edgeDO ® is guaranteed for two years against defects in workmanship and
materials when used for its intended purpose and maintained according
to instructions. Electrodes and probes are guaranteed for six months. This
warranty is limited to repair or replacement free of charge. Damage due to
accidents, misuse, tampering or lack of prescribed maintenance is not covered. If
service is required, contact your local Hanna Office. If under warranty, report the
model number, date of purchase, serial number and the nature of the problem.
If the repair is not covered by the warranty, you will be notified of the charges
incurred. If the instrument is to be returned to Hanna Instruments, first obtain a
Returned Goods Authorization number from the Technical Service department
and then send it with shipping costs prepaid. When shipping any instrument,
make sure it is properly packed for complete protection.
MANEDGEDO
01/15
Warranty
Hanna Instruments reserves the right to modify the design, construction or appearance of its
products without advance notice.
32
Warranty
®
DO
Dear
Customer
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
tech@hannainst.com or view our worldwide contact list for a Hanna
representative near you at www.hannainst.com.
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
Table of
Contents
Accessories
DO
HI 7040L
Zero Oxygen Solution, 500 mL
HI 7041S
Refilling Electrolyte Solution, 30 mL
HI 764080
Spare DO probe
HI 764080A/P
5 spare membranes
Other Accessories
HI 75110/220U
Voltage adapter from 115 VAC to 5 VDC (USA plug)
HI 75110/220E
Voltage adapter from 230 VAC to 5 VDC (European plug)
HI 76404B
Electrode holder
HI 2000WC
Wall cradle
HI 2000BC
Bench cradle
HI 920015
Micro USB cable
Included ...............................................................................................................................................3
Safety Measures ..............................................................................................................................3
Description .........................................................................................................................................4
Diagram ..........................................................................................................................................4-8
Product Diagram ..................................................................................................................................................................4-5
Probe Diagram .......................................................................................................................................................................... 6
Keypad Function .......................................................................................................................................................................7
Guide to Indicators .................................................................................................................................................................. 8
Setup/Installation ....................................................................................................................9-19
Setting Up edgeDO ®................................................................................................................................................................ 9
Electrode & Probe Connections ...................................................................................................................................... 10
General Setup ...................................................................................................................................................................11-13
Logging Function ........................................................................................................................................................... 13-15
Viewing Logged Data ................................................................................................................................................... 15-17
PC & Storage Interface.................................................................................................................................................18-19
Operational Guide .................................................................................................................20-27
Dissolved Oxygen Setup .............................................................................................................................................20-21
Dissolved Oxygen Probe Diagram .................................................................................................................................. 21
Dissolved Oxygen Meter Configuration ................................................................................................................22-23
Dissolved Oxygen Calibration................................................................................................................................... 23-24
Dissolved Oxygen Calibration Messages .....................................................................................................................25
Dissolved Oxygen GLP Information ....................................................................................................................... 25-26
Dissolved Oxygen Measurements.......................................................................................................................... 26-27
Maintenance........................................................................................................................... 28-29
Dissolved Oxygen Probe Maintenance.........................................................................................................................28
Troubleshooting Guide .......................................................................................................................................................29
Specifications ................................................................................................................................30
Accessories ......................................................................................................................................31
Warranty .......................................................................................................................................... 32
2
Accessories
31
Specifications
Dissolved
Oxygen
Specifications
DO
Range
0.00 to 45.00 ppm (mg/L)
0.0 to 300.0%
0.0 to 50.0 ºC (32.0 to 122.0 °F)**
Resolution
0.01 ppm (mg/L)
0.1%
0.1 °C
Accuracy
@ 25 °C / 77 °F
±1.5% of reading or ±1 digit
±0.5 ºC
DO Calibration
One or two points at 0% (HI 7040) and 100% (water saturated
air)
Altitude Compensation
Resolution
-500 to 4,000 m (-1640 to 13120’)
100 m (328’)
Salinity Compensation
Resolution
0 to 40 g/L
1 g/L
Temperature
Compensation
0.0 to 50.0 ºC
(32.0 to 122 ºF)
DO Probe
HI 764080
Log Feature
Up to 1000 records organized in Manual Log on Demand
(Max. 200 logs)
Manual Log on Stability (Max. 200 logs)
Interval Logging 100 lots,
Max. 600 logs/lot
Temperature Range
Remove the instrument & accessories from the packaging and verify damage
has not occurred during shipping. Remove protective film from meter. Notify
your nearest Hanna Customer Service Center if damage is observed.
