Leadtek Turbidity User manual

Turbidity Controller

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Content
Safe operation procedures--------------------------------------------------------------------------- 2
Instrument use------------------------------------------------------------------------------------------- 2
Product content-------------------------------------------------------------------------------------- --- 2
Specifications----------------------------------------------------------------------------------------- --- 3
Instrument installation--------------------------------------------------------------------------------- 4
Connection label------------------------------------------------------------------------------------- --- 5
Electrode connection figure-------------------------------------------------------------------------- 5
Relay contact protection ------------------------------------------------------------------------------ 6
Display ---------------------------------------------------------------------------------------------------- 7
Key---------------------------------------------------------------------------------------------------------- 8
Keeping mode------------------------------------------------------------------------------------------- 8
Setting----------------------------------------------------------------------------------------------------- 9
Current 1 settings---------------------------------------------------------------------------------------- 10
Current 2 settings---------------------------------------------------------------------------------------- 10
Relay 1 settings------------------------------------------------------------------------------------------- 11
Relay 2 settings------------------------------------------------------------------------------------------- 11
Relay 3 settings------------------------------------------------------------------------------------------- 12
Measuring settings-------------------------------------------------------------------------------------- 12
Temperature settings----------------------------------------------------------------------------------- 13
RS485 settings-------------------------------------------------------------------------------------------- 13
Date settings---------------------------------------------------------------------------------------------- 13
Data log settings----------------------------------------------------------------------------------------- 14
Output test----------------------------------------------------------------------------------------------- 14
Language Settings--------------------------------------------------------------------------------------- 14
Reset the parameters----------------------------------------------------------------------------------- 15
Record query--------------------------------------------------------------------------------------------- 15
Calibration------------------------------------------------------------------------------------------------ 16
Default----------------------------------------------------------------------------------------------------- 19
Password-------------------------------------------------------------------------------------------------- 21
Error code------------------------------------------------------------------------------------------------- 21
RS485 command---------------------------------------------------------------------------------------- 21

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1. After unpacking the instrument please check for damage due to shipping.
Safe operation procedures
Read the following instructions before using the instrument.
2. The instrument must be operated by trained professional and technical personnel.
3. Read the manual carefully to avoid incorrect wiring connection that can cause
equipment damage and safe problem.
4. After wiring carefully check all are correct then can power on and make sure the
others equipments are correct.
5. Please avoid installing in a high humidity, high temperature, corrosive and in a direct
sunlight environment.
6. Please separate the power lines of instrument from other machines that produces
high noise in the power lines.
Instrument use
Instruments are used in industrial measuring of the temperature and turbidity, such as
urban wastewater treatment, sanitation network, industrial effluent treatment, surface
water monitoring, drinking water etc.
The instrument can be panel, wall or pipe mounted.
The instrument provides two current outputs. The maximum load is 500 Ohm.
The instrument provides 3 relays. It can pass though a maximum of 5 Amps at 250 VAC or
5 Amps at 30VDC.
Product content
The product package contains 1 instrument, the printed manual, 4 sets of brackets.(fixed
block, fixed bar, screw)

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Specifications
Functions NTU/FNU mg/L
Measuring range 0.00 到4000.0 0.00 到4500.0
Resolution
0.1
0.1
Accuracy < 5% <5%
Temp. compensation NTC
Temp. range 0.0 to +50.0℃
Temp. resolution
0.1
℃
Temp. accuracy ±0.2℃
Data update time 1-60 Second
Ambient temperature
range
0 to +70℃
Storage temp. -20 to +70℃
Dsiplay
Back light, dot matrix
NTU current output1 Isolated, 4 to 20mA output , max. load 500Ω
Temp. current output 2
Isolated, 4 to 20mA output , max. load 500Ω
Current output accuracy ±0.05 mA
RS485 Modbus RTU protocol
Baud rate 9600/19200/38400
Maximum relay contacts
capacity
5A/250VAC,5A/30VDC
Cleaning setting ON: 1 to 1000 seconds, OFF: 0.1 to 1000.0 hours
One multi function relay clean/period alarm/error alarm
Relay delay 0-120 seconds
Data logging capacity
500,000
Language selection English/traditional Chinese/simplified Chinese
Waterproof grade IP65
Power supply From 90 to 260 VAC, power consumption < 5 watts
Installation
panel/wall/pipe installation
Instrument size 144mm X 144mm X 105mm (H/W/D)
Cutout size 138mm X 138mm
Weight 0.85Kg

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Instrument installation
The instrument can be panel, wall or pipe mounted installation.
Panel Installation: Make a 138x138 mm square cutout and insert the instrument. Screw in
the fixed block with the screws and fixed bar.
Cutout size
Installation figure

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Wall and pipe installation
Connection label
Electrode connection figure

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Relay contact protection
Electrical spark at the relay contact may affect the life of the relay, especially in an
inductive and capacitive load. In order to inhibit the spark and arc, user should use an RC
circuit to extend the life of the relay.
AC protection, use for inductive load
1. load
2. RC eliminate spark, using in 220VAC, R=100 ohm1W,
3. Relay contact
A. DC protection ,A1: inductive load A2: 1N4007, A3: relay contact
B. AC/DC protection ,B1: capacitive load ,B2: 0.8 Ohm/1W（DC24V）,B3: relay contact
C. Resistive load ,C1:lamp bulb ,C3:relay contact

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Display
1. Date and time
2. Main display
3. Unit
4. Temperature and unit
5. First current output
6. Second current output
7. Measurement status and Error indicator, there is no display if meter is in keeping
mode
8. Count down timer: cycle time/clean time, it also displays the “delay” when relay3 has
a delay enabled.
9. Temp. compensation: auto(ATC)
10. Relay indicator

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MODE SHIFT UP DOWN ENTER
Key
Key name
Meas. status
Setting status
Cal. status
Record status
MODE
Enter password
Exit
Exit
Exit
SHIFT none Move digit Mode digit Mode digit
UP
Enter record
Inc
Inc
Inc
DOWN
None
Dec
Dec
Dec
ENTER ON/OFF back light Enter Enter Enter
Last current: User can set the output current keep at the last current when
instrument goes into keeping mode.
Relays in keeping mode: Relay1 and Relay2 open.(inactive)
Keeping mode
Keeping mode is a safe mode. It is for Calibration, Setting, Record and Clean. In this mode
all the relays are open( inactive), current output follows the setting by user(last current or
fixed current).
The instrument will enter keeping mode when user presses into Calibration, Setting,
Record or the instrument works in clean mode.
It will in keeping mode around 10 seconds when it goes back to measurement mode form
the above mentioned 4 mode then left keeping mode.
The instrument will go into the keeping mode when turn on the power.
Current output in keeping mode:
User has two choices: fixed current output or last current output.
Fixed current: User can set the output current from 4.00 to 20.00mA when
instrument goes into keeping mode.

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Setting
Press MODE key to enter the password menu and then press UP/DOWN/SHIFT key to
input password 1200 then press ENTER will enter to setting mode or press MODE key to
exit. If no key is be pressed and over 10 minutes then it will go back to measurement
mode.
Main display
Press UP/DOWN key to choose functions, press ENTER key enter the function.
Page1 Page2
Notices:
1. When the input data is not in correct range then it will display ERROR on the top of LCD
2. After input data user needs to press ENTER to save the data.
3. Press MODE to exit.
4. No key is be pressed in 10 minutes then it will go back to measurement mode.