BOQU SD Series User manual

SD Series Online Color Meter
OPERATING INSTRUCTIONS
Content
1. Introduction…………………………………………………… 1
2. Product name and model description……………………… 1
3. Technical parameters……………………………………… 2
4. Measuring principle………………………………………… 3
5. Structural features…………………………………………… 3
6. Installation wiring…………………………………………… 3
7. Panel operating instructions………………………………… 5
8. Routine maintenance……………………………………… 12
9. Matters needing attention…………………………….. …. 13

Operating instructions for SD Series Online Color Meter
1
1. Introduction
Dear users：
Thank you for choosing the SD Series Online Color Meter
developed by our company ，To ensure correct and efficient use of
the instrument, please read this manual thoroughly and fully
understand how to operate the instrument before operating it。
SD Series Pipeline Online Color Meter，Pipeline type totally
enclosed detection to Avoid external light interference，Reliable
and accurate measurement，Can be widely used in Chromaticity
monitoring of sewage enterprises ；Municipal pipe network
monitoring ；Industrial process chroma monitoring ，Effluent
monitoring of printing and dyeing plant，Chemical effluent, etc。
1. Product name and model description
Product name：Online Color Meter
Model：SD Series
2. Technical parameters
Range：SD-500 0.1-500.0PCU
Resolving power：0.1 与1PCU
Response time：Quick response

Operating instructions for SD Series Online Color Meter
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Storage time：>3 years
Recording interval: 0-30 Minutes can be setup,Default 10
minutes
Display mode：LCD and Key
Cleaning method: Manual cleaning（Cleaning method and
Matters needing attention ，Please refer to the following
chapter）
Sample flow rate：0mL～3000mL/min，Ensure that the flow
rate is no bubbles
Working temperature：0～55℃
Analog output：4～20mA output（Four wire system ,No need
to provide 24V）
Relay output：Four SPDT，230VAC，5A；
Fault alarm: two Acousto-optic alarm, Display prompt,
Alarm value and time can be set
Power Supply：AC,100～230V,50/60Hz or 24VDC ；power
50W
Inflow pipeline：1/4" NPT，（Provide external interface）
Outflow pipeline：1/4" NPT，（Provide external interface）
Digital communication：MODBUS/RS485, Communication
speed and station address can be setup
Standard method：National standard
Size：40×33×10cm
Weight: 3Kg

Operating instructions for SD Series Online Color Meter
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3. Measuring principle
This module monitors by Constant incident light Irradiated
on liquid surface，The receiving chip will dynamically measure
the chroma of water 。If the water is turbid, it may affect the
measurement accuracy ，It is recommended to filter and clean
before entering water。
4. Structural features
Outline structure and installation instructions of Online Color Meter，
As shown in the figure below。
Careful：
1. Outflow valve flow control to minimum， It must be
less than the inflow flow ，Let the measuring tube
have a certain air pressure，Otherwise, there will be
bubbles，Influence measurement value
2. Panels should be installed vertically

Operating instructions for SD Series Online Color Meter
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5. Installation wiring
6．1．Instrument installation
The instrument shall be installed in a clean, dry, well
ventilated place without vibration。
1．There are 4 studs on the bottom plate for installation。
2．Interface between measurement and water sample
collection 1/4" NPT Internal thread ，You can also choose card
sleeve installation.。
Influent mode： Down in and up out， Keep the inflow
valve as small as possible，The best way is that water
does not produce bubbles。
6. 2. Connection mode
L: 220AC
N：220AC
PE: Earthing
V+，V-：DC 24V input
A，B，P+，P-：Communication wiring with front end（A：
Green wire， B： Black wire， P+： Red wire， P-： Yellow wire）
I+：4-20mA+ output（Four wire system current positive, No
need to provide 24V）
I-：4-20mA- （Four wire system current negative, No need
to provide 24V）
DO1，com1：Alarm1 relay action
DO2，com2：Alarm2 relay action
DO3，com3：unuse

Operating instructions for SD Series Online Color Meter
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DO4，com4：unuse
DI1-DI4：unuse
485A，485B：MODBUS communication interface
6. Panel operating instructions
6.1. Instrument panel and operating instructions
1．Real time display of current chroma value；
2．Alarm light display；
3．Real time clock display；
4．Run LED is normal operation；
5．Alarm1 Led is low alarm；
6．Alarm2 led is high alarm；
Operation panel description
1．▲Indicates move up or value increase key（Up key）

Operating instructions for SD Series Online Color Meter
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2．▼ Indicates move down or value decrease key（Down key）
3．◄ Indicates move Left（Left key）
4．► Indicates move Right（Right key）
5. ENTER: Acknowledgement key
6．ESC: Return or exit key（Go back to the previous menu）
6.2. Menu
7.3.Main interface and main menu

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Chroma value is mainly displayed in the main interface，If
chroma value greater than set value, The alarm led red light up.
When the view is displayed as the main view， Press the ESC
key，Can get into Function menu page。As shown in the figure
below：
Press up key or down key to move options，Press ENTER key
to enter the corresponding option。
7.4. Alarm settings
Alarm setting view is mainly used to set the alarm value
and alarm time of chroma alarm 1 and alarm 2。
careful：If you do not press enter after setting，Set
value not saved。

