Manual R1.0
User
Personal Safety
O2 Monitor ESSAN-20
Exclusively Distributed & Supported By:
www.edaphic.com.au
info@edaphic.com.au
1
PAGE 2 of 10
Contents
INTRODUCTION .............................................................................................................................. 3
FEATURES ...................................................................................................................................... 3
APPLICATIONS ............................................................................................................................... 3
THEORY OF OPERATION .............................................................................................................. 4
MONITOR ........................................................................................................................................ 4
LCD DISPLAY .................................................................................................................................. 4
OPERATION .................................................................................................................................... 5
MAINTENANCE ............................................................................................................................... 7
SPECIFICATIONS ........................................................................................................................... 8
TROUBLESHOOTING ..................................................................................................................... 8
OXYGEN RECOMMENDED LEV ELS ............................................................................................. 9
SUPPORT ........................................................................................................................................ 9
WARRANTY ..................................................................................................................................... 9
LIABILITY ....................................................................................................................................... 10
RETURNS ...................................................................................................................................... 10
CONTACT US ................................................................................................................................ 10
PAGE 3 of 10
INTRODUCTION
Congratulations on your purchase of this ESSAN-20 Pocket Personal Safety O2 Monitor.
The ESSAN-20 is a personal safety O2 monitor designed to monitor ambient oxygen levels in
real time. It is designed to protect workers in confined spaces. ESSAN-20 is shipped fully
tested and factory calibrated and, with proper use, will provide years of reliable service.
FEATURES
• Fluorescence-based Optical Oxygen Sensor
• High accuracy and long life
• Has negligible cross sensitivity to other gases
• Audible, visual strobe and vibrating alarms
• Large LCD display
• Rugged design with protective rubber enclosure
• Heavy duty metal clip
• Front facing sensor unit
• Rechargeable Battery 4.2v, 1500mAh
• Micro USB cable and wall USB charger
• Rechargeable Li-Ion battery : 10+ hours per charge
• Man down alarm - leveraging accelerometer technology
• Calibration methods: Ambient Air (20.9%)
• Automatic atmospheric pressure compensation for O2 concentrations
• No over-exposure or negative memory effects
APPLICATIONS
• Stored Gases in Confined Spaces. Industrial use of stored or piped gases creates the
possibility that oxygen in breathable air could be displaced by gases such as nitrogen,
helium, argon or carbon dioxide resulting in a hazardous condition.
• Underground Tunnels, Caves or Mines. Over time oxygen can be displaced by other
naturally occurring gases like carbon dioxide, carbon monoxide, ammonia, methane and the
oxidation of sulfides resulting in lower oxygen levels than is required for personal safety.
• Combustion in Confined Spaces. Combustion first uses up the available oxygen, then
produces partial oxidation of carbon (carbon monoxide), hydrogen cyanide, and nitrogen
oxides. Hydrogen gas can also be produced and displace oxygen.
Please take a moment to read these instructions before use. They will provide you with
all the necessary information for the correct use of your oxygen monitor.
PAGE 4 of 10
THEORY OF OPERATION
The ESSAN-20 Personal Safety O2 Monitor determines the concentration of oxygen in air
samples using the principle of fluorescence quenching by oxygen. Air reaches the sensor by
diffusing through the openings of the unit. Normal air movement is enough to carry the
sample to the sensor. It has negligible cross sensitivity to other gases. The monitor benefits
from low power operation while providing a much longer lifetime due to the non-depleting
sensing principle.
MONITOR
1. Visual alarm/strobe
2. Front facing sensor
3. Charging indicator
4. LCD display
5. Power button
6. Temperature units
switching button
7. USB charging inlet
(bottom side)
8. Heavy duty metal clip
9. Factory reset button
LCD DISPLAY
1. Danger low oxygen alarm indicator
2. Warning high oxygen alarm indicator
3. Battery indicator
4. O2 concentration
5. O2 concentration units (%)
6. Calibration icon
7. Man down alarm
8. Air Temperature
9. Temperature unit
(Fahrenheit or centigrade degrees)
10. % Relative Humidity
PAGE 5 of 10
OPERATION
Menu Items
Functional Description
“AIR” means Ambient Air Calibration. User presses the power button
to implement Ambient Air Calibration (20.90%).
1. Power button
1) When the Monitor is turned off, press to turn on the unit.
2) When the Monitor is turned on, press for 3 seconds to turn off the unit.
When the unit is first turned on, it performs 5 seconds countdown for Monitor warm up, then
enters normal display with current O2, temperature, and humidity readings displayed. The
monitor starts taking measurements when power on and updates readings every 2 seconds.
