Hanna Instruments Pool Line HI981914 User manual

INSTRUCTION MANUAL
HI981914
Professional Waterproof Portable
pH/ORP/ISE Meter

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.
Thank you for choosing a Hanna Instruments product.
Please read this instruction manual carefully before using this instrument.
This manual will provide you with the necessary information for correct use of this
instrument, 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,

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TABLE OF CONTENTS
TABLE OF CONTENTS
1. PRELIMINARY EXAMINATION ............................................................................................... 5
2. METER SPECIFICATIONS...................................................................................................... 6
3. HI72911B - PROBE SPECIFICATIONS................................................................................... 7
4. GENERAL DESCRIPTION....................................................................................................... 8
5. FUNCTIONAL DESCRIPTION.................................................................................................. 9
6. MAINTENANCE ................................................................................................................. 11
7. GENERAL OPERATIONS...................................................................................................... 13
7.1. BATTERY REPLACEMENT .......................................................................................... 13
7.2. CONNECTING THE PROBE......................................................................................... 14
7.3. TURNING THE METER ON......................................................................................... 14
7.4. BACKLIGHT FEATURE............................................................................................... 14
8. METER SETUP .................................................................................................................. 15
8.1. GENERAL PARAMETER SCREENS............................................................................... 16
8.2. PROBE SPECIFIC PARAMETERS................................................................................. 20
9. CALIBRATION ................................................................................................................... 23
9.1. pH CALIBRATION..................................................................................................... 23
9.2. pH BUFFER TEMPERATURE DEPENDENCE.................................................................. 30
9.3. RELATIVE mV CALIBRATION ..................................................................................... 31
9.4. ISE CALIBRATION.................................................................................................... 31
10. TEMPERATURE CORRELATION FOR pH SENSITIVE GLASS.................................................... 35
11. mV & TEMPERATURE CALIBRATION (for technical personnel only)....................................... 36
12. MEASUREMENT.............................................................................................................. 38
12.1. pH MEASUREMENT............................................................................................... 38
12.2. ORP MEASUREMENT............................................................................................. 39
12.3. RELATIVE mV MEASUREMENT................................................................................ 39
12.4. ISE MEASUREMENT .............................................................................................. 40
12.5. TEMPERATURE MEASUREMENT.............................................................................. 40
13. GOOD LABORATORY PRACTICE (GLP)................................................................................. 41
14. LOGGING........................................................................................................................ 42
14.1. LOGGING THE CURRENT DATA ................................................................................ 42
14.2. VIEW LOGGED DATA .............................................................................................. 42
14.3. AUTOEND............................................................................................................. 42

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TABLE OF CONTENTS
15. PC CONNECTION............................................................................................................. 43
15.1. HI92000 – HANNA PC SOFTWARE......................................................................... 43
15.2. REMOTE CONNECTION VIA USB CABLE.................................................................... 43
16. TROUBLESHOOTING GUIDE ............................................................................................. 48
17. ACCESSORIES................................................................................................................. 49
CERTIFICATION...................................................................................................................... 53
RECOMMENDATIONS FOR USERS............................................................................................ 53
WARRANTY ........................................................................................................................... 54

