Kanomax Gasmaster 2750 User manual

Kanomax USA, Inc.
219 US Highway 206
Andover, NJ 07821
Phone: [phone] / Fax: [phone]
Web: www.kanomax-usa.com
E-mail: [e-mail]
Kanomax Gasmaster
2710 (V1.X), & 2750 (V1.X)
User Guide
V 1.0
Kanomax Gasmaster User Guide

Table of Contents
1. Monitor Components....................................................................................................................4
1.1. Model 2710..............................................................................................................................4
1.2. Model 2750..............................................................................................................................4
2. Installation .....................................................................................................................................5
2.1. Battery Pack............................................................................................................................5
2.1.1. Installation .......................................................................................................................5
2.1.2. Removal ..........................................................................................................................5
2.1.3. Charging Ni-MH Batteries ...............................................................................................5
2.1.4. Charging Lithium Polymer Batteries................................................................................6
2.1.5. Safety Information...........................................................................................................6
2.2. Sensor Heads..........................................................................................................................7
2.2.1. Sensor Warm Up.............................................................................................................7
2.2.2. Sensor Head Failure .......................................................................................................7
2.3. Optional Temperature and Relative Humidity Sensor ............................................................8
3. Operation .......................................................................................................................................8
3.1. Model 2710 Display.................................................................................................................8
3.2. Model 2750 Display.................................................................................................................8
3.3. Powering On and Off...............................................................................................................9
3.4. Menu Functions.......................................................................................................................9
3.4.1. Units ..............................................................................................................................10
3.4.2. Max/Min/Average Measurement Cycle.........................................................................10
3.4.3. Calibration .....................................................................................................................11
3.4.4. Mute Key.......................................................................................................................11
3.4.5. Location ID (Model 2750)..............................................................................................11
3.4.6. Monitor ID (Model 2750) ...............................................................................................11
3.4.7. Output Sensor (Model 2750).........................................................................................12
3.4.8. Alarm Points (Model 2750)............................................................................................12
3.4.9. Control Points (Model 2750) .........................................................................................13
3.4.10. Clock Setup (Model 2750).............................................................................................13
3.4.11. Logging Setup (Model 2750).........................................................................................13
4. Kanomax Gasmaster Monitor Software (Model 2750)..............................................................14
4.1. Set Up ...................................................................................................................................14
4.1.1. Connect.........................................................................................................................15
4.1.2. Configuration.................................................................................................................15
4.2. Data Logging.........................................................................................................................15
4.2.1. PC Data Logging...........................................................................................................15
4.2.2. Downloading Logged Data from Model 2750................................................................16
4.2.3. Graphs...........................................................................................................................16
4.2.4. Tables............................................................................................................................17
4.2.5. Data Analysis ................................................................................................................17
4.3. Advanced Data Management................................................................................................18
5. External Control Wiring (Model 2750).......................................................................................18
5.1. Wiring for Alarm.....................................................................................................................19
5.2. Wiring for Control ..................................................................................................................19
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5.3. Wiring the 0-5 V Analogue Output ........................................................................................20
6. Calibration of Sensor Heads......................................................................................................21
6.1. Calibration Procedure ...........................................................................................................21
6.2. Zero Calibration.....................................................................................................................22
6.3. Span Calibration....................................................................................................................22
6.3.1. Procedure......................................................................................................................24
6.4. Bump Test.............................................................................................................................24
6.5. Health and safety during calibration......................................................................................24
6.5.1. High pressure leak or failure of pressure regulator.......................................................25
6.5.2. Flammability of combustible gases ...............................................................................25
6.5.3. Toxicity..........................................................................................................................25
7. Specifications..............................................................................................................................27
7.1. Diagrams...............................................................................................................................28
7.2. Optional Extra: Handheld Enclosure.....................................................................................29
7.2.1. Specifications................................................................................................................29
7.2.2. Replacing the Sensor Head ..........................................................................................29
7.2.3. Removing the Monitor...................................................................................................30
8. Troubleshooting..........................................................................................................................30
8.1. Sensor Failure.......................................................................................................................32
8.2. Technical Support .................................................................................................................33
9. Guidelines on How to Measure Ozone.....................................................................................34
10. Care and Maintenance................................................................................................................35
10.1. Disposal / Recycling..........................................................................................................35
11. Appendix......................................................................................................................................36
11.1. Copyright...........................................................................................................................36
11.2. Software License...............................................................................................................36
11.3. Terms and Conditions.......................................................................................................36
11.4. Statements of Compliance................................................................................................36
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1. Monitor Components
1.1. Model 2710 Monitors
The following components are supplied with the Model 2710 Monitor:
•Monitor base
•12 VDC AC/DC adaptor or Lithium Smart Charger
•Battery pack – 9.6V Ni-MH or 11.1V Lithium Polymer
•User manual
1.2. Model 2750 Monitor
The following components are supplied with the Model 2750 Monitor:
•Monitor base
•USB to monitor cable
•Lithium Smart Charger
•Battery pack – 11.1V Lithium Polymer
•User manual
Note 1: The data logging software for the Model 2750 can be found at:
http://www.kanomax-usa.com/iaq/gasmaster/gasmaster.html
Please check that all these components have been supplied and contact your distributor or Kanomax
at: [e-mail] if any of the components are missing.
