operation manual - AZ Instrument Corp.

OPERATION MANUAL
COMBO
PH/CONDUCTIVITY/
TDS/SALINITY/D.O.
METER
Model:
84051
INDEX
INTRODUCTION
MATERIAL SUPPLIED
POWER SUPPLY
KEY PAD OPERATION
LCD DISPLAY
OPERATION
PH MEASUREMENT
CONDUCTIVITY MEASUREMENT
SALINITY MEASUREMENT
TDS MEASUREMENT
DISSOLVED OXYGEN MEASUREMENT
MEMORY RECORD
RECALL MODE
BACKLIGHT
SET UP
P10 Memory Clear- Clr adjustable
P20 PH Electrode Slope Review
P30 Cond. Calibration Review
P40 Cond. Cell Constant Review
P50 Cond. TDS factor adjustable
Page
1
1
2
2
3
5
6
7
7
7
8
9
9
10
10
11
12
13
14
14
P60 DO Review and Set parameters adjustable 15
17
P70 Temperature unit adjustable
18
CALIBRATION PH probe
20
CONDUCTIVITY CALIBRATION
COND probe maintenance
23
24
24
24
DO probe maintenance
TROUBLE SHOOTING
SPECIFICATION
25
28
31
WARRANTY
RETURN AUTHORIZATION
31
DO % SATURATION CALIBRATION
PROBE MAINTENANCE
PH probe maintenance
31
INTRODUCTION
Thank you for purchasing Multi-function
waterproof pH/Cond./TDS/Salt/D.O.
Meter. Please read this manual
thoroughly before operation.
Features:
● Large LCD with multiple parameters
display: PH, Conductivity, TDS,
Salinity, D.O. and temperature.
(Displayed parameter is decided by
probe type)
● Green backlight for dark environment.
● Auto temperature compensation.
● Multiple points calibration.
● Manually altitude compensation and
salinity compensation function
for D.O. measurement.
● 99 points memories w/recall function.
● Probes w/ anti collision hood.
o
o
● Temperature C/ F is switchable.
● 1 hour auto power off.
● Application:
-Excellent to use in fresh water aqua farm.
-Excellent to use in sea water aqua farm.
MATERIAL SUPPLIED
A basic package contains:
-Meter x1pc
-AAA Battery x 4pcs
-Operation manual x 1pc
-Hard carry case x 1pc
-Probe (probe type & Qty is depended
on your ordering p/n)
Probes for this series:
-pH probe
-Conductivity/TDS/Salt probe
-D.O. Probe (w/maintenance accessory)
1
POWER SUPPLY
The meter is powered by 4pcs AAA
batteries. If any of the following
situations occurred, please check the
battery power, polarity and contact:
1. Brand new meter and first time using.
2. When the battery low icon appears on
the LCD.
3. When you can not turn the power on.
KEY PAD OPERATION
-Press this key to switch the
meter ON/OFF.
-In the normal mode, press >1 sec to
enter SET mode.
-Press to switch between
“normal”and“calibration”.
-In calibration, setting or recall mode,
press to return to normal mode.
-Press to switch between
CON(us) or TDS(ppm/ppt) or
Salt (ppt) unit.
-Hold down this key more than 2
seconds to read memory value.
/SALT
-Press to switch between
D.O.in% or D.O.in mg/l(ppm).
-Press to increase the setting value in
SET mode.
-Press to save the current
reading.
-Press to decrease the setting value
in SET mode.
2
-Press to confirm the
calibration or parameter
setting.
-Press to turn on/off backlight.
LCDDISPLAY
DISPLAY
LCD
Full display
PH CON TDS SALT DO ATC CAL TEMP
O
O
CF
MEMO
mV uS mS ppt ppm
% mg/l M HOLD MAX MIN
Using PH probe
PH
ATC
TEMP
O
C
MEMO
1.The pH value will be displayed on the
left side of the LCD
2.The temperature value will be displayed
in the upper right corner of the LCD.
3.The MEMO number will be displayed in
the lower right corner of the LCD and is
the total number of saved records.
