Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Summary of Contents for Delfino DRH7
- Page 1 Daruifuno Digital ORP Sensor User Manual Model: DRH7 Version 1.0...
-
Page 3: Table Of Contents
Contents Chapter 1 Specification..............1 Chapter 2 Basic Information..............2 2.1 Security Information..............2 2.2 Overview..................2 2.3 Dimensions................2 Chapter 3 Installation.................3 3.1 Sensor Installation..............3 3.2 Sensor Wiring................4 Ch a p t e r 4 Co m m u n i c a t i o n Pr o t o c o l s ......... . . 5 4.1 Overview of Modbus RTU........ -
Page 5: Chapter 1 Specification
Basic Information Chapter 1 Specification Product specifications are subject to change without notice. -2000 ~ +2000 mV Measuring range 0.0~50.0 °C Resolution 1 mV 0.1 °C Accuracy ±2 mV Calibration method Zero calibration, slope calibration, deviation calibration Operating temperature 0 to 50°C Work pressure ≤2Bar Waterproof level... -
Page 6: Chapter 2 Basic Information
Basic Information Chapter 2 Basic Information 2.1 Security Information Please read this manual completely before unpacking, installing and operating this equipment. Pay special attention to all precautions. Otherwise, it may cause serious personal injury to the operator or damage the equipment. 2.2 Overview The digital ORP sensor adopts the classic electrochemical principle, which is reliable in measurement and stable in performance. -
Page 7: Chapter 3 Installation
Installation Chapter 3 Installation 3.1 Sensor Installation Refer to the pictures in this section to install and fix the sensor. To ensure that the sensor can measure safely and accurately, the following conditions must be met during installation: Choose a location that is convenient for operation and maintenance to install the sensor. ... -
Page 8: Sensor Wiring
Installation Water overflow Water outlet water intake Figure 3 Schematic diagram of five-parameter flow cell installation 1-Flow cell 4-pH sensor fixed connection cover 2-Flow cell cover 5-dissolved oxygen sensor fixed connection cover 3-Turbidity sensor fixed connection cover 6-conductivity sensor fixed connection cover 3.2 Sensor Wiring The sensors are connected correctly as defined in the table below. - Page 9 Protocol Chapter 4 Communication 4.1 About Modbus RTU Overview About Modbus RTU overview: The electrode acts as a slave on the network and supports the Modbus RTU communication protocol. Data communication is initiated by the host, and the first byte of the transmitted message is the target slave address.
-
Page 10: Corresponding Parameter Table Of Communication Address
Protocol Example: Send frame: [01 04 00 02 00 02 D0 0B], meaning as follows: [01]: slave address [04]: function code [00 02]: The starting address of the register is 0x02 [00 02]: Read 2 registers from the starting address (ie, read 1 single-precision floating-point data result) [D0 0B]: CRC check data Return frame: [01 04 04 00 00 41 C8 CA 42], meaning as follows:... - Page 11 Protocol System setting parameters (read with function code 03, write with function code 06) Parameter Address Data Format Value range Initial Value Illustrate 0: Level 2 buffering 1: Level 4 buffering Sample rate Unsigned 0～4 2: 8-level buffer 3: 16-level buffer 4: 32-level buffer Temperature 0: Automatic...
-
Page 12: H O W T O U S E C O M M O N F U N C T I O N
Protocol Recovery (Write with function code 06) Initial Parameter Address Data Format Value range Illustrate Value Write the value of 99 to restore the setting Restore settings Unsigned parameters, but the communication settings will not be restored 4.3 How to use common functions 4.3.1 Reading electrode measurements Read the ORP value and temperature value measured by the electrode (assuming the electrode address is 1) -
Page 13: E L E C T R O D E Ca L I B R A T I O
Protocol 4.3.3 Electrode Calibration Electrode calibration (assuming the electrode address is 1) Zero calibration: The calibration value is the value set by the zero calibration point, the default is 86 Use function code 16 to write value 86 to register address 206 to perform calibration Host send [01 10 00 CE 00 02 04 00 00 42 AC 4E AE] Slope calibration: The calibration value is the value set by the slope point, the default is 256... -
Page 14: Common Problems And Solutions
Maintenance Chapter 5 Maintenance In order to obtain the best measurement results, regular maintenance and maintenance are required. Maintenance and maintenance include cleaning of electrodes, checking for damage, etc. 5.1 Maintenance Period Maintenance work Maintenance frequency Visual inspection per month Check Calibration Monthly (depending on usage environment conditions) Replace electrodes Yearly (according to usage environment conditions) - Page 16 Delfino Environmental Technology Co., Ltd. www.daruifuno.com info@daruifuno.com...
Need help?
Do you have a question about the DRH7 and is the answer not in the manual?
Questions and answers