Optex Water It TC-3000-DI User manual

Thank you very much for purchasing Turbidity Checker TC-3000-D/
TC-3000SP-D.
All of this instruction manual must be read before operation of this
Turbidity Checker for safe and proper operation.
This instruction manual should be kept for future reference such as
maintenance.
Turbidity Checker
TC-3000-D/
TC-3000SP-D
Instruction
Manual
WATER it
The instruction manual is also available on the following website.
https://navi.optex.net/manual/05327/?lang=en

2
The Contents of Packaging
Sensor: 1 Lifting lug: 1
Hanging attachment: 1 Cable protective cover: 1
Cable tying band: 5 Instruction manual
(this document)
If there are any missing or faulty items, please contact our sales
representative.
Reference
Can be connected to SC-U1.

3
Table of Contents
1 For Safe Use........................................................................... 5
2 Component Name.................................................................. 7
3 Installation.............................................................................. 8
Sensor installation................................................................. 8
Extension of sensor cable................................................... 11
4 Wiring ................................................................................... 12
5 Sensor Setting ..................................................................... 13
Display item (unit selection)................................................ 13
Response time.................................................................... 14
6 4-20 mA Setting ................................................................... 15
Output item selection .......................................................... 15
Upper/lower limit of signal output range.............................. 16
7 Relay Setting........................................................................ 17
Alarm output setting............................................................ 17
Maintenance output setting................................................. 18
Self Checking output setting ............................................... 18
8 Calibration............................................................................ 19
Zero calibration ................................................................... 19
9 Adjustment........................................................................... 22
Offset adjustment................................................................ 22
Span adjustment................................................................. 23
2-point adjustment .............................................................. 25
Adjustment initialization ...................................................... 27
10 Maintenance Setting............................................................ 28
Measurement value hold..................................................... 28
Hold timer............................................................................ 28
Maintenance timer .............................................................. 29

4
11 Cleaning ............................................................................... 30
Manual cleaning.................................................................. 30
Cleaning interval ................................................................. 30
12 Troubleshooting .................................................................. 31
Error code list...................................................................... 31
13 Maintenance......................................................................... 33
Maintenance (monthly) ....................................................... 33
Periodic inspection (every 3 months).................................. 33
Replacement of consumables............................................. 33
Calibration........................................................................... 34
Long-term storage............................................................... 34
Overhaul ............................................................................. 34
14 Specifications ...................................................................... 34
15 External Dimensions........................................................... 35

5
Be sure to read this instruction manual in order to
use this Turbidity Checker properly.
●Please thoroughly read "For Safe Use" before using this Turbidity
Checker properly.
●Because these precautions are related to failure or malfunction, observe
the precautions for use without fail.
Do not use TC-3000-D/TC-3000SP-D except for measurement of
water quality.
" " denotes "Prohibited action", and " " denotes "Required action" .
In the unlikely event of
occurrence of abnormalities
such as smoke or abnormal
noise, immediately turn off
the power.
Do not disassemble or
modify the sensor.
Handle with care not to
damage.
Use the sensor with
24 VDC.
24 VDC
1 For Safe Use

6
To clean the sensor, first
wipe away lightly with a clean
soft cloth damped by diluted
mild detergent solution and
then wipe off moisture with
a dry clean soft cloth.
Do not wipe the sensor with
solvent such as Thinner.
It may cause failure.
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Avoid strong physical
shock to the sensor or do
not drop it.
Do not apply oil such as
grease to the sensor.

7
2 Component Name
Detection
windows
Sensor cable
Wiper blade
Caution
・Do not carry the sensor with the sensor cable.
・Do not touch the detection window. Clean the detection window
if your hand touches it.

8
3 Installation
Before installation, turn off the power switch of SC-U1 or
disconnect the power cable from the supply source and wire
the power cable after the installation is complete.
" " denotes "Prohibited action", and " " denotes "Required action" .
Suspend the sensor so as
not to impinge upon a wall
or facility equipment due
to water flow. In the case
of higher water flow, fix the
sensor.
With fluctuation of water
level taken into account,
dispose the sensor so as
to be immersed up to of the
order of 30 cm below the
expected lowest water level.
30 cm
L.W.
Install the sensor max. 2 m
below the surface of the
water.
Dispose the sensor in
water without air bubbles.
Max. 2 m
Sensor installation

9
Suspend the sensor so that
it is not hung vertically.
Reference
An optional mounting attachment (TA-1,
TA-1SP) is prepared for users who use
the sensor at a place at high water flow.
This attachment serves to prevent a
sensor from impinging upon a side wall or
turning around.
For details, contact your dealer or visit
our website:
https://www.optex.co.jp/e/products/
environmental-sensor/
・Read the precautions in the “TA-1 instruction manual” carefully.
・Attach the cable protective cover without fail. Otherwise, there is a
possibility that a cable is scratched during maintenance operation and
water intrudes.
・Do not hang a sensor with the sensor cable.
・Do not cover over measuring surface by the hanging attachment.
・When installing TC-3000SP-D, keep the metal part of the sensor away
from the surrounding metal.
Use attachment TA-1SP when using the product where water flows fast.
Using attachment TA-1 may accelerate corrosion.