Replacement batteries, sensor heads and other accessories can be purchased separately.
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2. Installation
The following actions need to be completed before the monitor is ready for use:
•Insert the sensor head into the top of the monitor. The sensor head is keyed to ensure
the head is inserted correctly.
•The battery must be connected and charged prior to use. The battery is shipped installed
in the monitor but disconnected.
•The temperature and RH sensor needs to be inserted – optional
2.1. Battery Pack
2.1.1. Installation
1. Remove the battery cover and battery pack from the monitor
2. Insert the battery power connector
3. Put the tail end of the battery pack into the hinge points at the bottom of the monitor and clip
the top end of the battery pack into the top clips
4. Replace the battery cover on the monitor
Note: The NiMH batteries have a green casing; the Lithium batteries have a blue casing
2.1.2. Removal
1. Remove the battery cover from the monitor
2. Insert your thumb under the top left hand side of the battery pack and carefully lever the
battery pack out from the retaining clips
3. Unclip the connector from the monitor and remove
2.1.3. Charging Ni-MH Batteries
The life of the battery will be affected by the way it is handled. Take good care of the battery pack and
follow the guideline below.
Ni-MH batteries must be fully charged prior to first-time use. A new Ni-MH battery's full performance is
achieved only after a number of complete charge and discharge cycles. A fully charged battery will
run for approximately 4-6 hours depending on the sensor head being used.
With the adaptor plugged in and unit turned on allow 15 hours for the battery to fully
1
2
3
4
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charge.
•During charging the battery symbol on the display flashes slowly
•The battery can be charged with the sensor head installed or removed from the base.
(Remember to switch off the monitor before removing the sensor head)
•Unplugging the main power will reset the above charging conditions
•The batteries can be charged and discharged many times but will eventually wear out
When the operating time is noticeably shorter than normal, it is time to replace the battery
•It is not necessary to fully discharge the battery. When not using the monitor as a portable
unit, always plug in the mains adaptor to recharge the battery
•If left unused a fully charged battery will discharge itself over time
2.1.4. Charging Lithium Polymer Batteries
A new battery's full performance is achieved only after a number of complete charge and discharge
cycles. A fully charged battery will run for approximately 8 hours depending on the sensor head
being used. Perform charging at temperatures between 0 oC to 45 oC.
With the adaptor plugged in and unit turned off allow 3 hours for the battery to fully charge.
•Lithium versions show “Lithium Battery” on the initial monitor start up screen.
•The battery can be charged with the sensor head installed or removed from the base.
(Remember to switch off the monitor before removing the sensor head).
•The Lithium Smart Charger displays a red LED light when charging and a green LED
light when the battery is charged when monitor is off.
Note: The unit can be charged when switched on but it will charge more slowly. When the
unit is operating the red LED will remain on, even if the battery is fully changed.