3
Using Conductivity/TDS/Salinity probe
ATC
CON
O
C
TEMP
MEMO
uS
4.The conductivity value will be displayed
on the left side of the LCD.
5.The temperature value will be
displayed in the upper right corner
of the LCD.
6.The MEMO number will be displayed in
the lower right corner of the LCD and is
the total number of saved records.
7. Press “EC mode”key to switch the
display to TDS or salinity reading.
TDS
ATC
TEMP
O
C
SALT
MEMO
ppt
ATC
TEMP
O
C
MEMO
ppt
HOLD
HOLD
Using D.O. probe
DD
ATC
TEMP
O
C
O
MEMO
mg/l
8.The DO value will be displayed on the
left side of the LCD.
9.The temperature value will be
displayed in the upper right corner of
the LCD.
10..The MEMO number will be displayed in
the lower right corner of the LCD and is
the total number of saved records.
4
OPERATION
Note: Please turn the power off before
replace the probe. Turn the power on
after the probe is plugged and screw
tightly.
START UP
1.Install the batteries into the meter.
2.Read the section of calibration and
Setup and take necessary action first.
3.Three probes which can be connected
to the meter: PH probe with black
connector, COND./TDS/Salinity probe
with blue connector, D.O. probe with
green connector.
The charts below indicates the electrode
and temperature sensor location.
Temp. PH
Temp. Cond
Anti-collision hood
Temp. D.O.
All probes are provided with a anticollision hood to provide protection in
measuring. Please remove protection
hood in below condition:
1. To store pH probe.
2. To do pH calibration.
There is installation guide between
probe plug and meter socket. Find the
guide, screw probe tight moderately.
5
Top view
Probe connect socket
PH MEASUREMENT
This meter is designed with automatic
temperature compensation feature.
Please remove the pH electrode soaker
bottle on the electrode before use.
Step 1
Rinse the probe with de-ionized or
distilled water before use in order to
remove any impurities adhering on
the probe. If the electrode is dehydrated,
soak it for 30 minutes in KCl solution
before taking the reading. Then, put on
anti-collision hood for better protection.
Step 2
Press power on key.
Step3
Dip the electrode into the sample, the
electrode must be completely immersed
into the sample. Stir the probe gently to
create a homogenous sample and
shorten the stabilizing time. Be careful
, don’ t create air bubble.
Step4
Wait until the reading is stabilized.
6
CONDUCTIVITY MEASUREMENT
Please put on anti-collision hood to
provide better protection. There is no
need to remove hood even when you
plan to do calibration.
Step 1
Rinse the probe with de - ionized or
distilled water to remove impurities
adhering on the electrode. If the meter
is not used for a long time, please soak
the probe in clear water for more than
30 minutes to eliminate the inert effect
of the probe.
Step 2
Press power
key and dip the
probe into
Wrong
sample. Making
sure the electrode tips is totally
immersed . Stir the probe gently to
create a homogenous sample.
Be careful, don’t create air bubble.
Step 3
Wait until the reading is stabilized.
SALINITY MEASUREMENT
Under normal mode, please connect
the Cond. probe to the meter. Press
“EC mode” key to switch to SALT display.
Please follow the above conductivity
measurement step 1~4 to take the
salinity measurement.
TDS MEASUREMENT
Under normal mode, please connect
the Cond. probe to the meter. Press
“EC mode” key to switch to TDS display.
Please follow the above conductivity
measurement step 1~4 to take the TDS
measurement.
7
DISSOLVED OXYGEN MEASUREMENT
Put on anti-collision hood to provide
better protection. There is no need to
remove hood even during calibration.
Step 1
Press the power on key. The D.O.will be
displayed on LCD with mg/l unit.
It might take from seconds to nearly 10
minutes to have a stable D.O. reading.
It is depended on what kind of D.O.
Activation mode you choose.
Two D.O. Activation modes are provided:
Slow and Fast. Meter is default at Fast
but it is programmable in setting mode
P6.4 (page 15)
- If D.O. probe is unplugged from meter
and not in use for long time, it might take
about 10 mins to activate.
