1. Manuals
  2. Brands
  3. HENGKO Manuals
  4. Data Loggers
  5. HT R71
  6. Manual

HENGKO HT R71 Manual

8 channel data logger
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Thank you very much for using our ultra-thin widescreen paperless
recorder!
This manual provides methods on performance indicators, installation
and wiring, operation, parameter setting, troubleshooting, etc. Before
using the ultra-thin widescreen paperless recorder, please read this
manual carefully to correctly grasp the use of the method before the
specific operation to avoid unnecessary losses caused by wrong
operation.
After you read it, please keep it properly in the place where you can
read it at any time, so that you can refer to it when you operate it.
The contents of this manual are subject to change without prior notice
due to function and performance upgrades, etc.
Reproduction or duplication of the contents of this manual, in whole
or in part, is strictly prohibited.
If you find any inaccuracies or errors in this manual, please contact us.
PREFACE
DISCLAIMMER
- 1 -

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the HT R71 and is the answer not in the manual?

Questions and answers

Related Manuals for HENGKO HT R71

Summary of Contents for HENGKO HT R71

  • Page 1 PREFACE Thank you very much for using our ultra-thin widescreen paperless  recorder! This manual provides methods on performance indicators, installation  and wiring, operation, parameter setting, troubleshooting, etc. Before using the ultra-thin widescreen paperless recorder, please read this manual carefully to correctly grasp the use of the method before the specific operation to avoid unnecessary losses caused by wrong operation.
  • Page 2 Boxed items Please check the following items before you use them after opening the box. Once you receive the product, the quantity is wrong or there is physical damage in appearance, please contact our company or sales outlet. Ultra-thin widescreen paperless recorder Mounting bracket (4pcs)）...
  • Page 3 Serial numbe r Name Unit Quantity Remarks Ultra-thin widescreen Table paperless recorder Mounting bracket (with Root For tray screws) mounting fixing Instruction manual copy Product certificate of copy conformity/warranty card Data management sheet software (CD-ROM) USB flash drive Optional Accessorie RS-232C Root Optional...
  • Page 4 Caution Please contact the manufacturer if you find any damage caused by the  transportation of the instrument when unpacking. This series of meters is suitable for general industrial applications, if  there are special requirements for use, please set up separate protection devices.
  • Page 5 The instrument should take corresponding shielding measures when it  is close to the power line, strong electric field, strong magnetic field, static electricity, noise or AC contactor and other interference. In order to avoid measurement errors, when the sensor is a ...

  • Page 6: Table Of Contents

    Table of Contents Chapter 1 Overview.................. 8 Chapter 2 Technical Specifications............9 Chapter 3 Installation Wiring..............12 3.1 Instrument dimensions..............12 3.2 Opening dimensions..............13 3.3 Instrument mounting..............13 3.4 Instrument wiring................. 14 3.4.1 Wiring methods..............14 3.4.2 Terminal description.............. 16 3.4.3 Terminal schematic wiring diagram........17 3.4.4 AC/DC power input wiring.............17 3.4.5 Input signal wiring..............
  • Page 7 5.11 Report query................58 5.12 Function information..............60 5.13 Explanatory hints and auxiliary interfaces......61 Chapter 6 Fault Analysis and Troubleshooting........62 Chapter 7 Service Guide................. 64 Appendix I Bit Number Configuration..........65 Appendix II Flow rate calculation formula and meter coefficients..70 Appendix III Compensation Types and Commonly Used Gas Standard Density....................71 Appendix IV Flow rate usage examples..........