2.1.5. Safety Information
•Do not use the battery pack for any other purpose than operating the Kanomax Gasmaster
•Do not disassemble or deface the batteries as this may cause burns
•Do not incinerate or heat as this may cause burns, the batteries may burst or cause the
release of toxic materials
•Do not short circuit as this may cause burns
•Use only batteries approved by Kanomax and recharge your battery only with the AC/DC
adaptor supplied with the instrument.
•Never use any charger or battery that is damaged or worn out
•Batteries must be recycled or disposed of properly. They must not be disposed of in municipal
waste
•Never charge the battery in a hermitically sealed container
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2.2. Sensor Heads
Note: Always place the sensor head perpendicular to the air flow to avoid damage to the
sensor.
2.2.1. Sensor Warm Up
Prior to operation the sensor must be warmed up to burn off any contaminants. When the monitor is
first switched on it will warm up for 3 minutes. The reading will then flash for the next 7 minutes to
indicate that the sensor is still in the warm up phase. It is recommended that the monitor is kept in
Stand By mode when not being used to keep the sensor heated and prevent the build-up of
contaminants. If the sensor is new (or unused for long periods) it can take up to 24 hours for the
message “sensor warming up” (or “sensor failure” in older models) to disappear. Should the message
remain after this time, a genuine sensor failure may have occurred. See the trouble-shooting guide.
For Ozone Sensor Heads:
•24hours is a conservative time for an ozone sensor to burn off contaminants and achieve its
stated performance specification. In most instances this will be achieved well within 24hrs.
•The warm up period can be reduced by subjecting the sensor to elevated ozone levels for a
short period. For example, 0.1 ppm of ozone for 5 minutes typically reduces the warm up time
to <30 minutes.
Note: Do not remove the sensor head while the monitor is switched on. This may damage the
unit. If the sensor head is removed under these conditions without AC/DC adapter connected,
the unit will automatically shut down.
2.2.2. Sensor Head Failure
There are three possible sensor failure modes, which will be indicated by one of the following
messages on the display:
“Sensor Failure, Replace sensor” - The sensor head should be replaced as this indicates that there
has been component failure.
“Sensor aging”–This indicates that the sensor has reached the end of its usable life and the sensor
head should be replaced as soon as possible. The measurement readings can no longer be relied
upon to be within specification.
Note: This message will only apply for O3 Low/Ultra Low sensor heads.
“S.F.” – When there is more than one sensor connected, S.F. will show for a sensor failure condition.
Outlet
Inlet (meshed)
Keyed connector to ensure
inserted correctly into base
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Scroll down
Scroll up
Enter
Alarm mute
Power button
2.3. Optional Temperature and Relative Humidity Sensor
If the temperature and relative humidity sensor has been purchased, it can be inserted into the PS/2
connector at the base of the monitor. Ensure monitor is turned off before connecting the sensor.
Note: The monitor will still operate with only the temperature
and RH sensor connected.
3. Operation
The following instructions detail the operation and set up of the monitor:
3.1. Model 2710 Display
3.2. Model 2750 Display
Enter
Power button /
Scroll button
USB to Monitor
Cable
Two Way
Adaptor Cable
Temperature &
Relative
Humidity Sensor
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3.3. Powering On and Off
To turn the monitor on: Press and hold the power button until the screen activates. The monitor will
turn on and the display will show KANOMAX GASMASTER and the Model Number and Firmware
Version. If the monitor is configured for use with a Lithium battery, it will also say “Lithium Battery”.
After 5 seconds the display will change to indicate the type of sensor head.
The monitor will then warm up. Once warm up is complete the main display will appear as seen
below:
or
•A battery indicator will appear at the bottom of the display when the monitor is operating
under Ni-MH battery power only. The indicator shows the battery life remaining
•The M and L (Monitor and Location) will only show on the Model 2750
•If a multi sensor is being used the screen will scroll through the parameters showing each
reading, only 3 parameters can be shown on the screen at one time
To turn the monitor off: Press and hold the power button for 2 seconds until the monitor beeps.
The display will now be blank and operation of the monitor will cease.
To activate standby mode: With the monitor on, press the power button once. This will stop
operation of the monitor; however the sensor will be kept warm.