Included
Each instrument is supplied with:
edgeDO ® (HI 2004)
Bench cradle
Wall cradle
Electrode holder
USB cable
5 VDC Power Adapter
Instruction Manual
Quality Certificate
HI 764080: Digital polarographic dissolved oxygen probe with integrated
temperature sensor
HI 7041S Electrolyte for DO probe
2 DO membrane caps for HI 764080 DO probe
2 replacement O-rings for membrane caps
-20.0 to 120.0 ºC ; -4.0 to 248.0 °F**
Temperature Resolution 0.1 ºC; 0.1 ºF
Temperature Accuracy
±0.5 ºC; ±0.9 ºF
Additional Specifications
PC Interface
Micro USB
Storage Interface
USB
Power Supply
5 VDC Adapter (included)
Environment
0-50 ºC (32-122 ºF) Max 95% RH non-condensing
Dimensions
202 x 140 x 12 mm (7.9 x 5.5 z 0.5”)
Weight
250 g (8.82 oz)
Note: Save all packing material until you are sure that the instrument works
correctly. Any defective item must be returned in its original packing.
Before using this product, make sure that it is entirely suitable for your specific
application and for the environment in which it is used.
Safety
Measures
Operation of this instrument may cause interference to other electronic
equipment, requiring the operator to take steps to correct interference. Any
variation introduced by the user to the supplied equipment may degrade the
instrument’s EMC performance.
To avoid damages or burns, do not put the instrument in microwave ovens.
For your and the instrument’s safety, do not use or store the instrument in
hazardous environments.
30
Specifications
3
Description
edgeDO ® enables the user to make fast, accurate measurements of dissolved
oxygen using one of the Hanna edgeDO ® digital sensors for Dissolved Oxygen.
Each digital sensors has a unique serial number that is automatically identified
by the meter. Once connected to the meter, the sensor is ready to measure
dissolved oxygen along with temperature.
The user interface permits you to adapt edgeDO ® to your exact measurement
requirements. The intuitive design simplifies configuration, calibration,
measurement, data logging and transfer of data to a USB thumb drive or
computer. (Every feature and measurement detail is designed to give you an
edge in measurement technology.)
edgeDO ® is versatile in many ways. The slim meter and probe can be used as
a portable device (using its rechargeable battery) or used in its bench or wall
cradles (that also power the meter) as a line-powered laboratory instrument.
Symptoms
Readings fluctuate up
and down (noise).
Product
Diagram
•
•
•
•
•
•
•
Sleek, clean, intuitive design
Internal clock and date
Auto parameter recognition
Dedicated GLP key
GLP data included with logged data
Simplified data transfer to a PC
Up to 8 hour battery life when used as a portable device
Troubleshooting
Guide
Solution
DO: DO probe electrolyte
contains entrapped gas.
Remove cap. Refill, tap and reinstall.
The display shows DO
reading blinking.
Out of range in DO scale.
Verify area of cathode is free of
bubbles inside cap. Verify solution
movement past membrane. Remove
cap, inspect and clean if necessary.
Install new cap, fresh electrolyte with
no bubbles, permit longer polarization.
Stir or increase flow rate.
The meter does not
measure temperature.
“----” is displayed on
second LCD line.
Broken temperature
sensor.
Replace the probe.
At startup the meter
displays all LCD tags
permanently.
Diagram
Problems
CAL “Prod” message at
startup.
One of the keys is stuck.
Instrument was not
factory calibrated or lost
factory calibration.
Check the keyboard or contact your
local Hanna Office.
Contact Hanna Technical Support for
help.
Side & Back
View
4
Diagram
Maintenance
29
Maintenance
Dissolved
Oxygen
Probe
Maintenance
Product
Diagram
The DO probe body is made of PEI.
Use the protective cap when the probe is not in use. To replace the membrane or
refill with electrolyte, proceed as follows:
For a new probe, remove the protective shipping tube by gently
twisting and pulling it off the body of the probe (see fig. 1).
If the membrane was previously installed, unscrew the membrane
cap by turning it clockwise (see fig. 2).
The new membrane cap should be rinsed with electrolyte solution.
Refill with clean electrolyte solution.
Gently tap the sides of the membrane cap to ensure that no air
bubbles remain trapped. Do not tap the bottom directly with your
finger, as this will damage the membrane.
Make sure that the rubber O-ring sits properly inside the membrane
cap. With the sensor facing down, slowly screw the membrane cap
counterclockwise. Some electrolyte will overflow.
The platinum cathode (DO Probe Diagram, page 21) should always be bright
and untarnished. If it is tarnished or stained, the cathode should be cleaned.
You can use a clean lint-free cardboard or cloth. Rub the cathode very gently
side to side 4-5 times. This will be enough to polish and remove any stains
without damaging the platinum tip. Afterwards, rinse the probe with deionized
or distilled water and install a new membrane cap using fresh electrolyte and
follow DO Probe Preparation page 28.
Important
In order to have accurate and stable measurements, it is important that the
membrane surface is in perfect condition. This semipermeable membrane
isolates the sensor elements from the environment but allows oxygen to
enter. If any dirt is observed on the membrane, rinse carefully with distilled or
deionized water. If imperfections still exist, or any damage is evident (such as
wrinkles or tears-holes), the membrane should be replaced. Make sure that the
O-Ring sits properly in the membrane cap.
28
Maintenance
1.
