Yokogawa YS1700-000/A34: Your Go-To Programmable Controller for Precision Temperature Control
Dual-loop control with auto-tuning – Sets it apart from single-loop competitors. One food processing client told me it cut their batch temperature variance by 30% during chocolate tempering cycles.
96x96mm DIN panel mount – Fits standard control cabinets without adapter plates. In most cases, you'll save hours during retrofits compared to odd-sized units.
RS-485 + optional Ethernet – Communicates with legacy PLCs while future-proofing for IIoT. You might notice the Modbus RTU implementation is unusually robust—fewer comms dropouts during welder interference.
4-20mA retransmission outputs – Critical for feeding data to SCADA without extra signal conditioners. Typically eliminates $200+ in peripheral costs per loop.
| Parameter | Specification |
|---|---|
| Brand/Model | Yokogawa YS1700-000/A34 |
| HS Code | 9032.89.60 (Automatic process control instruments) |
| Power Requirements | 100-240V AC ±10%, 50/60Hz (15VA max) |
| Dimensions & Weight | 96x96x145mm, 0.7kg (panel cutout 92x92mm) |
| Operating Temperature | -10°C to 55°C (derate above 40°C) |
| Signal I/O | Thermocouple (K/J/R), RTD (Pt100), 4-20mA inputs; Relay/SSR outputs |
| Communication | RS-485 (Modbus RTU), Optional Ethernet/IP |
This isn't just another panel meter—it's the controller you reach for when process stability directly impacts scrap rates. I've seen it excel in:
• Plastic extrusion lines maintaining ±0.5°C melt temp during shift changes
• Pharma autoclaves where FDA validation requires traceable calibration logs
• Food ovens with humidity swings that wreck cheaper PID controllers
One bakery tech mentioned how its ramp/soak profiles prevented burnt crusts during holiday rushes. Real-world stuff.
While not the cheapest option upfront, it typically pays back in year one. The 365-day warranty covers field failures—not just bench tests—and its compatibility with legacy Yokogawa systems avoids costly re-engineering. And honestly? The firmware updates actually fix bugs instead of adding new ones. We ship in-stock units within a week (max 4 weeks for custom configs), with 50% upfront via wire transfer. Full payment before DHL/FedEx dispatch—no surprises.
Installation & Maintenance Reality CheckMount it in standard 19" cabinets with at least 50mm clearance on sides—those SSR outputs get warm during long cycles. Skip the dust filters in flour mills though; they clog fast. From experience: calibrate annually (Yokogawa's tool takes 8 minutes), blow out vents quarterly, and update firmware during planned downtime. One caveat—it hates direct sunlight on the display, so avoid south-facing control rooms.
Certifications That Actually Get You Through InspectionsCE, UL 61010-1, RoHS 3 compliant. The ISO 9001:2015 stamp on the firmware loader matters more than you'd think during FDA audits. And yes—it passes IEC 61000-6-2 for those nasty voltage dips in older factories. Warranty covers parts/labor but not lightning strikes (bring your own surge protection).
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