This mode is used to conserve power between operations but keep the sensor ready to measure the
gas concentration with only a short warm up phase needed. In this mode the display will show the
sensor type and standby symbol.
To return the monitor to operational mode press the power button once.
Note 2: When using a Carbon Dioxide sensor head in standby mode, the sensor runs at full
power and the fan remains on.
3.4. Menu Functions
To enter the set up menu press the enter button on the display. The following menu will appear
depending on the Series of handheld:
O3 ULOW
0. 080
ppm
M 02
L 03
O3 UL0.080
TEMP 21.6C
RH 35.1% ppm
M 02
L 03
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Model 2710 Model 2750
3.4.1. Units
•To enter, scroll down in the set up menu and select “UNITS”. (Found under “MONITOR
SETUP” in the Model 2750)
•Choose between ppm or mg/m3 via the scroll button and press enter to confirm the unit
selection
•If there is a temperature and humidity sensor attached there is the option to choose from
either °C or °F
3.4.2. Max/Min/Average Measurement Cycle
•To enter, scroll down in the set up menu and select “MAX MIN AV”
•Select “start” to initiate the measurement cycle and return to the setup menu
•Scroll to “EXIT” to return to the main display
•The readings will scroll along the screen
Note: Only three parameters will be shown on the screen at one time.
•In the Model 2750 the “MAX MIN AV” cycle can also be initiated from the main display by
holding down the “scroll down” button for 2 seconds until the unit beeps. Hold down the “scroll
down” button again for 2 seconds to stop the measurement cycle.
•When the “MAX MIN AV” cycle is initiated, the display should read as seen below:
or
EXIT
LOCATION ID
MAX MIN AV
CALIBRATE
MONITOR SETUP
LOGGING SETUP
EXIT
ZERO CAL
UNITS
MIN MAX AV
MUTE KEY
O3 UL
PPM
RD 0.010
MIN 0.005
MAX 0.024
AVE 0.015
O3 UL TEMP RH
PPM C %
RD 0.010 23 50
MIN 0.005 22 50
MAX 0.024 25 56
AVE 0.015 24 54
EXIT
MONITOR ID
UNITS
OUTPUT SENSOR
ALARM POINTS
CONTROL POINTS
MUTE KEY
CLOCK SETUP
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Note 1: The MIN, MAX and AVE readings are the minimum, maximum and average readings
over the period from the start of the cycle.
Note 2: The RD value is the current reading.
Note 3: The speed of the display scrolling is dictated by the slowest sensor. The display will
scroll every time a new set of readings have been taken.
3.4.3. Calibration
To enter, scroll down in the set up menu and select either “ZERO CAL” on the Model 2710 or
“CALIBRATE” on the Model 2750. To enter the calibrate menu the “mute” and “scroll down”
button needs to be held down for 2 seconds. From here either “ZERO CAL” or “SPAN CAL” can
be selected.
For more information on how to calibrate the sensor heads please refer to Section 6 of the User
Guide.
3.4.4. Mute Key
•To mute the audible feedback “beeps” that occur when you press a button, scroll down in the
set up menu and select “MUTE KEY”. (Found under “MONITOR SETUP” in the Model 2750)
•Press the enter key to silence the audible feedback “beeps”, the word muted will appear next
to MUTE KEY
•On the Model 2710, if the device is turned off the mute settings will be returned to the default
state and will have to be reset when the monitor is restarted
3.4.5. Location ID (Model 2750)
•To select the location ID, scroll down in the set up menu and select “LOCATION ID”
•The location ID provides a means of identifying the location where a measurement was taken.
This can be used to quickly trace a measurement back to a location
•Location ID is logged for each measurement
•Press “enter” to confirm the ID and return to the set up menu
3.4.6. Monitor ID (Model 2750)
•The monitor ID can be found under “MONITOR SETUP”, scroll down in the monitor set up
menu and select “MONITOR ID”
•Each monitor can be numbered to identify them quickly when more than one is in use
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•Data is tagged with the monitor ID at the time it is downloaded to the PC, so you can use
more than one monitor with a single instance of PC software (2750 only). Each record in the
database contains date/time, monitor id, location id, sensor type, sensor reading.