2.
3.
4.
Liquid Crystal Display (LCD)
Capacitive Touch Keypad
3 mm jack input for edgeDO ®
digital probes
Top mounted ON/OFF button
5.
6.
Micro USB device connection for
power or PC interface
Standard USB host connection
for data transfer to a USB
thumb-drive
Diagram
5
Probe
Diagram
Oxygen is consumed during the measurement. For accurate DO measurements,
water movement of 0.3 m/s is suggested. This is to ensure that the oxygendepleted membrane surface is constantly measuring a representative sample.
The use of a magnetic stirrer is recommended. The probe has a built-in
temperature sensor. Make sure it is also in sample. The measured temperature
is indicated on the second LCD line as shown on page 24. Allow the probe to
reach thermal equilibrium before taking any measurement. This can take several
minutes. The greater the difference between the temperature at which the
probe was stored and the temperature of the sample, the longer the time will
be.
Dissolved
Oxygen
Measurements
If the DO temperature exceeds the limits of the
probe, the message “PROBE OUT OF SPEC” will scroll
on the third LCD line and LCD will display dashes. If
the temperature exceeds the probe specification
50 ºC, then “50 ºC” will blink on the display. If interval
logging, the message “OUT OF SPEC.” will alternate
with the Log specific messages in both of these cases.
The Log file will indicate “ºC!” next to the data. In the
case the temperature sensor is damaged, “BROKEN
TEMPERATURE SENSOR” will be displayed and the
temperature will display “----” along with the unit
tag blinking on the second LCD line. The Log file will
indicate “ºC!!” next to the data.
Probes
DO Electrode
•
•
•
•
•
•
•
6
Diagram
Probes process signal directly for noise free measurements
Auto sensor recognition
Store calibration specific data from the last calibration
Are built with materials suitable for use in chemical analysis
Have integrated temperature measurement
Incorporate a 3 mm jack termination
Unique serial ID in every probe for traceability
Operational Guide
27
The date of the calibration together with the
current reading.
Dissolved
Oxygen
GLP
Information
Keypad
Function
Calibration Expiration status together with the
current reading: If disabled, “EXPIRATION WARNING
DISABLED” is displayed.
If enabled, the number of days until the calibration
alarm “CAL DUE” will be displayed. (i.e. “CAL EXPIRES
IN 2 DAYS”)
If enabled, the number of days the calibration has
expired (i.e. “CAL EXPIRED 2 DAYS AGO”).
The probe serial number together with the current
reading.
Dissolved
Oxygen
Measurements
Make sure that the probe is polarized, calibrated and the protective cap has been
removed.
Rinse probe.
Submerse the probe in the sample to be tested, make sure temperature probe is
also immersed. Allow reading to stabilize.
Note: The sample should be stirred when taking a reading.
The Dissolved Oxygen value (in %) is displayed
on the first LCD line and the temperature on the
secondary LCD line.
Press RANGE to change the reading from % to ppm
(mg/L) and vice versa.
26
Operational Guide
1. CAL/MODIFY - Used to enter
and exit calibration mode. In
SETUP, used to initiate changes of a
configuration setting.
5.
/
- Used to scroll through
SETUP menu. Used to change
selection
when
modifying
a
parameter in SETUP.
2. GLP/CFM - Used to display GLP
calibration information. In SETUP,
used to confirm change made. In
calibration, used to accept calibration
points.
6. RCL (Recall) - Used to view
logged records or view % log memory
used.
3. RANGE/u - Used to select
measurement range. In SETUP, used
to move to right in pick list. In log RCL,
used to view GLP data for a data point.
4. SETUP/CLR - Used to enter/exit
SETUP mode. During calibration, used
to clear previous calibration data. In
log RCL, used to clear log records.
7. LOG - Used to log data by
manual log on demand or manual log
on stability or to start/stop interval
logging.
Note: You can increase/
decrease the speed to
change the value of a
parameter.
Proceed as follows:
Press and hold down the
p or q key, then slide the
finger toward the double
apex to increase the speed
that a value changes.
Diagram
7
Guide to
Indicators
Dissolved
Oxygen
Calibration
Messages
If the reading is outside limits, “WRONG STANDARD“
message will be displayed.
If the temperature is out of range (0.0 - 50.0 ºC) during
calibration, then the message “WRONG STANDARD
TEMPERATURE” will be displayed and temperature
value will blink.
GLP refers to a quality control function used to ensure uniformity of probe
calibrations and measurements. The dedicated GLP key opens a file of the latest
calibration information. Use the qp keys to scroll the stored information. This
includes the standards used, temperature of the standard, Altitude and Salinity
factors, time and date of the last calibration, the expired calibration information
and the probe serial number. This information is also included with all logged
data.
1.
2.
3.
4.
5.
6.
7.
8.
Mode tags
Confirm tag
USB connection status
Probes symbol
Battery symbol
Arrow tags, displayed when they
are available
Third LCD line, message area
Labels
9.