  • Page 8: Chapter 1 Overview

    Chapter 1 Overview Overview In recent years, some industrial sites are constrained by the installation depth, the number of data collection channels and operating comfort, the general traditional products have completely failed to meet the needs of the site, and brought considerable inconvenience to the use of the unit on-site application, so a short thickness, high integration, colorful, comfortable operation, full functionality, high reliability and ideal cost performance products have great practical significance.
  • Page 9 Chapter 2 Technical indicators Display Screen: 7-inch true color TFT LCD (800 * 480 dot matrix) Accuracy: Real-time display: ±0.2% F.S. Trace accuracy: ±0.2% F.S. (Note: thermocouple should be removed from the cold end error) Processor Using high-performance ARM Cortex-M3 32-bit RISC core, can simultaneously achieve multiple signal acquisition, recording, display and multiple alarms Storage module...
  • Page 10 Output function Distribution output: support up to 3 groups of transmitter isolated distribution +24VDC, each group of distribution ≤ 60mA, support other specifications isolated distribution (such as 12VDC, 5VDC distribution output) Transmission output: support up to 4 channels of standard current transmission output, with a load capacity of 750Ω...
  • Page 11 Data dumping Data backup and dumping: support USB 1.1, 2.0 USB flash drive, support 1G to 32G USB flash drive for data dumping, strong compatibility, compatible with most of the U disk on the market (recommended to use the industrial version of the flash drive) Power supply Power supply: 100 ~ 240VAC (rated power supply voltage 220VAC), 50/60HZ AC power supply, support 24VDC (18VDC-36VDC) DC power supply,...

  • Page 12: Chapter 3 Installation Wiring

    Note Technical indicators for this series of instruments common indicators, functional configuration please prevail in kind. If the technical indicators are inconsistent with the physical instrument, please take the physical object as the standard. Chapter 3 Installation Wiring 3.1 Instrument size 第三章...
  • Page 13 3.2 Opening size 注意  当集装表安装时，应参考上图中推荐的仪表间最小间距，以保证必要 的散热及装卸空间。 3.3 仪表安装 Note When the set meter is installed, the minimum spacing between meters recommended in the above diagram should be referred to in order to ensure the necessary space for heat dissipation and loading and unloading. 3.3 Instrument Installation - 13 -...

  • Page 14: Instrument Wiring

    Installation method. Step 1: Push the meter into the mounting hole from the front of the mounting panel (please use a steel plate). Where the thickness of the mounting panel is (1.5~4.0) mm. Step 2: Use the mounting bracket that comes with the meter to install it as shown above (two brackets are installed on the left and right sides of the meter, and the screws used for the mounting bracket of the instrument panel are M3 standard screws).
  • Page 15 Please set an air switch in the power circuit to isolate the meter from the main power supply. Tighten the terminal screws firmly. Tightening torque: 0.5 N.m (5 kgf.cm). After connecting the power cord, you should connect the power supply to check whether the meter is normal.

  • Page 16: Terminal Description

    When thermocouple input, please do not use thick wire with good heat dissipation effect (it is recommended to use wire with cross-sectional area <0.5mm²), and take care not to make external temperature change as much as possible (especially the switch of nearby exhaust fan will produce large temperature change).

  • Page 17: Ac/Dc Power Input Wiring

    3.4.3 Terminal schematic (physical subject) 3.4.4 AC/DC power input wiring Note The power input method at the project site must be consistent with the power input method provided by the instrument itself. The power supply voltage at the project site must be limited to the withstand voltage range of the instrument.

  • Page 18: Input Signal Wiring

    3.4.5 Input/output signal wiring Note Once a channel input signal is a switching signal, this channel will no longer support analog, RTD, thermocouple and other signals. Other signals such as Pt1000, 0-10V, etc. should be specified when ordering. 3.4.6 Relay contact output wiring Note Wiring wire cross-sectional area: 0.5~2.5mm2, torque: 50Nm.

  • Page 19: Transmitter Wiring

    The default contact capacity of this machine is 1A@250VAC/1A@30VDC, other higher contact capacity factory, please specify when ordering. 3.4.7 Transmitter Wiring Note The default 24VDC feeder is shipped from the factory, please specify other specifications when ordering. When the power consumption of the transmitter exceeds the feeder load capacity, please use an external voltage regulator to supply power.

  • Page 20: Communication Wiring

    3.4.8 Communication Wiring RS-485 connection method The communication cable should be shielded twisted pair (the communication length should not exceed 1000 meters), and one end of it The other end is connected to the 485 communication terminal of the instrument, as shown in the figure below. RS-232C connection method Users only need to connect one end of the RS-232C communication cable to the RS-232C interface of the instrument.

  • Page 21: Chapter 4 Basic Operation And Operation Screen

    Note Please do not plug and unplug the communication cable with electricity, if you need to operate, please do so after the instrument power supply is turned off. Chapter 4 Basic Operation and Operation Screen 4.1 Instrument keys Keyboard Functions - 21 -...
  • Page 22 4.2 Usage Patterns - 22 -...

  • Page 23: Status Flags

    Model Type Content Possible operations Data display and query operation mode Display of This mode is entered when Operation test/computation data the system is powered on Mode Use [Menu Key] to switch to the next sub operation screen Press and hold the [Menu Key] and [Confirmation Key] simultaneously for 1 second or more to enter the...
  • Page 24 Cycle flag： ② A. With display: Cyclic switching of each display combination. B. No display: Fixed screen, no cyclic switching. USB device flag ③ A. With display: USB is detected to connect with the instrument. B. No display: No USB is connected to the meter. System sound logo ④...
  • Page 25 4.4 Total view and flow screen A single screen can display up to 16 channels of real-time data, the number of channels is different while its display screen is also different, of which 6 channels screen is shown below, introduced as follows. ①...
  • Page 26 total range, and the filled area turns red when the system is in alarm. ⑧ Unit: Display the engineering unit of the channel, which can be freely configured. ⑨ Relay status: Display the current relay output status, red is in the alarm state, green represents the normal state, black represents not equipped with the corresponding set relay.

  • Page 27: Bar Graph Screen

    the [Backup Configuration] screen directly after decrypting). Press [F5] function key or [menu key] to turn the page to switch to the bar graph screen. ⑫ Instantaneous flow rate: The instantaneous flow rate operation value of the current channel. ⑬ Total Accumulated Value: The total accumulated value of the flow rate of the current channel.
  • Page 28 ① Channel serial number: Display the channel serial number corresponding to the channel (there is no such function in the channel bar graph and grouping screen for 8 channels and above). ② Project position number: display the corresponding project position number of the channel, which can be freely configured.
  • Page 29 data of the channel, if the current channel is in alarm state, the measurement/computation data turns red. ⑩ Alarm status: from top to bottom are upper limit HH/upper limit HI/lower limit LO/lower limit LL, red means over limit alarm. When the system is in alarm status, the system alarm symbol appears in the status bar.

  • Page 30: Real-Time Curves

    Configuration] screen for data backup (permission must be decrypted first, and jump to the [Backup Configuration] screen directly after decrypting). Press [F5] function key or [menu key] to turn the page to switch to the real-time curve screen. 4.6 Real-time curve A single screen can display up to 8 channels of real-time curves and data, of which 6 channel screens are introduced as follows.
  • Page 31 ③ Grid: convenient for user to estimate time and data value. ④ Grid time: the time represented by the current grid. ⑤ Time scale: the length of time represented by each grid, which is related to the recording interval, and the execution function is equivalent to [F3] function key operation.
  • Page 32 curve screen. Press [Left Key] or [Right Key] to move the cursor.  Press [Confirmation key] to execute the display/fade operation of the  channel curve where the cursor is located. 4.7 History curve A single screen can display up to 8 channels of historical curves and data, of which 6 channel screens are introduced as follows.
  • Page 33 ④ Grid: Convenient for users to estimate time and data values. ⑤ Grid time: The time represented by the current grid. ⑥ Bit number: Display the corresponding engineering bit number/channel serial number of the channel, which can be freely configured. ⑦...

  • Page 34: Pid Screen

    operation at the curve display/fade flag of the channel where the cursor is located or execute the fixed-point recall operation at the recall time where the cursor is located or execute the positioning axis display/fade operation at the positioning axis where the cursor is located (the cursor is at the position after the recall time and before the display/fade flag).
  • Page 35 ② I: integration time, 0 has no integral effect, otherwise the larger the value, the weaker the integral effect. ③ D: Differentiation time, no differentiation for 0, otherwise the larger the value, the stronger the differentiation. ④ AUTO/MAN: Automatic state/manual state. ⑤...
  • Page 36 4.9 Alarm List Up to 12 alarm messages can be displayed on a single screen, and the screen description is as follows. ① Pointer: The symbol that points to the search result when searching by serial number or page number. ②...