- If D.O. probe is plugged on meter for
most of time, to set the activation mode
to Fast can make the reading stabilized
in few seconds. The dis-advantage of
Fast mode is electrolyte consumption is
much higher so the need to refill and
doing probe maintenance is frequent.
-If D.O. probe is plugged on meter for
most of time, to set the activation mode
to Slow can make the reading stabilized
in 10 mins. The advantage of Slow mode
is electrolyte consumption is lower and
less maintenance work to do.
Step2
Run 100% calibration in air.
Step 3
Dip the probe into the sample. Making
sure the electrode tips is totally
immersed when you stir it.
Step 4
Wait until the reading is stabilized.
8
You can press “% mg/L” key to switch
measurement unit to % .
If your application is to measure dissolved
oxygen in aqua farm, it is suggested to
measure at least 1 meter deep and do
it regularly at fixed time, fixed location
and fixed water deep to get proper data
for comparison.
MEMORY RECORD
In the normal mode, press MEM key
can memorize up to 99 points records.
The MEMO number will be displayed
on the screen. “FUL” on the screen
when the 99 points memories are full.
NOTE: DO value in % unit can’t be
memorized , Please switch to mg/l
(ppm) mode before proceed memory
recording.
RECALL MODE
To enter RECALL ( REC) mode, press
and hold RECALL key for more than
one second in the measurement mode,
then press△ or ▽ to view memorized
data in rounds (Fig 18 ). Press ESC
key for more than one second to return
to normal mode. While in RECALL mode
, “MEMO” icon appears on display.
DO ATC
TEMP
O
C
MEMO
mg/l
Fig 18
9
BACKLIGHT
In normal mode, press “ENTER” key
to switch on the backlight. To turn if off,
press “ENTER” key again.
SETUP
This meter has the advanced setup
mode which allows you to customize
and check your meter's preferences
and defaults.If you would like to
change the parameters, please press
“SET” for more than 2 sec. to enter
the setup mode when the meter is in
the measurement mode.
NOTE:
To exit the function without saving in
the setup mode, press the CAL/ESC
key until the measurement mode
appears. If the meter is under the setting
value status, press the CAL/ESC key
twice to exit.
The table below shows the programable
functions of each probe .
Parameters
PH
P10 Memory Clear-CLr adjustable
V
P20 PH Electrode Slope Review
V
COND DO
V
P30 Cond. Calibration Review
V
P40 Cond. Cell Constant Review
V
P50 Tds factor adjustment
V
P60 DO Review and Set parameters adjustable
P70 Temperature unit setting adjustable
10
V
V
V
V
V
P10 Memory Clear-CLr (adjustable)
P10 is used to clear the stored data from
meters.
1.Enter setup mode to select memory
clear function. CLr P10 will be displayed
on the LCD (Fig 1).Press ENTER for P11
setting (Fig 2). The default “no” icon will
flash on the display and P11 will be
displayed on the upper part of the screen.
2.Press △ or ▽ key to change the status
from no to YES (Fig 3), press ENTER
key again to confirm and clear all.
The LCD will return to P10 when
memories are deleted. ( Fig 1)
3.I f the ph probe is currently attached, it
only deletes the ph records in the
memory. If the D.O. probe is plugged,
then only the D.O. records will be deleted.
CON
Fig. 1
CON
Fig.2
CON
Fig.3
11
NOTE:
The memory clear option is designed to
clear 99 memories at once. Please
consider carefully if you decide to clear
the memory. This operation can not be
recovered.
P20 PH Electrode Slope (Review)
P20 is used to view the pH electrode
data (slope value) and used this data
to judge the availability of pH probe.
1. Enter setup mode, press △ or ▽ key
to enter the ELE P20 (Fig 4) display.
2. Press ENTER to view P22, the slope
value will be displayed on LCD, same
as P23 (Fig 5). As maximum 3 PH
calibration points is allowed in this
meter so the user can review two
slopes value. If the value is <75%
or >115%, it is suggested to change
electrode immediately.
