Yokogawa OR1400 Oscillographic Recorder

The Yokogawa OR1400 Oscillographic Recorder is a discontinued multi-channel data acquisition instrument designed for real-time recording of transient and dynamic phenomena in industrial process control and automation systems. It combines high-speed analog-to-digital conversion with flexible input conditioning to capture voltage, frequency, thermocouple, and strain measurements simultaneously across up to four channels.

Technical Specifications

• Chart Speed: Up to 250 mm/s


• Effective Recording Span: 201 mm


• Sample Rate: 100 kHz per channel


• Resolution: 32 dots/mm (proprietary dot-overlap technology)


• A/D Converter: 14-bit resolution


• Memory: 1 Mdata per channel (4-channel models)


• Maximum Recordable Frequency: 10 kHz

Key Features

• Input Flexibility: DC-coupled and AC-coupled voltage modes; universal 50 mV to 50 V range or specialized 100 mV to 500 V configuration


• Frequency Measurement: 50 Hz to 10,000 Hz input with 0.01 Hz resolution


• Thermocouple Support: Direct connection for K, J, E, T, L, U, R, S, B, N, and W types


• Strain Measurement: 100 µε to 20,000 µε range for load and acceleration phenomena


• Signal Conditioning: Per-channel 1.5 Hz cut-off line filter and low-pass filter; optional RMS converter unit for AC voltage RMS measurement


• Control Interface: LCD display with rotary knob control and key-touch operation


• Trigger Capability: Selectable trigger conditions for event-based data capture


• Communication: GPIB and RS-232-C interfaces; instrument drivers available for LabVIEW and other ADEs


• Data Export: Multiple recording formats and customizable printout options

Typical Applications Process monitoring, transient event recording, multi-parameter industrial data logging, and automation system validation.

Compatibility & Integration Optional isolation modules available: High-Speed 200 MS/s 14-bit and High-Speed 100 MS/s 12-bit variants. Approximate weight: 6.8 kg (15 lbs).