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Yokogawa SD1015B02-2S1C
Product Introduction:
The SD1015B02-2S1C/97S01 is a 2-channel universal input paperless recorder from Yokogawa’s SD1000 series. The suffix “2S1C” indicates 2 universal inputs + 1 isolated 4–20 mA transmission output + 1 alarm relay output, and “/97S01” is the serial number/manufacturing code. This variant provides analog transmission output in addition to recording and display.
Detailed content
Function Features:
- 2 universal input channels (TC, RTD, mA, V, mV)
- 1 isolated 4–20 mA transmission output (retransmits selected channel or computed value)
- 1 alarm relay output (SPDT)
- 5.6 inch color TFT LCD display
- Trend recording (up to 30 days)
- RS-232C serial communication (Modbus RTU)
- USB memory port for data export
- Event recording (10,000 events)
Technical Specifications:
| Parameter | Specification |
|---|---|
| Number of Input Channels | 2 channels (universal) |
| Input Types | TC (K, J, T, E, R, S, B, N), RTD (Pt100, JPt100, Cu50), 4–20 mA, 0–100 mV, 0–1 V, 0–5 V |
| Transmission Output | 1 isolated 4–20 mA DC (max 600 Ω load) |
| Transmission Accuracy | ±0.2% of span |
| Transmission Isolation | 500 V AC (input-to-output) |
| Alarm Relay | 1 SPDT (3 A at 250 V AC / 30 V DC) |
| Display | 5.6 inch TFT color LCD (640 × 480) |
| Recording Capacity | 30 days (1 sec interval) |
| Communication | RS-232C (Modbus RTU), USB |
| Power Supply | 100–240 V AC (50/60 Hz) or 24 V DC |
| Operating Temperature | 0°C to +50°C |
| Protection Rating | NEMA 4X / IP65 |
| Dimensions (W×H×D) | 144 × 144 × 100 mm |
| Weight | Approximately 0.85 kg |
| Compliance Standards | CE Marking, UL 508, RoHS Directive |
Material Composition:
- Front panel: PC with anti-glare coating
- Housing: ABS flame-retardant (UL94 V-0)
- Display: Tempered glass cover
- Terminals: Phosphor bronze, nickel-plated
Structure Characteristics:
- 144 × 144 mm panel cutout
- Rotating display head (0–270°)
- Front-panel USB port
- RS-232C and 4–20 mA output terminal blocks
- Alarm relay with LED indicator
Working Principle:
Two input channels are sampled at 200 ms and displayed on the TFT LCD. The recorder stores data in circular flash memory. The 4–20 mA transmission output is generated by a 16-bit D/A converter with 500 V AC isolation from the input circuits. The output can retransmit Channel 1, Channel 2, or a computed value (average, sum, difference). The Modbus RTU interface enables SCADA integration. Alarm relay activates on high/low limit violations.
Advantages & Highlights:
- Isolated 4–20 mA output allows signal distribution to remote indicators/controllers without additional isolators
- 500 V AC isolation between input and output eliminates ground loops
- Dual-channel recording + transmission in a single compact unit
- Color display with trend, bar graph, and numeric readouts simultaneously
- USB export for compliance reporting (GMP, HACCP, ISO)
Applicable Industries:
- Same as SD1015B02-2SN (Power, Chemical, Food, Pharma, Water, HVAC)
- Particularly suited for applications requiring remote analog signal distribution (e.g., transmitting recorded temperature to a remote DCS)
Installation Requirements:
- Panel cutout: 138 × 138 mm, depth ≥ 110 mm
- 4–20 mA output loop: Max 600 Ω total resistance (including receiver input impedance)
- RS-232C cable: Shielded, max 15 m
- USB memory: FAT16/FAT32, max 32 GB
- Power supply fused: 2 A (AC) or 3 A (DC)
Usage Precautions:
- Do not exceed 600 Ω load on the 4–20 mA transmission output (output will saturate)
- Verify output range matches receiving device input range (e.g., 4–20 mA to 0–100°C)
- Do not connect non-isolated devices to the isolated output (defeats isolation purpose)
- Backup data via USB regularly (30-day storage is limited)
- Do not operate above 50°C