PH
Fig.4
PH
%
Fig.5
12
P30 Cond. Calibration (Review)
P30 is used to review the previous
conductivity calibration data at different
range.
1.Enter to setup mode and press △ or
▽ key in the setup mode to check the
CAL P30 calibration message.(Fig 6)
2.Press ENTER key, to enter the
calibration information screen with
P32 . P33. P34. P35 CON. uS or mS
calibration information.(Fig 7)
3.P32 will display calibration information
in Range1. P33 will display calibration
information in Range 2.…P35 will
display calibration information in
Range 4.
4.Press ENTER key to return to CAL 30
screen.(Fig 6)
CON
Fig.6
CON
uS
Fig.7
13
P40 Cond. Cell Constant (Review)
P40 is used to review the current cell
constant at different 4 ranges. This
value should be between 0.8 to 1.2.
1.Enter to setup mode and and press △
or ▽ key in the setup mode to check
CEL P40 display(Fig 8).
2.Press ENTER key to enter P42. P43.
P44 and P45 screen (Fig 9) and review
cell constant of each range. Press
ENTER key again to return on the
CEL P40 screen. (Fig 8)
CON
Fig. 8
CON
Fig.9
P50 Cond. TDS factor (Adjustbale)
P50 is used to customize the factor to
convert conductivity into TDS value.
1.Enter to setup mode and and press △
or ▽ key in the setup mode to check
tdF P50 display.
2.Press ENTER key to enter and press
△ or ▽ to adjust. The default is 0.50
and adjustable range is 0.30 ~1.00.
Press ENTER key again to save and
return to P50 screen.
14
P60 DO Review and Set parameters adjustable
P60 is used to review and customize
the suitable setting for D.O. Measuring.
For example, if the measured target is
sea water or in plateau, it is required to
setup correct salinity value and altitude.
1.Enter to setup mode and press △ or
▽ key in the setup mode to enter COE
P60 screen (Fig 10). Press ENTER
key to display P61 and review previous
DO calibration temperature (Fig 11).
This value helps to judge root cause
while seeing error code E21 on LCD.
E21 means the measured temp. &
calibration temperature has 10 degree
C difference.
2.Then press “ENTER” into P62 ppt, the
value will be flashed on the screen
(Fig 12 ). You can manually enter the
salinity compensation.(Use salinity
value measured by the conductivity
probe). Press△ or ▽ to adjust the
salinity value. The value can be
adjusted from 0.0 to 42.00ppt.
3.Press Enter to confirm. then enter
P63 M to program the height from sea
level (Fig13). The value will be flashed
on the screen. You can manually press
△ or ▽ key to adjust from 0~3500M
(100M per step),press ENTER to
confirm and enter COE P64 FAS
screen.
4.See page 8 for the definition of FAS
and SLOW. You can press△ or ▽ key
to adjust, press ENTER to confirm.
15
DO
Fig. 10
O
C
DO
.
Fig.11
DO
ppt
Fig.12
DO
M
Fig.13
16
P70 Temperature unit adjustable
This function allows you to select the
unit of the temperature:
1. Press △ or ▽ key in the setup mode
to enter the temperature unit P70
screen. Press the ENTER key to select
temperature unit setting.“unt”will
display on the left side of the screen
(Fig 14 )
2. At P70 screen, press ENTER key to
enter P71. The default "C" will be
flashed on the main screen.(Fig15).
If the unit you need is degree oC, press
ENTER key to confirm.
3. If the unit you desired is degree OF,
press△or ▽ key to change the C to F
and then press ENTER key to confirm.
The meter will return to P70 screen
(Fig 14)
Fig.14
Fig.15
P10 to P70 summary w/ default value
Param eters
De fault Setting Value
P10 Memory Clear-CLr adjustable
No .
