SENSIT Technologies IRED User manual

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FOR YOUR SAFETY
NOTICE: This safety symbol is used to indicate a potentially hazardous situation which, if not avoided, may
result in minor or moderate injury.
WARNING: To prevent ignition of flammable or combustible atmospheres, disconnect power before
servicing in an area known to be free of combustible gases.
WARNING: Charge battery pack in an area known to be free of combustible gases.
WARNING: Use only SENSIT Technologies battery pack.
WARNING: Service may only be performed by factory authorized service technicians.
WARNING: Not for use in environments greater than 21% oxygen.
WARNING: Read and understand instructions prior to use.
WARNING: Always start the IRED in an area known to be gas free.
WARNING: Tampering with this product may void the warranty.
WARNING: Use only SENSIT Technologies approved parts and accessories.
WARNING: Never use an instrument known to be damaged, operating unusually, or out of calibration.

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CONTENTS
Parts and Accessories................................................................................................................................................4
Standard Parts (Included).......................................................................................................................................4
Calibration...............................................................................................................................................................4
Product and Technology Description..........................................................................................................................5
Product Features........................................................................................................................................................6
User Interface..........................................................................................................................................................6
Specifications..............................................................................................................................................................7
External Features .......................................................................................................................................................8
Battery Pack and Charging.....................................................................................................................................8
Handle Strap / Shoulder Strap Attachments...........................................................................................................9
Gas Inlet and Outlet................................................................................................................................................9
Hydrophobic Filter Assembly..................................................................................................................................9
Operation and Use................................................................................................................................................... 10
Power on and Startup Sequence......................................................................................................................... 10
Field Use - Measurement..................................................................................................................................... 11
Printing with the IR Printer ................................................................................................................................... 12
Power Down and Standby ................................................................................................................................... 12
Bump Test ............................................................................................................................................................... 13
Manual Bump Test............................................................................................................................................... 13
SMART-CAL Bump Test...................................................................................................................................... 14
Calibration................................................................................................................................................................ 15
Manual Calibration............................................................................................................................................... 15
SMART-CAL Calibration...................................................................................................................................... 16
User Menu ............................................................................................................................................................... 17
Expert Menu ............................................................................................................................................................ 19
Use in Conjunction with a PMD............................................................................................................................... 21
Method 1 –Simultaneous Sample Analysis ........................................................................................................ 22
Method 2 - Independent Sample Analysis........................................................................................................... 22
Methane/Ethane Ratio Chart................................................................................................................................... 23
SmartLink Software and Plotting Measurement Logs ............................................................................................. 25
Notes ....................................................................................................................................................................... 26
Warranty.................................................................................................................................................................. 28

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PARTS AND ACCESSORIES
STANDARD PARTS (INCLUDED)
Compact Carrying Case 872-00021
Telescopic Survey Probe 883-00029
Instrument Handle Strap 360-00464
Hot Swap Vehicle Battery 871-00030
Universal Wall Charger 871-00025
Battery Door Removal Tool 360-00249
Hydrophobic Filter Ring Assembly (10 pack) 873-00033
Survey Probe Filter (Blue) (1 filter) 360-00064
Instruction Manual 750-00061
For IREDs equipped with GPS:
SmartLink Log Viewer Software 870-00040
SmartLink Installation Guide 750-00051
CALIBRATION
IRED Calibration Kit 881-00100
Kit Includes:
(1) Regulator, (1) Cal Adapter
(1) 100 ppm Ethane / Nitrogen 58L
100 ppm Ethane 58L replacement cylinder 315-120010
IRED Bump Test Kit 881-00101
Kit Includes:
(1) Regulator, (1) Cal Adapter,
(1) 1000 ppm Methane / 10 ppm Ethane 58L
1000 ppm Methane / 10 ppm Ethane 58L 315-120005
See the accessories catalog on our website, www.gasleasksensors.com, for other accessories and replacement
parts.

