SC-204

Product Description

SC-204 Process Scanner is a microcontroller-based multi-channel monitoring instrument designed for comprehensive industrial process measurement. It supports 16 dedicated input channels or 8 universal input channels, accepting RTD, thermocouple, 4–20 mA, voltage, and mV signals. The scanner features clear LED displays for channel number, process value, and engineering units, enabling easy real-time monitoring. Advanced functions such as cold junction compensation, open sensor indication, and software calibration ensure accurate and reliable measurements. It offers individual alarm outputs per channel, optional common alarm, and relay outputs for high and low limits. With RS-485 MODBUS RTU communication, long-term memory backup, and availability in DIN standard, IP-65 field mount, or CMRI-certified flameproof enclosures, the SC-204 is ideal for complex industrial process monitoring.

Product Parameters

Configure the transmitter and electronics based on application, environment, and compliance requirements.

Performance Characteristics

No. of Inputs	16 Nos.
Input	1) Dedicated (16 Channel)
	a) RTD (PT-100/PT-200) 2 or 3 Wire b) Thermocouple (J / K / R / S/E/B/T Types)
	c) mA ( 4-20 mA / 0-20 mA) d) Voltage (0-5 V / 1-5 V/0-100mV DC)
	2) Universal (8 Channel)
Display	LED Display for Process Value, Channel Number & Engineering Unit
Range	1) Programmable: -999 to +9999 for mA & Voltage
Range	2) Fixed : for all types of RTD & Thermocouple
Display Scan Time	Programmable from 1 to 99 seconds
Power Supply	90 - 250V AC, 50 Hz, 24 VDC
Power Consumption	< 10 VA
Accuracy	1) For R, S Type Thermocouple, better than ± 0.5% of F. S.
Accuracy	2) For rest inputs, better than ± 0.1% of F. S.
Open Sensor Indication	‘OPEN’ on Display for RTD & Thermocouple input
Temperature Drift	< 0.01% of F. S. per °C change
Response Time	< 200 mSec per channel
Electronics Enclosure	1) DIN STD. 2) Field Mount IP-65 3) Flameproof (CMRI IIA IIB Certified)
Dimensions	96 (H) x 192 (W) x 250 (D) in mm approx. for DIN STD. Enclosure
Mounting	Flush of the Panel for DIN STD & Wall mount for WP / FLP Enclosure
Weight	4 kg (Approx.)
Ambient Temperature	Temperature -20 to 70 °C / Humidity 5 to 95% non condensing
OPTIONAL
Individual Alarm Output	Potential free Relay Contacts for High & Low (1 c/o, 1 Amp. @ 230V AC) Per Channel
Common Alarm Output	Potential free Relay contacts - for high & low (1 c/o, 1 Amp @ 230V AC)
Communication Port	RS 485 supporting MODBUS RTU Protocol
(In case of optional features, enclosure size may change)

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Applications

Electronet instruments are widely deployed across multiple industries and utilities for reliable monitoring and control of critical process parameters.

Industry	Key Applications
Process Industries	Multi-point monitoring of temperature (RTD/TC), current, and voltage signals across process units
Chemical & Petrochemical	Scanning and display of multiple process variables with individual alarms for safe plant operation
Power Plants	Monitoring of boiler, turbine, and auxiliary system parameters such as temperature and mA signals
Oil & Gas (Non-custody Transfer)	Multi-channel process variable indication with alarms in utility and process areas
Cement & Mining	Centralised monitoring of multiple temperature and analog inputs from plant equipment
Pulp & Paper Industry	Scanning of process temperatures, pressures (via transmitters), and control signals
Pharmaceuticals	Accurate monitoring of critical process temperatures and analog signals
Food & Beverage	Multi-point temperature and process variable monitoring in production and utility systems
OEM & Skid Manufacturers	Integration into packaged systems requiring 8/16 channel input scanning with alarms and MODBUS
Instrumentation & Control Panels	Panel-mounted process scanner with LED indication, alarms, printer port, and RS-485 MODBUS communication