Hanna Instruments HI6321 User manual

Hanna Instruments Inc., 584 Park East Drive, Woonsocket, RI 02895 USA
www.hannainst.com
INSTRUCTION MANUAL
HI6321
Advanced Conductivity
Benchtop Meter

Dear Customer,
Thank you for choosing a Hanna Instruments®product.
Please read this instruction manual carefully before using this instrument as it provides 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].
Visit www.hannainst.com for more information about Hanna Instruments and our products.
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. Hanna Instruments reserves the right to modify the design,
construction, or appearance of its products without advance notice.
TABLE OF CONTENTS
1. Preliminary Examination .................................... 3
2. Safety Measures ................................................ 3
3. User Interface – Icons ........................................ 4
4. General Description & Intended Use .................... 6
5. Specifications .................................................... 8
5.1. Instrument ............................................. 8
5.2. HI7631233 Probe ................................ 11
6. Functional & LCD Description ............................ 12
6.1. Main Unit ............................................. 12
6.2. Probe ................................................... 14
7. Getting Started ................................................ 15
7.1. Installing the Holder .............................. 15
7.2. Using the Holder ................................... 16
7.3. Connecting the Probe, Keyboard, Printer .. 16
7.4. Powering the Unit & Selecting Operating
Language and Regional Preferences ....... 17
7.5. Basic Operations ................................... 17
8. System Menu Items ........................................ 18
8.1. Users ................................................... 18
8.2. System Settings .................................... 22
8.3. Measurement Settings .......................... 27
8.4. Log Recall ............................................ 30
8.5. Help .................................................... 36
9. Measurement & Probe Setup Menu ................... 37
9.1. Calibration ........................................... 37
9.2. Reading ............................................... 38
9.3. Temperature ......................................... 40
9.4. View .................................................... 42
9.5. Alarms ................................................. 45
9.6. Logging ................................................ 46
9.7. Profiles ................................................. 47
10. Calibration .................................................... 48
10.1. Conductivity Calibration ....................... 49
10.2. Procedure .......................................... 49
10.3. Salinity Calibration .............................. 51
11. Measurement ................................................ 52
11.1. Measurement Tips ............................... 52
11.2. Direct Readings ................................... 53
11.3. Direct / Autohold Readings .................. 53
12. Logging ........................................................ 54
12.1. Automatic Logging .............................. 55
12.2. Manual Logging .................................. 55
12.3. Autohold Logging ................................ 56
13. Maintenance ................................................. 57
14. Error Messages .............................................. 58
15. Accessories ................................................... 58
Certification ......................................................... 59
Recommendations for Users .................................. 59
Warranty ............................................................. 59
Regulatory Notices for the Wi‑Fi Module ................. 60

1. PRELIMINARY EXAMINATION
HI6321 is Hanna’s
®
advanced benchtop conductivity meter with a large touch screen display and streamlined design.
Each HI6321 is supplied with:
• HI7631233 EC and resistivity probe
• HI764060 electrode holder with following accessories:
•base plate (with integrated pivot pin) and screw (requires installation)
•cable holder clip, attached
•electrode holder with adapter, attached
• EC calibration starter kit consisting of:
•1413 μS/cm standard solution (4 sachets)
•12880 μS/cm standard solution (2 sachets)
•5000 μS/cm standard solution (2 sachets)
• Electrode rinse solution (2 sachets)
• 24 VDC power adapter
• USB‑C to USB‑A cable
• Probe quality certificate
• Quick reference guide
• Instrument quality certificate
Note: Save all packing material until you are sure the instrument works correctly. Any damaged or defective
item must be returned in its original packing material with the supplied accessories.
2. SAFETY MEASURES
Handling & Usage Precautions
The unit, while not fragile, can be damaged by improper handling and usage.
• Transport the unit with all cables removed.
• Keep the unit on a stable and even surface, away from contact with liquid.
• Avoid excessive dirt and dust.
• Protect the unit from contact with food, oils, and chemicals.
• If the device becomes wet, gently wipe the exterior with a clean, dry cloth.
• Keep away from direct sunlight.
• Use in a safe place that is appropriate to application requirements.
• Use attachments and accessories specified in this manual only.
• Capacitive touchscreen and buttons – operate without applying pressure.
• Do not puncture the capacitive touchscreen or drop the unit.
• Do not use the device near heat sources.
• Do not place objects on top of the device.
• Do not insert objects into the ports, spaces around keys, other than the intended cable, USB drive.
3 Preliminary Examination

3. USER INTERFACE – ICONS
Capacitive keys Description
Back – return to a previous hierarchical menu level
Home – access to measurement screen & configured profile
Menu – access to Users, System Settings, Measurement Settings, Log Recall, Help
Main menu Description
Users – login & rights configuration
System Settings – system configuration, connectivity & printing items
Measurement Settings
Log Recall – access logged measurement data
Help – access support
Measurement Description
Measurement Menu, accessed from measurement screen
EC and resistivity probe
Autohold applied
EC / Res / TDS / Sal Autohold, pending stable measurement
/ Warning on standby / active function
Logging Description
/
# 00002
00:00:12 Start/Stop logging (current index and time since log start)
M
/
M
# 00012
Manual logging (current index)
D
Triggers log session, pending next stable measurement
AAutohold logging in progress
/ Annotated text/Annotated text in use
0% 25% 50%
75% 100%
Available file storage capacity
(at full capacity the icon is displayed blinking)
User Interface – Icons 4