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PRODUCT AND TECHNOLOGY DESCRIPTION
The SENSIT Infrared Ethane Detector, referred to as IRED, is designed to detect the presence of ethane gas in a
methane gas sample. The IRED can detect 250 parts per billion (ppb) up to 500 ppm ethane. The IRED is used
to determine if methane detected in the range of 50 –2400 ppm is of similar make-up to that of pipeline gas (which
contains ethane) or is naturally occurring methane from other sources such as organic decay. The IRED is not
designed for high concentrations or determining actual ethane content from within a pipeline.
The IRED senses gas using Infrared (IR) Absorption Spectroscopy in combination with an electronic narrow
bandpass filter. This technology utilizes an infrared light source with an output that is changed when certain gases
absorb the light output. The filter only allows specific light wavelengths to be monitored and measured. The
concentration of gas is proportional to the amount of specific IR light absorbed and is displayed in ppb or ppm
concentrations.
The IRED has a large display indicating both sustained and peak reading concentrations and other instrument
functions. An internal pump provides rapid sampling into the detection chamber. Bluetooth data transmission
provides communication of stored data. Optional GPS with Data Logging allows for further recording of time, data,
and location data.

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PRODUCT FEATURES
The IRED is constructed of durable ABS plastic.
The housing is designed to meet IP54 ingress protection.
The rechargeable battery pack is designed for easy field replacement and charging.
Calibration can be done either manually or with the Smart-Cal station.
External hydrophobic filters are inexpensive and easy to change.
The user interface is simple, easy to navigate, and will be familiar to users of other
SENSIT products.
Optional GPS gives latitude and longitude location coordinates for each field
measurement.
Measurement, calibration, and bump test results are all stored in internal memory that
can be printed with an IR printer or downloaded using SmartLink Software.
Built-in Bluetooth communication provides an easy and convenient way to retrieve data
from the IRED when used with SmartLink Software.
USER INTERFACE
The user interface on the IRED includes the
following features:
LCD
Three button operation
LED status indicators
Sounder
Photo cell for automatic backlighting
IR communication port

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SPECIFICATIONS
OPERATIONAL SPECIFICATIONS
Temperature: -4°F to 122°F (-20°C to 50°C)
Duty Cycle: 6 hours
Test Time: 40 seconds (after warm-up and zeroing)
Display: Visual –backlight display
Visual –concentration, test status, instructional prompts
Visual –failure indicators
Power: Lithium Ion rechargeable battery pack
Optional vehicle charger adapter
Pump Flow: 1.0 lpm
Sample Size Range: 50 –2400 ppm methane
PHYSICAL SPECIFICATIONS
Size: 11.625” x 5.25” x 8.275” (approximate) (11.6cm x 13.3cm x 21.3cm)
Weight: 7.41 lbs (3.36 kg)
Construction: Aluminum/ABS plastic
SENSOR SPECIFICATIONS
IR Sensor: Method: advanced infrared absorption spectroscopy
Detection range: 250 ppb –500 ppm ethane
Warmup time: < 30min
Calibration required: 3 months

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EXTERNAL FEATURES
BATTERY PACK AND CHARGING
The battery pack for the IRED is located on the back
side of the instrument housing. The batteries are
Lithium Ion rechargeable and only available from
SENSIT Technologies.
To remove the battery pack, turn the retaining screws
¼ turn. Pull the bottom of the pack away from the
main housing. The battery pack may be charged
while still in the housing, but the instrument will not be
able to be used during this time.
To re-install the battery pack into the instrument, slide
the top tabs of the battery pack into the retainers at
the top of the main housing. Push the bottom into
place and turn and lock the retaining screws.
The battery pack has LEDs to indicate charge status.
Charging should only be performed in an area known
to be free of combustible gases.
The battery pack may also be charged while
operating in a vehicle. Connect the 12 VDC adapter
into the vehicle power outlet and the external port on
the battery housing. This can be connected and
disconnected while the IRED is operating.
When the charger is disconnected, the words WARM UP PLEASE WAIT (flashing) are displayed and a 180 second
countdown is started and shown on screen. The user cannot perform a measurement until the countdown expires.
The instrument will only operate when on battery power.

