4T48 Configurable indicators - alarm units

Available Configuration

N° digits
Transmitter power supply
Power supply

Description

4T48 Configurable Indicators – Alarm Units

Microprocessor-based indicator in 48x48 mm (1/16 DIN) format, manufactured using SMT.
The instrument features a Lexan membrane faceplate (IP65 protection) with 3 keys, a 4-digit display, and 3 LEDs indicating output statuses.
The input signal can be selected from a wide range of sensors:
  • Thermocouples: J, K, R, S, T, B, E, N, L GOST, U, G, D, C
  • Resistance thermometers: Pt100, Pt100J, 2- or 3-wire
  • PTC and NTC thermistors
  • Linear inputs: 0–60 / 12–60 mV, 0–20 / 4–20 mA, 0–10 / 2–10 V, 0–5 / 1–5 V, 0–1 / 0–2 V
Signal selection is performed using the faceplate keys and correct input terminals.
No external shunt or adapter is required.
A digital input (24Vdc/4–5 mA) is available for reset, hold, flash, peak handling, or releasing latch.
The instrument has up to 4 outputs, which can be mechanical relays (5A / 250V) or logic outputs (24V ±10%, 10V min / 20 mA).
One 4–20 mA output (max. 500 Ω) is available for retransmitting the measured input signal.
Retransmission, digital input, and the third output are alternatives. Optional triac output can drive resistive loads up to 1A at 240V.
Programming is simplified via grouped function blocks (CFG for alarm hysteresis, Inp for inputs, Out for outputs) and a simplified menu.
Optional PC programming kit (connection cable + Windows menu guide) further simplifies configuration.
A configurable personal software protection code restricts editing and display of configuration parameters.
  • Faceplate-configurable input
  • Password-protected configuration
  • Configurable via serial link
  • Transmitter power supply incorporated
  • Custom thermocouple linearisation available
  • Internal linearisation for engineering units
  • Labels for common physical units
  • Sampling time and trip intervention programmable (15–120 ms, resolution 2000–8000 steps)
  • Retransmission of measured signal
  • 3 trip points configurable from faceplate
  • 4 trip points configurable from keyboard
  • RS485 optically isolated serial line (Protocols: GEFRAN CENCAL or MODBUS RTU)
  • Rapid PC configuration via Winstrum package