10.
11.
12.
13.
14.
Second LCD line, temperature
measurement
Temperature units
Temp. Compensation status
Measurement line
Measurement units
Stability Indicator
The third line of the LCD (9) is a dedicated message line. During measurement
the user may use the pq arrows to select desired message. Options include
date, time, calibration data, battery charge or no message. If a measurement
error or log status change occurs during measurement, the third line will display
a pertinent message.
Dissolved
Oxygen
GLP
Information
Last DO Calibration Data
The last DO calibration data is stored automatically
after a successful calibration. To view the DO
calibration data, press GLP when the instrument is in
measurement mode.
The instrument will display:
The calibration standard
temperature:
and
the
calibration
0.0 % will be displayed if the instrument was
calibrated at this point.
100 % calibration point, if instrument was calibrated
in water-saturated air.
The altitude and salinity setting at the moment of
calibration together with the current reading.
The time of day that the calibration was performed
together with the current reading.
8
Diagram
Operational Guide
25
Dissolved
Oxygen
Calibration
100% Saturated Calibration
It is suggested to perform the slope calibration in water-saturated air.
Pour water into a small beaker.
Rinse the polarized probe with clean water.
Dry the probe tip and allow a few seconds for the LCD reading to stabilize (probe
in air).
Suspend probe with membrane just over the beaker of water.
Press CAL.
The “ ” tag will be displayed along with “WAIT” blinking
on the LCD until the reading is stable.
The main operating modes of edgeDO ® are setup, calibration, measurement,
data logging, and data export. Follow this general outline of steps to get you
started. The following topics are expanded upon in the sections that follow in
this manual.
1.
2.
3.
4.
5.
6.
Setup/
Installation
Setting Up
edgeDO ®
Familiarize yourself with the design features of this unique meter.
Decide how the meter will be used and set up the wall or bench cradle in a
clean area near line power.
Turn edgeDO ® on using the ON/OFF button located on the top of the meter.
Plug in the probe required for measurement.
SETUP the measurement parameters required for the measurement you
will be making.
Calibrate the sensor/probe.
You are now ready for measurements.
When the reading is stable and is within the limits,
“CFM” tag starts blinking. Press CFM to confirm the
100.0 % DO calibration.
Press CAL to leave calibration after the first point. The instrument will display
“SAVING” message and it will return to measurement mode memorizing the
slope calibration data
Zero Calibration
Press CAL or continue with calibration after confirming
first point. The meter will display “WAIT” and “0.0 %”
will be displayed in lower right corner.
Submerse the probe membrane and temperature
sensor into the beaker containing HI 7040 Zero
Oxygen solution and stir gently for 2-3 minutes, the
reading will go down.
When the reading is stable and stops decreasing,
“CFM” tag starts blinking. Press CFM to confirm the 0.0
% DO calibration.
The instrument will display “SAVING” message and it
will return to measurement mode. Rinse probe tip off
in water before taking measurements in samples.
24
Operational Guide
Bench Cradle Setup
Insert electrode holder arm into the post
on the pivoting base.
Connect the probe connector to the
socket located at the bottom of the
instrument.
Slide edgeDO ® into the cradle while
positioning the probe cable behind the
cradle. Put the probe/sensor into the
electrode holder and secure cable in
clips.
Connect the power adapter cable to the
rear socket of the bench cradle. Connect
the other end to the power adapter and
plug into line power. Verify the battery
icon indicates charging.
Wall Cradle Setup
Choose suitable wall location. (Use 2.5
mm or US #3 bit). Fasten the wall cradle
using the provided screws. Snap cover
over screw heads.
Setup/Installation
9
Setting Up
edgeDO ®
Connect the power adapter cable to the
bottom socket of the wall cradle. Connect
the other end to the power adapter and
plug into line power.
Connect the 3 mm probe jack to the socket
located at the bottom of edgeDO ®.
Slide edgeDO ® into the wall cradle. Verify
the battery icon indicates charging.
Salinity and Altitude Compensation
Temperature, altitude and salinity compensation are used for DO concentration
measurements (ppm or mg/L). When the water is colder, it can hold more
dissolved oxygen, when it is warmer it holds less oxygen. Compensation
for temperature-related solubility is done automatically using the built-in
temperature sensor within the DO probe and algorithms in edgeDO ®. When
water is measured at an altitude below sea level, oxygen solubility increases, but
above sea level the oxygen solubility decreases. To compensate for this during
calibration and measurement, the user must provide the approximate altitude
(in meters) in the SETUP menu. The settings are in 100 m increments; select
the value closest to the actual altitude. Some examples of altitudes around the
world follow:
Location
Power Connection
Alternatively to using the cradle for
power, edgeDO ® can be powered by micro
USB socket at the top. Plug the 5 VDC
adapter into the power supply socket or by
connecting directly to a PC.
Note: edgeDO ® is supplied with a
rechargeable battery inside, which
provides about 8 hours of continuous use.
