BOQU BQ-OIW User manual

BQ610-B Online Controller Operation manual
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BQ-OIW
Online Oil in water Sensor
User Manual
SHANGHAI BOQU INSTRUMENT CO.,LTD

BQ610-B Online Controller Operation manual
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Contents
Preface ........................................................................................................................... 3
Overview ........................................................................................................................4
Features ...................................................................................................................4
Introduction ....................................................................................................................4
Wire Definition .......................................................................................................6
Technical Specifications .........................................................................................6
Installation ..................................................................................................................... 7
Part List .................................................................................................................. 7
Sensor Installation .................................................................................................. 7
Calibration ..................................................................................................................... 8
Labware and materials required ............................................................................. 8
Maintenance ...................................................................................................................9
Maintenance Schedule ............................................................................................9
Maintenance ........................................................................................................... 9
Trouble Shooting ......................................................................................................... 10
Quality Assurance ........................................................................................................11

BQ610-B Online Controller Operation manual
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Preface
Dear customer
Thank you for purchasing sensor from BOQU Instrument. It is strongly recommended to read the
entire manual before use in order to operate and maintain the instrument and avoid unnecessary
faults.
Please observe the operating procedures and precautions in this manual.
To make sure the effective after-sales protection provided by the instrument, please do not use any
operation or maintenance other than which mentioned in the manual.
Due to non-compliance with the precautions specified in this manual, any fault and loss caused
shall not be covered by the warranty, and the manufacturer shall not bear any relevant
responsibility. If you have any questions, please contact our after-sales service department or
representative.
If any parts or materials are damaged or lost, please contact our customer service department or
authorized dealer immediately.
Save all packing materials until you are sure that the instrument functions properly. Any damaged
or defective items must be returned in their original packaging materials.

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Overview
BOQU Instrument online OIW sensor is based measurement principle of ultraviolet
fluorescence method. Compared with other methods, the fluorescence method is proven to be
more efficient, fast and repeatable. It is widely used in environmental monitoring, analytical
chemistry, limnological and oceanographic biology.
The sensor has an integrated cleaning brush, which can automatic clean up air bubbles, debris,
and biofilm, therefore reduce the interference of contamination on measurement data, make the
maintenance period longer, and maintain excellent stability for long-term online use.
Typical applications include: crude and refined oil detection, leakage control at offshore oil
pipelines, monitoring of BTXE and polycyclic aromatic compound in fresh water, industrial and
municipal sewage works.
Features
RS - 485 output, Modbus protocol compatible
Integrated automatic cleaning brush, eliminating measurement interference
Use of unique optical and electronic optical filtering technique eliminates the impact of ambient
light on the measurement
UVC LED light source with low power consumption, high stability, low drift and long lifetime
No affection by particulate matter suspended in water
Introduction

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BQ610-B Online Controller Operation manual
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Wire Definition
4 AWG-24 wires or AWG-26 shielding wire. OD=5mm
Technical Specifications
The specifications are tested in lab condition using reference standards
Name
Parameter
Item
BQ-OIW
principle
Ultraviolet fluorescence
The laser wavelength
254nm
Fluorescence wavelength
360nm
Range
5ppm（NDSA）equiv. to 1.1ppm（BTEX）
Resolution
0.01ppb
MDL
5ppb (NDSA)，1ppb (BTEX)
Linearity
R²＞0.999
Housing IP Rating
IP68
Depth Rating
30m Max
Temperature Range
0 ~ 50℃
Interface
Support RS-485，Modbus protocols
Power Requirements
DC 12~24V ±5%，current <50mA
Cable Length
10m (default), custom length available
Body materials
SS316 (Ti)
Calibration
One point at zero or two point calibration
1, Red—Power (VCC)
2, White—485 Date_B ( 485_B)
3, Green ---485 Date_A (485_A)
4, Black --- Ground (GND)
5, Bare wire ---- shield

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Installation
Part List
Item
Number
Note
OIW Sensor
1
Cable
1
10m
Brush
1
Assembly adapter
1
Sensor Installation
1) Wiring and power supply:
•Do not use the sensor cable to pull the sensor! It is required to install sensor in a
secure and stable mounting bracket.
•The female and male connector of sensor cable should be screwed tightly to avoid
moisture incursion
•Important: Make sure power supply voltage is correct before turning the power
on.
Sensor installation:
•It is recommended to install the sensor vertically with probe facing down.
•Considering the basic principle of sensor optics, the distance between the end
face of the sensor optical window and the bottom of the container/device should
be more than 10cm!
•In consideration of the fluctuation of water level, install the sensor below water
level of 30cm to submerge, and try to install it in the position where there are no
bubbles in the water;
•The sensor must be securely installed to avoid damage caused by water flow and
other things.