P20 PH E lec trod e Slope Rev iew
100%
P30 Cond. Calibratio n Re view
146.6uS,1 413uS
12.88mS, 51.5mS
P40 Cond. Cell Cons tant Review
1.00
P50 Cond. TDS fac tor adjus table
0.5
P60 D O review and Set param eter adjustable
25 0 C, 0ppm, 0Meter, FAS
P70 Temperature unit s etting adjus table De gre e ℃
17
CALIBRATION
PH probe
Remove the anti-collision hood from
probe and rinse the electrode in de-ion
ized water or pure water. DO NOT wipe
the pH probe dry. Wiping the probe may
cause static and cause calibration and
measurement instability.
Selecting the proper and fresh buffer will
help the meter to recognize the buffer
and calibrate the probe precisely. Please
clear the electrode with de-ionized
water or detergent, and follow the
procedures for PH calibration value
setup. It is suggested to do the calibration
every half month.
The pH calibration procedure is as
followings:
Insert the PH probe into the meter.
1. Power on the meter
2. Pour PH buffer into a clean container
and put the electrode into buffer.
Suggest to start from middle range
buffer, such as pH7.01
3. Make sure the pH electrode is
completely immersed in buffer and stir
for about 1 minute to get homogenous
condition without creating bubble.
4. Press CAL/ESC key for 2 seconds to
enter “ calibration” mode.
18
5. Once the probe auto recognize the
pH buffer. For example, 7.01, the “CAL”
and 7.01 will flash. (Fig 19)
6. If the auto recognized value is different
from your standard buffer, pressing
△ or ▽ key to adjust.
7.Wait for 30 seconds or pressing ENTER
key, SA ( Fig 20) will be displayed on the
LCD to indicate the calibration is saved.
Now, the displayed pH value should be
in +/-0.02pH accuracy tolerance range.
8. Repeat step 1~7 to do 4.01 & 10.01
calibration.
9. Always use clean water to wash before
immersing into different buffer.
10. Put on semi transparent probe cover to
protect sensor before storage and ensure
there is enough storage buffer inside
cover.
PH
CAL
O
C
Fig.19
O
C
PH
Fig.20
19
CONDUCTIVITY CALIBRTAION
There is no need to remove anti-collision
hood from probe before calibration. It is
also nice to clean the electrode by soft
brush to sweep the dirty away before
immersing into buffer.
Select a standard buffer which is closed
to your measuring range or referring to
following table. Normally calibrate at 2/3
full range is suitable for most condition.
For example, if the measuring range is
0~1999mS. You can use 1413uS solution
to calibrate.
DO NOT reuse the calibration solution.
Contaminants in the solution will affect
the calibration and the accuracy. Be
sure to use fresh solution each time.
Cond. Measuring range
1
2
3
4
Suggested buffer range
60.0~170.0uS
600~1700uS
6.00~17.00mS
60.0~170.0mS
0~199.9uS
0~1999uS
0~19.99mS
0~199.9mS
For Conductivity calibration, you only
need to do single point calibration.
The previous calibration data will be
replaced after re-calibration. For
example, if you previously calibrated
conductivity meter at 1413 uS in the 0
to 1999 uS range, when you
re-calibrate it at 1500 uS again (also in
0~1999uS range), the previous 1413uS
will be replaced in this range
(0~1999uS). However, the meter will
retain the calibration data for other
ranges which are not yet re-calibrated.
20
When
When
should
should
you
youdo
dothe
thecalibration?
clibration?
We strongly suggest you calibrate the
probe before the first time measuring.
lf the conductivity of measured solutions
are <100 uS,please calibrate the meter
at least once a week to maintain
specified accuracy.If the meter is used
in the mid ranges, the calibration is
suggested at least once a month.If the
measurement is proceed at extreme
temperature, we suggest to calibrate at
least once a week.
CONDUCTVITY CALIBRATION
Please follow steps below for
conductivity calibration:
1.Insert the probe into de-mineralized
water or distilled water for about 30
minutes to rinse the probe.
2.Select appropriate conductivity
solution for calibration.
3.Pour the solution into a clean container.
4.Turn the meter on. Enter normal mode.
