Repair and Servicing of Jumo Logoscreen 500 Paperless Recorders

Posted on by admin
17 Aug
  • Manufacturer: JUMO GmbH & Co. KG
  • Series / Model: Logoscreen 500 (Type 706510 and associated variants)
  • Device Type: Paperless Screen Recorder / Industrial Data Logger

Jumo Logoscreen 500 paperless recorders are reliable industrial data acquisition systems designed for recording, visualizing, and archiving critical process variables (temperature, pressure, flow, humidity) across food processing, chemical, HVAC, and thermal treatment plants.

Long-term continuous operation inside control cabinets frequently results in backlighting degradation, display panel failures, depleted RTC backup batteries, power supply stage failure, or damaged analog measurement channels due to line voltage surges. Typical symptoms include a dark or flickering screen, CompactFlash card read/write errors, inaccurate sensor readings, loss of real-time clock settings, or communication loss (RS485/Ethernet).

What we repair on Jumo Logoscreen 500 recorders:

  • Display & Graphic Frontend: Replacement and repair of TFT screens, backlight CCFL/LED inverter restoration, and front-panel button servicing.

  • Analog Input Channels: Component-level repair of universal inputs (RTD Pt100/Pt1000, thermocouples, 0/4–20mA, 0–10V), precision A/D converters, and cold-junction compensation stages.

  • Internal Power Supply Unit: Overhaul of internal switching power supplies (SMPS), DC regulators, and replacement of thermally stressed electrolytic capacitors.

  • Main Processor & Data Memory: Troubleshooting of processor boards, non-volatile FLASH/RAM memory repair, system clock RTC battery replacement, and CompactFlash interface repairs.

  • Communication & I/O Interfaces: Servicing of optocoupled RS232/RS485 Modbus transceivers, Ethernet ports, and digital relay output channels.

Benefits of our repair service:

  • Retain Device Configuration & Historical Logs: Component-level hardware repair preserves your programmed input scaling, channel names, alarm limits, and archived data.

  • Avoid System Re-integration Costs: Eliminates the need to buy expensive replacement recorders or rewrite upper-level SCADA / data extraction software (PCA3000 / PCC).

  • Proactive Overhaul: Thermally vulnerable capacitors and lithium backup cells are replaced alongside primary fault repairs for renewed long-term reliability.