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YOKOGAWA SR1015B-1SN
Product Introduction:
The SR1015B-1SN is a 15-channel universal input paperless recorder from Yokogawa’s DX2000/SR1000 series. It is a 1/4 DIN (144 × 144 mm) panel-mount recorder providing high-speed, high-density data acquisition for complex process monitoring applications. The “15” denotes 15 input channels, “B” denotes the base configuration, “1” denotes 1 Ethernet port, and “SN” denotes specific power/communication configuration.
Detailed content
Measurement Principle:
The recorder employs 24-bit delta-sigma A/D converters to digitize inputs from thermocouples, RTDs, DC voltage, DC current, and frequency sensors at high speed. Data is processed by an embedded RISC processor, displayed on a color TFT LCD, stored in NAND flash memory, and transmitted via RS-232C, RS-485, Ethernet (Modbus TCP/EtherNet/IP), or USB to host systems.
Technical Specifications:
| Parameter | Specification |
|---|---|
| Model | SR1015B-1SN |
| Number of Channels | 15 Universal Input Channels |
| Input Types | TC (J, K, T, E, R, S, B, N, W, L, U), RTD (Pt100, Pt1000, Cu50, JPt100, Ni100), DC V (0–100 mV, 0–1 V, 0–5 V, 0–10 V), DC mA (0–20 mA, 4–20 mA), Frequency (0–1 kHz), Contact Input (DI) |
| Display | 320 × 240 pixel Color TFT LCD (65,536 colors) |
| Recording Interval | 0.1 sec to 3600 sec (selectable per channel group) |
| Recording Memory | 256 MB internal flash (approx. 60 days at 1 sec interval for 15 ch) |
| Accuracy (DC V) | ±0.1% of F.S. ±1 digit |
| Accuracy (DC mA) | ±0.1% of F.S. ±1 digit |
| Accuracy (TC/RTD) | ±0.1% of reading or ±1°C (whichever is greater) |
| Power Supply | 100–240 V AC, 50/60 Hz (SN) |
| Communication | RS-232C, RS-485 (Modbus RTU), Ethernet (Modbus TCP/EtherNet/IP), USB (front panel) |
| Alarm Outputs | 4 Relay Outputs (SPDT, 250 V AC / 3 A) |
| Analog Output | 2 Channels (4–20 mA DC, selectable) |
| Event Input | 8 Contact Inputs (for batch/event recording) |
| Protection Class | NEMA 4X / IP66 (front panel) |
| Dimensions | 144 × 144 × 179 mm (W × H × D) (1/4 DIN) |
| Cutout Size | 138 × 138 mm |
| Weight | Approx. 1.2 kg |
| Approvals | CE, UL, CSA, FM (hazardous area variants available) |
Structural Features:
- 1/4 DIN (144 × 144 mm) panel-mount form factor — larger than UP55A, accommodates 15 channels
- Color TFT LCD (320 × 240) — supports trend graphs, bar graphs, and custom displays
- Front panel USB port — for data backup and configuration
- SD card slot (rear panel) — for extended data logging and transfer
- 8 event input contacts — for batch start/stop, alarm acknowledge, etc.
- 2 analog outputs — for retransmission to local indicators or controllers
Performance Parameters:
| Parameter | Value |
|---|---|
| Sampling Rate | 100 ms per channel (15 ch), 50 ms per channel (8 ch), 20 ms per channel (4 ch) |
| Data Retention | 10 years (with SD card) |
| Number of Recordings | Up to 500 recording files |
| Batch Recording | Yes — up to 100 batches with event markers |
| Trend Recording | Yes — real-time trend display on LCD |
| Remote Display | Yes — via Web browser (Ethernet) |
| Web Server | Built-in — no software required for remote viewing |
| Power Consumption | ≤ 15 VA |
| Operating Temperature | 0°C to +50°C (32°F to +122°F) |
| Storage Temperature | -20°C to +60°C (-4°F to +140°F) |
Key Advantages:
- 15 universal input channels in 1/4 DIN — highest channel density for complex processes
- Color TFT display with trend graphs — visual process monitoring at a glance
- Built-in Web server — remote monitoring from any browser without additional software
- 8 event inputs + batch recording — ideal for batch chemical and pharmaceutical processes
- 2 analog outputs — retransmit key values to local indicators
- 256 MB flash memory — extended recording duration without external storage
- SD card + USB backup — multiple data archival options
Applicable Industries:
- Pharmaceutical Manufacturing (Batch Processes)
- Chemical Processing (Multi-reactor plants)
- Food and Beverage (Fermentation, Pasteurization)
- Power Generation (Multi-unit monitoring)
- Oil and Gas (Multi-well monitoring)
- Environmental Monitoring Stations
- Semiconductor Manufacturing
- Water and Wastewater (Multi-point monitoring)
Installation Requirements:
- Cut panel opening to 138 × 138 mm for 1/4 DIN mounting
- Secure with mounting clips or screws (provided with unit)
- Connect all input signals using appropriate sensor cable types (TC extension wire for thermocouples, shielded cable for mA/V)
- For RS-485 communication: use shielded twisted-pair cable; terminate with 120 Ω resistor at the last device
- For Ethernet: use Cat5e or higher cable; connect to a managed switch for optimal performance
- Ground the recorder chassis to the panel ground bus
- Install cable glands (PG21 or PG29) for all cable entries to maintain IP66 rating
Usage Precautions:
- Do not exceed the rated input voltage/current for any channel — maximum 10 V DC or 30 mA DC per input
- Use correct thermocouple type settings — mismatched types cause errors up to tens of degrees
- Verify cold junction compensation (CJC) accuracy — place CJC sensor close to the terminal block
- Back up data to SD card before any firmware update
- Do not block ventilation slots — the unit generates heat; ensure airflow
- Do not apply power with incorrect voltage — “SN” = 100–240 V AC only
- Replace the internal backup battery every 2 years to preserve clock and configuration
- Do not write to the flash memory during a power failure — use the SD card for critical data
- Configure the Ethernet IP address before connecting to the plant network to avoid IP conflicts