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HANDLE STRAP / SHOULDER STRAP ATTACHMENTS
The IRED comes standard with a handle strap to make carrying the instrument more convenient. A shoulder strap
is also available. The straps clip onto two “D” rings on the sides of the IRED.
GAS INLET AND OUTLET
The gas inlet and outlet are located on the front of the main housing. Both are fitted with ¼ turn luer-style
connections for easy connection to probes or other accessories.
The inlet is the center fitting, and is attached to the filter cap which houses the hydrophobic filter assembly (see
next section). The outlet is towards the side of the instrument. Do not block the outlet.
HYDROPHOBIC FILTER ASSEMBLY
WARNING: Do not operate the IRED without a
proper filter installed, or with a filter that is
damaged or completely saturated with liquid.
Damage may occur to the pump or other internal
components.
The inside of the IRED is protected by a hydrophobic
filter. This filter should always be in place when the
instrument is in use. There are two different styles of
filters for the IRED, depending on when the
instrument was manufactured.
The old style filter has an adhesive ring that sticks to
the filter base. Instruments manufactured before
January of 2017, and that have a black filter cap, use
the old style filter.
The new style filter uses a gasket and O-ring to seal
properly. Instruments manufactured during or after
January of 2017, and that have a white filter cap, use
the old style filter.

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OPERATION AND USE
POWER ON AND STARTUP SEQUENCE
To power on the IRED, press and hold the POWER (A) button until the display illuminates. The following warmup
sequence will occur on the display:
Display SENSIT logo
System check
Display serial number, software revision, date and time
Flow check
oIf the flow check is successful, PASSED with be displayed.
oIf the flow check is unsuccessful, ensure that nothing is obstructing the inlet or exhaust, and check the
integrity of the hydrophobic filter.
Warmup is indicated by PLEASE WAIT with a 600 second countdown timer. The countdown timer will begin after
an initial warmup of ~5 minutes.
Cell check
oThis is a 5 step process that tests the integrity of the internal cell, and takes 7-8 minutes to complete. The
process is automatic and does not require any user input.
Clean air
Methane cell in
Temperature adjustment
Methane cell in
Clean air
oIf the cell check fails, restart the instrument. If the process is unable to successfully complete, service is
required.
Calibration due date indicating when calibration will need to be done or PAST DUE indicating calibration date has
been exceeded. If calibration is required:
oPressing the Abutton will turn off the instrument.
oPressing the Bbutton will begin the calibration process.
oPressing the Cbutton will skip past the calibration required message to continue warm up. This option is
password protected.
[If activated] Auto Bump test function to validate sensitivity to ethane
oPressing the Abutton will turn off the instrument.
oPressing the Bbutton will begin the bump test process (see the Bump Test section in this manual).
oPressing the Cbutton will skip past the bump test requirement to continue warmup.
Working mode display indicated by READY FOR MEASUREMENT on the display and ready LED being illuminated.

