Hanna Instruments HI 9143M User Manual
Instruction Manual
HI 9143, HI 9143M
HI 9145
Portable Waterproof
Microprocessor
Dissolved Oxygen Meters
SAMPLE
ppm
°C
HI 9143
Microprocessor
Auto Cal
Dissolved
ON/OFF
Oxygen Meter
CAL
RANGE
HOLD
FACTOR
http://www.hannainst.com
These Instruments are in
Compliance with the CE Directives
Dear Customer,
Thank you for choosing a Hanna Product.
Please read this instruction manual carefully
before using the instrument.
This manual will provide you with the neces-
sary information for a correct use of the instrument, as well as a precise idea of its versatility.
The instrument is in compliance with directives 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
Probe Preparation ...................................... 5
Calibration .................................................. 6
Measurement ............................................. 8
Altitude Compensation ............................. 10
Salinity Compensation ............................. 11
Probe & Membrane Maintenance............. 12
Battery Replacement ................................ 14
Accessories .............................................. 15
Warranty .................................................. 16
CE Declaration of Conformity .................. 17
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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
• AA size batteries (4 each)
• DO Probe with 4m (13’) cable (HI 76407/4)
• (2) PTFE Membranes (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. Any defective items must be
returned in the original packing with the
supplied accessories.
GENERAL DESCRIPTION
The Hanna HI 9143 and HI 9145 are waterresistant, microprocessor-based, autocalibration Dissolved Oxygen meters with ATC.
They have been developed for dissolved
oxygen and temperature measurement in
water and wastewater as well as other
applications such as fish farming.
Dissolved oxygen is indicated in hundredths
of parts per million (ppm=mg/L) or in % of
saturation.
The temperature range is indicated in
centigrade from 0 to 50°C with 0.1°C resolution.
The ppm and the % saturation are both
compensated for changes in solubility of oxygen
in water and for permeability of the membrane
as well as the temperature effect.
Salinity compensation in water allows
determination of mg/L of dissolved oxygen in
1
salty waters and the altitude compensation
readjusts for the altitude variance (HI 9143 only).
Four 1.5V AA alkaline batteries provide power
and make the instrument completely portable.
HI 9143 and HI 9145 are also designed to be
used with a battery recharger or a 12VDC
power supply. A 12VDC input jack is
incorporated into the housing.
A microprocessor ensures an accurate and
rapid calibration and measurement. The case
rugged and water-resistant for maximum
protection in the field as well as in the laboratory.
The dissolved oxygen probe has a membrane
covering the polarographic sensor elements
and a built-in thermistor for temperature
measurement and compensation. The thin
permeable membrane isolates the sensor
elements from the testing solution, but allows
oxygen to enter. When a voltage is applied
across the sensor, oxygen that passes through
the membrane causes a current to flow from
which the oxygen concentration is determined.
FUNCTIONAL DESCRIPTION PROBE
1. D.O. Probe
2. Protective Cap
3. Watertight Shielded
Cable
4. Polypropylene Probe
Body
5. Temperature Sensor
6. O-Ring Seal
7. Silver Chloride Anode
(sensor element)
8. Platinum Cathode
(sensor element)
9. Oxygen Permeable
PTFE Membrane
10.Protective Cap
6
7
8
9
2
3
4
4
5
6
7
8
9
1
2
10
FUNCTIONAL DESCRIPTION
210
1
SAMPLE
3
4
ON/OFF
CAL
67
FACTOR
HI 9143
Microprocessor
Auto Cal
Dissolved
Oxygen Meter
RANGE
ppm
°C
HOLD
2
19
LOBAT
20
SAMPLE
HOLD
21
9
85
CAL
22
ppm
%
F1
F2
°C
1) Battery Compartment
2) Probe Connector
3) Liquid Crystal Display
4) ON/OFF Button
5) CAL Button (to enter or exit calibration mode)
6) FACTOR button (to select altitude F1
and salinity F2)*
7) UP and DOWN arrow keys (to select F1
and F2 levels)*
8) HOLD key (to freeze displayed value)
9) RANGE button (to select ppm or % of
saturation)
10) Power Jack for 12VDC adapter
19) LOW BAT indicator
20) SAMPLE indicator (to indicate the measurement mode)
21) F1 indicator (altitude factor) *
22) F2 indicator (salinity factor) *
23) % or ppm mode indicator
24) Temperature (and factor*) display
* Note: HI 9143 only.
10
23
24
3
SPECIFICATIONS HI 9143 AND HI 9145
HI 9143 HI 9145
Range 0.00 to 45.00
0.0 to 300 %O
mg/L O
2
2
0.0 to 50.0 °C
Resolution
0.01 mg/L O
0.1 %O
2
2
0.1 °C
Accuracy ±1.5% Full Scale mg/L O
(@25°C/77°F) ±1.5% Full Scale %O
2
2
±0.5 °C
EMC ±0.3 mg/L O
Typical ±3.5 %O
2
2
Deviation ±0.5 °C
Calibration Automatic in saturated air
Temperature Automatic from 0 to 50°C
Compensation (32 to 122°F)
Altitude 0 to 1900 m -------
Compensation* 100 m resolution -------
Salinity 0 to 40 g/L -------
Compensation* 1 g/L resolution -------
Operating From 0 to 50°C (32 to 122°F)
Conditions Humidity: 100% maximum
Battery 4x1.5V AA, 200 hours continuous
use. Auto shut-off after 4 hours.
Power plug for 12VDC supply
Dimensions L x W x H: 196 x 80 x 60mm
(7.7 x 3.1 x 2.4")
Shipping 425 g (15 oz.)
Weight Kit: 1.4 Kg (3.1 lb.)
* For HI 9143M, 0.0 to 4.0 Km with 0.1Km
resolution and 0 to 80 g/L with 1 g/L resolution
4
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