CONTENT
1. GENERAL INSTRUCTION .............................................................................................................................. 1
1.1. INSTRUCTION ................................................................................................................................................. 1
2. TECHNICAL PARAMETERS .......................................................................................................................... 2
2.1. GENERAL SPECIFICATIONS ............................................................................................................................. 2
2.2. DIGITAL ......................................................................................................................................................... 2
2.3. ANALOG ........................................................................................................................................................ 2
3. INSTALLATION AND CONNECTION ........................................................................................................... 3
3.1 CAUTION ....................................................................................................................................................... 3
3.2 DIMENSIONS .................................................................................................................................................. 3
3.3 WIRE CONNECTION AND INTERFACES ............................................................................................................ 4
3.4 DISPLAY PANEL .............................................................................................................................................. 6
4. BASIC OPERATION DIAGRAM ..................................................................................................................... 8
4.1 BLOCK DIAGRAM .......................................................................................................................................... 8
4.2 TR700 OPERATION FLOW CHART .................................................................................................................. 9
4.3 TR700 FUNCTION TREE ............................................................................................................................... 10
5. GENERAL FUNCTION SETTING ................................................................................................................ 11
5.1. STEPS ........................................................................................................................................................... 11
5.2. FUNCTION TABLE ......................................................................................................................................... 12
6. COMMUNICATION PARAMETERS AND COMMUNICATION PROTOCOL ...................................... 14
6.1. RS232/RS485 COMMUNICATION SELECTIONS ............................................................................................. 14
6.2. COMMUNICATION PARAMETER SETTING OF SERIAL INTERFACE 1 ................................................................ 15
6.3. LIST OF COMMUNICATION PARAMETERS OF SERIAL INTERFACE 1 ................................................................ 16
6.4. COMMUNICATION PROTOCOL OF SERIAL INTERFACE 1 ................................................................................ 16
6.4.1. Zhimei Protocol .................................................................................................................................. 16
6.4.2. Modbus Protocol................................................................................................................................. 18
6.4.3. Longtec Protocol................................................................................................................................. 24
7. CALIBRATION OF THE METER ................................................................................................................. 39
7.1. SIGNIFICANCE OF THE CALIBRATION............................................................................................................ 40
7.2. OPERATION OF THE CALIBRATION ................................................................................................................ 41
7.2.1. Steps ................................................................................................................................................... 41
7.2.2. Calibration in Kind ............................................................................................................................. 42
7.2.3. Digital Calibration .............................................................................................................................. 44
7.2.4. Modification of the Calibration Coefficient ....................................................................................... 46
7.3. CAL DRAWING ............................................................................................................................................ 46
7.4. PARAMETER LIST OF CALIBRATION IN KIND ................................................................................................ 47
7.5. PARAMETER LIST OF DIGITAL CALIBRATION ................................................................................................ 47
7.6. REMINDERS OF CALIBRATION ERROR .......................................................................................................... 48
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