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FIELD USE - MEASUREMENT
1) Before taking a measurement, it is recommended to perform a flow block check to ensure the sampling system
of the IRED and any probe that will be attached is intact and doesn’t have any leaks. To perform a flow block
check:
a) Ensure the instrument is on the READY FOR MEASUREMENT screen. Attach the probe that will be used for
sampling (telescopic survey or bar hole probe) to the inlet of the IRED.
b) Block all inlets of the probe with either your finger(s)/hand. In the case of a bar hole probe, it may be easier
to use something like a latex/nitrile glove or a balloon to more easily seal all inlets. You should hear the
pump begin to labor and FLOW BLOCKED should be displayed after a few seconds.
c) If FLOW BLOCKED is not displayed, the probe may have a leak. Inspect all connections, fittings, and any O-
rings, and try again. If still not displayed, remove the probe from the instrument and block the inlet of the
IRED directly. If still not displayed, inspect the filter cap assembly of the IRED, ensure it is threaded onto
the base correctly, and replace the filter/O-ring as necessary.
d) If FLOW BLOCKED cannot be achieved after the above steps, the IRED should be serviced.
2) From the READY FOR MEASUREMENT display, press and release the Bbutton to start a measurement. Before a
measurement can be taken, the zeroing process must complete.
a) Apply air known to be free of methane or ethane gas (i.e. ambient, clean air. Do not sample from where
you want to take a measurement.). The pump must be on, do not turn it off.
b) Press and release the Bbutton to accept. SAMPLING CLEAN AIR will be displayed along with sensor output
information. These numbers are only used for troubleshooting purposes should an issue occur.
c) The internal cell, containing methane, is introduced into the light path inside the instrument. METHANE CELL
IN will be displayed. If the reading is not stable the zeroing process will automatically re-initiate, indicated
by RE-ZEROING being displayed. This process may repeat one or more times until a stable reading is
achieved, indicated by PLEASE BEGIN SAMPLING being displayed along with a 120 second countdown timer, as
well as an audible tone. The measurement must be started before the countdown expires, or a new zero
will need to be established.
NOTE: The zeroing process may be needed up to 10 times. A successful zero is saved as the starting
point for the next required zero, so in general less zeroing will be needed the more often the IRED is used.
If the IRED cannot zero successfully after 10 attempts, an error message will be displayed. Contact SENSIT
for assistance.
3) Place the end of the probe in the area to be tested.
4) Press the Bbutton to start the measurement within the countdown time indicated on screen (120 seconds).
5) The measurement is indicated by MEASUREMENT being displayed. During measurement, 4 consecutive 10
second readings are taken. The display will be updated every 10 seconds with this reading until 40 seconds
has elapsed. The final reading is indicated by RESULT being displayed. The real-time/average reading will be
displayed on the left side of the screen and the peak reading will be displayed on the right. Press and release
the Abutton to exit or the Cbutton to print the result to an IR printer.
a) During the measurement, if the concentration of methane is too large (above 2400 ppm), BACKGROUND TOO
HIGH will be displayed. Dilute the sample by drawing in more air, which can usually be achieved by slightly
moving the probe away from the source.

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PRINTING WITH THE IR PRINTER
All measurements the IRED takes are automatically saved in the Measurement Log. These can be retrieved at any
time with SmartLink Software (included). See the SmartLink Software section in this manual for more information.
Another option to obtain a record of a measurement is to print it using the IR printer. This option is only available
directly after a measurement, while on the RESULT screen.
To print a measurement result:
1) Turn on the IR printer and aim it at the IR window of the IRED (oval window on the right side of the display) at
a distance of about 6 inches or 15 cm.
2) On the IRED, press and release the Cbutton to begin printing.
POWER DOWN AND STANDBY
To either power the IRED down or put it into standby mode (reduced battery consumption), press and hold the A
button from the ready for measurement screen. SHUT DOWN and STAND BY will be shown on the display.
Press and release the Abutton to start the shutdown process. The instrument will purge for a set amount of time
(10 seconds by default), and then power off.
Press and release the Cbutton to put the instrument in standby mode. Standby mode reduces battery consumption
by putting the IRED in a low power state. To exit standby mode, press and release the Abutton. WARMUP will be
displayed with a 3 minute countdown. The normal READY FOR MEASUREMENT screen will be displayed after the
countdown expires.

