cootwo User Manual – Rev. 20170512 ©2017 DiveNav, Inc. – www.divenav.com
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WARNING: If you plan to perform an Carbon
Monoxide sensor calibration by using ambient air make
sure you are far from sources of pollution like cars,
trucks, boats and that you let cootwo ambient for at
least 5 minutes before performing the calibration as the
gas flow within the device is reduced and a shorter
period might produce incorrect results.
We recommend you perform the ZERO point calibration
frequently.
8.2.2
SPAN Calibration
The procedure to perform the SPAN calibration is similar
to the one used for the ZERO point calibration; the most
notable difference is that you will need to use a certified
calibration gas containing 20ppm of Carbon Monoxide.
8.3
CO Sensor Replacement
You can replace the Carbon Monoxide sensor yourself
or send your cootwo back to us for service and sensor
replacement.
If you want to replace the CO sensor yourself you will
need first to open cootwo by removing the 3 screws on the
back of the unit and the large O-ring on the tank adapter.
Then unplug the CO sensor from the board and replace
it with the new one and close the unit.
WARNING: the Carbon Monoxide sensor contains
chemicals which can cause burns if they come in
contact with eyes, skin and other body parts. Dispose
of the Carbon Monoxide sensor according to local
regulations.
After you have physically replaced the sensor you will
need to properly program the analyzer; to do so go to the
CO SEN sub-menu, scroll down to the CHANGE sub-menu
and enter it.
Now, PUSH the button to confirm
that you have replaced the Carbon
Monoxide sensor and cootwo will
acknowledge it and turn off after a few
seconds.
Please note that when you replace the Carbon
Monoxide sensor you will need to calibrate the new sensor;
first you will need to perform the ZERO point calibration
using a gas containing 0 ppm CO and then you will need to
perform the SPAN calibration.
WARNING: After replacing a Carbon Monoxide
sensor you will need to make sure that cootwo is
properly powered (battery is almost full) and wait at
least 4 hours before you can proceed with the CO
sensor calibration. Performing a CO sensor calibration
too soon after a sensor replacement might produce
incorrect results.
9 BATTERY
cootwo is equipped with a user replaceable LIR 10440
AAA 3.7V rechargeable battery that can be easily recharged
using the provided USB cable. We strongly recommend you
keep the battery properly charged all times.
WARNING: If you do not keep the battery properly
charged the battery might die off and you might not be
able to recharge it all.
WARNING: If you let the battery become very empty
or even die, it might take several hours to recharge it.
WARNING: If you let the battery die, the Carbon
Monoxide sensor might loose power. When the Carbon
Monoxide looses power it will loose its bias. Once you
re-apply power to the Carbon Monoxide sensor it might
need several hours to recover its original status.
10 WARRANTY
DiveNav, Inc. (the “Company”) warranty obligations for
cootwo (the “Product”) are limited to the terms set forth in
this document as well as those set forth in the Warranty
section of the company website.
Company warrants the Product against substantial
defects in material and workmanship under normal use for a
period of one (1) year from the date of original purchase
(the “Limited Warranty”).
This Limited Warranty is non-transferable and covers
only the original purchaser.
An original or copy of the sales receipt from the original
sales retailer or Company website is required to validate the
warranty coverage.
This Limited Warranty does not cover the battery and
products purchased through non-authorized dealers.
Warranty claims must be made directly to the Company.
10.1
Limitation of Liability
IN NO EVENT SHALL COMPANY, NOR ITS
AFFILIATES, NOR ITS EMPLOYEES, OFFICERS,
DIRECTORS, AGENTS, CONTRACTORS,
DISTRIBUTORS, SUPPLIERS OR ASSIGNS (THE
“RELEASED PARTIES”) BE LIABLE TO YOU OR ANY
THIRD PARTY FOR ANY INDIRECT, INCIDENTAL,
CONSEQUENTIAL, SPECIAL, EXEMPLARY OR PUNITIVE
DAMAGE ARISING OUT OF THE USE OF THE
PRODUCT, INCLUDING, WITHOUT LIMITATION,
PROPERTY DAMAGE, LOSS OF VALUE OF THE
PRODUCT, DEATH, INJURY OR ANY OTHER DAMAGES
THAT MAY BE CAUSED TO YOU, YOUR FAMILY, HEIRS,
ESTATE OR ASSIGNS. NOTWITHSTANDING ANY
DAMAGES THAT YOU MIGHT INCUR FOR ANY REASON
WHATSOEVER (INCLUDING, WITHOUT LIMITATION, ALL
DAMAGES REFERENCED HEREIN) AND ALL DIRECT
OR GENERAL DAMAGES IN CONTRACT, TORT
(INCLUDING NEGLIGENCE AND OTHERWISE), THE
ENTIRE LIABILITY OF THE COMPANY SHALL BE
LIMITED TO THE AMOUNT ACTUALLY PAID BY YOU
FOR THE PRODUCT. SOME STATES DO NOT ALLOW
THE EXCLUSION OR LIMITATION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE
LIMITATIONS OR EXCLUSIONS MAY NOT APPLY TO
YOU.
10.2
Exclusions and Limitations
Company’s Limited Warranty applies only to the
Product. The warranty does not apply to any non-Company
products, even if packaged or sold with the Product. This
warranty does not apply to damage caused by abuse,
misuse, accident, tampering, force majeure, or modifications
of the Product.