FORENSICS DETECTORS FD-311 User manual

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
!
FORENSICS DETECTORSTM
www.forensicsdetectors.com
1!
INDUSTRIAL SPEC
GAS ANALYZER with
BUILT-IN PUMP
Model: FD-311
Manual Print Version: 1.0
USER MANUAL
Checklist
Serial #:
He sensor
Ar sensor
Other?
Telescopic Probe Kit
1ft Probe
2” Probe
Other?
Analyzer
Hard Carry Case
USB Charger
USB Cable
QC/CAL Certificate
User Manual

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
!
FORENSICS DETECTORSTM
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2!
GAS SENSOR RANGES
DEFAULT ALARM SET POINTS
Target
Gas
Range
Resolution
Low
Alarm
High
Alarm
Helium (He)
0-100%vol
0.1%vol
20%
50%
Argon (Ar)
0-100%vol
0.1%vol
20%
50%

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
!
FORENSICS DETECTORSTM
www.forensicsdetectors.com
3!
ANALYZER SPECIFICATIONS
Warranty: 1-year limited warranty
Sensor: Thermal Conductivity Sensor
Sensor Life: > 10 years
Error: ≤±2% F.S.
Response Time: ≤20 seconds
Store/Oper. Temp: 0°F - 122°F
Store/Oper. Humidity: <95%RH
Battery: DC3.7V Li–Ion battery 2000mAh
Charging Time: 4 hours
Operation Time: > 6 hours
Dimension/Weight: 9.5 x 2.5 x 1.7 inches, 440grams
Rating: IP65
Explosion Proof: Ex ib IIB T3 Gb
Pump Noise: <70dB
Pump Flow: 0.5 LPM
Inlet Air Barb: 5mm diameter
Display: High- Resolution Color LCD
Alarms: LED, Buzzer, and Vibration
Recharge: USB Charger (5V @ 1A) with USB mini cable
CARRY CASE DETAILS
Weight: 2lb with analyzer & accessories
Dimension: 11 x 8 x 4 inches

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
!
FORENSICS DETECTORSTM
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4!
PRODUCT FEATURES
• 32bit microprocessor, color display, and built-in-pump
• Rugged industrial design and build
• ABS and rubber housing, explosion proof
• Rechargeable Lithium-ion battery via easy USB charger
• Professional Hard Case
• Built-in pump and easy barb hose connector
1. INTRODUCTION
You have purchased the FD-311 INDUSTRIAL GAS DETECTOR by FORENSICS
DETECTORSTM.The detector is factory calibrated, TURN ON AND GO! This
product is an INDUSTRIAL gas analyzer made with a robust ABS design using a
high-quality thermal conductivity sensor. This detector is made for industrial use
for engineering professionals, technicians, contractors, energy inspectors,
researchers, and labs.
2. QUICK SETUP
1. Ensure all components are included.
2. Ensure analyzer is fully charged. If not, please charge the battery first.
3. Double check all tubing is well connected and in place. Check all connections.
4. Turn ON the detector. After countdown and self-check the pump turns ON
and READY to use when the instantaneous gas concentration is shown.
5. Start measuring. Real-time measurements are shown on the HOME screen.
6. Read this manual and familiarize yourself with the operation.
7. Always be safe.
8. Before turning OFF, flush/purge the air out the detector by allowing the pump
to run for 60 secs to allow fresh air to purge the instrument.
9. Ensure tubing and items are clean before storing as to avoid any
contamination, residual odors or toxic gases that may poison the sensor.

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
!
FORENSICS DETECTORSTM
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5!
3. ANALYZER OPERATION
ON/OFF: Press MIDDLE button for 3 seconds. After 60 sec countdown gas
detection begins, pump is ON and real time detected gas levels is show on the
HOME SCREEN. The home screen displays Time, Fan Icon, Battery Level Icon,
Gas and Gas Concentration. You will hear the pump and you are ready to start
taking measurements. To turn OFF, press MIDDLE button for 3 secs. Press the
left button to Turn off/on the PUMP. Press the right button to Mute. When in
normal operation, the Home Screen will appear like below on the left image.
MENU:Press the MIDDLE button. Enter the passcode 1111. Use the arrows
and middle buttons. Then you will enter the MENU SCREEN. The menu screen is
shown below right. Use LEFT and RIGHT buttons to make your selection, press
MIDDLE button to select.
HOME SCREEN
MENU SCREEN

INDUSTRIAL GAS ANALYZER FD-311
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6!
ALARM SETTINGS
AlarmSet: Alarms are triggered (LED flashes, Buzzer and Vibration) when
alarms points are met/exceeded. To change the alarm set points select
AlarmSet in the Main Menu (see prior section). You can change the preset
alarm level to your desired level by using the left and right buttons.
ALARM SET
NOTE: If ALARM triggers are critical to your application, always check the
alarm setting to ensure you are protected and alarm settings are as you
anticipate to avoid harmful exposure levels.