Whenever edgeDO ® is connected to the
power adapter or to a PC, the battery is
charging
Meter
Feet
Sebkha paki Tah, Morocco
-55
-180
Lake Frome, Australia
-6
-20
-1 to -7
-3 to -23
Netherlands, coastal providence
Lake Michigan, USA
176
577
Lake Geneva; France, Switzerland
372
1220
Denver, CO USA
1609
5279
Mount Everest
8848
29029
Dissolved
Oxygen
Meter
Configuration
The solubility of oxygen in water is also influenced by the amount of salt the
water contains. Seawater typically has a salinity of 35 g/L and the oxygen
solubility is 18 % less compared to fresh water at 25 °C. By entering the
approximate salinity value, the calibration and subsequent concentration
measurement will be compensated to display the correct oxygen concentration.
A 18 % error would result if the salinity value is not entered.
Note: Salinity and Altitude have no effect on % oxygen solubility range.
When water is fresh, containing no sea water, the concentration of oxygen will
be at a maximum. The solubility of the oxygen dissolved in water is decreased
when water is brackish or seawater. The solubility of oxygen in water is
decreased when measurements are made at elevations above sea level.
Electrode
& Probe
Connections
10
Setup/Installation
Connect the 3 mm probe jack to the probe
input located on the bottom of edgeDO ®.
Make sure the probe is completely
connected. If the probe is recognized,
“CONNECTING” message is displayed along
with sensor model.
Before proceeding with the calibration, make sure the probe is ready for
measurements (see page 46), i.e. the membrane cap is filled with electrolyte,
the probe is connected to the meter and properly polarized. For an accurate
calibration, it is recommended to wait at least 15 minutes to ensure conditioning
of the probe. Keep the protective cap on during polarization time and remove
it for calibration and measurements. Follow the calibration procedure. Calibrate
the probe frequently, especially if high accuracy is required. The probe can be
calibrated at 2 points: 100.0 % (slope calibration) and 0.0 % (zero calibration).
If the probe is not connected or not
recognized, “NO PROBE” message is
displayed.
Initial Preparation
Prepare a fresh bottle of HI 7040 by following package directions. Use solution
within one month of preparation. Pour small quantities of HI 7040 Zero Oxygen
solution into a beaker. If used, remove the protective cap from the DO probe.
Dissolved
Oxygen
Calibration
Operational Guide
23
Dissolved
Oxygen
Meter
Configuration
DO (Dissolved Oxygen) meter operation is configured using the SETUP key with
a DO probe connected to the meter. The parameter-specific options will be seen
inserted into the menu.
Parameter
Choices
Default
Concentration
measurements of
dissolved oxygen
change depending
on atmospheric
pressure. A
convenient way
to estimate
atmospheric
pressure effects
is by the related
parameter of
elevation (m) above
or below sea level.
Enter altitude in
meters closest to
the actual altitude
to ensure the most
accurate calibration
and concentration
measurement.
-500, -400, -300,
-200, -100, 0, 100,
200, 300, 400, 500,
600, 700, 800, 900,
1000, 1100, 1200,
1300, 1400, 1500,
1600, 1700, 1800,
1900, 2000, 2100,
2200, 2300, 2400,
2500, 2600, 2700,
2800, 2900, 3000,
3100, 3200, 3300,
3400, 3500, 3600,
3700, 3800, 3900,
4000 m
0
Salinity (g/L)
Dissolved oxygen
solubility decreases
if water contains
salts. Selecting this
factor as to be close
to your known salt
level, will improve
the accuracy of
DO concentration
calibration and
measurement.
0, 1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14,
15, 16, 17 18, 19, 20,
21, 22, 23, 24, 25, 26,
27, 28, 29, 30, 31, 32,
33, 34, 35, 36, 37,38,
39, 40 g/L
Select preferred
measurement units
for DO concentration.
mg/L or ppm
DO Units
Altitude (m)
22
Operational Guide
Description
The following General Setup options are displayed regardless of the sensor
being used. These settings remain when switching to another probe type or
when no probe is attached. Options are tabulated in the table below with choices
and default values. Options are accessed by pressing SETUP. Loop through the
options by using the pq arrows. To modify a setting, press MODIFY. The option
may be modified by using u, p and q keys. Press CFM to confirm the change. To
exit SETUP press SETUP.
Option
*Only seen
when cable
connection
between micro
USB and PC is
made.
Description
Choices
Select if PC is
being used for
charging battery
(and meter
will be used
for logging) or
if Data will be
exported to
the PC.
LOG ON EDGE or
EXPORT TO PC
General
Setup
Default
LOG ON EDGE
Select log type
to be used
from 3 types of
logging:
0
Log
ppm
Manual log on
demand
Manual Log
Manual log
on stability
(3 types of
stability criteria
available)
Stability Log:
Fast, Medium,
Accurate;
Timed interval
lot logging
Interval Log:
Seconds: 5, 10,
30; Interval Log
Minutes: 1, 2, 5,
15, 30, 60, 120,
180.
