGGING............................................................................................................................6-2
7. BLUETOOTH.......................................................................................................................................... 7-1
7.1. General................................................................................................................................................. 7-1
7.2. Bluetooth (BT) Connection ............................................................................................................ 7-1
7.2.1. ESTABLISHING BLUETOOTH COMMUNICATIONS ....................................................... 7-1
8. RECHARGING THE BATTERIES .....................................................................................................8-1
8.1. General.................................................................................................................................................8-1
8.2. Recharge Monitor Using the Charging/Comms Clip ...........................................................8-1
9. OPERATOR MAINTENANCE...........................................................................................................9-1
9.1. Cleaning...............................................................................................................................................9-1
9.2. Replace Instrument Filters.............................................................................................................9-1
9.2.1. HYDROPHOBIC FILTER REPLACEMENT.............................................................................9-1

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Sect. # Section Title Page #
9.2.2. SAMPLE INLET (DUST) FILTER REPLACEMENT.............................................................. 9-2
9.3. Replace Probe Filters ..................................................................................................................... 9-3
10. CALIBRATION.....................................................................................................................................10-1
10.1. General Description .......................................................................................................................10-1
10.2. Automatic Calibration ...................................................................................................................10-1
10.3. Calibration Validity .........................................................................................................................10-1
11. ACCESSORIES .....................................................................................................................................11-1
A. TYPICAL OPERATING PARAMETERS.........................................................................................A-1
B. CONFIGURATION MENU MODE.................................................................................................. B-1
B.1. Accessing the Configuration Menu Mode............................................................................... B-1
B.2. Configuration Menu Screen ......................................................................................................... B-1
B.2.1. Normal ..............................................................................................................................................B-2
B.2.2. Clock .................................................................................................................................................B-2
C. TECHNICAL SUPPORT .....................................................................................................................C-1

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LIST OF FIGURES
Fig. # Figure Title Page #
2-1 PS200-LMP Portable Gas Detector...........................................................................................2-1
3-1 Function Buttons...............................................................................................................................3-1
3-2 Flash Screen ......................................................................................................................................3-2
3-3 Monitor Identification Display.....................................................................................................3-2
3-4 Filter Check .......................................................................................................................................3-3
3-5 Flow Fault Test .................................................................................................................................3-3
3-6 Date and Time...................................................................................................................................3-4
3-7 Calibration Due Date ......................................................................................................................3-4
3-8 Calibration Overdue .......................................................................................................................3-4
3-9 Sensor Check Displays ..................................................................................................................3-5
3-10 Failed Sensor.....................................................................................................................................3-5
3-11 Acknowledge Alarm .......................................................................................................................3-5
3-12 BIN Screen .........................................................................................................................................3-6
3-13 Memory Fault....................................................................................................................................3-6
3-14 Battery Status....................................................................................................................................3-6
3-15 Maximum Gas Values - % VOL ...................................................................................................3-8
3-16 Maximum Gas Values - PPM CO................................................................................................3-8
3-17 Alarm Screen.....................................................................................................................................3-9
3-18 Sample Line Connected to Monitor ..........................................................................................3-9
3-19 Pump Symbol Displayed ............................................................................................................. 3-10
3-20 Switch OFF ......................................................................................................................................3-10
3-21 BIN Screen ........................................................................................................................................ 3-11
3-22 Display............................................................................................................................................... 3-12
4-1 INSPT Mode .......................................................................................................................................4-1
4-2 Maximum Gas Values..................................................................................................................... 4-2
4-2 Datalogging Indicator..................................................................................................................... 4-2
5-1 PS Mode ..............................................................................................................................................5-1
5-2 Maximum Gas Values.....................................................................................................................5-2
5-3 Datalogging Indicator.....................................................................................................................5-2
6-1 PURGE Mode .....................................................................................................................................6-1
6-2 Maximum Gas Values.....................................................................................................................6-2
6-3 Datalogging Indicator.....................................................................................................................6-2
7-1 Completed Inspections Ready to be Transferred.................................................................. 7-1
7-2 Bluetooth Connection Notification............................................................................................. 7-1
7-3 Bluetooth Connection Notification, cont................................................................................. 7-2
7-4 Bluetooth Connection to Smart Phone..................................................................................... 7-2
8-1 Charging/Comms Clip Connection............................................................................................8-1
8-2 Connect Cable to Charging/Comms Clip...............................................................................8-2