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
!
FORENSICS DETECTORSTM
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7!
ALARM LOGGING
AlarmLog:When alarms are triggered they are automatically recorded with a
date and time stamp along with the (min or max) alarm data point. This is useful
for safety personnel to keep track of exposures for record keeping and exposure
analysis purposes.
ALARM RECORD LIST
(Example)

INDUSTRIAL GAS ANALYZER FD-311
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!
FORENSICS DETECTORSTM
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8!
ZERO CALIBRATION
ZeroSet: ZeroSet should not be used very often - only if for some reason the
baseline zero value of the sensor value is flickering or drifting and does not
maintain a zero value.
Select ZeroSet from the Main Menu Screen. Expose to ZERO air for 1 min. Use
fresh air. Maintain a flow of > 0.5L/min to deliver the gas to the detector (i.e. via
the inlet). Use a T-piece. Excess gas should exit from the free parth (see our
YouTube video on calibration for Model FD-311). Then press SAVE button to
confirm the zero value. The value next to the zero value should be ignored (it is
an internal technical value). Then press Save - when complete, a blue floppy disk
icon will appear.
Gas Zero

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
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FORENSICS DETECTORSTM
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9!
SPAN CALIBRATION (see our YouTube Channel for Calibration tutorial)
Calibra.: Span calibration is undertaken to ensure accurate gas concentration
reading (i.e. ensure that the display reading is accurate and true). We
recommend calibration to be undertaken every 6 months. For analytical and
highly specific applications, calibration can be undertaken more often to ensure
the highest accuracy. If left beyond 6 months, the accuracy of the analyzer will be
compromised.
To undertake span calibration from the MENU SCREEN select Calibra. Expose
the analyzer to the calibration gas for 1 min. When using calibration gas bottles,
maintain a flow of at least 0.5L/min. Edit the gas concentration using left and
right buttons so the detector knows the concentration of the calibration gas.
After exposure, press EXIT. When complete, a blue floppy disk icon will be
displayed.
Calibration

INDUSTRIAL GAS ANALYZER FD-311
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MENU SCREEN
Check: Performs a self-check of the analyzer.
Info: Provides the software version information.
TimeSet: Allows to set the date and time.
Restore: Restores to factory default setting. Email Forensics Detectors to obtain
this password.
Exit: Switches back to the main screen.

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
!
FORENSICS DETECTORSTM
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11!
4. BATTERY CHARGING
The ANALYZER has a built-in lithium battery and can be charged via mini-USB
port. USB Charger must be rated >1.0A for fast charging. Before charging,
TURN OFF the analyzer to avoid any potential damage. Charging takes about 4
hours. Do not charge the device in a combustible area. The analyzer has the
battery level icon to provide you with an indication of how much battery is left.
5. OPERATIONAL TIPS
ü Before turning the detector off don’t forget to flush/purge out the detector
by allowing the pump to run for 60 secs to allow clean air to purge.
ü Ensure tubing and items are clean before storing as to avoid any
contamination, residual odors or toxic gases that may poison the sensor.
ü Ensure periodic calibration every 6 months so that the performance of the
detector remains within specification. If the calibration period is >6 months,
the detector still operates but accuracy will be compromised.
** WARNING**
Ø KEEP DETECTOR AWAY FROM ELECTROMAGNETC & MAGNETIC INTERFERENCES (i.e.
PHONES & MAGNETS)
Ø STORE DETECTOR WITHIN SPECIFICATIONS
Ø IF UNWELL, SEEK CLEAN AIR & MEDICAL ATTENTION.
Ø FOLLOW INSTRUCTIONS AS THE DETECTOR IS VERY SENSITIVE
Ø TO ENSURE ACCURACY, CALIBRATE DEVICE AT LEAST EVERY 6 MONTHS
Ø THE DETECTOR IS NOT RECOMMENDED FOR USE IN FLUE GAS AS THE UNIT DOES NOT
HAVE A WATER TRAP NOR A NOX FILTER and PROBE WILL NOT WITHSTAND TYPICAL
FLUE GAS TEMPERATURES.
Ø CHECK AND SET ALARM LEVELS APPROPRIATELY TO AVOID HARMFUL EXPOSURE -
CONSULT WITH YOUR SAFETY OFFICER OR WITH STATE/FEDERAL AGENCIES.

INDUSTRIAL GAS ANALYZER FD-311
FORENSICS DETECTORSTM !
!
FORENSICS DETECTORSTM
www.forensicsdetectors.com
12!
WARRANTY DISCLAIMERS
This product is covered by a one-year limited warranty.
This warranty does not cover damage resulting from accident, misuse, disassembly, abuse or
lack of reasonable care of the product, or applications not in accordance with the user
manual. It does not cover events and conditions outside of our control, such as Acts of God
(fire, severe weather etc.). It does not apply to retail stores, service centers or any distributors
or agents. We will not recognize any changes to this warranty by third parties. We shall not be
liable for any incidental or consequential damages caused by the breach of any express or
implied warranty. Except to the extent prohibited by applicable law, any implied warranty of
merchantability or fitness for a particular purpose is limited in duration for 1 year.
THIS PRODUCT CANNOT BE REPAIRED IF THE UNIT IS TAMPERED WITH IT WILL
INVALIDATE THE GUARANTEE. IF THE UNIT IS FAULTY PLEASE RETURN IT TO YOUR
ORIGINAL SUPPLIER WITH YOUR PROOF OF PURCHASE.
Copyright © 2020, FORENSICS LLC, all rights reserved.
FORENSICS, FORENSICS DETECTORS are registered trademarks of FORENSICS LLC. All other
trademarks, trade names, service marks and logos referenced herein belong to their
respective companies.
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