scigiene SP-850048 User manual

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DO/Multi-Parameter Meter
SP-850048
Instruction Manual

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INDEX
INTRODUCTION…………………………………………………………………………………...….3
MATERIAL SUPPLIED………………………………………………………………………………..3
POWER SUPPLY………...…………………………………………………………....………………4
KEY PAD OPERATION……………………………………………………………………………….4
LCD DISPLAY………………………………………..……….……………………….……………….5
OPERATION…………………………………………………………………...………………………7
DISSOLVED OXYGEN MEASUREMENT…………...……………………………………………..8
PH MEASUREMENT……...…………………………………………………………………………..9
CONDUCTIVITY MEASUREMENT……………………………………………………………..….10
SALINITY MEASUREMENT…………………………………………………..…………………….10
TDS MEASUREMENT…………………...…………………………………..……………………...10
MEMORY RECORD……………………...……………………………………………..…………...11
RECALL MODE………………...…………………………………………………..………………...11
BACKLIGHT…………………………………………………………………………………………..11
SETUP…………………………...……………………………………………………………………12
P10 Memory Clear - Clr Adjust………………………………………………...…………....13
P60 DO Review and Set parameters adjustable…………………………………….…….14
P20 pH Electrode Slope Review…………………………………………………………….16
P30 Cond. Calibration Review……………………………………………………………….16
P40 Cond. Cell Constant Review……………………………………………………………17
P50 Cond. TDS factor adjustable……………………………………………………………18
P70 Temperature unit adjustable………………………………...............................…….18
DO % SATURATION CALIBRATION……………………………...……………………………....18
CALIBRATION pH Probe…………………………………………...……………………………….20
CONDUCTIVITY CALIBRATION……………………………………...……………………………21
PROBE MAINTENANCE……………………………...…………………………………………….24
DO probe maintenance…………………………………………….…………………………24
pH probe maintenance…………………………………………………………………….....27
COND probe maintenance………………………………………...…………………………27
TROUBLESHOOTING……………………………………….………………………………......….28
SPECIFICATION ………………………………………………………………………………...….31
RETURN AUTHORIZATION…………...…………………………………………………………...31

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INTRODUCTION
Thank you for purchasing Multi-function waterproof D.O./pH/Cond./TDS/Salt Meter.
Please read this manual thoroughly before operation.
Features:
•Large LCD with multiple parameters display: D.O., PH Conductivity, TDS, Salinity
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 with guard.
•Temperature °C/°F is switchable. e 1 hour auto power off.
•Application:
oExcellent to use in fresh water aqua farm.
oExcellent to use in sea water aqua farm.
MATERIAL SUPPLIED
A basic package contains:
Meter x 1 pc
Probe, electrolyte and 2 heads (probe type & Qty is depended on your ordering p/n)
Hard carry case x 1 pc
Operation manual x 1pc
AAA Battery x 4pcs
Probes for this series:
D.O. Probe (w/maintenance accessory) - included
pH probe (sold separately)
Conductivity/TDS/Salt probe (sold separately)

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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 cannot 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 D.O.in% or D.O.in mg/I(ppm).
•Press to increase the setting value in SET 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.
•Press to save the current reading.
•Press to decrease the setting value in SET mode.
•Press to confirm the calibration or parameter setting.
•Press to turn on/off backlight.

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LCD DISPLAY
Full Display
Using D.O. probe
1. The DO 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.

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Using pH probe
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.
Using Conductivity/TDS/Salinity probe
1. The conductivity 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.
4. Press “EC mode” key to switch the display to TDS or salinity reading.

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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, D.O. probe with green connector, COND./TDS/Salinity probe with
blue connector.
The charts below indicate the electrode and temperature sensor location.
All probes are provided with an anti-collision 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.

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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. Select fast or slow. The D.O. will be displayed on the LCD
with mg/I unit.
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 13)
•If D.O. probe is unplugged from meter and not in use for long time, it might take
about 10 minutes 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 disadvantage 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 minutes. The advantage of Slow
mode is electrolyte consumption is lower and less maintenance work to do.
Step 2
Run 100% calibration in air. (Refer to pg. 18)
Step 3
Switch from % to mg/L then dip the probe into the sample. Making sure the electrode
tips is totally immersed when you stir it.
DISSOLVED OXYGEN MEASUREMENT

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Step 4
Wait until the reading is stabilized, then take a new measurement.
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.
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 KCI solution before taking the reading. Then, put on anti-collision hood for better
protection.
Step 2
Press power on key. Run calibration. (Refer to pg. 19)
Step 3
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.
Step 4
Wait until the reading is stabilized.
PH MEASUREMENT

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Please put on anti-collision hood to provide better protection. There is no need to
remove hood even when you plan to do calibration. (Refer to pg. 20)
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. Making sure the electrode tip 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.
Take a new 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.
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.
CONDUCTIVITY MEASUREMENT
SALINITY MEASUREMENT
TDS MEASUREMENT

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In the normal mode, press MEM key can memorize up to 99 points records. The M
EMO 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/I (ppm) mode
before proceed memory recording.
To enter RECALL (REC) mode, press and hold RECALL key for more than one second
in the measurement mode, then press 6 or 9 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.
In normal mode, press “ENTER” key
to switch on the backlight. To turn it off, press “ENTER” key again.
MEMORY RECORD
RECALL MODE
BACKLIGHT

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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 seconds 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
COND
DO
P10 Memory Clear-CLr adjustable
V
V
V
P20 PH Electrode Slope Review
V
P30 Cond. Calibration Review
V
P40 Cond. Cell Constant Review
V
P50 Tds factor adjustment
V
P60 DO Review and Set parameters adjustable
V
P70 Temperature unit setting adjustable
V
V
V

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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. If 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.
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 cannot be recovered.
P10 Memory Clear-CLr (adjustable)

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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 ▽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
(Fig 13). 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.
P60 DO Review and Set parameters adjustable

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P20 is used to view the pH electrode data (slope value) and used this data to judge the
availability of p H 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.
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 Range 1. 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)
P20 PH Electrode Slope (Review)
P30 Cond. Calibration (Review)

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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 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)
P40 Cond. Cell Constant (Review)

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P50 is used to customize the factor to convert conductivity into TDS value.
1. Enter to setup mode and press △or ▽key in the setup mode to check td F 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.
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. (Fig 15). 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)
P50 Cond. TDS factor (Adjustable)
P70 Temperature unit adjustable

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P10 to P70 summary w/default value
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 O/o and h old the probe in air, wait for
few minutes until the reading is stabilized. Press CAL/ESC to calibrate for 100%
saturation 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% SATURATION CALIBRATION

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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.
Remove the anti-collision hood from probe and rinse the electrode in de-ionized 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.
PH probe CALIBRATION