SC 204 Digital Process Scanner

Process Scanner 

(16-Channel Dedicated / 8-Channel Universal Input)

• Long-lasting battery backup for memory

• Cold junction compensation for thermocouple input

• Parallel printer port

• Software calibration

• MODBUS RTU communication over RS-485

• Available in 8-channel universal or 16-channel dedicated input versions

• Individual alarm output for each channel

• 2-digit LED display for channel number

• 4-digit LED display for process value

• 5-digit LED display for engineering units

Electronet Series SC-204 is a microcontroller-based process scanner designed for industrial applications where multiple input monitoring is required. It supports 16 dedicated inputs or 8 universal inputs, allowing compatibility with RTD, Thermocouple, mA, Voltage, and mV signals.
It provides real-time display of channel number, process value, and engineering units with optional alarms and communication capabilities. All parameters are fully programmable through the front keypad.

Number of Inputs

• 16 Channels (Dedicated)

• 8 Channels (Universal)

Input Types

1. Dedicated (16-Channel)

• RTD (PT-100 / PT-200), 2- or 3-wire

• Thermocouples: J, K, R, S, E, B, T types

• mA (0–20 mA / 4–20 mA)

• Voltage (0–5 V / 1–5 V / 0–100 mV DC)

2. Universal (8-Channel)

• RTD / Thermocouple / mA / Voltage / mV

• LED display for Process Value, Channel Number, and Engineering Unit

• Range:

  • Programmable –999 to +9999 (for mA & Voltage)

  • Fixed range for RTD & Thermocouple types

• Programmable from 1 to 99 seconds

• 90–250 VAC, 50 Hz

• 24 VDC (optional)

• Power Consumption: < 10 VA

• Thermocouple (R/S): ±0.5% of F.S.

• Other Inputs: ±0.1% of F.S.

• Open Sensor Indication: Displays “OPEN” for RTD & TC inputs

• Temperature Drift: <0.01% of F.S. / °C

• Response Time: <200 ms per channel

• DIN Standard

• Field Mount (IP-65)

• Flameproof (CMRI IIA IIB Certified)

Dimensions (DIN STD)

• 96 (H) × 192 (W) × 250 (D) mm

Mounting

• Flush mounting (DIN STD)

• Wall mounting (WP / FLP)

Weight

• Approx. 4 kg

• Temperature: –20°C to 55°C

• Humidity: 5% to 95% RH (non-condensing)