background image

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.

Reviews: