leadtec SS User manual

SS/Turbidity/Sludge blanket 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-------------------------------------------------------------------------------------- 13
Temperature settings----------------------------------------------------------------------------------- 13
RS485 settings-------------------------------------------------------------------------------------------- 13
Date settings---------------------------------------------------------------------------------------------- 14
Data log settings----------------------------------------------------------------------------------------- 14
Output test----------------------------------------------------------------------------------------------- 14
Language Settings--------------------------------------------------------------------------------------- 15
Reset the parameters----------------------------------------------------------------------------------- 15
Record query--------------------------------------------------------------------------------------------- 15
Calibration------------------------------------------------------------------------------------------------ 16
Default----------------------------------------------------------------------------------------------------- 20
Password-------------------------------------------------------------------------------------------------- 21
Error code------------------------------------------------------------------------------------------------- 21
RS485 command---------------------------------------------------------------------------------------- 22

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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 suspended solids
turbidity, sludge blanket, such as urban wastewater treatment, treatment of industrial
effluents, sludge treatment, dredging site, sedimentation tank, 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 SS Sludge blanket Turbidity
Measuring range 0.00 – 50.00g/L 0.0-100.0% 0.0-4000.0
Resolution
0.01
0.1
0.1
Accuracy <±5% <±2% ±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℃
Display Back light, dot matrix
Main 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.

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Current 1 settings
1. Set the corresponding 4.00mA to SS/SB/
NTU.
2. Set the corresponding 20.00mA to SS/SB/
NTU, the difference between 4.00mA and
20.00 mA at least for SS is 1.00g/L, for SB is
10.0%,for NTU is 10.0.
3. Set the offset current of SS/SB/NTU, the
range is±1.00mA.
4. The filter time range is 0-120 seconds, the
low pass filter of software will active when
the current from one point to another point if user sets the filter time.
5. Set the current 1 output mode(fixed / last) when instrument enter into keeping mode.
Current 2 settings
1. Set the corresponding 4.00mA to
temperature.
2. Set the corresponding 20.00mA to
temperature, the difference at least
between 4.00mA and 20.00 mA is 10.0℃.
3. Set the offset current of temperature, the
range is±1.00mA.
4. The filter time range is 0-120 seconds, the
low pass filter of software will active when
the current from one point to another point if user sets the filter time.
5. Set the current 2 output mode(fixed / last) when instrument enter into keeping mode.

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Relay 1 settings
1. Press UP/DOWN key to ON/OFF
(enable/disable) relay1.
2. Close set point: active point for SS/SB/NTU.
3. Open set point: inactive point for SS/SB/
NTU
4. Delay time: the range is 0-120 seconds.
Relay needs to delay first then active if the
measuring data is reach to close set point.
Ex: If user wants turn on the pump at 100.0
NTU and turn off it at 0.0 NTU, then the close
S.P. needs to set to 100.0 NTU, Open S.P. sets to 0.0 NTU.
Relay 2 settings

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1. Press UP/DOWN key to ON/OFF (enable/
disable) relay2.
2. Close set point: active point for SS/SB/NTU.
3. Open set point: inactive point for SS/SB/
NTU.
4. Delay time: the range is 0-120 seconds.
Relay needs to delay first then active if the
measuring data is reach to close set point.
Ex: If user wants turn on the pump at 0.0 NTU
and turn off it at 100.0 NTU, then the close S.P.
needs to set to 0.0 NTU, Open S.P. sets to 100.0 NTU.
1. Press UP/DOWN key to ON/OFF
Relay 3 settings
(enable/disable) relay3.
2. Period time: The period for Rinsing or
interval function.
3. Clean time: When period is timeout then
relay active.
4. Delay time: the range is 0-120 seconds.
Relay needs to delay first then active if the
period is timeout.
5. Function: press UP/DOWN key to choose
Rinsing/Interval/Error.
Notice:
1. Rinsing: when period timeout then clean-relay will active, when clean time is timeout
the repeat count for the period.
2. Interval alarm: When period timeout then clean-relay active until user resets the
interval then the clean-relay inactive and repeat count for the period.
3. Error alarm: The clean-relay active when there is a error produce. No delay time
function in this mode.

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Measurement settings
1. Choose the mode for measuring, press
UP/DOWN key to choose.
2. Offset , range for SS is±5.00g/L ,for SB is±
10.0%,for NTU is±100.0.
3. Filter: Range 0-10.
4. Measuring period, range is 1-60 second.
Notice:
If the reading is not stable then user can set
the filter to average the readings.
Temperature settings
1. Temperature offset ,the range is±5.00℃.
2. Temperature display: display the
temperature on measurement mode or
not.
RS485 settings
1. ID address:1-255.
2. Baud rate , press UP/DOWN key to choose.

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Date settings
Press UP/DOWN key to set the date. When
power off the date will be kept for around 2
days.
Data log settings
1. Press UP/DOWN key to ON/OFF
(enable/disable) this function.
2. Display type, press UP/DOWN key to choose
3. Erase all the records.
4. Saving period from 5 to 120 second.
Notice:
1. When user chooses ON, then it will save measuring data follow the save period time.
2. Display type: Record, display the detail of record(5 records in one page), XY
chart, display a chart.(150 records in one page)
3. When reset the records, it will spend around 10 seconds.
Output test
1. Current 1 output: 4.00-20.00mA, press
UP/DOWN to set.
2. Current 2 output: 4.00-20.00mA, press
UP/DOWN to set.
3. Relay 1 output, press UP/DOWN to choose.
4. Relay 2 output, press UP/DOWN to choose.
5. Relay 3 output, press UP/DOWN to choose.
Notice: This function for testing the output
only.

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Language settings
Press UP/DOWN key to choose the language.
Reset parameters
Press UP/DOWN key to choose the reset.
Notice: The reset will not affect the calibrated parameters.
Record query
Press UP key at the measurement mode to enter record query mode.
Press UP/DOWN and SHIFT key to input record
number then press ENTER key enter or press
MODE key exit.

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Calibration
Press MODE key to enter the password menu and then press UP/DOWN/SHIFT key to
input password 1100 then press ENTER will enter to calibration 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.
Manu
Press UP/DOWN key to select the functions
and then press ENTER key to enter.
1. NTU calibration and working mode.
2. Sludge blanket calibration and working
mode.
3. Suspended solid calibration and working
mode.

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Turbidity calibration
Zero calibration
1. Put the electrode to the deionized water.
2. Waiting for the reading is stable and then
press ENTER to go to next or press MODE to
exit.
Slope calibration
1. Put the electrode to the standard buffer.
2. Waiting for the reading is stable and then
press ENTER to finish the calibration or
press MODE to exit.
Notice:
The calibrating value is fixed to 2000.0NTU
Turbidity working mode
1. Factory default, restore to the default
parameters.
2. User calibration, using the user calibration
parameters

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Sludge blanket calibration
1. Put the electrode to the 100% sludge
blanket.
2. Waiting for the reading is stable and then
press ENTER to finish the calibration or
press MODE to exit.
1. Factory default, restore to the default
Sludge blanket working mode
parameters.
2. User calibration, using the user calibration
parameters
Suspended solid calibration
Zero calibration
1. Put the electrode to the deionized water.
2. Waiting for the reading is stable and then
press ENTER to go to next or press MODE to
exit.

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Input slope standard buffer.
Slope calibration
1. Put the electrode to the standard buffer.
2. Waiting for the reading is stable and then
press ENTER to finish the calibration or
press MODE to exit.
Suspended solid working mode
1. Factory default, restore to the default
parameters.
2. User calibration, using the user calibration
parameters