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PRELIMINARY EXAMINATION
1. PRELIMINARY EXAMINATION
Remove the instrument and accessories from the packaging and examine it carefully. For further
assistance, please contact your local Hanna Instruments Office or email us at [email protected].
HI981914 is delivered in a rugged carrying case and is supplied with:
• HI72911B pH electrode with built-in temperature sensor
• HI7662 Temperature probe
• pH 4.01 & 7.01 buffer solutions (230 mL each)
• HI7006014 General purpose cleaning solution (3 pcs.)
• 100 mL plastic beaker (2 pcs.)
• 1.5V AA batteries (4 pcs.)
• HI920015 Micro USB cable
• Instrument 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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METER SPECIFICATIONS
2. METER SPECIFICATIONS
pH
Range -2.0 to 20.0 pH / -2.00 to 20.00 pH / -2.000 to 20.000 pH
Resolution 0.1 pH / 0.01 pH / 0.001 pH
Accuracy ±0.1 pH / ±0.01 pH / ±0.002 pH
mV
Range ±2000 mV
Resolution 0.1 mV
Accuracy ±0.2 mV
ISE
Range From 1.00 E-7 to 9.99 E10 concentration
Resolution 3 digits 0.01, 0.1, 1, 10 concentration
Accuracy ±0.5% of reading (monovalent ions)
±1% of reading (divalent ions)
Temperature -20.0 to 120.0 °C (-4.0 to 248.0 °F)
Rel mV Offset Range ±2000 mV
pH Calibration Up to five point calibration using seven standards
(pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45), and five custom buffers
Slope Calibration From 80 to 110%
ISE Calibration Up to five point calibration points using six standard solutions
(0.1, 1, 10, 100, 1000, 10000 ppm)
Temperature Compensation Manual or Automatic from -20.0 to 120.0 °C (-4.0 to 248.0 °F)
pH Electrode HI72911B pH & temperature
Logging Memory 300 records, log-on-demand (100 records per range)
Input Impedance 10¹² Ω
Battery Type/Life 1.5V AA batteries / approximately 200 hours of continuous use
without backlight (50 hours with backlight)
Auto Power Off 5, 10, 30, 60 minutes or disabled
PC Interface Opto-isolated USB
Dimensions 185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”)
Weight 400 g (14.2 oz)
Environment 0 to 50 °C (32 to 122 °F) max. RH 100% IP67

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HI72911B - PROBE SPECIFICATIONS
3. HI72911B - PROBE SPECIFICATIONS
pH Range 0 to 13 pH
Reference Double, Ag/AgCl
Junction PTFE
Electrolyte Polymer
Maximum Pressure 3.0 bar
Operating Temperature 0 to 80 °C (32 to 176 °F)
Body Material Titanium
Glass Type GP (General Purpose)
Tip / Shape Flat
Body Length / Overall Length 110 mm / 150.5 mm
Temperature Sensor Yes
Outer Diameter 14 mm
Cable Coaxial, 1 m (3.3’) long
Connector Type BNC + phono

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GENERAL DESCRIPTION
4. GENERAL DESCRIPTION
HI981914 is a heavy-duty, portable pH/ORP/ISE meter with the features of a benchtop meter, part
of Hanna Instruments pool-line family.
The pH probe can be exchanged out for an ORP probe to obtain mV readings in the ±2000 mV
range. HI981914 adds direct ion concentration readings for ISEs with a choice of units for calibration
and display.
Main features
• Seven standard buffers (pH 1.68, 4.01, 6.86, 7.01, 9.18, 10.01 and 12.45) for calibration
• pH calibration up to five calibration points
• Custom calibration with up to five custom buffers
• Messages on the graphic LCD for an easy and accurate calibration
• CAL Check®diagnostic features to alert the user when the electrode needs cleaning
• Optional, user enabled, “Outside Calibration Range” warning
• Monitoring of electrode condition
• User selectable “Calibration Time Out”
• Temperature range from -20 to 120 °C (-4 to 248 °F) using the integrated temperature sensor
Other features
• Relative mV measurements
• Log on demand up to 300 samples (100 samples per range)
• Auto Hold feature, to freeze first stable reading on the LCD
• GLP feature, to view last calibration data for pH, Rel mV, or ISE
• PC interface

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FUNCTIONAL DESCRIPTION
5. FUNCTIONAL DESCRIPTION
Front View
1. Liquid Crystal Display (LCD)
2. Functional keys, press to perform the function displayed above them on the screen
3. / keys, press to scroll the displayed options and messages
4. Power ( ) ON/OFF key, press to turn the instrument on and off
5. LIGHT ( ) key, press to turn the backlight on and off
6. GLP key, press to display stored calibration data
7. CAL key, press to enter or exit calibration mode
8. SETUP key, press to enter or exit setup mode
9. RCL key, press to enter or exit view logged data
10. MODE key press to change pH resolution or to toggle between mV and Rel mV mode
11. RANGE key, press to switch between pH, mV and ISE range
12. HELP key, press to display the context sensitive help menu
13. ESC key, press to return to the previous screen
14. Soft key functions defined on display
15. Temperature compensation status
16. Battery level indicator

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FUNCTIONAL DESCRIPTION
Top View
1. Input for temperature probe
2. USB connector
3. BNC electrode connector
4. Input for reference electrode