KEYSYS KEYSYS-RJ-16CH-AD – 16‑channel A/D module for clean, fast field signal acquisition

The KEYSYS-RJ-16CH-AD is a compact 16‑channel analog acquisition module designed for PLC/DCS panels where wiring density and turnaround time matter. From my experience, it suits low‑to‑medium speed process signals—think 0–10 V sensors or 4–20 mA loops—while keeping the cabinet tidy thanks to RJ‑style quick‑connects. You might notice that the model name hints at what you get: “16CH” for channel count and “AD” for analog-to-digital conversion, which in many cases is exactly what panel builders are looking for during retrofits.

Company’s Order Placement Process and Guarantees

• Warranty period: 365 days
• Delivery time: 1 week for in-stock items; no more than one month at the latest
• Payment: 50% advance payment, full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• 16 analog input channels – Typically used for 0–10 V, ±10 V, or 4–20 mA process signals for compact panels.
• RJ-style quick wiring – Speeds up installation and field service compared to discrete screw terminals.
• DIN-rail friendly – Slim body that fits TS‑35 rails; easy to tuck into mixed I/O cabinets.
• Stable measurement performance – Suited to low‑noise acquisition of typical industrial analog signals.
• Flexible ranges – Voltage channels for 0–10 V or ±10 V; current inputs achievable with shunt resistors.
• Serviceable design – Front-access connectors make channel checks and replacements simpler during downtime.

Technical Specifications

Application Fields

This module fits common process and machine control tasks where reliable analog acquisition is needed without overcomplicating the network stack.

• Water and wastewater – Level, pressure, and pH transmitters (4–20 mA) into SCADA/PLC.
• Factory automation – Monitoring temperature controllers, drive references, or tension sensors (0–10 V).
• HVAC and building systems – Analog damper/valve positions and energy metering channels.
• Test stands and benches – Multi-channel logging at modest sample rates.
• Utilities and energy – Condition and process monitoring where channel density matters.

Advantages & Value

• Time-saving wiring – RJ-style connectors typically cut panel wiring hours, especially on repetitive builds.
• Cabinet density – 16 channels in a small footprint helps when space is already spoken for.
• Compatibility – Straightforward 0–10 V and 4–20 mA handling eases integration with mainstream PLC/DCS brands.
• Predictable lifecycle cost – Fewer terminal parts, quicker service access, and widely available accessories.
• Support you can reach – We provide quick lead times, advance replacements where possible, and configuration guidance.

Installation & Maintenance

• Mounting – Install on TS‑35 DIN rail in a clean, ventilated enclosure (IP54 or better is typical for dusty shops).
• Wiring – Use shielded twisted pair for analog runs; ground shields at one end only. For 4–20 mA, use precision shunts (e.g., 249–250 Ω, 0.1%) if the channel is voltage-mode.
• Power – Feed from a regulated 24 VDC supply with proper grounding; budget at least 25% headroom for inrush and accessories.
• Separation – Route analog away from VFD outputs and relay wiring; keep at least 100 mm clearance where possible.
• Maintenance – Quarterly check connector seating; clean dust with dry air; verify zero/span annually on critical channels. Firmware updates may not apply to purely analog modules.
• Safety – De‑energize before servicing; verify loop isolation and sensor polarity; observe ESD practices on open electronics.

Quality & Certifications

• CE and RoHS conformity for typical industrial environments
• Designed for operation at SELV/PELV levels (≤60 VDC) in control cabinets
• Manufacturer warranty is typically 12 months; our supplied units are covered by a 365-day warranty

Practical Notes & Accessories

One thing I appreciate is how quickly this format drops into existing panels. A customer in food processing told us they swapped two legacy terminal boards for a single KEYSYS-RJ-16CH-AD and cut their changeover by half a shift. For neat installs, teams typically add:

• RJ‑to‑screw terminal breakouts for field commissioning
• Shielded patch leads (industrial grade) for channel grouping
• 24 VDC DIN power supplies with surge protection
• DIN rail end clamps and labeling sleeves for channel identification