Hanna Instruments HI 991001 User manual

HI991001
Extended Range Waterproof
pH, 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 Instru-
ments Inc., Woonsocket, Rhode Island, 02895, USA.

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TABLE OF CONTENTS
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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5
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15
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13
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PRELIMINARY EXAMINATION
Remove the meter from the packing material and examine
it carefully to make sure that no damage has occurred
during shipment. If noticeable damage is evident, contact
your local Hanna Instruments Office.
Each meter is supplied complete with:
• HI12963 pH/temperature probe with titanium body and
DIN connector with 1m (3.3’) cable
• pH 4.01 & 7.01 Buffer sachet
• HI700601 General Electrode cleaning solution (2
sachets)
• 100 mL beaker (1 pcs.)
• Alkaline batteries: 1.5V AAA (3 pcs.)
• Rugged carrying case
• Calibration certificate of meter
• Calibration certificate of probe
• Instruction manual
Note: Save all packing material until you are sure that
the meter functions correctly. All defective items must
be returned in the original packing together with the
supplied accessories.

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HI991001 is a durable, portable, pH and temperature
meter used for most pH measurements encountered in
manufacturing and environmental testing protocols.
The meter is provided with a very rugged titanium bodied
electrode with built‑in temperature sensor for temperature
compensated pH and temperature readings. It also contains
an integral pH sensor preamplifier to provide stable
measurements in electrically noisy environments.
GENERAL DESCRIPTION and INTENDED USE

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Main features:
• Simultaneous pH and temperature measurements on a
large dual‑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
• HI12963 dedicated pH with integral 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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Range*
‑2.00 to 16.00 pH / ‑2.0 to 16.0 pH
±825 mV (pH‑mV)
‑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
@ 20°C / 68°F
±0.02 pH / ±0.1 pH
±1 mV (pH‑mV)
±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)
HI12963 preamplified pH and
temperature probe with titanium body,
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”)
Meter Mass
(with batteries) 196 g (6.91 oz.)
Case Ingress
Protection Rating IP67
* the HI12963 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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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 Third LCD
11 Temperature unit
12 Meter modes indicator
DISPLAY DESCRIPTIONOPERATIONAL 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“).
TO CONNECT THE ELECTRODE
With the meter turned off, connect the HI12963 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.

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OPERATIONAL GUIDE
TO TURN 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, the meter enters
the normal measurement mode.
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 secondary LCD
with “---“ blinking on the first LCD line.
- If the probe is not compatible “WRONG” ”PROBE“
message appears alternatively on the secondary LCD
with “---“ blinking on the first LCD line.
- If the readings are out of range, the nearest range
limits are displayed blinking (E.g. -2.00 pH -5.0 °C).
TO SELECT THE MEASUREMENT RANGE
While in measurement mode, press the SET button to select
pH or pH‑mV measurement on the first LCD line.
Battery life
Measurement
mode
LCD
check up
→ →
→
Electrode
check

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OPERATIONAL GUIDE
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 fouled, 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.
The LCD displays the pH value (automatically compensated
for temperature) on the primary LCD, while the secondary
→
TO FREEZE THE MEASUREMENT VALUES
While in measurement mode, press and hold the SET
button until “HOLD“ appears on the secondary LCD. The
“HOLD“ remains for 1 second and reading of pH, mV and
temperature will be frozen on the LCD with “H” blinking.
Press any button to resume active measurements.
TO ENTER CALIBRATION MODE
Press and hold the button until ”POWER” and tag
is replaced by “STD“ and tag. Release the button.
TO ENTER SETUP MODE
Press and hold button until “STD“ and tag is re‑
placed by “SETUP“ and tag. Release the button.
TO TURN THE METER OFF
Whileinmeasurementmode,pressthe button.”POWER”
and tag will appear. Release the button.