5.Dip the probe into buffer and stir for
about 1 minute to create
homogeneous buffer.
Tap probe to remove air bubbles from
sensing area. Ensure the sensing area
is completed soaked in the solution, no
bubble attached. Don’t make the
sensor touch the bottom of the glass
since it will affect the conductivity.
Wrong
Dip/tap probe in buffer
to remove air bubble
from electrode.
21
Correct
6.Press CAL key more than 2 seconds
to enter calibration. The probe will
automatically detect the conductivity
solution value and the value will be
flashed on the LCD. ( Fig 21 ) Press
the △ or ▽ key to adjust the value
on the LCD to match the standard
calibration value.
CON
O
C
CAL
uS
Fig. 21
7.When the conductivity solution value
on the LCD matches the calibration
solution value, Press ENTER key,
the “SA" will be displayed on the
LCD. (Fig 22).Then the LCD will stop
flashing and return to normal mode
then the conductivity calibration is
completed.
CON
O
C
CAL
Fig 22
NOTE:
The characteristics of the Probe may
degrade with time and usage.
Whenever an E16 still occurs after
calibration, please replace a new probe
immediately.
8.Repeat step 1~7 for other ranges
calibration if needed.
9. Always use clean water to wash before
immersing into different buffer.
22
NOTE:
If you would like to exit the conductivity
calibration mode without saving,
please press CAL/ESC key instead
and it will retain the meter's previous
calibration data for the current range.
DO % SATURATION CALIBRATION
For accurate reading, before each
operating and after replacing the
membrane set, calibration is highly
recommended. No need to remove
anti-collision hood before calibration.
Calibration Steps
1.In normal mode, switch the D.O. Unit
to % and hold the probe in air, wait for
few minutes until the reading is
stabilized. Press CAL/ESC to calibrate
for 100% saturation calibration, CAL
icon is flashing on LCD.(Fig 23)
2.Wait some seconds, when the reading
is stabilized, press ENTER to finish
the calibration.
3.You can stop the calibration by
pressing CAL/ESC.
4.After calibration, the displayed value
should be 99.0% to 101.0%.
5.Whenever an error occurs during
calibrating, the ERR indicator will
appear. The error might be caused by
the condition of low electrolyte or
probe defect. See next section to learn
how to maintain D.O. Probes
DO
CAL
O
C
%
Fig. 23
23
FIRST TIME LONG TERM WARM UP
While following condition happens,
please turn on the meter and wait for
about one hour until the reading on
LCD is stabilized, then follow the steps
in above section to run calibration.
(1) D.O. probe has just been plugged
into the meter.
(2) The membrane set has been
replaced.
(3) The batteries have been replaced.
PROBE MAINTENANCE
Electrode maintenance:
A) Make sure the electrode is clean!
B) Please store the electrode
carefully, rinse it carefully in
de-ionized water before using.
Please keep it under 0~50 OC
temperature after each usage.
PH probe maintenance
The pH glass bulb should always be
moistened by using the probe cover
with storage buffer. Always rinse
the pH electrode with pure water or
distilled water before use. Never touch
or rub the glass bulb for lasting pH
electrode life.
COND probe maintenance
Please soak the conductivity probe in
distilled water for 30 min before each
usage to avoid the inert effect.
Only use soft brush or clean water to
clean probe surface if dirt is attached
on surface.
If the electrode surface is contaminated,
place the probe in a diluted detergent
for about 15minutes,then rinse it with
distilled water. After clearing, please
keep probe dry for storage.
24
DO probe maintenance
Please plug the probe onto meter even
during storage to shorten the activation
time.
INSPECTION D.O. PROBE
Inspection probe while receiving a new
probe or seeing strange reading or probe
has been used for one year.
1. It is fine to see electrolyte is not full.
Only fulfill electrolyte and replace
membrane set when it is less than ½ full.
2. Be sure to check the central of the
electrode surface. It should be clean in
the working area as below photo:
Clean surface
on working area
Best condition.
3. If the working area is not clean, check
following section to clean it up.
