QSI QTERM-K65 – Rugged Panel-Mount HMI/Keypad Terminal for Serial Control

The QSI QTERM-K65 is a compact, keypad-based HMI that seems to be purpose-built for tough, panel-mounted operator tasks—think packaging lines, pump stations, compact machinery, or retrofit control panels where a reliable physical keypad still beats a touchscreen. From my experience, teams pick the K65 for its straightforward setup, strong serial protocol support, and the fact that operators can use it with gloves without missing a beat.

You might notice that it focuses on what matters for day-to-day control: a clear 5.7-inch class display, tactile keys, and robust RS‑232/422/485 connectivity. No fluff. It typically drops into a NEMA 4/12 panel cutout and just runs—minimal learning curve, low maintenance, and very predictable behavior on the shop floor.

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 terms: 50% advance payment, full payment before delivery
• Express options: FedEx, UPS, DHL

Each unit is inspected before shipment. We pack to industrial standards and, where possible, provide a power-up test photo or report. If you need a quick firmware/configuration backup from your existing unit, we can typically help replicate settings.

Key Features

• Rugged panel-mount design – Front panel typically meets NEMA 4/12 (indoor), so it handles dust, splashes, and daily wipe-downs.
• Tactile keypad interface – Reliable operation with gloves; reduces accidental touches in vibration-prone areas.
• 5.7-inch class display – Clear text and graphics for setpoints, alarms, and status; readable in most shop floor environments.
• Industrial serial communications – RS‑232/422/485 for straightforward integration with PLCs, drives, and motion controllers.
• Compact footprint – Saves panel space while still offering enough screen real estate for operators.
• Stable and predictable – In many cases, these units run for years with minimal intervention—ideal for retrofits or standardized machine builds.

Quick customer note: “We swapped a worn terminal on a labeler with a QTERM‑K65 and were live in under an hour. The keypad is a win for our operators with gloves.” – Maintenance Supervisor, food & bev line

Technical Specifications

Note: Specifications can vary slightly by production lot and interface options. If you share your current part label or rear panel photo, we’ll validate the exact ports and power requirements before shipping.

Related or Supporting Products

• QSI QTERM-G55 – Similar size with touchscreen (in many cases); helpful where on-screen soft keys are preferred.
• QSI QTERM-G70 – Larger display and expanded connectivity; good for richer graphics or multi-screen navigation.
• QSI QTERM-Z60 – Compact, hardened unit for harsher environments; often chosen when space is tight.
• QSI QTERM-A12 – Higher-end platform; typically used when advanced UI or networking is required.
• 24 VDC DIN-rail power supply (60–120 W) – Stable, low-ripple supply recommended for HMIs and serial devices.
• Shielded RS‑485 cable – For longer runs; use twisted pair and proper termination to reduce noise.
• Panel-mount gasket/clip kit – Maintains NEMA seal after service or relocation.

Installation & Maintenance

• Panel & environment – Use a rigid, properly sized cutout; ensure even gasket compression for NEMA seal. Keep intake air clean and avoid direct washdown on cable entries.
• Power & grounding – Supply clean 24 VDC (typical). Tie logic ground to panel ground at a single point; add a ferrite or surge protection where noise is present.
• Serial wiring – Match RS‑232/422/485 modes on both ends; for RS‑485 use twisted pair, 120 Ω termination at the ends, and bias resistors as needed.
• Ventilation – Maintain airflow around the rear housing. Avoid mounting above heat sources; 0–50 °C room temp is the safe zone in most cases.
• Routine care – Wipe the lens with non-abrasive cleaner; check keypad tactility seasonally. Back up configuration files after any changes.
• Firmware/config – If your site standardizes on a certain revision, keep a golden image. We can help read out or load configuration from a working unit.

Quality & Certifications

• Typically complies with CE for EMC and safety; front panel designed for NEMA 4/12 installation
• UL considerations depend on configuration; many units were supplied as Recognized Components for panel use
• RoHS compliance may vary by production date; we can verify by serial/label
• Seller warranty: 365 days from delivery