Yosemite Y505-A User manual

Aquaculture Optical Dissolved Oxygen Sensor
User Manual ( Version V1.2 )
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Yosemite Technologies Co. Ltd, 2015. All right reserved

Introduction
Thanks for choosing Yosemite Technologies’ instrument！
Please read this manual carefully before using this product, and keep this
manual in safe place for future reference.
Please follow the instructions and procedures stated in this manual.
To ensure after sales warranty coverage, please follow the user instructions and
maintenance procedures stated in this manual. Any damage and lost caused by
improper use of this product will not be covered by factory warranty. Please keep all
documents, and if you have any questions, please do not hesitate to contact
Yosemite Technologies’ customer services.
Remove the instrument from package material and examine it to make sure that
there is no damage occurred during shipment. If there is any damage, please
contact Yosemite Technologies Customer Service immediately. Save all materials
until you are sure that the instrument functions properly. Any damage or defective
items must be returned in their original packaging material.
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Y505-A Optical Dissolved Oxygen Sensor
Yosemitech Optical dissolved oxygen sensor measures
dissolved oxygen using the principle of oxygen dynamic
luminescence quenching technique. When blue light
excites sensor film, the sensing film emits red light. The
phase difference between the blue excitation and returned
red emission is measured, and the result is used to
calculate DO concentration.
Model Description
Model #
Aquaculture Optical Oxygen
Sensor
Y505-A
Online Controller
Y610-B
Ordering：
Accessory：
Model Description
Model #
Y505-A replacement Cap
Y9003
DO monitoring is the most critical water quality parameter in aquaculture.
Yosemitech ODO series aquaculture optical dissolved oxygen sensor is specially
designed for aquaculture applications. With embedded temperature sensor and
robust RS485 digital signal output, the sensor can be seamlessly connected to
Yosemitech’s online controller. The sensor can be easily integrated into wireless
sensor network and automation controls.
Features
Digital output, support RS485 / MODBUS
No membrane，No electrolyte, No chemical
interference, No frequent calibration required
No oxygen consumption, No flow dependent
Specially designed for aquaculture application
Principle of Operation：
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Y505-A 传感器结构图
Y505-A 溶解氧传感器结构图
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Y505-A Technical Specifications
Range
0-20mg/L or 0-200% Saturation
Response Time
40 Sec
Housing IP Rating
IP68
Accuracy
3%
Drift
<1% per year
Working Temperature Range
0 ~ 50℃
Temperature Accuracy
±0.5℃
Interface
Support RS-485， MODBUS protocols
Installation thread
M22*1.5 mm
Power Requirements
DC 6~12V +/-5%， current <50mA
Temperature Sensor Type
NTC
Sensor OD
23mm
Sensor Length
188.3 mm
Cable Length
10m standard; 5m, 15m, and 30m optional
Calibrations
Support one point and two-points calibrations
Sensor Cap Lifetime
1 Year（at normal use）
Body materials
POM and Stainless steel
* PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE
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Y505-A Maintenance
1.Maintenance Schedule
Unlike traditional electrical chemical sensors, optical DO sensors require low maintenance.
There are no need for frequent solution filling and calibrations.
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Maintenance task
Frequency
Sensor cleaning
Every 30 days
Sensor and sensor cap inspection
Every 30 days
Sensor cap replacement
Every one year
Calibration（if required of agency）
Calibration based on required schedule
Note：above schedule is only for reference, customers should make on their own judgment
based on their applications. Yosemite Technologies’ sensor cap may be used longer than
one year, we recommend to replace the sensor cap per year to ensure performance.
2.Routine Maintenance
DO Probe:
•Inspect all sensor connectors for corrosion and replace sensors if necessary.
•Inspect sensor o-rings and replace if necessary
•After prolonged storage, calibration of the sensor is required.
•After use, rinse the sensor body with tap water, dry it, and put on storage cap. Keep DO
sensor storage cap wet to moisturize DO membrane surface.
•DO NOT DRYOUT DO SENSOR CAP!
•Inspect the sensor for scratches or cracks, if any are present , replacement of sensor cap
may be needed.
Cable:
Cable’s minimum bending radius is 15mm. The wires inside the cable may break if it is under
long term stressed condition.
3.Sensor Cap care and Storage
Sensor cap storage：if the senor do not in use, store the sensor in its storage cup. Store the
sensor cap in water saturated air. If sensor cap has been dried out, please submerge the
sensor cap in warm (about 40 -50⁰C) water for 48 hours。
Do not expose sensor cap under direct sunlight, keep surface clean, dirty or scratch will
cause inaccurate reading.
If DO membrane surface is dirty, try to rinse the surface with tap water first. If necessary,
please gently wipe the surface with lens cleaning tissues that has been moistened with clean
water. Do not use organic solvents to clean the sensor cap.

Y505-A Cable
1、DO Sensor Dimensions
23x188.3 mm(Φ xL)
2、Power Supply Requirements
Power Supply DC 6~12V +/-5%, Current <50mA 3、
Sensor Cable
4 wire AWG-24 or AWG-26 shielding wire. OD=5mm
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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Common Trouble Shootings
Error
Possible Cause
Solution
No data displayed on controller (if
sensors are connected)
Connection issue
Reconnect sensor to controller
Cable failure
Contact customer service
Bad sensor cap or loose sensor
cap
Reinstall sensor cap or replace
Unstable DO reading
Dirty sensor cap
Clean sensor cap
Damaged sensor cap
Replace sensor cap
Sensor cap expired
Bad Temperature reading
Bad connection
Reconnect sensor to controller
Dirty temperature sensor
Clean sensor
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Warranty
Yosemite Technologies online dissolved oxygen sensor and controller are warranted for one
(1) year from date of purchase against any material and manufacturing workmanship.
Within the warranty period, Yosemite Technologies Environmental Technologies will repair
or replace, free of charge, any product that Yosemite Technologies determines to be
covered by warranty.
Limitation of Warranty
This limited warranty does not cover any damage, deterioration or malfunction resulting from
any alternation, modification, improper or unreasonable use or maintenance, misuse, abuse,
accident, neglect, exposure to fire, improper packing and shipping, lightning, power surges,
or other acts of nature. This limited warranty does not cover any damage, deterioration or
malfunction resulting from any unauthorized tampering with this product, any repairs
attempted by anyone unauthorized by Yosemite Technologies.
This limited warranty does not cover cost of shipping the product back to Yosemite
Technologies, or any travel cost related the repair work.
Only the original purchaser of this product is covered under this limited warranty. This
limited warranty is not transferable to subsequent purchasers or owners of this product.
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苏州禹山传感科技有限公司
YOSEMITE TECHNOLOGIES CO.,LTD
Mailing address:
Bldg. NW-06, Ste 502, 99 JinJi Lake Ave, Suzhou Industrial Park, China .
Zip code: 215123
Tel: [phone] Fax：+86-
512-87663911
E-mail：[e-mail] www.yosemitech.com