•For compatibility purposes the database records for earlier versions of the MODEL 2750
(v5.x) default to monitor ID = 1 and location ID = 1. This cannot be changed.
•Press “enter” to confirm the ID and return to the set up menu
Note: In the Model 2750 data logging mode only the Location ID will be logged. The monitor ID
is loaded to the database at the time of data upload (where it is logged).
3.4.7. Output Sensor (Model 2750)
•If a multi-sensor head is connected, the output sensor selection will determine which sensor
the alarm and control points and buzzer refer to
•The output sensor can be found under “MONITOR SETUP”, scroll down in the monitor set up
menu and select “OUTPUT SENSOR” and select the relevant parameter
•The 0-5v analogue signal will also operate on the selected sensor and measurement range
3.4.8. Alarm Points (Model 2750)
•The alarm points can be found under “MONITOR SETUP”, scroll down in the monitor set up
menu and select “ALARM POINTS”
•Once the alarm set up menu has been entered “ALARM HI” will display
•Press the “scroll up” and “scroll down” buttons to select the correct concentration
•Press “enter” to confirm the change
•Once the high alarm has been set “ALARM LO” will display
•Press the “scroll up” and “scroll down” buttons to select the correct concentration
•Press “enter” to confirm the change
Once the low alarm has been set “BUZZER” display will show. Here you can either enable or disable
the alarm. If the alarm is disabled a “P” will show on the right hand side of the alarm mute symbol on
the main display, highlighting that the alarm has been permanently muted.
•If the concentration reaches above the high alarm point two flashing arrow symbols pointing
upwards will appear on the display, accompanied by a fast beeping sound.
•If the concentration reaches above the low alarm point two flashing arrow symbols pointing
downwards will appear on the display, accompanied by a slow beeping sound.
Note: The alarm can be muted by pressing the mute button on the display screen. However,
this is only a temporary mute and will only mute the alarm during that specific alarm condition.
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Once the concentration has moved back into the alarm limits the settings will reset. To turn of
the mute permanently follow instructions to disable the alarm.
3.4.9. Control Points (Model 2750)
•The control points can be found under “MONITOR SETUP”, scroll down in the monitor set up
menu and select “CONTROL POINTS”
•Once the control points set up menu has been entered “CONTROL HI” will display
•Press the “scroll up” and “scroll down” buttons to select the correct concentration
•Press “enter” to confirm the change
•Once the high point has been set “CONTROL LO” will display
•Press the “scroll up” and “scroll down” buttons to select the correct concentration
•Press “enter” to confirm the change
3.4.10. Clock Setup (Model 2750)
•The clock setup can be found under “MONITOR SETUP”, scroll down in the monitor set up
menu and select “CLOCK SETUP”
•To change the hours press the “scroll up” and “scroll down” buttons until correct time is
recorded
•Press “enter” to confirm and adjust the minutes using the “scroll up” and “scroll down” buttons.
•Repeat to adjust the seconds, month, day and year.
Note: The clock is a 24 hour clock
3.4.11. Logging Setup (Model 2750)
•To enter, scroll down in the set up menu and select “LOGGING SETUP”
•The log frequency will appear on the display.
•Adjust the frequency by using the “scroll up” and “scroll down” buttons
Note 1: The frequency is set to 1 minute intervals
•Once the frequency is set, press the “enter” button to confirm.
•The option to clear the log will then display on the screen.
•Press the “scroll up” button to select either YES or NO and press “enter” to confirm the
selection.
Month: Day: Year
Hours: Minutes: Seconds
14:30:12
Oct 07 12
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Note 2: The data log can also be cleared directly from the main display screen by holding
down the mute button for 2 seconds until the monitor beeps (if the monitor keys are not
muted).
•The display will then give the option to start logging
•Press the “scroll up” button to select either ON or OFF and press “enter” to confirm the
selection and return to the main menu.
Note 3: Data logging can also be both started and stopped directly from the main display
screen by pressing the “scroll up” button for two seconds until the monitor beeps (if the
monitor keys are not muted).
When data logging is initiated a triangle will appear on the main display screen.
