Omega RD101A RD100A 100mm 13-Channel Universal Input Chart Recorder 100-240V

Omega RD101A RD100A 100mm 13-Channel Universal Input Chart Recorder 100-240V

The Omega RD101A is a 100mm multi-channel universal input circular strip chart recorder from Omega Engineering's RD100A series. It accepts a wide range of input signal types — including voltage and thermocouples — across multiple channels, logging continuous process data to 100mm roll chart paper. A green LED dot-matrix display provides on-screen menu navigation and real-time channel readout, while a dual-channel bar graph gives at-a-glance status for two inputs simultaneously.

Specifications & What's Included

• Model: RD101A (RD100A Series)
• Chart width: 100mm
• Number of input channels: 13 (Channels 1–4 on main terminal block; CH12 at 390 nm, CH13 at 280 nm per rear calibration label)
• Input type: Universal (voltage, thermocouple, and compatible signal types)
• Supply voltage: 100–240 VAC
• Frequency: 50/60 Hz
• Power consumption: 70 VA MAX
• Display: Green LED dot-matrix alphanumeric + dual-channel bar graph
• Front panel controls: KEY LOCK, ESC, MENU, PRINT, ALARM/ACK, FEED, Enter
• Rear terminal block: 4-channel screw-terminal input block (channels 1–4, each with B, b, +A connections)
• Rear specialty channel calibration: 390 nm (CH12), 280 nm (CH13) — configured for UV/spectrophotometer input
• Form factor: Panel-mount / benchtop
• Country of manufacture: Japan
• Part number: 436001/S80
• Includes: Power cable and thermocouple/sensor input cable (as shown in photos)

Applications

The Omega RD100A/RD101A series chart recorders are used in laboratory, industrial process, and scientific monitoring applications where continuous, time-stamped data logging of multiple process variables is required. Common uses include temperature monitoring via thermocouple or RTD inputs, voltage signal logging from transducers and sensors, and recording output data from analytical instruments such as spectrophotometers — as evidenced by this unit's CH12 (390 nm) and CH13 (280 nm) wavelength-specific channel labeling, indicating it was previously paired with a UV/Vis spectrophotometric system. Chart recorders of this type provide a permanent, self-contained paper record of process conditions without requiring a PC or data acquisition software, making them standard fixtures in quality control labs, environmental monitoring stations, chemical processing, and pharmaceutical manufacturing environments. The RD100A series was produced by Omega Engineering in the mid-to-late 1990s and remains in use wherever a standalone, hardcopy process record is preferred or required.