Intro Summary
Compact 3.5″ HMI with high-precision touch, 262K color display, RS‑232/422/485 & USB support for efficient automation.
Product Overview
The Samkoon SA‑035F is a cost-effective, industrial-grade 3.5″ human–machine interface (HMI) featuring a 320×240 TFT display with 262,144 colors and a sensitive 4-wire resistive touchscreen. Its rugged front panel is rated IP65, making it suitable for harsh environments. Powered by a 32-bit Cortex-A8 600 MHz CPU, it includes 64 MB Flash, 128 MB DDR2 memory, a USB device port for programming, and one serial COM port supporting RS‑232/422/485. This panel was introduced as an upgraded replacement for the discontinued SA‑3.5A model
How to Use
- Mount into a standard 92×77 mm cutout; secure with rear clips.
- Connect 24 V DC supply ±15%; typical consumption ~6 W (3 W nominal).
- Wire the COM port for RS‑232, RS‑422, or RS‑485 PLC communication.
- Use the USB device port and Samkoon SAtool to download HMI project.
- Calibrate touch via SAtool and configure runtime parameters.
- Seal front panel; ideal mounting avoids dust and liquid ingress.
Important: maintain ambient temperature between –10 to 65 °C and use IP65-compliant wiring glands .
Frequently Asked Questions (FAQ)
- What size and resolution does it have? – 3.5″ TFT, 320×240 pixels.
- How many colors? – Displays up to 262,144 colors.
- What interfaces are available? – One COM port switchable RS‑232/422/485, plus USB Device.
- Is the front panel waterproof? – Yes, IP65-rated.
- What software is used for programming? – SAtool from Samkoon.
- What memory is included? – 64 MB Flash and 128 MB DDR2.
- What CPU does it use? – 32-bit Cortex-A8 at 600 MHz.
- Operating temperature? – -10 °C to 65 °C; humidity 10‑90% RH non-condensing.
- Is the SA‑035F new or refurbished? – It’s a new replacement for SA‑3.5A from April 2017.
- What protections are certified? – CE EN55022/24, FCC Class A, 6 kV surge, 2G vibration.
User Review Summary
Sellers on eBay and FastToBuy report fast shipping, solid packaging, and product matching descriptions. One buyer noted: “Great item at a great price… well-packed, fast shipping” . Overall, users value its durability, responsiveness, and value, with no notable complaints on performance.
Comparison with Competing Products
| Feature | Samkoon SA‑035F | Generic 3.5″ HMI Panel | Samkoon SK‑035FE (4.3″) |
|---|---|---|---|
| Display | 3.5″, 320×240, 262K colors | Similar size/resolution | 4.3″, 480×272, 16.7M colors |
| Touch Sensor | 4‑wire resistive | Often capacitive/resistive | Same resistive tech |
| COM Ports | 1 COM RS‑232/422/485 + USB | May include Ethernet/extra USB | Similar serial + USB |
| Front Panel Protection | IP65 | Typically IP54 | Likely IP54/IP65 variant |
| CPU & Memory | 600 MHz Cortex‑A8, 64+128 MB | Varies; often less powerful | Likely similar or stronger |
| Price (approx.) | US $114–$127 shipped | US $80–$120 | Slightly higher |
Technical Specifications
- Display: 3.5″ TFT, 320×240 px, 350 cd/m² brightness, 400:1 contrast
- Touch: 4‑wire resistive panel
- Color: 262,144; LED backlight
- CPU: Cortex-A8 600 MHz
- Memory: 64 MB Flash, 128 MB DDR2
- Ports: 1× COM (RS‑232/422/485), USB Device
- Power: 24 VDC ±15%, ~3 W standby, ~6 W max
- Operating: –10–65 °C, 10–90% RH, IP65 front, CE/FCC, vibration & surge tested
- Physical size: 96×81×47 mm, cutout 92×77 mm
Brand or Manufacturer Info
Shenzhen Samkoon Technology Co., Ltd. specializes in industrial HMIs, PLCs, and control systems. Known for budget-friendly and durable devices, they emphasize ease of use and compatibility. Their SA-series is aimed at reliable factory automation with easy-to-navigate programming tools
Purchase Recommendations
- Samkoon: https://www.samkoon.store/sa-035f/