PRELIMINARY EXAMINATION
Remove the instrument from the packing material
and examine it to make sure that no damage has
occurred during shipping. If there is any
damage, notify your Dealer.
In addition to this manual you should find the
following items:
•
D.O. meter
•
4 x 1.5V AA batteries
•
DO Probe (HI 76407/4)
•
Membrane cap (HI 76407A)
•
Protective cap
•
30 mL electrolyte solution (HI 7041S)
•
Rugged carrying case
Note: Save all packing material until you are
sure that the instrument functions
correctly. All defective items must be
returned to us in the original packaging
with the supplied accessories.
GENERAL DESCRIPTION
Hanna Instruments' HI 9142 is a water-resis-
tant, Dissolved Oxygen meter with Automatic
Temperature Compensation. It has been devel-
oped for dissolved oxygen measurement in
water and wastewater applications as well as
other applications such as fish farming.
Dissolved oxygen is indicated in tenths of parts
per million (ppm=mg/l) .
Four 1.5V AA batteries provide power and make
the instrument completely portable.
The meter is housed in a rugged water-resistant
case for maximum protection in the field as well
as in the laboratory.
The dissolved oxygen probe has a membrane
covering the polarographic sensors and a built-
1
Dear Customer,
Thank you for choosing a Hanna Instruments
Product.
Please read this instruction manual carefully
before using the instrument.
This manual will provide you with all the neces-
sary information for the correct use of the
instrument, as well as a precise idea of its
versatility in a wide range of applications.
This instrument is in compliance with
direc-
tives EN 50081-1 and 50082-1.
TABLE OF CONTENTS
Preliminary Examination ............................. 1
General Description ..................................... 1
Functional Description Probe ...................... 2
Functional Description Meter ....................... 3
Specifications ............................................. 4
Initial Probe Preparation .............................. 5
Calibration Procedure .................................. 6
Taking Measurements ................................. 8
Altitude and Salinity Compensation ............. 9
Probe & Membrane Maintenance .............. 11
Battery Replacement ................................ 13
Accessories .............................................. 14
Warranty ................................................... 15
Other Products from Hanna ....................... 16
CE Declaration of Conformity .................... 17
ISO 9000 Certified
Company since 1992