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BUMP TEST
MANUAL BUMP TEST
1) From the READY FOR MEASUREMENT screen, press and release the Cbutton until BUMP TEST is displayed. Press
and release the Bbutton to select. Before the actual bump test begins, the unit will first go through a zeroing
process:
a) Apply air known to be free of methane or ethane gas (i.e. ambient, clean air). The pump must be on, do
not turn it off.
b) Press and release the Bbutton to accept. SAMPLING CLEAN AIR will be displayed along with sensor output
information. These numbers are only used for troubleshooting purposes, should an issue occur.
c) The internal cell, containing methane, is introduced into the light path inside the instrument. METHANE CELL
IN will be displayed. If the reading is not stable the zeroing process will automatically re-initiate, indicated
by RE-ZEROING being displayed. This process may repeat one or more times until a stable reading is
achieved, indicated by BUMP TEST 10 PPM ETHANE being displayed, as well as an audible tone.
NOTE: The zeroing process may be needed up to 10 times. A successful zero is saved as the starting
point for the next required zero, so in general less zeroing will be needed the more often the IRED is used.
If the IRED cannot zero successfully after 10 attempts, an error message will be displayed. Contact SENSIT
for assistance.
2) Prepare the bump test kit by screwing the regulator onto the cylinder of gas (10 ppm ethane / 1000 ppm
methane, balance air). If you are using a demand regulator (standard with the bump test kit from SENSIT),
leave the pump on. If you are using a positive pressure regulator, turn the IRED pump off by pressing and
releasing the Cbutton and turn the regulator on so that gas is flowing.
3) Attach the hose from the regulator to the inlet of the IRED.
4) Press and release the Bbutton to start the bump test. After the reading has stabilized, the result will be
displayed.
a) If successful, the result will display PASSED. Press and release the Abutton to return to the user menu.
Press and release the Bbutton to print.
b) If unsuccessful, press and release the Cbutton to perform another bump test. If still unsuccessful, perform
a calibration.
Bump test results are logged for later viewing and/or download. See the SmartLink Software section in this manual
for more information.

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SMART-CAL BUMP TEST
NOTE: To be compatible with the IRED, the Smart-Cal Station must have firmware version 3.05 or higher. The
bump test gas (1000 ppm methane / 10 ppm ethane) should be attached to the blue port.
1) From the READY FOR MEASUREMENT screen, press and hold the Abutton for 1-2 seconds and release. SMART-CAL
will be displayed.
2) Place the IRED in the SMART-CAL instrument cradle, with the battery side down and with the display facing
towards the station.
3) Attach the instrument hose to the inlet of the IRED.
4) Press and release the right (BUMP TEST) button the station. The bump test process should begin.

15
CALIBRATION
MANUAL CALIBRATION
1) From the READY FOR MEASUREMENT screen, press and release the Cbutton until CALIBRATION is displayed. Press
and release the Bbutton to select. Before the actual calibration begins, the IRED will first start the zeroing
process:
a) Apply air known to be free of methane or ethane gas (i.e. ambient, clean air). The pump must be on, do
not turn it off.
b) Press and release the Bbutton to accept. SAMPLING CLEAN AIR will be displayed along with sensor output
information. These numbers are only used for troubleshooting purposes should an issue occur.
c) The internal cell, containing methane, is introduced into the light path inside the instrument. METHANE CELL
IN will be displayed. If the reading is not stable the zeroing process will automatically re-initiate, indicated
by RE-ZEROING being displayed. This process may repeat one or more times until a stable reading is
achieved, indicated by CALIBRATING PLEASE APPLY 100 PPM ETHANE being displayed, as well as an audible tone.
NOTE: The zeroing process may be needed up to 10 times. A successful zero is saved as the starting
point for the next required zero, so in general less zeroing will be needed the more often the IRED is used.
If the IRED cannot zero successfully after 10 attempts, an error message will be displayed. Contact SENSIT
for assistance.
2) Prepare the calibration kit by screwing the regulator onto the cylinder of gas (100 ppm ethane, balance
nitrogen). If you are using an on-demand regulator (standard with the calibration kit from SENSIT), leave the
pump on. If you are using a positive pressure regulator, turn the IRED pump off by pressing and releasing the
Cbutton and if applicable turn the regulator on so that gas is flowing.
3) Attach the hose from the regulator to the inlet of the IRED.
4) Press and release the Bbutton to start the calibration. After the reading has stabilized, the result will be
displayed.
a) If successful, the result will display PASSED. Press and release the Abutton to return to the user menu.
b) If unsuccessful, press and release the Abutton to return to the user menu and attempt the calibration again
from step 1a. If calibration cannot be successfully completed, the IRED may require service. Contact
SENSIT Technologies for assistance.
Calibration results are logged for later viewing and/or download. See the SmartLink Software section in this manual
for more information.

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SMART-CAL CALIBRATION
NOTE: To be compatible with the IRED, the Smart-Cal Station must have firmware version 3.05 or higher, and be
equipped with the “optional” (purple) port on the back of the station. The calibration gas (100 ppm ethane balance
nitrogen) should be attached to the purple port.
1) From the READY FOR MEASUREMENT screen, press and hold the Abutton for 1-2 seconds and release. SMART-CAL
will be displayed.
2) Place the IRED in the SMART-CAL instrument cradle, with the battery side down and with the display facing
towards the station.
3) Attach the instrument hose to the inlet of the IRED.
4) Press and release the left (CALIBRATE) button the station. The calibration process should begin.

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USER MENU
To access the user menu, press and release the Cbutton from the READY FOR MEASUREMENT screen. The following
features can be accessed from the user menu. Scroll through each item by pressing and releasing the Cbutton.
To select, press and release the Bbutton. Pressing and releasing the Abutton will exit the menu.
WARNINGS
Shows any warnings that are present.
1) Bluetooth not communicating
2) GPS not communicating
3) Bump Test skipped
4) Calibration skipped
BUMP TEST
Allows user to perform a manual bump test. See the
Bump Test section in this manual for more
information.
CALIBRATION
Allows user to perform a manual calibration. See the
Calibration section in this manual for more
information.
VIEW BUMP LOG
Displays the bump test log on screen, sorted by date
and time with the most recent log shown first. The
bump log contains up to 100 records.
1) Press and release the Bbutton to view the logs.
If no log is shown when the Bbutton is released,
there are no logs to display.
2) Press and release the Bbutton to view the
previous record and/or the Cbutton to view the
next record.
3) Press and release the Abutton to return to the
User Menu.
VIEW CAL LOG
Displays the calibration log on screen, sorted by date
and time with the most recent log shown first. The cal
log contains up to 100 records.
1) Press and release the Bbutton to view the logs.
If no log is shown when the Bbutton is released,
there are no logs to display.
2) Press and release the Bbutton to view the
previous record and/or the Cbutton to view the
next record.
3) Press and release the Abutton to return to the
User Menu.
VIEW MEAS LOG
Displays the measurement log on screen, sorted by
date and time with the most recent log shown first.
The measurement log contains up to 1000 records.
1) Press and release the Bbutton to view the logs.
If no log is shown when the Bbutton is released,
there are no logs to display.
2) Press and release the Bbutton to view the
previous record and/or the Cbutton to view the
next record.
3) Press and release the Abutton to return to the
User Menu.
ERASE MEAS LOG
Erases the measurement log. This option is
password protected.

