Paperless Recorder – Ohkura VM7000A

Features

  • Easy operation with touch panel providing an intuitive user interface
  • Equipped with large capacity built-in memory
  • The SD memory card is adopted as a storage medium.
  • Multiple display presentations
  • Calculation function
  • PC support software supplied as standard
  • Compact size and Lightness
  • 12 channels recording
    22 ranges of thermocouples, 4 ranges of resistance temperature detector and 8 ranges of DC voltage/current input can be recorded in up to 12 channels.
  • Ethernet function as standard
    FTP, Web server, SNTP and Modbus TCP function are available.
  • Communication (Option)
    RS-485 Modbus communication is available.
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The VM7000A is a paperless recorder that displays measured data on the LCD in real time and stores data in the SD memory card. The type of input such as thermocouple, resistance temperature detector, DC voltage(current), etc. can be selected for each channel (maximum of 12 channels available). The data stored in SD memory card can be regenerated on the screen, and with the use of support software supplied the data can also be regenerated on a PC screen. The data recorded in CSV format can be directly read in a spreadsheet such as Excel, which facilitates the processing on a PC. (The data recorded in binary format cannot be read in.)

Specification

Number of input channels 3, 6, 9 or 12 channels (can be selected at the time of purchase)
Input circuit Input mutual isolation
Measuring cycle 100ms
Input types DC voltage, DC current (Shunt resistance are fitted in input terminals), thermocouple, resistance temperature detector
Selection of input types It can be selected by the menu displayed with front side MENU button
Burnout function Provided as standard for thermocouple and mV voltage inputs. (Upscale only)
CMRR 140dB or more
NMRR 60dB or more
Allowable source resistance About 0.18 μV/Ω (with burnout). 5 Ω or less of lead wire resistance of a resistance temperature detector.
Input filter function Each channel can set it. (First order lag filter)
Time constant settable in the range from 0 to 99 second.
Scaling function Possible by DC voltage (current) input.
Scaling range: -32000 to +32000
Decimal-point position can be set at any point.
It is possible to select from among the unit that is the preset or to select it from 20 units (each unit 8 characters or less) that can be made.
Extraction-of-square-root function Extraction-of-square-root operation is performed to the input value of each channel.
Display
        Display unit 5.7-inch TFT color LCD (320 × 240 pixels)
The brightness can be adjusted.
(notes)
In the liquid crystal display, there might be a pixel that always is lit or turned off. Please understand it is not a breakdown beforehand though the brightness of the screen might look uneven by the characteristic of the liquid crystal.
        Display Color Selectable from 16 colors
        Display language Japanese/English can be selected from a set screen
        Back light life 50,000 hours
Alarm Function
        Set number A maximum of four points can be set as each channel.
        Type of alarm High and low limits, fault
        Display It displays on a digital display screen at the time
of an alarm occurrence. A red line is displayed at the right of the horizontal trend screen or it displays it downward on the vertical trend screen.
        Hysteresis It is possible to set it with 0 to 100% of the
input range.
        Alarm output Common alarm output:
One output (open collector output)
Contact rating: 30V DC, 20mA/1 point
Ethernet (10base-T)
        HTTP server Measured-value display:
Measurements and the alarm situation of each channel are displayed.
         FTP server • File download: Download of the recorder file stored at SD memory card is possible.
• File deletion: Deletion of the recorder file saved at SD memory card is possible.
• Access authentication: The access privilege to FTP server is attested
         Modbus TCP • Data reading: Reading measurements and the setting is possible by the Modbus TCP protocol.
• Data writing: A part of setting can be written by the Modbus TCP protocol.
         SNTP SNTP client function: It is possible to synchronize time with the time of SNTP server.
Power supply
        Rated supply voltage 100 to 240V AC
        Working voltage range 85 to 264V AC
        Power supply frequency 50/60Hz (common use)
Power consumption
        AC100V 15VA or less (Normal)            12VA or less (LCD off∗)
        AC240V 25VA or less (Normal)            22VA or less (LCD off∗)
∗ When the backlight is turned off by the function of turning off LCD.

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Ohkura VM7000A – Paperless Recorder-DpstarGroup

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