Thank you for buying a HOBO Carbon Monoxide logger. With proper care
it will give you years of accurate and reliable measurements.
This manual covers the HOBO Carbon Monoxide logger which is
compatible with the HOBO Shuttle or HandCar running on a Palm
™
handheld allowing for convenient retrieval of data.
Specifications
Measurement Ranges and Accuracy
The HOBO Carbon Monoxide logger has three measurement ranges.
Although normally only one range should be selected, selecting multiple
ranges allows a wider dynamic range without sacrificing resolution at the
low end. Note that selecting multiple ranges results in values being stored
for each range selected, therefore reducing the maximum deployment time
at a given sample rate.
Ranges are selected or viewed by selecting the corresponding channel
shown below.
Logger ranges:
Channel
Nominal range
Actual range
1
0 - 125 ppm
0.2 - 124.3 ppm
2
0 - 500 ppm
1 - 497.1 ppm
3
0 - 2000 ppm
4 - 1988 ppm
Resolution/Accuracy ranges:
Channel
Resolution
Maximum Error (20°C)
Typical Accuracy (20°C)
1
0.5 ppm
±10.5 ppm ±12% of reading
±4.5 ppm ±7% of reading
2
2 ppm
±12 ppm ±12% of reading
±6 ppm ±7% of reading
3
8 ppm
±18 ppm ±12% of reading
±12 ppm ±7% of reading
The CO sensor is temperature compensated over the entire operating
range; however, there may be an additional error that increases as the
temperature gets farther from 20°C. For temperatures from 0°C to 20°C the
readings may be lower by as much as 5% or 5ppm, whichever is greater. For
temperatures from 20°C to 40°C the readings may be higher by as much as
5% or 5ppm, whichever is greater.
Physical shocks or rapid changes in ambient pressure may show up as
spikes in the data.
Common Specifications
Number of measurements: 32,520 maximum
Response time for 90% change: <11 minutes typical
(dependent upon installation location and orientation)
Time accuracy: ±1 minute per week (100 ppm at +68°F or
+20°C), full dependence shown in Plot A
Operating temperature range: +32°F to +104°F
(0°C to +40°C)
Storage temperature: -40°F to +158°F (-40°C to +70°C)
Operating humidity range: 10% to 95% RH, non-condensing
Operating pressure range: 1 Atmosphere ±10%
Cross Gas Interferences: Conforms to UL2034
Size: 5.7" H x 2.6" W x 1.6" D (144 mm x 66 mm x 40 mm)
Weight: 0.29 lbs (0.13 kilograms)
Battery: CR-2032 lithium, user replaceable
Battery life: In normal applications the battery should last one year. In
circumstances where the ambient CO concentration averages 10 ppm or more, the
battery life will be shorter:
Average concentration Battery life
10 ppm
10 months
100 ppm
6 months
1000 ppm
2 months
Expected life of sensor: five years
(Yearly verification is recommended for critical applications.)
Service and Support
HOBO
®
products are easy to use
and reliable. In the unlikely event
that you have a problem with the
hardware or software, please read
the following.
Who do I contact?
Contact the company that you
bought the loggers from: Onset
Computer Corporation or an Onset
Authorized Dealer.
Before calling, you can evaluate
and often solve your problem if you
try the following:
1. Read this manual and the
ReadMe file on the software disk. It
may only take a few moments to get
the answers you need.
2. Write down the events that led to
the problem. Have you changed
anything in your computer
recently? Are you doing anything
differently?
When contacting Onset
Computer Corporation, please
indicate that you need Technical
Support for HOBO
®
products.
Be prepared to:
1. Provide the product number
which is found on the bottom of the
logger, the software version and
serial number if present on the
disk.
2. Provide details on the hardware
and software configuration of your
computer including: manufacturer,
model number, peripherals, and
version of operating system.
3. Completely describe the problem
or question. The more information
you provide, the faster and more
accurately we will be able to
respond.
Onset Technical Support
Onset Computer Corporation
470 MacArthur Blvd.
Bourne, MA 02532
Mailing: PO Box 3450
Pocasset, MA 02559-3450
1-800-LOGGERS (1-800-564-4377)
Phone: (508) 759-9500
Fax: (508) 759-9100
e-mail: loggerhelp@onsetcomp.com
www.onsetcomp.com
Warranty
The HOBO
®
products are warranted
to be free from defects in material
and workmanship for a period of one
year from the date of original
purchase. During the warranty
period Onset will, at its option, either
repair or replace products that prove
to be defective. This warranty is void
if the Onset products have been
damaged by customer error or
negligence or if there has been an
unauthorized modification.
Returning Products to Onset
Direct all warranty claims to
place of purchase. Before returning
a failed unit, you must obtain a
Return Merchandise Authorization
(RMA) number from Onset. You must
provide proof that you purchased the
Onset product(s) directly from Onset
(purchase order number or Onset
invoice number). Onset will issue an
RMA number that is valid for 30
days. You must ship the product(s),
properly packaged against further
damage, to Onset (at your expense)
with the RMA number marked
clearly on the outside of the package.
Onset is not responsible for any
package that is returned without a
valid RMA number or for the loss of
the package by any shipping
company. Loggers must be clean and
free of any toxins before they are sent
back to Onset or they may be
returned to you.
Repair Policy
Products that are returned after the
warranty period or that are damaged
by the customer as specified in the
warranty provisions can be returned
to Onset with a valid RMA number
for evaluation.
ASAP Repair Policy
For an additional charge, Onset will
expedite the repair of a returned
product.
Optional Services
Please contact Onset for more
information and prices on:
Data-back
™
Service
HOBO
®
data loggers store data in
nonvolatile EEPROM memory. Onset
will, if possible, recover your data to
a disk.
Tune Up
™
Service
Onset will examine and retest any
HOBO
®
data logger.
