Hanna Instruments HI 991003 User manual

HI991003
Extended Range Waterproof
pH, ORP & Temperature Meter
INSTRUCTION MANUAL

Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before
using this meter.
This manual will provide you with the necessary
information for correct use of this meter, as well as a
precise idea of its versatility.
If you need additional technical information, do not
hesitate to e‑mail us at [email protected] or view
our worldwide contact list at www.hannainst.com.
Dear
Customer,
All rights are reserved. Reproduction in whole or in part is prohibited
without the written consent of the copyright owner, Hanna
Instruments Inc., Woonsocket, Rhode Island, 02895, USA.

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TABLE OF CONTENTS
Preliminary examination ...........................................
General description and Intended use ........................
Main features...........................................................
Specifications...........................................................
Display description ...................................................
Operational guide.....................................................
Meter setup..............................................................
Battery replacement..................................................
Accessories...............................................................
Electrode maintenance..............................................
Certification..............................................................
Recommendations for users.......................................
Warranty .................................................................
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6
8
14
16
7
9
17
15
4
18
19
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PRELIMINARY EXAMINATION
PRELIMINARY EXAMINATION
Remove the instrument and accessories from the packaging
and examine it carefully to make sure that no damage
has occurred during shipping. Notify your nearest Hanna
Instruments Customer Service Center if damage is observed.
Each HI991003 is delivered in a rugged carrying case and
is supplied with:
• HI12973 pH/ORP/temperature probe with titanium
body, DIN connector and 1m (3.3’) cable
• HI70004 pH 4.01 buffer (1 sachet)
• HI70007 pH 7.01 buffer (1 sachet)
• HI700601 pH and ORP electrode cleaning solution
(2 sachets)
• 100 mL beaker (1 pc.)
• 1.5V AAA alkaline batteries
• Instrument quality certificate
• Electrode quality certificate
• Instruction manual
Note: Save all packing material until you are sure that
the instrument works correctly. Any damaged or defective
item must be returned in its original packing material
with the supplied accessories.

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GENERAL DESCRIPTION AND INTENDED USE
The HI991003 portable pH and ORP meter together with
HI12973 pH electrode is designed to measure pH and ORP
in manufacturing and environmental testing protocols.
The HI991003 is a lightweight, portable meter. It features
a two button operation system and is simple to use. It has
a waterproof and compact casing, large three‑line display,
and automatic pH calibration at one or two points.
The HI12973 pH/ORP probe has a built‑in temperature
probe and preamplifer to provide stable measurements
in electrically noisy environments. The pH sensor has a
cylindrically shaped tip and uses a single junction gel filled
Ag/AgCl reference with a cloth junction. The ORP sensor
is made of platinum and uses the same reference. ORP
voltages are referenced to the Ag/AgCl reference with 3.5M
KCl activity.
GENERAL DESCRIPTION AND INTENDED USE

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MAIN FEATURES
• Simultaneous pH, ORP and temperature measurements
on a large three‑line LCD display
• Automatic pH calibration at one or two points within
two memorized buffer sets (standard or NIST)
• Selectable temperature unit (°C or °F)
• Electrode condition indicator
• mV of pH measurement for electrode check
• HI12973 dedicated pH/ORP probe with integrated
temperature sensor
• Probe quick connect system
• Battery life indication and low battery detection
• Keystroke confirmation tone
• Auto‑off function
• Waterproof casing IP67
MAIN FEATURES