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Calibration
PC tool name: SmartPC(DO).exe.
Note: If need any help, please contact Customer Service.
Calibration Solution Preparation
Labware and materials required
Analytical balance, Lab spoon, 50mL beaker, 100mL measuring cylinder, glass rod,
Pipette 1L volumetric flask, 1L brown flask
NDSA (1, 5-Naphthalene disulfonic acid disodium salt dihydrate), CAS: 76758-30-0
Stock Solution Preparation
Wise 0.1g NDSA, dissolve it in deionized water, transfer it to volumetric flask, constant volume to
1L, and get 100ppm NDSA stock solution.
Different concentrations of standard solution preparation
Dilute 100ppm NDSA stock solution according to the required concentration. For example, take
50mL 100ppm NDSA stock solution and volume it with deionized water to 1L, then get 5ppm
NDSA standard solution.
Note:
•Please operate carefully in the process of configuring standard liquid, and wear
gloves;
•The test should be carried out in a brown light-proof bottle;
•In the calibration process, please use deionized water to clean the sensor and dry
it to avoid contaminating the standard solution.

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Maintenance
Maintenance Schedule
The cleanliness of the measuring window is very important to maintain accurate readings.
It is recommended to clean the sensor light Windows and dry them with a clean cloth before
testing.
Maintenance task
Frequency
Sensor cleaning
Every 30 days
Calibration
Every 3-4 weeks
Replace brush
Every 3 months
Maintenance
1) Clean the sensor surface：Wash the outer surface of sensor with tap water, if there is
still residue, using soft brush, for some stubborn dirt, household detergent can be
added in tap water to clean.
2) Window surface: clean the outer surface of the sensor with tap water. For some
stubborn dirt, traditional detergent and soft cloth can be used to clean it. It is
forbidden to scrape the window surface with hard objects.
3) Check the cable：inspect the sensor cable if there is damage.
4) Check whether the sensor shell is damaged due to corrosion or other reasons.
5) Check whether the sensor's cleaning brush is damaged, excessive wear leads to less than
the light window and other abnormalities.
Attention
The sensor contains sensitive optical and electronic components.
Make sure the sensor is not subjected to severe mechanical impact.
There are no components inside the sensor that require user maintenance.

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Trouble Shooting
Table 5-1 lists the symptoms, possible causes, and recommended solutions for
common problems encountered with the OIW sensor. If your symptom is not listed, or
if none of the solutions solves your problem, please contact us.
Table 5-1
ERROR
POSSIBLE CAUSE
SOLUTION
Communication
abnormal
Power supply or wiring
issues
Check whether the power supply and wiring are correct
according to the instruction
Interface or protocol
issues
1. Use our SmartPC upper computer software to check
whether the communication is normal
2. Check according to the supporting communication protocol
of the product
No change in
reading
Cleaning brush failure
1. Check whether the brush is entangled by foreign matter, if
so, please remove the foreign matter;
2. Turn on the power again and observe whether the brush
rotates. If it cannot rotate or rotates abnormally, please contact
customer service
Check whether the power supply meets the requirements, to
avoid the low power supply can not drive the brush rotation
Hardware or software
issues
Contact customer service
Measured value
is too high, too
Low or
instability
Sensor’s window is
dirty and worn
Clean sensor body, special light window table
Sensor’s brush is worn
Change brush
Calibration is required
Perform user calibration
Other errors
Contact customer service

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Quality Assurance
Warranty period:
Sensor warranty period is 1 year
Electrode warranty period is 4 months (Non-chemical environment, Non
industrial wastewater).
If there are defects found during the warranty period, Promises to repair or replace the
defective products, or return the payment of product except the charge for the first
time for transport and related formalities. In the warranty period, repair or
replacement of any product will only enjoy the rest of the original warranty.
After receiving feedback for the product quality problems from the customer, We will
confirm whether the product need repair within two weeks; It can’t be returned
without approval to repair the product.
This warranty does not include the following：
•Damage caused due to force majeure, natural disasters, social unrest, war
(published or unpublished), terrorism, civil war or any government forced.
•Damage caused due to improper use, negligence, accident, or caused by the
improper application and installation.
•Freight of products shipped back to our company.
•Freight for parts or products express or express delivery within the warranty.
•Travel expense for repair in local in warranty
The quality assurance includes all content of products provided by our company.
It is the final, complete and unique statement of quality assurance, and no person or
agent has the right to develop other warranties in the name of our company.
As mentioned above, remedies such as repair, replacement or refund of product
payment do not violate the warranty and are only for our own products. According to
strict liability or other legal theories, our company is not responsible for defects or
any other damage caused by careless operation, including subsequent damage with
causal relationship between these situations.