Compact 3.5″ 320×240 HMI for industrial control, ideal for machinery operators seeking responsive, reliable human‑machine interfacing.
Product Overview
The Samkoon EA-035A‑T is a 3.5‑inch human‑machine interface featuring a 320×240 resistive touch display in a compact 86×86×40.5 mm housing. It delivers fast, accurate touch response and supports rich built‑in functions: data logging, recipe management, trend display, alarm handling and communication via RS‑232/485 or Ethernet. Rugged design meets industrial temperature and EMC standards. Free configuration software is provided. Its small footprint and flexible I/O make it perfect for packaging machines, food processing lines, lab equipment and other automated systems.
How to Use
- Unpack and mount into a standard 69×69 mm panel cutout, secure with the built‑in clamps.
- Install Samkoon HMI configuration software on your PC (free via email upon request).
- Connect power supply (24 V DC) and communication lines (RS‑485 or Ethernet) per wiring diagram.
- Design screens: drag‑and‑drop buttons, indicators, trends and set up tags linking to your PLC registers.
- Download project via cable. Test touch response and screen transitions.
- Run in automatic mode; monitor real‑time data, alarms and logs.
Tips: keep firmware updated; back up project files; calibrate touch if accuracy drifts.
Frequently Asked Questions (FAQ)
- What resolution does EA‑035A‑T support?
320×240 pixels. - What power supply is required?
24 V DC ±10%. - Which communications protocols are built in?
RS‑232/485 and optional Ethernet. - Is the configuration software free?
Yes, sent by email with purchase. - What operating temperatures?
0 °C to 50 °C. - How do I mount it?
Panel cutout 69×69 mm, secure with rear clamps. - Can it log data?
Yes, supports internal logging and USB export. - Is touch resistive or capacitive?
Resistive. - What warranty is typical?
Manufacturer often offers 1 year; sellers vary. - Does it support multi‑language screens?
Yes, through tag‑based text tables.
User Review Summary
Across marketplaces like eBay and Alibaba customers praise its solid build, crisp display and responsive touch. Pros: easy configuration, reliable operation, compact size. Cons: configuration software documentation can be sparse; resistive touch less smooth than capacitive. Some note shipping delays from China sellers but package quality is good.
Comparison with Competing Products
Weintek cMT‑1070 (7″) vs. Samkoon EA‑035A‑T
• Display size/resolution: 7″ 800×480 vs. 3.5″ 320×240
• Price: ~$200–250 vs. $60–90
• Connectivity: Weintek adds MQTT/OPC UA, Wi‑Fi optional; Samkoon is basic RS‑485/Ethernet
• Ideal: cMT‑1070 for complex multi‑device networks; EA‑035A‑T for simple, cost‑sensitive panels.
Technical Specifications
Display: 3.5″ resistive touch, 320×240 pixel
Dimensions: 86×86×40.5 mm; cutout 69×69 mm
Power: 24 V DC ±10%, 1.5 W typical
Comm: RS‑232/485, Ethernet 10/100 Mbps
Memory: project up to several hundred KB; data logging support
Operating Temp: 0–50 °C; humidity 10–90 % non‑condensing
Certifications: CE, FCC (depending on region)
Brand or Manufacturer Info
Samkoon is a Chinese automation brand specializing in cost‑effective HMIs and PLCs since 2002. Known for simple, reliable panels with free software, they serve small to mid‑size industrial automation projects globally.
Purchase Recommendations
Samkoon: https://www.samkoon.store/ea-035a-t/