PLC Autocontroller’s Xiamen hub just received fresh stock of the T3420A—the SIL-rated “voltage-only” sister board to the well-known T3419. Built for 0–5 V, 0–10 V and bipolar ranges, it converts 32 single-ended voltage signals into TMR data without external resistors, delivering lower drift and faster response for turbine speed, draft pressure or tank-level transmitters that already output a high-level voltage.
1.What makes T3420A different
• Four jumper-selectable ranges: 0–5 V, 0–10 V, ±5 V, ±10 V—swap in seconds, no firmware.
• On-board triple A/D per channel; 2oo3 voting happens inside the FTA, so the Tricon sees one pre-validated digital value—140 dB CMRR, 20 dB better than current-input boards.
• Continuous ±30 V over-voltage protection; survives mis-wiring and meets IEC 61000-4-5 surge Level 4.
2.Quick-spec snapshot
|
Item
|
Value
|
|
Channels
|
32 single-ended, BNC-press terminals
|
|
Input impedance
|
1 MΩ ±0.05 %
|
|
Scan rate
|
2 ms / 32 ch (fully parallel)
|
|
Temp. drift
|
25 ppm/°C max
|
|
Settling time
|
<50 µs to 0.01 %
|
|
Noise
|
<0.3 mV rms 0.1–10 kHz
|
|
On-board memory
|
128 kB ring buffer, 2-s avalanche capture
|
|
Power
|
3.3 V 0.9 A + 24 V 0.05 A
|
|
Temperature
|
–40 … +75 °C
|
|
Certification
|
ATEX II 3 G Ex ec IIC T4 Gc
|
|
Dimensions
|
267 × 132 × 32 mm
|
3.Field-proven tricks
① Speed triple-redundancy: wire three 0–10 V speed probes to one T3420A and use the 128 kB buffer for 1 µs avalanche logging—perfect for overspeed curve comparison.
② Furnace draft: pick ±5 V range to read –500 … +500 Pa; 140 dB CMRR eliminates inverter harmonics without extra isolators.
4.Contact & ship today
Sales Manager May
E-mail: ab@mooreplc.com
Phone/WhatsApp: +86-18106909650
What happens next?
-
-
-
Your quote
You’ll get a fully customized quote to fit your unique needs.
-