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7.5. System setup
In this view, you can select the address of Modbus
communication station（1-32），communication rate and language。
The system defaults station is no 1，Communication baud rate is
9600Bps，Language is Chinese。
Communication data format：One start bit, eight data bits, one
check bit and one stop bit。
Verification method: CRC check.
Broadcast information is not supported。
Upload data mode，Implement with 03 command，It can transmit
the switching value (in word form) and analog value in the
Numerical controller，The specific process is as follows。
For example ：Read the analog down transfer register with the
starting address of 0000H, with the length of 09 words
03 Command request message：
address
function
Data start
Data
Data
Data
CRC
CRC

Operating instructions for SD Series Online Color Meter
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register
high
start
registe
r low
length
high
length low
check
code low
check
code high
02
03
00
00
00
09
03 Command response message：
Communication data address definition
address
Data name
Data definition
type
Explai
n
Remarks
000.0
Data name
000.1
003.3
Alarm 1
1 Alarm
bool
003.4
Alarm 2
2 Alarm
bool
0006
Chroma
value
0-1000 对应 0-100.0
int
0007
7.6.Clock setting
address
function
Bytes
High bit of data output register0014
Low bit of data output register0014
High bit of data output register……
Data output register low ……
High bit of data output register0027
Data output register low 0027
CRC check code low
CRC check code high
02
03
28
01
2B
00
00
00
64

Operating instructions for SD Series Online Color Meter
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Adjust and set the system time displayed on the current main
view，Year, month, day, hour, minute and second can be set。
7.7. Instrument calibration
When the deviation of the detected value is large, the instrument
can be corrected
Zero adjustment
1. In circulation，Connect clean water for zero adjustment
2. Enter the instrument calibration screen ，Press on the
operation panel ，When the cursor flashes at "zero
adjustment"，Press the "OK" key in the middle of the operation
panel to adjust zero，If the operation is unsuccessful, repeat the
operation。
Sample adjustment
Close the water inlet valve before sample adjustment and
correction，Pull out the water inlet quick connect hose，Short the

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water inlet and outlet with quick connect hose。As shown in the
figure below:
1. Open the cleaning port ，Pour in the full-scale standard
sample solution provided by the manufacturer when leaving the
factory，Close the cleaning cover。
2. Enter the instrument calibration screen ，Press on the
operation panel ，When the cursor flashes at "sample
adjustment"，Press the "OK" key in the middle of the operation
panel to sample adjust ，If the operation is unsuccessful, repeat
the operation。
During zero adjustment or sample adjustment ，It is
recommended to pour clean water or sample solution for many
times ，Reduce the influence of residual liquid on correction
results。
After the above operations are completed, connect the
inlet and outlet pipes according to the normal installation and
Range：Maximum range setting。
Set 0: Zero adjustment,After pouring in water, Tighten the

Operating instructions for SD Series Online Color Meter
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cleaning port, After stabilizing for 8-10 minutes, conduct zero
adjustment and calibration。
+/- 0 PCU：Up/Down Offset value
SetSamp ：Adjusting sample ，After pouring standard sample
solution ，Tighten the cleaning port ，After stabilizing for 8-10
minutes, conduct sample adjustment and calibration。
7. Routine maintenance
Generally, the instrument has been calibrated before leaving
the factory, and the user can put it into use directly。
Maintain：The following operations must be carried out in
case of power failure。
1、Check whether the wiring is correct when using the
instrument for the first time。
2、If you found that the measurement error is too large or the
measurement value keeps rising and will not return to the original
value when it is used for a long time，Please turn off the water
inflow ，Unscrewing the cleaning port，Please Manual cleaning。
3、Do not remove the instrument，In order to avoid affecting
or damaging the performance of the instrument, keep the
instrument dry and tidy。
Manual cleaning method：
Step 1：Turn off Power off, close the water inflow valve。

Operating instructions for SD Series Online Color Meter
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Step 2：Open the upper cleaning seal cover，Carefully clean
the inner wall of the measuring glass tube with a brush（Pay
attention not to overflow the water from the cleaning port,
which will cause the water to seep into the circuit board of the
measuring tank）。
Step 3 ：Repeat the second step repeatedly until the colored
substance adhering to the inner wall of the glass tube is
removed。
Step 4：Cover the measuring box, clean the sealing cover, and
power on。
8. Matters needing attention
The first start-up of the system takes 10 minutes to warm up 。
Incoming line voltage must be within the allowable range，Wiring
of incoming terminal must be firm and reliable
It is strictly prohibited to use in places with explosion,
flammability, corrosion of metal, damage of insulation and steam。
Maintain the original assembly mode of water inflow and water
outflow. The internal measurement is precision glass tube. Do not
use too much force when changing the installation, which will
cause the glass tube to break.
This test method is a national standard platinum cobalt
colorimetry, which can not necessarily meet the needs of on-site
chroma. It is suggested that the darkest color solution on site can
be used as the standard solution for sample mixing according to

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the actual situation.
There are bubbles on the inner wall of the measuring tank, which
will cause the measurement value to be wrong or rise continuously.
It is suggested to increase the water inflow and reduce the water
outflow so as to generate pressure in the measuring pipe and make
the bubble burst。
Due to different manufacturers and different components of
sewage, colored substances adhere to the inner wall of the
measuring pipe, and the cleaning interval and frequency depend
on the specific situation of the site。
Keep the ventilation and dry environment, condensation will
occur in the humid environment, and the adhesion to the outer
wall of the measuring tank will cause the measurement value to
increase。
Do not disassemble the right measuring tank without the technical
support of the manufacturer。