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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.
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Technical Specifications Measuring range pH:-2~16pH; ORP:-1999~+1999mV Unit pH,mV Resolution pH:0.01pH; ORP:1mV Basic error pH:±0.02pH;ORP:±2mV; Temperature 0~150.0 (Depend on the Sensor) Temperature resolution Temperature accuracy ±0.3 Temperature compensation 0~150.0 Temperature compensation Manual or automatic Stability pH:≤0.02pH/24h;ORP: ≤2mV/24h Current outputs Two :4~20mA,20~4mA,0~20mA Communication output RS485 MODBUS RTU Two relay control contacts...
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Instrument installation 10 mm 98 mm 120 mm 14.001 25.0 °C 14.51 mA T4000 MENU Instrument dimensions Instrument dimensions(Side view) Embedded installation Installation of back cover with waterproofing seal 93 mm (± 0.5 mm) Insert mounting hole size Insert the instrument into the square hole...
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Wall mounting a. Fixed bracket (M4 screw) is installed on the wall first. b. Insert the instrument into the fixture along the chute 53 mm Fixture Dimension Fixed bracket (M4 screw) is Insert the instrument into the installed on the wall first. fixture along the chute...
Instrument connection NO 1 COM 1 Temp NC 1 Temp NO 2 Input COM 2 NC 2 Pow ACL Pow DC+ (9~36V) (85~265V) Pow AC N Cur 1+ Pow DC- Com - Pow PE Pow PE Cur 2+ RS485 B RS485 A Terminal Function...
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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. Press and hold: Press and hold means to press the button, and accelerate after a certain time until the data is adjusted to the user's required value before releasing the button.
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. pH value+ Unit Instrument type pH / ORP 14.01 Voltage value 25.0 corresponding Temp. + Unit °C to pH Automatic...
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Menu structure The following is the menu structure of this instrument,press MENU key to enter menu setting mode: If the monitor prompts you to enter the calibration security password, press the【▼】 key or 【 】key to set the calibration security password, and then press the 【ENT】key to confirm the calibration security password.No initial password here,please enter directly by press【ENT】key.
Main Output Current 1 Channel Temperature 4-20mA Output Option 0-20mA 20-4mA Upper Limit Lower Limit Main Current 2 Channel Temperature 4-20mA Output Option 0-20mA 20-4mA Upper Limit Lower Limit 4800BPS RS485 Baud Rate 9600BPS 19200BPS None Parity Check Even 1 Bit Stop Bit 2 Bit 001+...
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Calibration Press [MENU] to enter the setting mode and select the calibration Standard USA:7.00,4.01,10.01 Automatic identification, calibrate 7.00 first Calibration Calibration NIST:6.86,4.01,9.18 Automatic identification, calibrate 6.86 first 235mV(Default) ORP Standard Sulution Field Field Calibration Calibration Offset Adjustment Slope Adjustment Calibration of Standard Solution Select the Standard Solution Calibration, a total of two groups: USA: 7.00, 4.01, 10.01 and NIST: 6.86, 4.01, 9.18.
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ORP Calibration: Press Menu key to enter the setting mode, select ORP standard liquid calibration, and input the known standard liquid value (default 235mV),press the ENT key to enter the standard solutioncalibration mode. If the instrument has been calibrated, the screen shows the calibration status and then press the ENT key again to enter the re-calibration if you need re-calibration.
MODBUS RTU General Information The hardware version number of this document is V2.0; the software version number is V5.9 and above. This document describes the MODBUS RTU interface in details and the target object is a software programmer. MODBUS command structure Data format description in this document;...
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MODBUS RTU Transmission Mode When the instrument uses RTU (Remote Terminal Unit) mode for MODBUS serial communication, each 8-bit byte of information contains two 4-bit hexadecimal characters. The main advantages of this mode are greater character density and better data throughput than the ASCII mode with the same baud rate.
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Implementation of MODBUS RTU in Instrument According to the official MODBUS definition, the command starts with a 3.5 character interval triggering command, and the end of the command is also represented by a 3.5 character interval. The device address and MODBUS function code have 8 bits. The data string contains n*8 bits, and the data string contains the starting address of the register and the number of read/write registers.
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MODBUS function code 0x10: write multiple registers This function code is used to write continuous registers to remote devices (1... 123 registers) block that specifies the value of the registers written in the request data frame. Data is packaged in two bytes per register.
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Data format in instrument Overview Floating Point Definition: Floating point, conforming to IEEE 754 (single precision) Description Symbol Index Mantissa 30…23 22…0 22…0 Index Deviation Figure 14: floating point single-precision definition (4 bytes, 2 MODBUS registers) Example: Compile decimal 17.625 to binary Step 1: Converting 17.625 in decimal form to a floating-point number in binary form, first finding the binary representation of the integer part 17decimal= 16 + 1 = 1×2...
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If it is large-end storage mode, after executing the above statement, the data stored in outdata of address unit is 0x41 Outdata + 1 stores data as 0x8D address unit (outdata + 2) stores data as 0x00 address unit (outdata + 3) stores data as 0x00 2.
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Read instruction mode The communication protocol adopts MODBUS (RTU) protocol. The content and address of the communication can be changed according to the needs of customers. The default configuration is network address 01, baud rate 9600, even check, one stop bit, users can set their own changes;...
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Daily maintenance Generally, the instrument does not need daily maintenance. If there is any fault, you can contact our company and carry out adjustment and repair under the guidance of our technical personnel (you can send it back to our company for help or check). Simple checking method: set the parameter zero potential E0 to 0.0mV, and the slope to 1.00, and then short circuit the terminals of the meter "PH+"...
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Package Set Product Description Quantity 1) T4000 online PH/ORP Controller 2) Instrument embedded bracket,wall mounting bracket 3) Operating Manual 4) Qualification Certificate Note: Please check the complete set of instruments before use. The company's other series of analytical instruments, please login to our website for enquiries.
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Warranty We Instruments warrants this product to be free from significant deviations in material and workmanship for a period of one year from the date of purchase. If repair is necessary and has not been the result of abuse or misuse within the warranty period, please return to We Instruments and amendment will be made without any charge.
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Notes Distinguished users, please pay attention to the following points when using the instrument, in order to ensure the life and accuracy of the instrument. Careful handling to avoid collision and falling instruments in use. Avoid contact with water or other liquids during use. Don't put the instrument in the sunshine for a long time.
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