  • Page 37: Power Down List

    ⑦ Operation: Press [F1] or [F2] to retrieve alarm information by page. Press [F3] or [F4] to retrieve alarm information by bar. Press [F5] or [Menu Key] to turn the page to switch to the power-down list screen. 4.10 Power down list Up to 12 power-down messages can be displayed on a single screen with the following screen description.
  • Page 38 ① Pointer: a symbol pointing to the search result when searching by serial number or page number. ② Serial number: records are arranged by time mode, the closer the occurrence time, the later the arrangement, up to 48 pieces of power down/up time information can be saved, and up to 12 pieces of information can be displayed simultaneously on a single screen.

  • Page 39: Chapter 5 Configuration And Auxiliary Operations

    Chapter 5 Configuration and Auxiliary Operations 5.1 Configuration Login Press and hold [Menu Key] and [Confirmation Key] at the same time for one second (some screens are also available by pressing [F5] function key) to enter the configuration login screen, select the corresponding operator rights and enter the correct password to enter the configuration screen, and then select the corresponding sub-configuration entrance for configuration setting, the wrong password cannot enter the configuration...

  • Page 40: Configuration Screen

    Press [Left Key] or [Right Key] to move the cursor. Press [Up key] or [Down key] to toggle the selection or adjust the value. Press [Confirmation key] to execute the function where the cursor is located. 5.2 Configuration screen After [Login Configuration] is decrypted, it enters into [Configuration Screen], and the screen is introduced as shown in the figure.

  • Page 41: System Configuration

    Press [Up key] or [Down key] to move the cursor. Press [Confirmation key] to enter the sub-group configuration screen where the cursor is located. 5.3 System Configuration Move the cursor to the [System] entry in the [Configuration] screen and press the [Confirmation Key] to enter [System Configuration], the screen is introduced as shown in the figure.
  • Page 42 ④ Recording interval: can be set as 1/2/4/8/12/24/36/60/120/180/240 seconds. The larger the recording interval, the longer the recording time, and vice versa, the smaller the recording interval, the shorter the recording time. In general, when the measured signal changes quickly, the recording interval should be chosen smaller.
  • Page 43 Press [Confirmation Key] to execute the function where the cursor is located or edit the data where the cursor is located. Note The operation and management password is the only password to enter the configuration and modify the parameters, after losing it, you cannot enter the configuration and modify the parameters.

  • Page 44: Input Configuration

    5.4 Input Configuration In the [Configuration] screen move the cursor to the [Input] entry and press [Confirm] to enter [Input Configuration], the screen is introduced as shown in the figure. ① Channel serial number/bit number: Channel serial number is limited by hardware, support bit number modification function, see Appendix I [Bit number configuration] for details of bit number modification.
  • Page 45 ⑤ Points. Filter time: the setting of filter time helps to improve the smoothness of the signal, the longer the filter time the smoother the signal but the slower the response. ⑥ Range range: user-defined range range, divided into upper and lower limits, can be freely configured.
  • Page 46 (LO), lower limit (LL). B, alarm contacts: relay number, such as contact 01 represents the 01 relay, that is, R1 (displayed in the instrument screen) or K1 (displayed in the instrument wiring method). C. Alarm return difference: It prevents the relay from operating frequently when the signal oscillates near the alarm threshold.
  • Page 47 ① flow model: different flowmeter can choose a different calculation model, the instrument temporarily provides four kinds of calculation model, differential pressure model for differential pressure flowmeter such as standard orifice plate, standard nozzle, etc., frequency type vortex model for pulse frequency flowmeter such as vortex, turbine flowmeter, etc., linear model for current output type vortex flowmeter, electromagnetic flowmeter, etc., single cumulative model for pure cumulative channel The mass flow rate formula, see Appendix II for details.
  • Page 48 rate, and then back-calculated back with the flow model, see Appendix II for details. ⑥ Cumulative coefficient: the meter is accumulated every second by (current value * cumulative coefficient / 3600). When the accumulation factor is 1, it is accumulated by 1/3600 ...
  • Page 49 ⑬ Standard pressure: It refers to the pressure corresponding to the volume flow rate after compensation. When the calculation result is volume flow rate, the rated pressure should be set, its parameters are determined by the user, and the default of the instrument is 0.000Mpa. the calculation result of mass flow rate has nothing to do with the standard pressure.