HOW TO CLEAN THE ELECTRODE
If too many residues have been found
on electrode working area, it is suggested
to clean the electrode as too many
residues attached might disturb the
chemical reaction during measuring.
You can do membrane change and
electrolyte refill
DO probe
together.
(1) Rotate to
unscrew and
disassemble
the probe. Sprue for solution filling
25
Membrane Set
(2) Use soft / long fiber cloth to clean
the “surface of working area” where
residues attached on.
NOTE: If the residues cannot be removed
by cloth, please use fingernail to scrape
lightly on the “surface of working area”
to remove it.
Disassemble the probe
Clean the surface of
working area by cloth
(3) Use a knife blade to scrape lightly
on the “electrode” to remove the
white residue as below image.
NOTE: Please take care on this part, do not
scrape the “surface of working area”
by knife blade to prevent damage.
BEFORE
AFTER
(4) After scrap off the white residues,
use clean water to wash away the
remaining impurities.
HOW TO REPLACE MEMBRANE SET
Please replace membrane set when any
of following situation occurs:
a. The probe has been used for >1 year
b. Seeing error code E2/E3 but the probe
central working area is still clean.
c.Electrolyte is less than ½ full
26
d.Membrane is broken or wrinkled
e.Measuring speed is much slower than
before.
The procedures are:
(1) Prepare a new membrane set.
NOTE: Due to the structure of membrane is
delicate, once the membrane set has
been removed from the probe, it is
“not suggested” to re-installed the
same membrane set repeatedly as it
might influence the reading.
(2) Rotate to unscrew the probe
protective cover and remove the
membrane set from probe.
DO probe
Membrane Set
Sprue for solution filling
(3) Follow the steps in above section to
“clean the electrode”.
(4) Slowly pour the electrolyte solution
to the new membrane set till full.
(5) Secure and install the new
membrane set on the probe
properly.
After install the new
membrane set with
electrolyte filled, it is
normal to found some
small bubbles inside of
the membrane.
(6) Proceed “calibration” as above
section after replace the membrane
set.
NOTE: Under normal use, the extra membranes
set enclosed in package will be enough to
cover the replacement need for entire DO
probe life time.
27
TROUBLE SHOOTING
Can't power on
1. Did't press the power key properly
2. Batteries are not installed or are not
installed properly
Solution:
1. Press power key for more than 0.3
seconds to turn on the device.
2. Check whether batteries are in good
contact and correct polarity. You can
also remove the batteries >10 mins
and then install the batteries again.
Low battery icon
1.Battery power is too low to provide
accurate reading
Solution:
1. Remove all old batteries > 10 mins
and then install new batteries with
correct polarity and good contact.
Please don't mix new and old batteries
since it is easy to cause battery
electrolyte leakage.
Unstable pH reading
1. Means the pH electrode is aging
Solution:
1.pH probe need to be replaced
Error code E02
1. E02 means the measured value is
lower than specified range
Solution:
1. Put the probe in normal tap water at
room temp. for 30 mins to cancel E02
from display.
2. If above is not working, run below
procedure:
-For pH probe, run calibration
-For conductivity probe, run calibration
-For D.O, probe, run 100% calibration
28
Before this, check if the probe electrode
require routine maintenance.
Error code E03
1. E03 means the measured temp. is
higher than specified range
2. On D.O probe, it can also mean D.O.
probe hasn’t be actived yet.
Solution:
1. Put the probe in normal tap water at
room temp. for 30 mins to cancel E03
from display.
2. If above is not working, run below:
-For pH probe, run calibration
-For conductivity probe, run calibration
-For D.O, probe, connect the D.O probe
with meter, turn on the meter and leave
it for at least one day to activate the
D.O. Probe, and then proceed the D.O.
calibration. Keep the D.O. Probe
connected with meter after using is
suggested. Besdies, check if the probe
electrode require routine maintenance.
Error code E04
1. E04 means the original data error are
in error, only for pH and Conductivity.
Solution:
1. Check whether the measured temp.
is over range. If yes, leave the probe
in normal tap water at room temp. for
30 mins to cancel E04 from display.