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Fig. # Figure Title Page #
8-3 Connect Cable to USB Power Adapter.................................................................................... 8-2
9-1 Hydrophobic Filter Replacement................................................................................................ 9-1
9-2 Sample Inlet (Dust) Filter Replacement ................................................................................... 9-2
9-3 Probe Filters Replacement........................................................................................................... 9-3
10-1 PS200-LMP Auto/Bump Calibration Station ........................................................................10-1
B-1 Menu Screen...................................................................................................................................... B-1
B-2 EDIT DATE AND TIME Screen ....................................................................................................B-2

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LIST OF TABLES
Table # Table Title Page #
1-1 Certifications and Approvals ........................................................................................................1-2
4-1 INSPT Mode Key Features ............................................................................................................4-1
4-2 Button Function.................................................................................................................................4-1
5-1 PS Mode Key Features....................................................................................................................5-1
5-2 Button Function.................................................................................................................................5-1
6-1 PURGE Mode Key Features ..........................................................................................................6-1
6-2 Button Function................................................................................................................................6-2
11-1 Instrument .......................................................................................................................................... 11-1
11-2 Spare Parts - Instrument................................................................................................................ 11-1
11-3 Spare Parts - Probe ......................................................................................................................... 11-1
11-4 Spare Parts - Instrument Accessories....................................................................................... 11-1
11-5 Charging Accessories .................................................................................................................... 11-1
11-6 Automatic Bump & Calibration Accessory (ABC)................................................................ 11-2
A-1 Typical Operating Parameters..................................................................................................... A-1

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ABOUT THIS GUIDE
1-1
1. ABOUT THIS GUIDE
This guide instructs gas detection personnel on the features and usage of the PS200-LMP Gas Mon-
itor (or “the monitor”), including information on configuration, operation, maintenance, specifications
and troubleshooting.
This user guide assumes the reader has a basic knowledge of gas detection procedures.
The user guide is divided into the following topics:
•2. INTRODUCTION
•3. OPERATION
•4. INSPECT MODE
•5. PERSONAL SURVEYOR (PS) MODE
•6. PURGE MODE
•7. BLUETOOTH
•8. RECHARGING THE BATTERIES
•9. OPERATOR MAINTENANCE
•10. CALIBRATION
•11. ACCESSORIES
•APPENDIX A. TYPICAL OPERATING PARAMETERS
•APPENDIX B. CONFIGURATION MENU MODE
•APPENDIX C. TECHNICAL SUPPORT
1.1. Guide Conventions
The following visual elements are used throughout this guide, where applicable:
WARNING: THIS ICON AND TEXT INDICATE A POTENTIALLY HAZARDOUS
SITUATION, WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH OR
INJURY.
CAUTION: This icon and text indicate an action or situation, which, if not avoided, could
result in damage to the equipment.
NOTE: This icon and text designates information of special note.
WARNING: READ, UNDERSTAND AND FOLLOW THE ENTIRE CONTENT OF THIS
GUIDE PRIOR TO USE. FAILURE TO DO SO MAY RESULT IN SERIOUS
INJURY OR DEATH.

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ABOUT THIS GUIDE
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1.2. Certifications and Approvals
The monitor has been tested and complies with the following:
1.3. Performance
This apparatus conforms to ANSI/ISA S12.13.01 - 2000 (Combustible)
1.4. General Safety Information
3M™ GMI™ can take no responsibility for use of its equipment if it is not used in accordance with
these instructions. If further operational or maintenance details are required but not provided in this
guide, contact 3M™ GMI™ or their agent. 3M™ GMI™ shall not be liable for any incidental or conse-
quential damages in connection with any modifications, errors or omissions in this guide.
All pertinent state, regional, and local safety regulations must be observed when using this product.
For reasons of safety and to assure regulatory compliance, repairs should only be performed by the
manufacturer.
Additionally, industry standards, codes, and legislation are subject to change. Updated copies should
be obtained by users to ensure the most recently issued regulations, standards and guidelines are
available.
All pertinent state, regional, and local safety regulations must be observed when handling and dis-
posing of hazardous material, Toxic (E-Chem) Sensors, batteries and other similar items that may fall
under the classification of hazardous material.
The monitor must be regularly serviced and calibrated by fully trained personnel in a safe area.
Only use 3M™ GMI™ replacement parts.
Instrument must be re-charged in a safe area before use. Refer to Section 8. RECHARGING THE BAT-
TERIES.
Table 1-1: Certifications and Approvals
Mark
Class I, Div.1 Groups C and D T4
Class I, Zone 0 AEx ia IIB T4 Ga
WARNING: ALL INDIVIDUALS WHO HAVE OR WILL HAVE RESPONSIBILITY FOR
USING OR TESTING THIS PRODUCT MUST READ AND UNDERSTAND
THE CONTENTS OF THIS MANUAL. THE PRODUCT WILL PERFORM AS
DESIGNED ONLY IF USED AND TESTED IN ACCORDANCE WITH THE
MANUFACTURER'S INSTRUCTIONS. FAILURE TO FOLLOW
MANUFACTURER'S INSTRUCTIONS WILL RENDER THE WARRANTY AND
APPROVALS NULL AND VOID. FAILURE TO FOLLOW THESE
INSTRUCTIONS MAY ALSO RESULT IN SERIOUS INJURY OR DEATH.