  • Page 50: Output Configuration

    Press [F3] to turn on/off the flow function of this channel. Press [F4] to clear the accumulated data. Press [F5] to quickly exit the subgroup. 5.5 Output configuration Move the cursor to the [Output] entry in the [Configuration] screen and press the [Confirmation] key to enter [Output Configuration], the screen is introduced as shown in the figure.
  • Page 51 ④ Output terminal: The position of the output signal on the instrument terminal (i.e. terminal position). ⑤ Signal source: Specify the source sampling channel of the current output value of the variable output channel. ⑥ Positive and negative action: In positive action, the upper limit of the variation range corresponds to the upper limit of the output current and the lower limit of the variation range corresponds to the lower limit of the output current when the default variation range is used;...

  • Page 52: Communication Configuration

    5.6 Communication Configuration Move the cursor to the [Communication] entry in the [Configuration] screen and press [Confirmation Key] to enter [Communication Configuration], the screen is introduced as shown in the figure. ① Online mode: It includes both PC and printer. To enter the print configuration, you must set the online mode to printer first.
  • Page 53 Press [Left Key] or [Right Key] to move the cursor. Press [Up Key] or [Down Key] to adjust the data or switch the selection. Press [Confirmation Key] to execute the function where the cursor is located or edit the data where the cursor is located.

  • Page 54: Print Configuration

    printed. The start and end time date must be earlier than the end time date, otherwise the data/curve cannot be printed. ⑤ Printing Progress: Real-time display of the current printing process progress, the filled area is the current printed part, the middle value of the progress bar is the printing progress percentage value.
  • Page 55 ① Backup channel: the channel number where users need to backup historical data, such as 01-01 means only 1 channel is to be backed up, 01-06 means 1-6 channels are to be backed up. ② Device Status: Display the status of USB flash drive, including online, offline and error status.
  • Page 56 5.9 Displaying grouping Move the cursor to the [Display] entry in the [Configuration] screen and press the [Confirmation Key] to enter the [Display Configuration], the screen is introduced as shown in the figure. ① Display combination: Select the display combination serial number. ②...

  • Page 57: Control Configuration

    screen. When all channels under a group display combination are closed, it  means that this group display combination is not opened. 5.10 Control configuration Move the cursor to the [Control] entry in the [Configuration] screen and press [Confirm] to enter [Control Configuration], the screen is introduced as shown in the figure.
  • Page 58 ⑦ Set deadband: Set the deadband value (the controlled variable is allowed to change within the specified range). If the deadband is too large, the system control will be delayed, and if the deadband is too small, the actuator will act frequently. ⑧Control mode: Set the manual automatic control mode after cold start or start control configuration.
  • Page 59 5.11 Report inquiry Move the cursor to the [Query] entry in the [Configuration] screen and press [Confirm] to enter [Report Query], the screen is introduced as shown in the figure. The cumulative monthly report shows the cumulative details of the monthly flow rate, the annual cumulative value and the current total cumulative value of the meter in the last month of the previous year and the year in which it is located;...
  • Page 60 Operation: Press [Left Key] or [Right Key] to move the cursor; press [Up Key] or [Down Key] to switch the selection; press [Confirm Key] to execute the function where the cursor is located or edit the data where the cursor is located;...

  • Page 61: Function Information

    5.12 Function Information In the [Configuration] screen, move the cursor to the [Function] entrance and press the [Confirmation Key] to enter [Function Information], the screen introduction is shown as follows. ① System Memory: Displays the total memory capacity of the current system configuration.
  • Page 62 ⑦ Serial communication: Shows whether the current system is configured with serial communication module. ⑧ Serial printing: Shows whether the current system is configured with serial printing function. ⑨ Data backup: Shows whether the current system is configured with data backup function. ⑩...

  • Page 63: Chapter 6 Fault Analysis And Troubleshooting

    Chapter 6 Fault Analysis and Troubleshooting The paperless recorder adopts advanced production technology and undergoes strict testing before leaving the factory, which greatly improves the reliability of the instrument. Common faults are generally caused by improper operation or parameter setting. If you find a fault that cannot be handled, please record the fault phenomenon and contact us in time.
  • Page 64 compatible USB flash 4）Lack of remaining space drive on the U disk 5） Use a larger 4） Misoperation in the backup capacity USB flash process drive or clean up the excess files in the USB flash drive Correct operation 5） 1）Select the time 1）No data in the time with data section 2）...