Log recall Description
/ Table view – function active/not selected
/ Graph view – function active/not selected
/ Information view – function active/not selected
General Description
Measurement profile
Background operation in progress
Active alarm set
Unstable
Stable
Autohold
Stability/Autohold indicator
Connectivity & Printing Description
Ethernet
Connection established (tap for IP address)
0.5 sec Connection in progress
Connection error
Wi-Fi
Connection established (tap for IP address)
0.5 sec Connection in progress
Connection error
USB
USB‑A or USB‑C key plugged in
High‑power consumption with key plugged in
PC
PC connection established through USB‑C port
Printer
Printer connected –printing manual log option enabled
Printer connected –printing manual log option disabled
Printer not recognized or no longer connected
5 User Interface – Icons

4. GENERAL DESCRIPTION & INTENDED USE
HI6321 is an advanced benchtop meter with a capacitive display, comprised of a housing and an integrated
conductivity measurement module. Compact and easy to operate, the meter is delivered with HI7631233
ECand resistivity probe.
HI7631233 is a platinum, four‑ring probe with an integral temperature sensor that adjusts the measured
conductivity to a reference temperature by applying compensation algorithms:
•
linear: when the temperature coefficient of variation has the same value for all measurement temperatures
• standard: for high‑purity water measurements (>1 MΩ • cm resistivity) and documented in ASTM Standard
D5391‑14
•
natural: for natural ground, well, or surface water (water with similar composition) as per ISO7888 standard
The result is reliable electrolytic conductivity, resistivity, TDS (Total Dissolved Solids), or Salinity (expressed in
percent, PSU, or ppt units).
TDS is a calculated value based on the conductivity of the solution (TDS = factor × EC25). A TDS factor is a
conversion factor used to change an EC measurement to a ppm measurement.
Sal PSU: The practical salinity of seawater relates the ratio of electrical conductivity of a normal seawater
sample at 15 °C and 1 atmosphere to a potassium chloride solution (KCl) with a mass of 32.4356 g/Kg water
at the same temperature and pressure. Under these conditions the ratio is equal to 1 and S=35. The practical
salinity scale may be applied to values 0 through 42.00 PSU at temperatures between 0 to 35 °C.
Sal ppt: measurements expressed in ppt are based on the Natural Seawater Scale that extends from 0.00 to
80.00 g/L and covers 10 to 31 °C temperature range. It determines the salinity based upon a conductivity ratio
of sample to standard seawater at 15 °C and an approximate salinity value of 35 in seawater.
Sal %: in this scale 100 % salinity is equivalent to roughly 10 % solids.
This system responds to a complex range of measurement and monitoring requirements, providing accuracy,
reproducibility, and reliability.
HI6321 is supplied with an electrode holder that has a flexible arm. The holder can be mounted quickly and
provides secure support for electrodes while taking measurements in sample containers.
This benchtop meter supports:
• USB type A – support for USB stick, printer, keyboard
• USB type C – support for USB stick, PC connection
The user can select between five different views.
• Basic measurement configuration
• Simple GLP with calibration information
• Full GLP with probe status and calibration point details
• Live updated, interactive graph
• Tabulated data with date, time, and notes
Capacitive touch screen with multi-touch support
The benchtop unit has a 7‑inch color display with resolution of 800×480. The capacitive, multi‑touch screen
supports video playback and data plotting.
General Description & Intended Use 6

Main Features
Calibration & Measurement
• Measure
`Conductivity –μS/cm or mS/cm
`Resistivity –Ω•cm, kΩ•cm, MΩ•cm
`TDS – ppm or ppt
`Salinity – ppt, PSU, %
• Application‑specific profiles for quick and direct measurement without the need to update the sensor and
system settings
• Active log during measurement
• Measurement stability indicator (using the Stability Criteria setting)
• Reading modes: direct and direct/autohold
• Temperature source (Automatic or set manually)
• Audible and / or alarm messages for measurements outside threshold limits
• Galvanic isolation for conductivity measurement module
• Standard (up to)four-point conductivity calibration with standards for cell factor determination and
0 μS/ cm for offset:
84 μS/cm, 1413 μS/cm, 5.0 mS/cm,12.88 mS/cm for the 0.1/cm cell
80.0 mS/cm, 111.8 mS/cm additional standards for the 1.0/cm cell
• Standard single point salinity calibration in 100 % salinity standard, with Salinity scale set to %
• Non‑volatile memory saves data and settings
Logging
• Data log collection of at least 1000000 data points (with time and date stamp)
• Logging types: manual, automatic, autohold
• Sample ID for manual and Autohold data
Connectivity features & services
• Transfer logged data to a USB thumb drive
• Log files that include measurements and calibration data (as .CSV file)
• FTP and email for log export via Ethernet and Wi‑Fi connection
• Download logs using the benchtop’s embedded web server
• USB type A for USB stick, printer, keyboard
• USB type C for USB stick and PC connection
User-support feature
• Help section – brief overview of instrument’s main functionalities and features
7 General Description & Intended Use