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ABOUT THIS GUIDE
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If the monitor detects gas, follow your own organization’s procedures and operational guidelines.
Gas can be dangerous and care should always be taken in its presence.
Any right of claim relating to product liability or consequential damage to any third party against
3M™ GMI™ is removed if the above warnings are not observed.
1.5. Warnings and Cautions
WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC SAFETY.
WARNING: DO NOT CHARGE IN A HAZARDOUS AREA. Um = 6V.
NOTE: CSA have only assessed the LEL combustible gas detection portion of this monitor
for performance.
NOTE: The monitor contains internal checking of sensor sensitivity, which during calibration
will prevent the monitor being calibrated if it has been contaminated or reached its
end of life.

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ABOUT THIS GUIDE
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INTRODUCTION
2-1
2. INTRODUCTION
2.1. General Description
Working collaboratively with Con-Edison, National Grid, and the New York City Licensed Master
Plumbers (LMPs), 3M™ GMI™ developed the PS200-LMP to provide a fit-for-purpose gas detector
that meets the evolving needs of plumbing technicians. 3M™ GMI™ designed this multi-use detec-
tor specifically to address the gas monitoring practices of the plumbing and HVAC communities and
to enhance gas safety.
With three modes of operation, LMPs and their technicians can use this monitor to conduct regula-
tory compliant leak surveys of gas piping inside buildings. They can then transfer the results from
leak surveys, via Bluetooth, to applications running on tablets, allowing the survey data to be visual-
ized and then stored in the cloud for regulatory reporting purposes by a utility.
The monitor also assists with daily duties including purging of interior piping and providing atmo-
sphere monitoring for both flammable gas and carbon monoxide (CO).
With only two push buttons, the monitor provides the user with a simple to use gas detector
(Figure 2-1: PS200-LMP Portable Gas Detector).
The monitor features high visibility LED’s, a display that changes color from green to red when an
alarm is present, a sounder with a 90dB minimum output and a vibrating alarm. If gas levels exceed
configured limits or a monitor fault exists, there will be a clear and unmistakable indications.
Figure 2-1: PS200-LMP Portable Gas Detector
Backlit LCD Readout
Green/Red Visual
Sensors
Right Button
Left Button
Charging Contacts
x2
Audible Alarm
Sample Inlet Nozzle
Green/Red Visual
Alarms
Bluetooth

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INTRODUCTION
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2.1.1. FEATURES
• 3 operating modes:
♦Inspection (INSPT)
♦Personal Survey (PS)
♦Purge
• BIN number entering
• % Volume Gas and PPM Carbon Monoxide (CO) gas detection
• Audible and visual alarms
• Data logging, including leak surveys
• Bluetooth communication
♦Mobile app pairing
• Internal pump
• Rechargeable battery
• Easy maintenance
• Probe and filters included
• Certified for use in hazardous environments
• Switches off if calibration is overdue
• Blue rubber boot for added protection
2.2. Data Logging
Data logging is a standard feature on the monitor and allows both manual and automatic storage of
gas measurements, event logs, bump tests, and calibration details for subsequent downloading.
2.3. Filters
Filters in both the monitor and the probe protect the monitor from water and dust ingress.
Check these filters regularly, and replace them if necessary (refer to Section 9.2. Replace Instrument
Filters).
2.4. Construction
The monitor is housed in a tough, impact-resistant, molded case. Sealed to IP67, it can withstand
physical impact testing to EN 60079 section 1-5.
2.5. Identification Label
The label on the rear of the monitor includes serial number and important certification information.
2.6. Toxic Cell Integrity
The monitor continually monitors the CO toxic sensor and alerts the user if the sensor is not fitted or
responding.