  • Page 65: Chapter 7 Service Guide

    Chapter 7 Service Guide Dear user: Hello! Thank you for choosing this series instrument. Our company will thank you for your trust in our company with high quality service. The first time you use the instrument, first check whether the actual configuration of the product is consistent with the instrument configuration list, and whether the random data, accessories and other boxed items are complete.

  • Page 66: Appendix I Bit Number Configuration

    product failure to help the engineer fix it as soon as possible. Please fill in the accurate phone/fax number, mailing address and  contact person for the return of the repaired product. The company usually sends back by express mail (without insurance), ...
  • Page 67 English/a: for lowercase English character input. Numbers: for numeric character input. Special symbols: for special symbol input. Operation: Press [Up Key] or [Down Key] to switch the input method, press [Right Key] to move to the channel bit number function box. ...
  • Page 68 Chinese character selection. Select the desired Chinese character. Operation: Press [Left Key] or [Right Key] to move the cursor left or right, press [Up Key] to move the cursor up or to the Pinyin selection function box, press [Down Key] to move the cursor down or to the input method function box.
  • Page 69 Appendix 1.2 Pinyin Selection ⑤ After selecting the pinyin, press [Down] to move to the Chinese character selection box, then press [Right] to move the cursor to the "tower", the screen is shown in Appendix 1.3. After selecting the Chinese character, press [Confirmation Key] to confirm the input of Chinese character, at this time, the horizontal bar at the channel bit number function box will automatically move backward one, similarly repeat the operation ④...

  • Page 70: Appendix Ii Flow Rate Calculation Formula And Meter Coefficients

    Appendix 1.3 Chinese Character Selection Appendix 1.4 Bit Number Saving Appendix II Flow rate calculation formula and meter coefficients Appendix 2.1 Mass flow rate calculation formula ① Differential pressure flowmeter:  ..Q  K    type appendix 2.1-1 : Instrument coefficient ...

  • Page 71: Density

     : Medium density ③ Linear flowmeter:  Q  K   ..type Appendix 2.1-3 : Instrument coefficient  : Linear signal (volume value)  : Medium density Appendix 2.2 Instrumentation coefficients When the model is selected as [differential pressure type], the flow instrumentation coefficients are K ...
  • Page 72 should be based on the linear flow meter formula. Appendix III compensation type and common gas standard density Appendix 3.1 media compensation type ① No compensation When the system does not have temperature and pressure compensation, the density default is a fixed value of 1.000Kg/m³. ②...
  • Page 73 saturated steam pressure (or temperature) density table to obtain the  working density Superheated Steam The purpose of superheated steam compensation is to obtain the mass flow rate. The working density is obtained from the density table of superheated steam to achieve temperature and pressure compensation. In this case, the ...

  • Page 74: Appendix Iv Flow Rate Usage Examples

    pressure), is the compression coefficient of natural gas in the standard condition, and Z is the compression coefficient of natural gas in the flowing condition. Appendix 3.2 Standard Density of Commonly Used Gases The standard densities of common gases at 1 standard atmosphere and 20℃...
  • Page 75 2、Select [KPa] for engineering unit 3、The lower range limit is 0.000, the upper range limit is 4.000 4, other parameters are set as needed [open the alarm group in the input configuration of the flow operation channel is the flow alarm] Flow accumulation: 1、...
  • Page 76 Example 2: electromagnetic flowmeter to measure the volume flow of water Known: electromagnetic sensor: two-wire system 4-20mA transmitter, corresponding to the flow rate range 0.00 ~ 25.00 m3 / h Settings: Input configuration in : 1, the signal type select [4 ~ 20mA] 2.Engineering unit select [m3/h] 3、The lower range limit is [0.00], the upper range limit is [25.00] 4、Other parameters are set as needed...

  • Page 77: Appendix V Pid Control Loop Application Examples

    Appendix V PID control loop application examples As shown in the figure, a 2-channel PID single-loop control system is composed of this series of instruments to achieve a simple temperature control, the measurement signal is the temperature of the tank, the output signal to the heating wire (assuming that the heating wire can receive a continuous signal).
  • Page 78 Manually adjust MV in the PID screen to make PV reach near the set  value. Set the loop state to automatic and observe whether the sampling  value PV reaches the requirement. Adjust the PID parameters to make the loop reach the stable state. ...

Table of Contents