10
Wrap the cable protective cover on the sensor side of the
sensor cable.
Hang the sensor by a chain wire with an attached lifting lug.
1
2
Holes for inserting
the lifting lug
Run the lifting lug
through the end of
the chain.
Open up the ends of the lifting
lug and inser
t into holes of the
hanging attachment.
Reference
The chain kit (TA-2: for TC-3000-D only) is optionally available.
For details, please contact the dealer or visit our website:
https://www.optex.co.jp/e/products/environmental-sensor/

11
Put the cable protective cover up to the root of the sensor
cable and secure it to the chain or other device with a cable
tying band.
3
Use a cable tying band to secure.
Cover the cable protective
cover over the end of the
sensor cable.
Caution
・An opening having the detection window faces immediately
lateral when hanging the sensor.
・If the sensor inclines at the time of hanging, make horizontal
adjustments by changing a point where the cable is fastened
on the chain wire.
Extension of sensor cable
The standard length of the sensor cable is 9 m. To extend the cable, refer to
the following.
To extend the cable, connection using pull box is recommended.
The cable clamp fits the cable sheath diameter of 6 to 8 mm.
Max. cable length X
Pull box, etc.
Nominal
sectional area Max. cable length X
0.3 mm220 m
0.5 mm240 m
0.75 mm270 m
1.0 mm2100 m

12
4 Wiring
Before wiring, turn off the power switch of SC-U1 or
disconnect the power cable from the supply source and wire
the power cable after all the other wiring is complete.
Connect the sensor to SC-U1.
・The cable clamp fits the cable diameter
of 6 to 8 mm.
・The sensor cable must be shielded
(CVV-S) with a nominal cross-sectional
area of 0.2 to 1.25 mm2.
・Refer to “Extension of sensor cable”
P.11 for extension of the sensor cable.
To extend the sensor cable, connection
using pull box is recommended.
・Wire the terminal block according to the
color of the tip of each wire.
Use this product by connecting to Universal Transmitter SC-U1.
For installation and wiring to SC-U1, refer to the "Universal Transmitter
SC-U1 Installation Manual".
1
Sensor
Sensor
Power
Supply
Signal
input
(RS485)
(Blue) (Brown)(Black)
(White)
Shielded wire Power supply + Power supply - RS485 A RS485 B

Sensor Setting
13
5 Sensor Setting
The following settings are available from SC-U1.
To start sensor setting, press .
Set the unit of turbidity to show on the SC-U1 display.
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Main display
Select an item from the following.
Display item (unit selection)
For operation, refer to the "Universal Transmitter SC-U1 Operation
Manual", "5.1 Sensor Setting" and " ◆Display Item".
Caution
Pressing automatically retains the measurement value.
Caution
When the display item is changed, the settings of “6 4-20 mA
Setting” P.15 and “7 Relay Setting” P.17 that have set the
display item become OFF.
In addition, the values of “9 Adjustment”, “Span adjustment”
P.23, and “2-point adjustment” P.25 are reset to the factory
default values.
Set again if necessary.

Sensor Setting
14
Response time
Set a signal output response time.
A measurement value is calculated using moving average of the time period
set by the signal output response time.
For example, if the sensor measures values every 5 seconds and the signal
output response time is set to 50 seconds, which is 5 seconds ×10 times,
the moving average of 10 times measurement is calculated and used as the
measurement value.
Setting range Factory default
setting
Response
Time
5 to 600 seconds (by 5 seconds) 5 seconds
For operation, refer to the "Universal Transmitter SC-U1 Operation
Manual", "5.1 Sensor Setting" and " ◆Response Time".
* 度: Unit is used only in Japan.
The following display resolutions are available.
・0.0 - 99.9: 0.1
・100 - 499: 1
・500 - 3000: 5
Caution
The calibration curve for this product is made with formazin
standard solution.
Measurement item Display item Factory default
setting
Item Unit
Main
display
Turbidity Turb. FTU Turb. FTU
Turb. 度*
Turb. No unit
The recommended value for this product is 30 seconds or longer.
If the response is too fast with the factory default setting (5 seconds),
change the signal output response time as needed.

