Twinno 16540 Manuale utente
twin no 天15
16540 p。lar。graphic
On-line Diss。lved Oxygen Meter
Operating Manual
上海淳业仪表科技杳限公司 l
Content
Preface................................................................................................................................................. 1
Features............................................................................................................................................... 2
Technical Specifications.......................................................................................................................3
Instrument installation........................................................................................................................ 4
Keypad descriptions............................................................................................................................ 6
Display description.............................................................................................................................. 7
Menu Structure................................................................................................................................... 8
Calibration......................................................................................................................................... 11
Graphic Trend(Trend Chart)...............................................................................................................12
MODBUS RTU General Information..................................................................................................13
MODBUS RTU Transmission Mode................................................................................................... 14
MODBUS RTU CRC Check.................................................................................................................. 16
Implementation of MODBUS RTU in Instrument............................................................................. 16
Instrument MODBUS RTU function code..........................................................................................16
MODBUS function code 0x10: write multiple registers................................................................... 18
Data format in instrument................................................................................................................ 19
Read instruction mode......................................................................................................................22
Saturated Oxygen Meter in Water at Different Temperatures......................................................... 23
Daily maintenance.............................................................................................................................24
Frequently Asked Questions............................................................................................................. 25
Package Set........................................................................................................................................26
Warranty............................................................................................................................................27
Notes................................................................................................................................................. 28
1
Preface
Thank you for your support to us. Please read the instruction manual carefully before
use to help you use our products correctly.
When receiving the instrument, please carefully open the package, check whether
the instrument and accessories are damaged by transportation, whether the
accessories are complete, if abnormal, please contact our after-sales service
department or regional customer service center, and keep the packaging for return
processing.
Wiring or repair shall be done by a professional and operate only on instruments
with power-off. In the event of an instrument safety problem, power off the
instrument immediately to prevent any unintentional operation.
For example, it may be
Unsafe condition:
1) Significant damage to the instrument;
2) The instrument can not operate properly or provide specified measurements;
3) The instrument was stored in an environment with temperature exceeding 70℃
for a long time.
The instrument must be installed by a professional in accordance with relevant local
specifications, and the guidance instructions are included in the operating instruction
manual. Comply with the technical specification and input grade of the instrument.
2
Features
Industrial online dissolved oxygen meter is an online water quality monitor and
control instrument with microprocessor. The instrument is equipped with different
types of dissolved oxygen sensors. It is widely used in power plants, petrochemical
industry, metallurgical electronics, mining, paper industry, food and beverage
industry, environmental protection water treatment, aquaculture and other
industries. The dissolved oxygen value and temperature value of water solution are
continuously monitored and controlled.
●Color LCD display
●Intelligent menu operation
●Multiple automatic calibration function
●Differential signal measurement mode
●Three relay control switches
●High & low alarm and hysteresis control
●4-20mA & RS485,Multiple output modes
●Password protection function to prevent misoperation by non-staff.
3
Technical Specifications
Measurement range
0~40.00mg/L; 0~400.0%
Measurement unit
mg/L; %
Resolution
0.01mg/L; 0.1%
Basic error
±1%F.S
Temperature
-10~150℃
Temperature Resolution
0.1℃
Temperature Basic error
±0.3℃
Current Output
4~20mA,20~4mA,(load resistance<750Ω)
Communication output
RS485 MODBUS RTU
Relay control contacts
5A 240VAC,5A 28VDC or 120VAC
Power supply (optional)
85~265VAC,9~36VDC,power consumption≤3W
Working conditions
No strong magnetic field interference around except the
geomagnetic field.
Working temperature
-10~60℃
Relative humidity
≤90%
IP rate
IP65
Instrument Weight
1.5kg
Instrument Dimensions
235×185×120mm
Installation methods
Wall mounted
4
Instrument installation
Installation size
5
Connection between equipment and sensor: The power supply of relay, output signal,
alarm contact and connection between sensor and instrument are all inside the
instrument. Wiring is done according to Figure 3. The lead length of the cable fixed
by the electrode is generally 5-10 meters. Insert the line with corresponding label or
color on the sensor into the corresponding wiring terminal inside the instrument and
tighten it.
Wiring
Terminal
Function
Wiring Terminal
Function
SEN V+
Sensor Power+
NO 1
High set relay working position
SEN V-
Sensor Power-
COM 1
Alarm relay common
SEN A
Sensor Communication A
NC 1
High set relay resting position
SEN B
Sensor Communication B
NO 2
Low set relay working position
COM 2
Alarm relay common
N/C
NC 2
Low set relay resting position
Pow DC +(9-36V)
DC power +（9-36V）
Cure1+
Current output 1+
Pow DC-
DC power -
Com-
Current output common
Pow PE
Earth wire
Cure2+
Current output 2+
Pow ACL (85-265V)
Live wire
RS485 B
Communication Terminal
Pow AC N
Neutral wire
RS485 A
Communication Terminal
Pow PE
Earth wire
6
Keypad descriptions
Keypad operation tips:
Short Press: Short Press means to release the key immediately after pressing.
((Default to short presses if not indicated below)
Long Press: Long Press is to press the button for 3 seconds and then release it.
7
Display description
Before using should check all the pipe connection and electrical connection, after the
power supply, the instrument is shown as:
8
Menu Structure
The following is the menu structure of the instrument:
Configure
Sensor
Unit
Mg/L
%
Pressure compensation
101.3
Salinity compensation
0
Anaerobic oxygen
voltage compensation
0
Saturation oxygen
voltage compensation
20
Saturation oxygen
compensation
25
Temperature
Temperature Sensor
NTC2.252 kΩ
NTC10 kΩ
Pt100
Pt1000
Temperature Offset
0.0000
Temperature Input
Automatic
Manual
Temperature Unit
°C
°F
Calibration
Standard Solution
Calibration
Anaerobic calibration
Air Calibration
Calibrate correction
Offset Adjustment 一
Slope Adjustment 二
Field Calibration
Field Calibration
Offset Adjustment
Slope Adjustment
Alarm
Relay 1
Status
ON
OFF
High/Low Alarm
High Alarm
Low Alarm
Cleaning(cleaning time is set
in the cleaning output)
Limit Value
Hysteresis
Status
ON
OFF
Indice
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