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OPERATION
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3. OPERATION
Figure 3-1: Function Buttons
3.1. Operating Procedure
Check the following before use:
• The monitor is clean and in good condition.
• The hydrophobic filter and inlet filter for the monitor and probe are clean and in good condition.
• The sample line and any other accessories used are in good condition and leak-free.
• Switch monitor ON in fresh air and check that the battery is fully charged.
• Verify there are no faults.
• Attach probe, as required.
• All ranges are operational and the monitor is zeroed.
• The monitor is within the calibration period.
• Switch the monitor OFF, in fresh air, after use.
Additional:
• Perform a daily leak check when prompted by placing your thumb over the end of the sample
probe and ensuring the monitor displays FLOW FAULT TEST SUCCESFUL.
• Perform regular bump tests using either the Auto Bump/Calibration Station or by performing
manual bump tests.
NOTE: Throughout this document, the buttons will be referred to as L Button and R Button.
Right (R) Button
Left (L) Button

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OPERATION
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3.2. Switching the Monitor On
Press and hold the R Button for one second to switch the monitor ON (refer to Figure 3-1: Function
Buttons). The flash screen appears (as shown in Figure 3-2: Flash Screen) and the monitor begins its
warm-up routine, which lasts approximately 30 seconds. During the warm-up, a countdown timer
appears in the top right corner of the display.
Figure 3-2: Flash Screen
3.2.1. INSTRUMENT IDENTIFICATION
During warm-up, the LCD identifies the serial number, software version, battery status, and calibra-
tion gas information. The monitor will also indicate the number of completed leak inspections ready
to be transferred to the tablet application. These are shown as INS JOBS, as illustrated in Figure 3-3:
Monitor Identification Display.
Figure 3-3: Monitor Identification Display
3.2.2. FILTER CHECK/FLOW FAULT TEST (DAILY CHECK ONLY)
To ensure the monitor operates properly, always make sure the filters are in place and in good con-
dition, and perform a regular leak check. The monitor will prompt the user once every day to perform
these checks before it completes the warm-up sequence.
NOTE: The LCD backlight illuminates green and remains ON during warm-up. At the com-
pletion of the warm-up cycle, the LCD backlight automatically switches off.

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OPERATION
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3.2.2.1. Filter Check
First, the Filter Check screen (see Figure 3-4: Filter Check) prompts the user to check the filters. If fil-
ters have been checked, press YES to continue the monitor’s warm-up sequence. If NO is selected,
the monitor will automatically enter the 'switch off' sequence. Once the monitor shuts down, check
the filters and restart the monitor.
Figure 3-4: Filter Check
3.2.2.2. Flow Fault Check
Next, the FLOW FAULT TEST prompt screen appears (see Figure 3-5: Flow Fault Test). Select NEXT
to continue without performing a Flow Fault Test. If SKIP is selected, the monitor will automatically
enter the 'switch off' sequence.
To perform a flow fault test, block probe tip with your finger for approximately 5 seconds. The pump
should flow fault, the screen will turn red, and the monitor will ask whether you want to continue or
not. Press YES to continue the monitor’s warm-up sequence. If NO is selected, the monitor will
automatically enter the ‘switch off’ sequence.
Figure 3-5: Flow Fault Test
Flow Fault Test Prompt
Screen
Flow Fault Test
Successful

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OPERATION
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3.2.3. DATE AND TIME
The LCD displays the date and time during warm-up, as illustrated in Figure 3-6: Date and Time.
Figure 3-6: Date and Time
3.2.4. CALIBRATION DUE DATE
The calibration due date appears on the display, as illustrated in Figure 3-7: Calibration Due Date.
Figure 3-7: Calibration Due Date
If the calibration due date has expired, the following is displayed:
Figure 3-8: Calibration Overdue
The monitor must be switched off. The monitor cannot be used until a successful calibration is com-
pleted.
3.2.5. SENSOR CONFIRMATION CHECK
The symbol appears adjacent to each sensor type to confirm that the sensor has been zeroed
correctly, as shown in Figure 3-9: Sensor Check Displays.