2. Temperatu
re Units Switching Button
2.1 Temperature Unit
Press shortly to switch two temperature units: °F and °C.
2.2 Menu Status and Configuration Settings
By pressing the temperature unit switching button
for 5 seconds, the unit enters into Menu
status. There are five menu items by pressing the temperature unit switching button shortly
to loop switching between AIR, LX.X, HX.X, A ON/AOFF and E (exit). The menu items
are described in the following table.
AIR
L15.0/
L15.5/L16.0/L16
.5/L17.0/L17.5/L
18.0/L18.5/L19.
0/L19.5/L23.0/L
23.5
H15.0/
H15.5/H16.0/H1
6.5/H17.0/H17.
5/H18.0/H18.5/
H19.0/H19.5/H2
3.0/H23.5
Low Alarm Threshold setup.
User presses the power button to switch the low alarm
threshold: L15.0 (15.0%), L15.5 (15.5%), L16.0 (16.0%), L16.5
(16.5%), L17.0 (17.0%), L17.5 (17.5%), L18.0 (18.0%), L18.5
(18.5%), L19.0 (19.0%), L19.5 (19.5%), L23.0 (23.0%), and L23.5
(23.5%). Default: L.19.5%
High Alarm Threshold setup.
User presses the power button to switch the high alarm
threshold: H15.0 (15.0%), H15.5 (15.5%), H16.0 (16.0%), H16.5
(16.5%), H17.0 (17.0%), H17.5 (17.5%), H18.0 (18.0%), H18.5
(18.5%), H19.0 (19.0%), H19.5 (19.5%), H23.0 (23.0%), and H23.5
(23.5%). Default: H.23.5%
PAGE 6 of 10
Setting Man down a
User presses the power button to exit the menu status.
A ON/ AOFF
E
3. ESSAN-20 Calibration
button to sw
(prohibiting Man down alarm).
larm function on/off. User presses the power
itch “A ON” (allowing Man down alarm) or “AOFF”
This device features
performed i
button for 5-10 seconds, the monitor will enter the configuration menu. The temperature unit
button can be used to cycle through the configuration and calibration options. When the monitor
displays "AIR" press and hold the power button to start the calibration. The Monitor will display
"IP" during the calibration.
4. Alarm Threshold
There are high and low alarm thresholds in ESSAN-20. Both high and low alarm has
twelve thresholds: 15.0%, 15.5%, 16.0%, 16.5%, 17.0%, 17.5%, 18.0%, 18.5%, 19.0%, 19.5%,
23.0%, and 23.5%. Obviously, high alarm threshold should not less than low threshold. They
can be same alarm level.
The SAN-20 is equipped with audible, visual and vibration alarms to alert users when the
ambient oxygen concentration exceeds either of the two factory preset alarm levels:
• Danger Low Oxygen Alarm: LED will flash and audible alarm will sound 3x / sec.
• Warning High Oxygen Alarm: LED will flash and audible alarm will sound 2x / sec.
To alert users in noise environment, an inner vibrator will vibrate at 1Hz in both Oxygen Alarms.
Normal atmosphere
that contains less than 19.5% oxygen as “oxygen deficient” and any atmosphere that contains
more than 23.5 percent oxygen as “oxygen enriched.”
n fresh outdoor air. While the device is on, press and hold the temperature unit
one method for calibration: Ambient Air (20.9% Oxygen). This should be
contains between 20.8%and 21% oxygen. OSHA defines any atmosphere
ATTENTION! - If a Warning or Danger Alarm is triggered while using the
instrument as a safety monitor, leave the area and seek fresh air immediately.
Remaining on site under such circumstances can cause serious impairment or
even lead to death.
5. Automatic Atmospheric Pressure Compensation
The O2 measurement is affected by atmospheric pressure or altitude changing. When users are
at high altitude, compensation should be made to assure maximum monitor accuracy.
This device has automatic atmospheric pressure compensation for O2 concentrations by means
of a built-in barometric pressure sensor.
6. Man down alarm
PAGE 7 of 10
Falling by breathing dangerous gases can cause serious injury and even fatality to workers.
If the Man down alarm function in ESSAN-20 is set on, ESSAN-20 can detect falls and
send a man down alert which will activ ate the audible and visual alarms and alert other people
in the area.
The man-down detection uses a three-axis accelerometer to automatically monitor the user’s
movements in order to identify a sudden fall/impact and a lack of movement for a period of 6
seconds.
Once alert, people can turn off the current man-down alarm by pressing any one of the two
buttons.
7. Reset Button
Users can reset the unit by pushing a reset button through a hole on back of shell.