The triangle is an indication that data logging is active, and is also used as an indication of the
presence of data, as described below:
•An empty triangle indicates that no data is stored
•A filling triangle indicates that some data is stored in the memory. The triangle will fill up in
10% increments.
•A full triangle indicates that the memory is full and needs downloading to the PC.
4. Kanomax Gasmaster Software (Model 2750)
4.1. Set Up
Computer Requirements
•USB to monitor cable
•Window OS version 2000 or later
•Recommended 512 Mb RAM or more
•Recommended 1 GHz processor speed or faster
CLEAR LOG
YES NO
LOGGING
ON OFF
LOG FREQ.
1 MIN
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4.1.1. Connect
1. Connect the Model 2750 monitor to a computer using the cable supplied and turn on
2. Launch the Kanomax Gasmaster PC software and click on the toolbar to search for the
monitor. The unit will be detected automatically and connect
3. Test the connection by clicking on the tool bar. This will display the Monitor Name,
Version and ID Number
4.1.2. Configuration
The Software can be used to set up the Monitor ID, Location Id, Alarm and Control Limits,
Logging Frequency, Units of Measurement, Output Sensor and Updating the Clock.
•Click Monitor Setup (or Ctrl P)
•The monitor setup dialog box will appear
•Type in the required values or scroll up or down to set
the desired values.
•Click the save button to synchronise the monitor
values with those on the PC.
•In order to data log it is essential that the clock on the
monitor is set to the real time. This can be done on
the monitor (Section 4.4.6.) or via the PC by using the
“Update Clock” button in the configuration menu.
Note: If the temperature and humidity sensor is
connected an option to select temperature unit will
appear
4.2. Data Logging
The Model 2750 monitor can log up to 8188 data points divided by the number of sensors being
logged. For example, if a triple sensor is connected it will log 8188/3 readings. Each sensor uses one
of the records each log period. Refer to Section 3.4.11 for instructions on how to log data on the
monitor itself. Alternatively, data can be logged directly to a PC.
4.2.1. PC Data Logging
Ensure that the USB cable is connected to the monitor and to the PC. Click File Start PC Data
Logging or click on the toolbar. The data will be logged directly to the database on the PC. No
data will be stored on the monitor memory in this mode of operation. However, if PC data logging is
stopped by clicking on the toolbar the data will start to be stored in the Model 2750 monitor
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memory.
4.2.2. Downloading Logged Data from Model 2750
Logged data from the monitor memory can be downloaded by clicking File Download Logged Data
or by clicking on the toolbar.
A data download progress bar will appear while the data is downloading. Once that data download to
the PC is complete, the monitor will beep and ask the user whether they wish to clear the logged data
on the monitor. Data logged on the monitor must always be cleared manually otherwise the data from
the monitor’s memory will be duplicated in the database each time a data download is performed.
If for any reason, the data download does not complete, is terminated or stops:
•Turn off the monitor to prevent any data loss.
•Delete the data that has been downloaded to the PC
•Close the PC software program and repeat the downloading process with the monitor on,
connected and with the PC software running.
4.2.3. Graphs
While logging directly to a PC, the Real Time View Graph or the Logged Data Graph can be
accessed via the “Data” menu on the menu bar.
Note: If a multi sensor is plugged in each parameter will been shown in individual tabs
1. The graphs can be configured by clicking Data Graph Default Style or by right clicking
on the graph and selecting “Graph Style”
2. Right click on the graphs to save or print the graphs
•Graphs will be saved as a JPG file
3. To reset the graph to the default, right click and
select “Reset to Default”
4. The logged data graph can be viewed be
clicking Data Graph Logged Data
Note 1: In the Logged Data Graph the date, time and
sensor type to be viewed can be selected. The
Monitor and Location ID can also be selected.
Note 2: The Monitor ID is not logged on each record
in the monitor but will be stored in the database
against each measurement when the data is
downloaded. The data will be tagged with whatever the monitor ID is at the time of download.
Conversely, the location ID is logged on each record in the monitor.
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4.2.4. Tables
While logging directly to a PC, the Real Time Table View or Logged Data Table can be accessed via
the “Data” menu on the menu bar.
