WoMaster WS102-TDS Quick Installation Manual

Quick Installation Guide
Water Quality Analysis Total
Dissolved Solids Sensor
WS102-TDS
www.womaster.eu
・Overview
WS102-TDS is a smart water quality analysis Total Dissolved Solid
sensor, which can be used to detect and distinguish pure water,
mountain spring water, mineralized water, purified water, tap water,
sewage, etc.
At the same time built-in temperature detection, measuring range 0
~ 60 °C. The sensor supports analog 4-20mA and RS-485 (ModBus
RTU) for user application , and 2 types of thread for different
installation.
Model Name Description
Total Dissolved Solid Sensor, 0~1000ppm, TEMP.
MEASURING RANGE: 0~60 ° C, 5 METER CABLE,
WS102-
TDS-M-k1 RS485 MODBUS, 10-30V POWER, M39x1.5 Thread,
k=1
Total Dissolved Solid Sensor, 0~1000ppm, TEMP.
WS102-
MEASURING RANGE: 0~60 ° C, 5 METER CABLE,
TDS-N-k1
RS485 MODBUS, 10-30V POWER, NPT ¾ Thread, k=1
・Package Checklist
•
1 x Product Unit
•
1 x Quick Installation Guide
Optional Accessory (for detailed information please refer to the
Datasheet)
*Configure and use equipment, please refer to the document "How to
configure and use IoT sensors"
・Installation
Before Use （
Please read this instruction carefully before use）
1) The conductivity electrode needs to be dried before storage. Do
not store the electrode in distilled water or deionized water.
2) In the process of measurement, if there is dirt, adhesion or scaling
at the front end of the electrode, the measured value will be
inaccurate or fluctuated. It shall be cleaned and calibrated in time.
3) The contents described in the manual will change with the
continuous improvement of the product. The company will not
notice otherwise in the manual and will not bear the consequences
arising therefrom.
Wiring
1) Please follow the instructions carefully , the wrong wiring will
damage the product completely.
2) Please carefully check all the wiring in the system and confirm that
the wiring is complete right before switch on the power.
*Note: RS48SA line and RS48SB line are strictly forbidden to contact with
the power supply line, otherwise the communication of the electrode will
be permanently damaged.
Line Line
Description
Color Color
DC10-30V(Recommend
Brown White
12V)
Black
Blue DC0V(I-)
Gray 4~20mA(I+) Green
Wiring The RS485 Signals
1) Connect the cable to the device, connect the white wire to RS485-
A, and connect the black wire to RS485-B.
2) When wiring the RS485 cable, pay attention to A/B the two lines
cannot be reversed.
*Note: Make sure the addresses of multiple devices on the Modbus
setting do not conflict.
Wiring The Power Input
1) Connect the power cable to the device. Brown cable is the positive
pole of the power supply and blue cable is the negative pole of the
power supply.
2) Connect the power wires to suitable DC Switching type power
supply. The input range is 10-30VDC.
*Note: Gray wire should be protected when not in use to avoid
short circuit when touching the blue wire
Polarization Method
Connect the electrode with the transmitter, put the electrode into the
solution to be tested, connect the power supply, and start
polarization after power on.
Calibration
1) Generally, the instrument has been calibrated before leaving the
factory, and the user can put it into use directly.
2) In order to ensure the measurement accuracy of the
conductivity
recalibrated with the conductivity instrument before use. At the
same time, the conductivity electrode constant shall be calibrated
regularly. If there is a large error, the conductivity electrode shall
be replaced in time.
3) Users are recommended to calibrate the electrode every 1~2
months.
Calibrating instructions
1) Start calibration:
➢
Clean and dry the electrode and put it into the standard
solution;
➢
Send command: 01 03 00 02 C4 DB.
➢
Read the measured value and calculate the conductivity
constant after it is stable. Constant = standard solution value /
current measured value. For example, put the sensor into
1.413mS/cm standard solution and read that the current
measured value of the sensor is 1.450mS/cm, then the
constant = 1.413 / 1.450 = 0.97448. To write data to 0x0A
Description
register, 0.97448;
➢
Send command: 01 10 00 30 00 02 04 77 85 3F 79 2A F4.
485-A
➢
End of correction.
485-B
・Appearance
SHIELD
Unit：mm
WS102-TDS-M-k1
instrument, the electrode constant shall
25
WS102-TDS-N-k1
be
30.6