5. SPECIFICATIONS
5.1. INSTRUMENT
Conductivity
Range
0.000 to 9.999 μS/cm
10.00 to 99.99 μS/cm
100.0 to 999.9 μS/cm
1.000 to 9.999 mS/cm
10.00 to 99.99 mS/cm
100.0 to 1000.0 mS/cm
Resolution
0.001 μS/cm
0.01 μS/cm
0.1 μS/cm
0.001 mS/cm
0.01 mS/cm
0.1 mS/cm
Accuracy ±1 % of reading or ±0.010 μS/cm, whichever is greater
Cell constant 0.0500 to 200.0000 /cm
Calibration type Automatic
Manual
Calibration points Single
Multiple
Calibration solutions
84.00 μS/cm
1.413 mS/cm
5.000 mS/cm
12.88 mS/cm
80.00 mS/cm
111.8 mS/cm
Calibration reminder
Disabled
Daily: 0 min. to 23 hours and 59 min.
Periodic: 1 min. to 30 days, 23 hours and 59 min.
Temperature
compensation
Linear
Natural
Standard
Disabled
Reference
temperature
Range 5.0 to 30.0 °C (41.0 to 86.0 °F)
Resolution 0.1 °C / 0.1 °F
Temperature
coefficient 0.00 to 10.00 %/°C
Info taken from HI5321
unless otherwise stated
Specications 8

Resistivity
Range
1.0 to 99.9 Ω•cm
100 to 999 Ω•cm
1.00 to 9.99 KΩ•cm
10.0 to 99.9 KΩ•cm
100 to 999 KΩ•cm
1.00 to 9.99 MΩ•cm
10.0 to 100.0 MΩ•cm
Resolution
0.1 Ω•cm
1 Ω•cm
0.01 KΩ•cm
0.1 KΩ•cm
1 KΩ•cm
0.01 MΩ•cm
0.1 MΩ•cm
Accuracy ±1 % of reading or ±1 Ω•cm, whichever is greater
Total
Dissolved
Solids
(TDS)
Range
0.000 to 9.999 ppm
10.00 to 99.99 ppm
100.0 to 999.9 ppm
1.000 to 9.999 ppt
10.00 to 99.99 ppt
100.0 to 400.0 ppt
actual TDS (with 1.00 factor)
Resolution
0.001 ppm
0.01 ppm
0.1 ppm
0.001 ppt
0.01 ppt
0.1 ppt
Accuracy ±1 % of reading or ±0.01 ppm, whichever is greater
Salinity
Range
0.00 to 42.00 PSU ‑ Practical Scale
0.00 to 80.00 ppt ‑ Natural Sea Water
0.0 to 400.0 % ‑ Percent Scale
Resolution 0.01 for Practical Scale / Natural Sea Water
0.1 % for Percent Scale
Accuracy ±1 % of reading
Calibration 1 point for percent scale, using 100 % salinity calibration solution
9 Specications

Temperature
Range −20.0 to 120.0 °C / −4.0 to 248.0 °F / 253.2 to 393.2 K
Resolution 0.1 °C / 0.1 °F / 0.1 K
Accuracy ±0.2 °C / ±0.4 °F / ±0.2 K
Calibration Single point, adjustable
Reading
Modes Direct
Direct/Autohold
Stability criteria
Accurate
Medium
Fast
Sampling rate 1000 ms
Views
Basic
Conductivity, Resistivity, TDS, Salinity, Temperature measurement data
Measurement profile (if enabled)
Stability status
Simple GLP Basic view information
Last calibration date and offset
Full GLP
Conductivity & Salinity
Simple GLP information and calibration point details
Cell constant, reference and source temperature
Graph (Plot) Measurement versus time graph (panned or zoomed)
Table Measurements updated every second (displayed in table)
Logging
Type Automatic, Manual, Autohold
Number of records 50000 maximum per file
Stores at least 1000000 data points per user
Automatic interval 1, 2, 5, 10, 30 seconds
1, 2, 5, 10, 15, 30, 60, 120, 150, 180 minutes
Sample ID Incremental mode or manual
Export option .CSV file format
Users Up to 9 users and the default administrator account
Connectivity
USB‑A 2 ports for keyboard and/or printer input or USB thumb drive
USB‑C 1 port for PC connectivity, USB‑C type thumb drive and printer
Wi‑Fi & Ethernet
FTP
Web server
Email
Log transfer and download
RS232 Connecting peripherals
Power supply DC adapter 100‑240 VAC to 24 VDC 2 A
Environment 0‑50 °C / 32‑122 °F / 273‑ 323 K
Maximum 95% RH non‑condensing
Dimensions 205×160×77 mm (8.0×6.2×3.0“)
Weight Approximately 1.2 kg (26.5 lbs.)
Specications 10