Yokogawa UR1B-045N
Product Type: 4-Channel Paper Chart Recorder (with paper)
Product Introduction:
The UR1B-045N is a 4-channel universal paper chart recorder from Yokogawa’s UR1B product line. It records process variables such as temperature, pressure, flow, and level on roll paper using thermal or ink-jet printing. The “045N” suffix indicates 4 channels with no alarm function.
Detailed content
Model Code Breakdown:
- UR1B — Universal Recorder, 1/4 DIN size, paper chart type
- 04 — 4-channel recording
- 5 — 5-point recording (or specific range option)
- N — No alarm function
Technical Specifications:
| Parameter | Value |
|---|---|
| Number of Channels | 4 channels (simultaneous recording) |
| Recording Method | Thermal pen recording on roll paper |
| Paper Width | 100 mm (standard roll) |
| Recording Speed | 10 mm/hr, 20 mm/hr, 40 mm/hr, 80 mm/hr (selectable) |
| Input Signals | DC voltage (1–5V), DC current (4–20 mA, 0–10 mA), Thermocouple (J, K, T, E, R, S, B, N), RTD (Pt100, JPt100, Cu50) |
| Accuracy | ±0.5% of F.S. (for DC input), ±0.4% of reading (for TC/RTD) |
| Display | LED digital display for each channel (4 digits) |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Power Consumption | ≤ 15 VA |
| Operating Temperature | 0°C to +50°C |
| Enclosure Rating | IP65 (front panel), NEMA 4X |
| Dimensions (W x H x D) | 144 x 144 x 188 mm |
| Weight | Approximately 2.3 kg |
| Alarm Function | None (N suffix) |
Functional Features:
- 4-pen simultaneous recording on a single chart
- 5-point round-robin recording capability (pen cycles through channels)
- Digital display of current value for each channel on front panel
- Scale programming via front-panel keys (no PC required)
- Chart paper advance: Automatic with time-stamp printing
- Retransmission output (optional, 4–20 mA mirror of selected channel)
Structural Features:
- 1/4 DIN front panel size
- Roll paper cassette at bottom
- Pen cartridge access from front
- Screw-terminal input connections (8 terminals for 4 channels)
Applicable Industries:
- Water treatment plants
- Food processing
- Pharmaceutical batch recording
- HVAC monitoring
- Educational and laboratory settings
Installation Requirements:
- Panel cutout: 138 x 138 mm
- Mount in a location with ambient temperature ≤ +50°C
- Use shielded cable for thermocouple inputs to minimize noise
- Ensure roll paper is loaded correctly before power-on
Usage Precautions:
- Replace recording pens when print quality degrades
- Use the correct thermocouple type setting for accurate temperature measurement
- Do not operate with the front cover removed while recording
- Change roll paper only when the recorder is powered off