ACTIVATE GPS
Only available if GPS option is installed and currently deactivated.
NOTE: If an IRED is ordered with GPS, it should
automatically activate upon power on.
Press and release the Bbutton to activate GPS.
ACTIVATING PLEASE WAIT will be displayed for a few
seconds before returning to the User Menu.
SET TIME
1) Press and release the Bbutton to enter the set
time menu.
2) The hour field will be blinking. Press and release
the Bbutton to adjust (24 hour format). Press and
release the Cbutton to move to the minute field.
Press and release the Bbutton to adjust.
3) Once all fields are correct, press and release the
Abutton to save and exit to the User Menu.
SET DATE
1) Press and release the Bbutton to enter the set
date menu.
2) The day field will be blinking. Press and release
the Bbutton to adjust. Press and release the C
button to move to the next field.
3) Repeat step 2 for the month and year fields. If
the year is too high, keep using the Cbutton until
2050 is passed to wrap back around to 2000.
4) Once all fields are correct, press and release the
Abutton to save and return to the User Menu.
VIEW SETTINGS
Allows the user to view all settings saved on the
instrument. This includes settings in the expert and
factory menu.
1) Press and release the Bbutton to view the
settings.
2) Press and release the Cbutton to scroll through
each setting. The currently selected setting is
indicated by >> displayed to the left. Press and
release the Bbutton to adjust the setting
(password protected).
3) Press and release the Abutton to return to the
User Menu.
EXPERT MENU
Access to the expert menu. Password protected.
See the Expert Menu section in this manual for more
information.
FACTORY MENU
Access to the factory menu. Password protected.
TEST MENU
Access to the test menu. Displays diagnostic
information that the user normally doesn’t need to
see.

19
EXPERT MENU
The Expert Menu contains supervisor level settings related to the operation and use of the instrument. This menu
is password protected. If you need to access something in the Expert Menu, contact SENSIT Technologies for
assistance. The following features can be accessed in the Expert Menu:
CONTRAST
Default: 36
Sets the contrast of the display.
LANGUAGE
Default: English
Sets the language used throughout the user interface.
The only language currently supported is English, as
of the writing of this manual.
CAL FLOW
Calibration process for the internal pressure sensor,
which is used for flow block indication. This is done
at the factory and does not need to be recalibrated
unless there is an issue.
ADVANCE CALIB
Advanced calibration process. This is done at the
factory before the instrument is shipped and is not
required to be done by the user.
CAL PPM
Default: 100 ppm
Sets the ethane gas concentration in ppm that is
expected by the calibration process. Default of 100
ppm is the only calibration kit that SENSIT offers.
CAL INTERNAL
Default: 90 days
Calibration interval, set in number of days. After this
numbers of days has passed sincethe lastsuccessful
calibration, the user will be prompted to perform a
calibration on startup, after the warmup process.
BUMP INTERVAL
Default: 0 (disabled)
Defines the interval for the “Auto Bump” feature, set
in number of days. After this number of days has
passed since the last successful bump test, the user
will be prompted to perform a bump test on startup,
after the warmup process.
BUMP PPM
Default: 10 ppm
Sets the ethane gas concentration in ppm that is
expected by the bump test process. Default of 10
ppm is the only bump test kit that SENSIT offers.
BUMP L-LIMIT%
Default: 80%
Sets the lower limit for a successful bump test. With
default options, this would be 8 ppm (80% of 10 ppm
expected).

20
BUMP H-LIMIT%
Default: 120%
Sets the upper limit for a successful bump test. With
the default options, this would be 12 ppm (120% of 10
ppm expected).
PURGE TIME
Default: 10 seconds
Sets the time in seconds that the IRED will purge
before shutting off, after the user selects shut down.
ERASE BUMP LOG
Password protected. Erases the bump log.
ERASE CAL LOG
Password protected. Erases the calibration log.
ERASE MEAS LOG
Password protected. Erases the measurement log.
CELL CHECK
Starts the internal cell check process. This also runs
after the warmup process after power on.
SCAL PUMP CH4
Default: disabled
Controls whether the pump is automatically enabled
or disabled during a Bump Test when using the
SMART-CAL Station. It should be enabled if using an
on-demand regulator and disabled if using a positive
pressure regulator.
SCAL PUMP C2H6
Default: disabled
Controls whether the pump is automatically enabled
or disabled during Calibration when using the
SMART-CAL Station. It should be enabled if using an
on-demand regulator and disabled if using a positive
pressure regulator.