Twinno T6500 User manual

T6500
249 mV
pH / ORP
2020-03-05 12:05:33
4.001pH
twinno
上海淳业仪表科技有限公司
Shanghai Chunye Instrument Technology Co.,Ltd
T6500 On-line pH/ORP Meter
Operating Manual

Perface
Features
Specifications
Installations
Instrument connection
Keypad descriptions
Display description
Menu structure
Calibration
Curve query
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Contents
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wall-mounted
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MODBUS RTU General Information
pH buffer and temperature values
Daily Maintance
Package set 
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Warranty
Notes

1
Preface
Thank you for your support. Please read this manual carefully before use.The correct use
will maximize the performance and advantages of the product, and bring you a good
experience.
When receiving the instrument, please open the package carefully, check whether the
instrument and accessories are damaged by transportation and whether the accessories
are complete. If any abnormalities are found, please contact our after-sales service
department or regional customer service center, and keep the package for return
processing.
This instrument is an analytical measurement and control instrument with highly
precision.Only skilled,trained or authorized person should carry out installation, setup and
operation of the instrument.Ensure that the power cable is physically separated from the
power supply when connection or repair.Once the safety problem occurs, make sure that
the power to the instrument is off and disconnected.
For example, it may insecurity when the following situations occur:
1) Apparent damage to the analyzer
2) The analyzer does not work properly or provides specified measurements.
3) The analyzer has been stored for a long time in an environment where the
temperature exceeds 70 °C.

Features
The instrument with different types of pH electrode or ORP electrode is widely used in power plant,
petrochemical industry, metallurgical electronics, mining industry, paper industry
Biological fermentation engineering, medicine, food and beverage, environmental water treatment,
aquaculture, modern agricultural planting and other industries.
In aqueous solution's pH value, ORP value and temperature value were continuously monitored and
controlled.
●Large LCD color LIQUID crystal display
●Intelligent menu operation
●Data recording & Curve display
●Various automatic calibration functions
●Differential signal measurement mode, stable and reliable
●Manual and automatic temperature compensation
●Three sets of relay control switches
●High limit, low limit and hysteresis control
●Various output modes of 4-20mA&RS485
●The same interface displays pH/ORP, temperature, current, etc
●Password protection can be set to prevent non-staff misoperation.
2

Specifications
Measuring range
Measure Unit
Resolution
Basic error
Temperature
Temperature resolution
Temperature basic error
Woring temperature
Temperature compensation
Stability
Current output
Communication output
Other functions
Relay control contacts
Optional power supply
Working environment
Ambient temperature
Relative humidity
Protection level
Instrument Weight
Dimensions
Installation
-2։16.00pH2000։2000mV
pHծmV
0.001pH1mV
±0.01pH±1mV
-10։150.0˫(it is basesd on the electrode)
0.1˫
±0.3˫
0։150˫
Automatic or manual
pH:≤0.01pH/24hORP: ≤1mV/24h
3 Rd 4։20mA，20։4mA，0։20mA
RS485 Modbus RTU
Data record/curve display/data upload
3 Group:5A 250VAC5A 30VDC
85։265VAC,9։36VDCPower:≤3W
There is no strong magnetic interference besides the earth
-10։60˫
No more than 90%
IP65
1.5kg
235×185×120mm
Wall mounted
3

Installations
Installation size
Installation completion drawingFix the fixed piece of the instrument
185 mm
35 mm
235 mm
190 mm
4
120 mm
Instrument shape, wall - mounted fixed piece size
Hole:8*12.5mm

5
Instrument connection
The connection between the instrument and the sensor: the power supply, output signal, relay alarm contact and the
connection between the sensor and the instrument are all inside the instrument, and the wiring is as shown above. The
length of the cable lead fixed by the electrode is usually 5-10 Meters, insert the corresponding label or color wire on the
sensor into the corresponding terminal inside the instrument and tighten it.
RLY1 RLY2 RLY3
G,L,N
V+,V-,RX,TX
V+,V-,A,B
V+,V-,A,B
A1,B1
+,-
3 groups of relay
G-groundwire, L-live, N-neutral
RS232 communication output
Digital input channel 1
Digital input channel 2
RS485 communication output
DC power supply
EC1,EC2,EC3,EC4
T+,T-
INPUT
REF
S+,S-
CE,RE,WE
I1,G,I2
I3,G,I4
Electrical conductivity/resistivity wiring
Temperature connection
pH/ORP/lon measure
pH/ORP/lon reference
Membrane dissolved oxygen, FCL
Constant voltage residual chlorine/
chlorine dioxide/ozone
Output current
Input current
Tips: If the user dials the wire by himself, lengthens the cable or shortens
the cable,
Take care to remove the black conductive skin outside the transparent
wire.
To prevent short circuit from the reference end of the electrode, please
use a multimeter to check
Use the pH dedicated cable connection.
RLY1 RLY2 RLY3 G N L
AC220V
EC1 EC2 EC3 EC4 T+ T- INPUT REF S+ S- WE RE CE I1 G I2 I3 G I4
COND
V+ V- RX TX
RS232
V+ V- A B
SENSOR1
V+ V- A B A1 B1 + -
SENSOR2 485
DC24
pH
DO/FCL FCL/DOZ mA1 mA2 mA3 mA4 TEMP

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.
6
Enter menu setting mode
Return measurements
Two modes switching
Enter standard solution calibration mode
Calibrated: check the calibration status
Re-calibration: press “ENT” again
Return to
previous menu
Confirmation
options
Menu setting mode:
press this key to loop
down the menu options
Menu setting mode:
press this key to
rotate menu options
Press the key in
measurement mode to
display the trend chart
In measurement mode,
press this button to set
parameters for browsing

Display descriptions
All pipe connections and electrical connections should be checked before use.
After the power is switched on, the meter will display as follows.
Setting modeMeasurement mode
Trend Chart DisplayCalibration mode
2019-01-09 12:53:17
235 mV
25.0 °C
pH / ORP
14.51 mA
C1
SP1 SP2 SP3
2019-01-09 12:53:17
pH / ORP
2019-01-09 12:53:17
pH / ORP
7.00
4.01
10.01
-5 mV
170 mV
-5 mV
98 %
Done
Calibrating
Error
offset:
Slope:
7
20
16
12
8
4
050 100 150 200 250 300 350 400
2019-01-09 12:53:17 14.001 25.0 °C
2019-01-09 12:53:17
pH / ORP
25.0 °C
4.001 pH
2019-01-09 12:53:17
pH/ORP
Main Value+ Unit Year/Month/Day
Clean
Instrument type
Time:Minutes:Senconds
Relay 1
[blue is off
and red is on]
Relay 2
[blue is off
and red is on]
Relay 3
[blue is off
and red is on]
Current 1
Current 2
Switch display
Automatic
temp. comp.
Temp. + Unit
Configure
Calibration
Set Points
Output
Data Log
System