4-20 mA Setting
15
Set the 4-20 mA signal output setting from SC-U1.
The factory default setting is OFF for 4-20 mA signal output.
To set 4-20 mA output setting, press .
6 4-20 mA Setting
Select an item to output by 4-20 mA signal.
Output item selection
Output item
[Display]
Turbidity
[Turb.]
For operation, refer to the "Universal Transmitter SC-U1 Operation
Manual", "5.3 4-20 mA Setting" and " ◆Output Item Select".
Caution
Pressing automatically retains the measurement value.
Caution
When “Display item (unit selection)” P.13 is changed, the
output item of the channel of 4-20 mA setting that has set the
display item becomes OFF.
Set again if necessary.

4-20 mA Setting
16
For the item by 4-20 mA signal output, set the measurement value to output
at lower limit (Lo, 4 mA) and upper limit (Hi, 20 mA).
20 mA
Signal output
4 mA
Measurement
value at 4 mA
Measurement
value at 20 mA
Upper/lower limit of signal output range
Output
item
[Display]
Factory default
setting
Signal output range
Lower limit to Upper
limit
Minimum setting range
Upper limit - Lower
limit ≥
Turbidity
[Turb.]
Lower limit: 0.0
Upper limit: 3000
0.0 to 3000 20.0
The setting unit is based on the display resolution of the item set for the
display item. (For display resolution, refer to “14 Specifications” P.34)
For operation, refer to the "Universal Transmitter SC-U1 Operation
Manual", "5.3 4-20 mA Setting", " ◆Signal output range lower limit"
and " ◆Signal output range upper limit".

Relay Setting
17
7 Relay Setting
Set the relay output setting from SC-U1.
The factory default setting is OFF for relay output.
To set the relay setting, press .
Set the alarm to be output when the measurement value exceeds a certain
value.
The following settings are available.
Alarm output setting
Setting item Setting range
Turbidity [Turb.]
Trigger High Alarm/Low Alarm
Active Level 0.0 to 3000
Hysteresis High Alarm: 0.0 to Active level
Low Alarm: 0.0 to (3000 - Active level)
ON Delay OFF
1 to 120 minutes
OFF Delay OFF
1 to 120 minutes
The setting unit for the active level is based on the display resolution of the item
set for the display item. (For display resolution, refer to “14 Specifications” P.34)
For operation, refer to the "Universal Transmitter SC-U1 Operation
Manual", "5.4 Relay Setting" and " ◆Alarm output setting".
Caution
Pressing automatically retains the measurement value.
Caution
When “Display item (unit selection)” P.13 is changed, the
output item of the channel of relay setting that has set the display
item becomes OFF.
Set again if necessary.

Relay Setting
18
Maintenance output setting
Set an output when a malfunction such as sensor failure or disconnection
occurs.
For operation, refer to the "Universal Transmitter SC-U1 Operation
Manual", "5.4 Relay Setting" and " ◆Self Checking output setting".
Set a maintenance timer for any cycle (“Maintenance timer” P.29) to notify
the user when the set period has elapsed.
Use this for notification of sensor maintenance, replacement of
consumables, and overhaul timing.
Check notifications by the relay output and dedicated cloud server (SC-U1
and GW connected).
For more information about checking notifications on the cloud server, refer
to the cloud server’s help.
Self Checking output setting
For operation, refer to the "Universal Transmitter SC-U1 Operation
Manual", "5.4 Relay Setting" and " ◆Maintenance output setting".

Calibration
19
Perform calibration before using the sensor or after cleaning.
Distilled or deionized water is required.
To calibrate SC-U1, press .
Immerse the sensor in distilled water or ion-exchange water and adjust the
measurement value to the reference value (zero).
If bubbles are present, perform “Manual cleaning” P.30 to remove
bubbles.
The sensor selection display is displayed.
Press .
4
1Clean the sensor's main unit and detection window.
Caution
Pressing automatically retains the measurement value.
3Allow the sensor to acclimate to the water temperature for
about 5 minutes, and check that there are no bubbles in the
detection window.
Caution
If neither distilled water nor deionized water is available, tap
water without rust/turbidity can be used instead.
2Immerse the sensor in distilled
water or ion-exchange water.
8 Calibration
Zero calibration

Calibration
20
The calibration starts.
During calibration a processing
display is displayed.
When the calibration is complete, a
progress bar is displayed and then
the calibration result is displayed.
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TC-3000SP-D is also displayed as
[TC-3000-D].
The calibration menu is displayed.
Select [ZERO Cal.] using
, and press .
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Measurement
item
Sensor
model
Sensor channel
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Select a channel connected
to TC-3000-D using ,
and press .
5
6
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