Interval
(5 Sec)
Set Calibration
Expiration
Warning
Meter will
indicate “CAL
DUE” when
set time in this
parameter has
been exceeded.
Probe Specific
Parameters that are specific to a measurement type are
inserted here in the SETUP list.
Set Date
Press MODIFY
key to Set current
date, displayed
in ISO format.
Press CFM to save
changes.
YYYY/MM/DD
Date
Set date
Set Time
Press MODIFY
key to Set current
time, displayed
in ISO format.
Press CFM to save
changes.
24hr:MM:SS
Time
Set time
1, 2, 3, 4, 5, 6, 7
days or OFF
7 days
Setup/Installation
11
General
Setup
Option
Description
Choices
Default
Set Auto Off
Used to save
battery life by
automatically
turning off when
no key press is
detected for
time set and
meter is not in
active logging or
calibration mode.
Sound
If enabled, a
short audible
tone is produced
for key stroke
or calibration
confirmation and
a longer tone for
wrong key.
On or Off
On
Temperature
Unit
Select degree
Celsius or
Fahrenheit scale
for displayed
and logged
temperatures.
ºC or ºF
ºC
LCD Contrast
Permits
modification
of the display
contrast for
various lighting
conditions.
1 to 8
3
Flash Format*
Only seen when
log errors are
present.
Permits
formatting the
flash drive.
On or Off
OFF
Message
Transition
User may choose
how messages
are displayed on
third LCD line of
display.
Word scroll
messages or
letter scroll
messages
Letter scroll
messages
Reset Config To
Default
Press the MODIFY key and CFM (when prompted) to
reset parameters.
Instrument
Firmware/ Probe
Firmware
Displays firmware
version of meter.
Using the u
key switches to
Probe firmware
(if connected)
and diagnostic
made for
troubleshooting.
View only
Current
firmware
version.
Meter ID/
Meter SN/
Probe SN
User ID and
Serial Number of
meter and probe
(if connected).
Use u to
change between
the three
parameters.
Meter ID is user
selectable
0000/ Serial
Number
5, 10, 30, 60
Min
or Off
10 MIN
The probe is polarized with a fixed voltage of approximately 800 mV between
the cathode and anode. Probe polarization is essential for stable measurements.
With the probe properly polarized, oxygen is continually consumed as it passes
through gas permeable PTFE membrane.
Dissolved
Oxygen
Setup
If polarization is interrupted, the electrolyte solution continues to be
enriched with oxygen until it reaches an equilibrium with the surrounding
solution. Whenever measurements are taken with a non-polarized probe, the
measurement will be drifty and inaccurate. The measurement will jump when
the probe is moved.
Note: When not in use and during polarization, use the protective transparent
cap.
Dissolved
Oxygen
Probe
Diagram
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Strain Relief
Probe Cap
PEI Probe Body
Temperature Sensor
Threads for Membrane Cap
Ag/AgCl Anode and Reference
Glass Insulator
Platinum Cathode
O-Ring
Disposable Membrane Cap
Oxygen Permeable PTFE Membrane
Shipping Tube
*Note: Options that are seen under special conditions only.
12
Setup/Installation
Operational Guide
21
Operational
Guide
Dissolved
Oxygen
Setup
Steps To Optimize
1.
Determine if Concentration or % Saturated measurements will be made.
2. Prepare the Dissolved Oxygen (DO) probe for measurement.
3. Connect the probe to the meter and configure the SETUP parameters.
4. Calibrate the DO sensor.
5. Take measurements using the DO sensor.
Measurements Available
Concentration measurements in water, and % oxygen-saturated measurements
are available using edgeDO ® together with HI 764080 DO probe. Algorithms
used for concentration measurements (units of ppm or mg/L) are based upon
the oxygen solubility in air-saturated fresh water. Compensation for salinity
and altitude are made by configuring SETUP options. Percent saturation
measurements are based upon the partial pressure of oxygen and are suitable
for measurement in samples other than air-saturated fresh water. It is advised
to check material compatibility of the probe with the sample.
DO Probe Preparation
CAUTION: Use care during servicing and use. The HI 764080 contains a glass
insulator. Do not drop or handle carelessly.
Probes from Hanna Instruments are shipped dry.
1. Carefully remove the cardboard shipping tube used to
protect the probe during shipping. Save the tube, should the
probe be stored dry again.
2. Open membrane package and remove one O-ring and one
membrane cap.
3. Rinse the membrane cap with a small amount of HI 7041
electrolyte and discard.
4. Position o-ring in cap as indicated. Refill membrane cap 3/4
full with electrolyte solution, ensure to cover the o-ring.
5. Holding the membrane cap by the top, tap the side walls
of the membrane cap to dislodge gas bubbles and force them
to rise to the surface. Do not tap on the membrane directly
as it may damage it.