MAINTENANCE
Calibration
The ESSAN-20 comes pre-calibrated from the factory. However, the O2 sensor should
be calibrated at least once a year, or as described in your company’s safety procedures. You
can perform the calibration yourself, or you can return it to us for factory calibration at a
nominal fee.
The temperature and humidity sensors do not require calibration and should remain accurate for
the life of your unit.
Cleaning and Storage
PAGE 8 of 10
Apply sparingly with a soft cloth and allow drying completely before using. Do not use soap or
Operating Environment
32°F~122°F (0°C~50°C), <95% RH non-condensing
Storage
14°F~140°F (-10°C~60°C), <99% RH non-condensing
Power Supply
Li-ion battery (4.2V,1500mAh),Micro USB cable w. Wa ll USB charger
Dimensions
3.9x2.0x1.7 Inch (98x50x42mm)
Weight
4.76 oz. (135 grams)
Measurement Range
0 to 25.00% vol.
Resolution
0.01% vol.
Response Time
<15s
Accuracy
Better than 2%FS
Lifetime
>5 years
Tempe rature R ange
14~140°F (-10.0~60.0°C) display
Display Resolution
0.1°F (0.1°C)
Display Options
°F/°C switchable
Accuracy
±0.9°F (±0.5°C)
Response Time
5~30 seconds (device must equilibrate with environment)
Measurement Range
0.0~99.9%RH
Display Resolution
1%RH
Accuracy
±4.5%RH
Response Time
<8 seconds for 63% of step change
Symptom / Issue
Possible Cause / Resolution
Cannot power on
Press the Power Button for more than 5 seconds
Alcohol cleaning. Do not use aromatic hydrocarbons or chlorinated solvents for cleaning.
SPECIFICATIONS
Device Specifications
Sensor Specifications
O2
Tem
perature Sensor Specifications
Rel
ative Humidity Sensor Specifications
TROUBLESHOOTING
PAGE 9 of 10
Check that the Li-ion battery is charged
If monitor is charged but will not turn on, contact support
Reading does not change
In fresh air, you will rarely see oxygen levels change. This is normal.
OXYGEN RECOMMENDED LEVELS
• > 23.5% Oxygen enriched, presents significant fire and explosion risk
• 20.8 - 21% Normal oxygen level in fresh air
• 19.5% Lowest safe oxygen level limit (OSHA)
• <16% Headache, nausea, difficulty performing manual tasks
• < 12% Dif ficulty breathing, impaired coordination and perception
• < 10% Poor judgment and bluish lips
• < 8% Fatal within minutes if not treated
• < 6% Fatal in 40 seconds
SUPPORT
The quickest way to obtain technical support is via email. Please send all support inquires to
info@edaphic.com.au.
Please include a clear, concise definition of the problem and any relevant troubleshooting
information or steps taken so far, so we can duplicate the problem and quickly respond to your
inquiry.
WARRANTY
This meter comes with a 1YEAR (warranty period) limited manufacturer’s warranty, starting from
the date the meter was shipped to the buyer.
During this period of time, CO2Meter.com warrants our products to be free from defects in
materials and workmanship when used for their intended purpose and agrees to fix or replace
(at our discretion) any part or product that fails under normal use. To take advantage of this
warranty, the product must be returned to CO2Meter.com at your expense. If, after examination,
we determine the product is defective, we will repair or replace it at no additional cost to you.
This warranty does not cover any products that have been subjected to misuse, neglect,
accident, modifications or repairs by you or by a third party. No employee or reseller of
CO2Meter.com’s products may alter this warranty verbally or in writing.
LIABILITY
All liabilities under this agreement shall be limited to the actual cost of the product paid to
CO2Meter.com. In no event shall CO2Meter.com be liable for any incidental or consequential
damages, lost profits, loss of time, lost sales or loss or damage to data, injury to person or
personal property or any other indirect damages as the result of use of our products.
RETURNS
If the product fails under normal use during the warranty period, a RMA (Return Material
Authorization) number must be obtained. After the item is received CO2Meter.com will repair
or replace the item at our discretion.
To obtain a RMA number, email info@edaphic.com.au.
If we determine that the product failed because of improper use (water damage, dropping,
tampering, electrical damage etc.), or if it is beyond the warranty date, we will inform you of
the cost to fix or replace the product.
CONTACT US
We are here to help!
For inf ormation or technical support, please contact us.
Edaphic Scientific Pty Ltd
www.edaphic.com.au
info@edaphic.com.au
Ph: 1300 430 928
PAGE 10 of 10
Loading...