In the logged data table view the date, time and sensor type can be selected to view the relevant
data. The Monitor and Location ID can also be selected. Clicking “view all” does not use the filter and
will show all the parameters and data in the database. Alternatively, clicking “apply” will filter the
parameters and show the chosen data.
1. To export the data, click the “Export” button on the logged table view.
•Select a directory and choose a file format (either plain text or MS Excel file) and enter a
file name. Click “Save” to export the data.
2. The data can be deleted by clicking the “Delete” button on the logged data table view.
•This will delete the individual data points shown in the logged data table from the
database.
4.2.5. Data Analysis
The Daily View is a summary for each day, from midnight to midnight, of the Minimum, Maximum and
Average readings over the 24 hour period.
•Click Data Daily Analysis to launch the Daily View window
•Either select the date range, monitor and location ID and click “Apply” or click “View All” to
show the daily analysis.
The summary data files can be exported to programs such as MS Excel by clicking the “Export”
button.
To delete the summary data click the “Delete” button. This will not delete the individual data points
from the database, only the daily summary data.
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4.3. Advanced Data Management
1. To archive logged data, click File Zip Database
•Select a directory and input a file name to backup all the current stored data to a zipped
file
2. To view archived logged data, Click File Unzip Database
•Select the zipped file and click OK.
•View and analyse data as required (Data Table Logged)
Note: To view an archived database it is important that any existing data logging function is
not interrupted. Do not view archived data on the same PC being used for data logging; the
current data in the database will be lost unless it has been zipped.
5. External Control Wiring (Model 2750)
The pin numbers for the external output connector are numbered from 1 to 6. Pin 1 is the closest pin
to the power jack.
The pin designations are as follows:
1. 12 V DC
2. Analogue output 0-5 V
3. Control
4. High alarm
5. Low alarm
6. Ground
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The RJ12 connector offers two possibilities for wiring, either a switch to GND or a 12V output. If the
12V output is used, the power for the relay coil is supplied by the Kanomax AC/DC adaptor. In this
case, ensure that the relay coil does not draw more than 150mA and that a protection diode is
inserted across the relay coil.
If the switch to GND output is used, ensure that the relay coil does not draw more than 150mA, that
the voltage does not exceed 24V and that a protection diode is inserted across the relay coil.
5.1. Wiring for Alarm
The high alarm and low alarm pins can be wired to supply simple on / off switching to operate
equipment which requires only an on or off signal, such as an alarm.
To switch to GND use pins 4, 5 and 6. For a 12V output wire to pins 4, 5 and 1 (see the following
diagram for typical wiring for high alarm). This feature will only operate while powered by the AC
adaptor.
High gas level alarm
Note: Failure to insert a circuit protection diode, shown as above, will result in damage to the
monitor if a voltage spike is created by the relay.
5.2. Wiring for Control
The control pin can be wired to supply control of a gas concentration between upper and lower
concentration limits. The upper and lower limits can be set by the user. The factory default settings
are dependent on the gas sensor head selected at time of purchase.
To switch to GND use pins 3 and 6. For a 12V output wire to pins 3 and 1 (see following diagram for
typical wiring). This feature will only operate while powered by the AC adaptor.
Control is achieved by using a software latch. If power is lost to the monitor, the switch will open and
therefore turn off the external device connected to the monitor external output. The following wiring
diagram demonstrates the typical wiring to achieve the required control.
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Note: Failure to insert a circuit protection diode, shown as above, will result in damage to the
monitor if a voltage spike is created by the relay.
5.3. Wiring the 0-5 V Analogue Output
The 0 to 5 V signal is a proportional signal based on the measurement of the selected output sensor.
The voltage out spans the specified gas sensor concentration ranges. For example: With the low
concentration ozone sensor head: 0 V represents 0 ppm ozone and 5 V represents 0.Model 2750
ppm ozone. Note: The ultra-low ozone sensor is a special case – 1.5V represents 0.150ppm
ozone in this case.
Note: Wire between pins 2 & 6
See Section 7.1 for output status conditions.
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Kanomax Gasmaster User Guide
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