6. With the probe facing down, slowly screw the cap
counterclockwise until completely tightened. Electrolyte will
overflow.
7. Rinse outer body of the probe and inspect membrane for
entrapped gas bubbles. The cathode area should be free of
bubbles.
8. Connect the DO probe to edgeDO ® meter and turn meter
on.
9. Allow probe conditioning (polarizing) function to occur.
Note:
•
If powering edgeDO ® through the micro USB connector to a PC, a SETUP
option will require the choice “LOG ON EDGE” or “EXPORT TO PC“.
•
1000 log records can be stored into edgeDO ® memory. This memory is
shared between and all logging types (Manual, Manual Stability, Interval
logs).
•
The maximum number of records for an Interval lot is 600 records (provided
log space is available).
•
A record is a stored reading and a lot is a group of records.
Logging
Function
Types of Logging
Interval logging: A continuous log recorded using a user-selected timed period.
(This is not available in Basic mode).
Manual log on demand: Readings are logged each time LOG key is pressed. All
of the records are stored in a single Manual lot for the measurement type. New
records made on different days are stored in the same Manual lot.
Manual Stability log on demand: A log on demand that is made each time LOG
key is pressed and the stability criteria is reached. Stability criteria may be set to
Fast, Medium or Accurate settings.
In Setup mode, choose log parameter, press MODIFY then use the u arrow to
select between Interval, Manual, or Stability. When Interval is displayed, use the
p and q arrows to select the setting for the timed interval. When Stability is
displayed, use the p and q to select the measurement stability setting.
A complete set of GLP information including date, time, range selection,
temperature reading, calibration information and probe serial number is stored
with each log made.
Interval Logging
Select Interval and sampling period in the SETUP menu. To start Interval logging,
press the LOG key while the instrument is in measurement mode.
During this process, the following message will be
displayed on the LCD, “DISSOLVED OXYGEN PROBE
CONDITIONING”.
The conditioning message will be displayed for about
60 seconds while the DO probe is conditioned. If the
probe was conditioned and a new conditioning is not
necessary, press any key to enter measurement mode.
20
Operational Guide
Setup/Installation
13
Logging
Function
A “PLEASE WAIT” message will be displayed followed
by the number of free spaces. During active interval
logging, lot information is displayed on the third
LCD line. The line indicates in which lot the data will
be placed and keeps track of the number of logged
records taken. The “LOG“ tag is continuously on during
active logging.
Pressing u during an interval log will display the
number of logs available.
Logged data on the edgeDO ® can be transferred from the meter to a PC by
following these simple directions. Suitable operating systems include Windows
(Xp minimum), OS X or Linux.
1.
2.
3.
4.
5.
6.
PC & Storage
Interface
Connect edgeDO ® to the PC using the supplied micro USB cable.
Turn on edgeDO ®.
Press SETUP and select “LOG ON EDGE”.
Press MODIFY then use pq keys to change to “EXPORT TO USB”.
Press CFM and the USB/PC Tag is displayed.
Press SETUP to exit.
The PC should detect the USB as a removable drive. Open the drive to view the
stored files. Log files are formatted as Comma separated values (*.CSV) and can
be opened with any text editor or spreadsheet program.
Note:
•
Western Europe (ISO-88859-1) character set and English language are
suggested settings.
Pressing the LOG key again will stop the Interval
logging session. The “LOG STOPPED“ message will be
displayed for a few seconds.
If a sensor failure occurs during interval logging, the
message “OUT OF SPEC.” will alternate with logging
information.
•
Other files may be visible depending upon computer settings. All files
stored will appear in this folder.
•
Adjust Font or column width appropriately.
Interval logs are designated as DO Lots. ie. DOLOT001, DOLOT002, DOLOT003.
Manual Logging
Select Manual in the SETUP menu. To initiate a
Manual log, press the LOG key while the instrument
is in measurement. The “PLEASE WAIT” screen will
be displayed briefly followed by a screen indicating
the measurement has been saved and then a screen
indicating the log record number.
The Manual Lots are DOLOTMAN.
The Stability Lots are DOLOTSTAB. All stability logs, regardless of stability
setting, are located in the same stability file for that measurement.
Click on the desired log to view data.
The “LOG” tag will be displayed on all 3 screens.
“PLEASE WAIT”
“SAVED” with the log record number
“FREE” with the number of free spaces available
Note:
•
If “ºC !” appeared in log data, the electrode/probe was used beyond it’s
operation specifications and the data is not considered reliable.
•
14
Setup/Installation
If “ºC !!” appeared in log data, the temperature sensor within the probe or
electrode is broken and the device should be replaced. Logged data should
not be considered reliable.
Setup/Installation
19
PC & Storage
Interface
Logged data on edgeDO ® can be transferred from the meter to a USB flash drive
by using the log recall function. The minimum requirement for the drive is USB
2.0. Select the DO record you wish to export and follow the simple steps below.
Connect USB flash drive to the USB port, located on
the top of the meter. Press the RCL key. Select Manual,
Stability, or interval lots by using the pq keys. Press
the LOG key (not CFM). The “USB HOST” tag should
come on.