Error code E13
1.E13 means pH probe calibration error
Solution:
1. Run pH calibration again. While doing
this, make sure pH buffer is correct
and fresh to get good result.
29
Error code E16
1. E16 means Cell constant of Cond
prober is out of the range
Solution:
1. Re-turn on meter several times to
cancel the error code from display.
2. Try to calibrate the conductivity probe
to cancel E16 from display
Error code E21
1.This is for D.O. probe, means the
temp. between measurement and
calibration is differed for > 10 C
Solution:
1. Run the D.O. 100% calibration again
in air at the place where the temp. is
closed to measuring liquid. EX: if your
testing pond is 35C, do the calibration
in 35C air, don't do the calibration in
cool air-conditioned room.
Error code E31
1.E31 means the measuring circuit of
device hardware failure.
Solution:
1. Power on/off several times to fix.
Error code E32
1.E32 means the memory IC of device
hardware failure
Solution:
1.Power on/off several times to fix.
Error code - - 1. - - - means the probe isn't plug.
Solution:
1. Check the probe plug again, make sure
the contact is good and tight.
2. If probe is well plugged but still seeing
- - -, turn off device and power on again
to have device link to probe again.
30
SPECIFICATION
84051
pH range/resolution
2.00~12.00/resolution:0.01
+/-0.1
pH accuracy
Cond. range
0~199.9, 0~1999uS/cm;0~19.99, 0~150.0mS/cm
Cond. accuracy
Cond. resolution
TDS range (f is TDS factor)
+/-1% F.S +/- 1 digit
0.1uS/cm, 1uS/cm;0.01mS/cm, 0.1mS/cm
0~199.9 * f, 0~1999*f ppm;0~19.99*f, 0~150.0*f ppt
TDS resolution &accuracy
0.1, 1ppm, 0.01, 0.1ppt / +/-1% F.S +/- 1 digit
TDS factor
0.30~1.00
Salinity range/resolution 0~10.00ppt; 0~42.0ppt(SEA WATER)/ 0.01 ppt, 0.1ppt
Salinity accuracy
D.O. range
D.O. accuracy
+/-1% F.S +/- 1 digit
0.0~199.9% (0.0~30.0mg/L)
+/-3% of F.S. +1 digit
D.O resolution
0.1
o
Temp. range
-5~60.0 C
Temp. accuracy
+/-0.5 C
o
Temp. resolution
Compatible probe
LCD size(mm)
Operating temp.&RH%
Storage temp.&RH%
Dimension(mm)
0.1
PH PROBE, COND. PROBE AND D.O. PROBE
26(H)x44(W)
o
0~50 C, Humidity < 80%
-20~60 oC, Humidity < 90%
175(L)x70(W)x33(H)
Weight
Power
200g
4PCS AAA Batteries
WARRANTY
The meter is warranted to be free from
defects in material and workmanship for
a period of one year from the date of
purchase. This warranty covers normal
operation and does not cover battery ,
misuse , abuse , alteration , tampering ,
neglect , improper maintenance , or
damage resulting from leaking batteries .
Proof of purchase is required for warranty
repairs . Warranty is void if the meter has
been opened
RETURN AUTHORIZATION
Authorization must be obtained from the
supplier before returning items for any
reason . When requiring a RA (Return
Authorization) , please include data
regarding the defective reason, the
meters are to be returned along with good
packing to prevent any damage in
shipment and insured against possible
damage or loss.
31
Accuracy, the Zenith of
Measuring / Testing Instruments !
Hygrometer/Psychrometer
Thermometer
Anemometer
Sound Level Meter
Air Flow meter
Infrared Thermometer
K type Thermometer
K.J.T. type Thermometer
K.J.T.R.S.E. type Thermometer
pH Meter
Conductivity Meter
T.D.S. Meter
D.O. Meter
Saccharimeter
Manometer
Tacho Meter
Data logger
Temp./RH transmitter
Wireless Transmitter ..........
More products available !
2017.06.V01
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