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SPECIFICATIONS
Range*
‑2.00 to 16.00 pH / ‑2.0 to 16.0 pH
±825 mV (pH‑mV)
±1999 mV (ORP)
‑5.0 to 105.0 °C / 23.0 to 221.0 °F
Resolution
0.01 pH / 0.1 pH
1 mV
0.1 °C / 0.1 °F
Accuracy
@ 25°C / 77°F
±0.02 pH / ±0.1 pH
±1 mV (pH‑mV)
±2 mV (ORP)
±0.5 °C up to 60 °C; ±1.0 °C outside
±1.0 °F up to 140 °F; ±2.0 °F outside
Temperature
compensation
Automatic ‑5.0 to 105.0 °C/23.0 to
221.0 °F
pH calibration
Automatic, 1 or 2 point selectable buffer
set Standard (4.01, 7.01, 10.01) or
NIST (4.01, 6.86, 9.18)
Probe (included)
HI12973 preamplified pH, ORP and
temperature probe with cloth junction,
DIN connector and 1 m (3.3’) cable
Battery type/life 1.5V AAA (3 pcs.) approx. 1400 hours
of continuous use
Auto‑off user selectable: after 8 min, 60 min or
disabled
Environment 0 to 50 °C (32 to 122 °F)
RH max. 100%
Meter dimensions 154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)
Weight
(with batteries) 196 g (6.91 oz.)
Case ingress
protection rating IP67
* the HI12973 is limited to be used from 0 to 13 pH and from
0 to 80°C temperature (32 to 176 °F).
SPECIFICATIONS

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DISPLAY DESCRIPTION
1 pH calibration buffer(s) used
2 Stability indicator
3 Primary LCD
4 Battery percentage
5 Secondary LCD
6 Electrode condition indicator
7 Low battery indicator
8 Measurement unit
9 Automatic Temperature Compensation indicator
10 Tertiary LCD
11 Temperature unit
12 Meter modes indicator
DISPLAY DESCRIPTION

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OPERATIONAL GUIDE
OPERATIONAL GUIDE
Each meter is supplied with batteries. Before using the meter
for the first time, open the battery compartment and insert
batteries, observing the polarity (see “Battery Replacement“).
CONNECTING THE ELECTRODE
With the meter turned off, connect the HI12973 probe to the
DIN socket on the bottom of the meter by aligning the pins
and pushing in the plug firmly. Remove the protective cap
from the probe before taking any measurements.
TURNING THE METER ON
To turn the meter ON, press the button on
the front of the meter. If it does not turn on, make
sure that the batteries are properly installed in their place.
The meter is provided with an active acoustic signal when
a key is pressed.
At start‑up the meter displays all LCD segments for a few
seconds, followed by the percentage indication of the remaining
battery life, displaying “WAIT“ until electrode check is in
process then the meter enters the normal measurement mode.
Battery life
Measurement
mode
LCD
check up
→ →
→
Electrode
check
Note: The meter detects the presence and the type of the
probe at its input.
- If the probe is not connected the message “NO”
”PROBE“ appears alternatively on the tertiary LCD.
- If the probe is not compatible “WRONG” ”PROBE“
message appears alternatively on the tertiary LCD.
-CompatiblepH probes:HI12963, HI10483,HI12943.
If one of these probes are detected “NoORP“message
is displayed at start-up and “---“ message displayed on
the secondary LCD while in measurement mode.

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OPERATIONAL GUIDE
- If the readings are out of range, the nearest range limits
are displayed blinking (e.g. -2.00 pH -5.0 °C).
SELECTING MEASUREMENT RANGE
While in measurement mode, press the SET button to select
pH or pH‑mV measurement on the first LCD line.
FREEZING MEASUREMENT VALUES
While in measurement mode, press and hold the SET
button until “HOLD“ appears on the tertiary LCD. The
“HOLD“ remains for 1 second and reading of pH, ORP
and temperature will be frozen on the LCD with“H” blinking.
→
Press any button to resume active measurements.
ENTERING CALIBRATION MODE
Press and hold the button until ”POWER” and tag
is replaced by “STD“ and tag. Release the button.
ENTERING SETUP MODE
Press and hold button until “STD“ and tag is
replaced by “SETUP“ and tag. Release the button.
TURNING THE METER OFF
Whileinmeasurement mode,pressthe button.”POWER”
and tag will appear. Release the button.
pH MEASUREMENT & CALIBRATION
Make sure the meter has been calibrated before use.
If the probe is dry, soak it in HI70300 storage solution for
30 minutes to reactivate it. If soiled, clean the electrode
by soaking in cleaning solution for
20 minutes, then rinse the tip and
soak in storage solution at least 30
minutes before use. Rinse the electrode
off well and shake off excess droplets.
Recalibrate before using.
Submerge the probe in the sample to be tested while stirring
it gently. Wait until the tag on the LCD disappears.