“PLEASE WAIT” message appears followed by
“EXPORT”. Press CFM to export the selected record or
lot. If CFM is not pressed in 10 seconds, the USB host
will become inactive.
Stability Logging
Select Stability and choose measurement stability
criteria in the SETUP menu. To initiate the Stability
log, press the LOG key while the instrument is in
measurement.
Logging
Function
The “PLEASE WAIT” screen will be displayed briefly
followed by a screen showing the stability tag, “LOG”
tag and a “WAITING” message. The log can be stopped
while the “WAITING” message is displayed by pressing
LOG again.
The meter will display the percentage of export.
When the stability selected criteria has been met,
a “SAVED” message will be displayed followed by a
screen indicating how much log space is available. The
“LOG” tag will be displayed on all 4 screens.
The export percentage should go to 100%. Remove
USB flash drive.
If the selected file is already saved on the flash drive,
edgeDO ® will ask for confirmation of overwriting the
existing file. The message “OVERWRITE’ and “CFM”
tag will blink. Press CFM for overwriting the existing
file or CAL to exit without exporting.
After exporting the display will return to the
selected file. Press the RCL key twice to return to
measurements.
“PLEASE WAIT”
“WAITING”
“SAVED” with the log record number
“FREE” with the number of free spaces available
All log records stored on edgeDO ® may be viewed on
the meter by pressing the RCL key.
Viewing
Logged
Data
Use the pq keys to chose the type of logging records
to view. Choices are:
•
Manual log on demand lot,
•
Manual log on stability lot,
•
Individual Interval logging lots.
Note: Do not remove USB flash drive during an active export transfer.
18
Setup/Installation
Setup/Installation
15
If no data was logged for the selected measurement
range, the instrument displays the following
messages:
•
“NO MANUAL LOGS”
•
“NO STABILITY LOGS”
Viewing
Logged
Data
Press CFM to enter inside lot information to view recorded data.
Use the ARROW keys to toggle between different records.
Use u to display GLP data including calibration information, date, time, etc.
Press CLR then CFM when deleting records or lots.
Press RCL to exit the logging type.
Press RCL to return to the measurement screen.
Select the Manual (Stability) lot and press CLR.
The ”CLEAR” message will be displayed along with
”MANUAL” or “STABILITY” and CFM tag blinking on
the LCD. Press the CFM key to confirm the deleting of
the selected lot (MANUAL or STABILITY) or all records.
Press CLR to exit without deleting.
Delete Logging Type/Lot
Press RCL followed by CFM.
Use the pq keys to select the Manual/Stability records or Interval lots to delete.
Press CLR. The instrument will display “CLEAR MANUAL” for Manual Records,
“CLEAR STAB” for Stability Records.
The lot number is used to identify particular sets of data. The lot numbers
are allocated successively until 100, even if some lots were deleted. The total
number of lots that can be saved is 100. If some are deleted (for example 1-50),
fifty additional logs may be stored. These will be numbered 101-150. The lots are
allocated successively (provided available memory space) until 999 is reached.
After this, it is necessary to delete all the LOT logs to start over the numbering.
For Interval lots, the message “CLEAR”, followed by the
selected lot will be displayed with “CFM” tag blinking.
Delete All
All logs, may be deleted in a single clear. This function will delete all MANUAL,
STABILITY and INTERVAL logs.
Press the pq keys to select a different lot. Press CFM.
The instrument will display “PLEASE WAIT”.
Press the RCL key. The DO type will be blinking. Use
u to select desired measurement parameter log data
to delete.
“CLEAR DONE” is displayed for a few seconds after the
selected Interval lot is deleted.
Delete Records (Manual and Stability log on demand)
To delete individual records (Manual and Stability logs only), enter Manual
(Stability) log by pressing CFM when Manual (Stability) is displayed. Use the
ARROW keys to select the record to be deleted and then press CLR.
The instrument will display “CLEAR REC.“ and record
number along with “CFM” tag blinking. Use the ARROW
keys to select another record if necessary.
16
Press CFM. The instrument will display “PLEASE WAIT” and then “CLEAR
DONE” message. When individual logs are deleted within saved MANUAL or
STABILITY logs, the logs will renumber, filling in the deleted data but staying in
chronological order.
To delete all records of the MANUAL (STABILITY) log, proceed as described on
page 16 for LOTS.
Setup/Installation
Viewing
Logged
Data
While the measurement type is blinking and message
states “LOG RECALL”, press CLR.
“CLEAR ALL” and measurement type will be displayed
with “CFM” tag blinking. Press CFM.
“PLEASE WAIT” and the percent cleared will be
displayed until completed. The procedure can be
repeated for the other measurement modes.
Note: If CLR is pressed in error, press CLR again to exit
without deleting.
Setup/Installation
17