2-Wire Isolated Temperature Transmitter - SCC633

The SCC633 is a high-performance 2-wire isolated temperature transmitter designed for reliable temperature measurement and signal transmission in demanding industrial process applications.

With its universal input capability, SCC633 supports a wide range of sensors and input signals, including thermocouples, RTDs, resistance, millivolt signals and optional 4–20 mA input. The transmitter converts the measured input into a 2-wire, loop-powered 4–20 mA output, with support for HART 5 and HART 7 communication.

Optical isolation between the input and output helps improve noise immunity and signal integrity. Configurable sensor-break detection, wide supply voltage capability and flexible programming make SCC633 suitable for a broad range of industrial measurement and control applications.

Why Choose Radix SCC633?

One Transmitter for Multiple Sensor Types

SCC633 provides universal input support for thermocouples, RTDs, resistance, linear voltage and optional 4–20 mA signals, reducing the need for different transmitter models for different sensor types.

Reliable Signal Isolation

Optical isolation between the input and output provides enhanced protection against electrical interference and helps maintain reliable signal transmission in industrial environments.

HART Communication

With HART 5 and HART 7 compatibility, users can configure and communicate with the transmitter using standard HART communicators.

Flexible Configuration

Input type, measurement range, unit and other parameters can be configured through HART communicators, USB interface and Radix handheld configurator.

Suitable for Industrial & Hazardous Areas

The flameproof enclosure and specified hazardous-area certification make SCC633 suitable for demanding industrial installations.

Better Fault Detection

Built-in sensor-break detection allows the output to be configured to either upscale or downscale during sensor failure.

Wide Supply Voltage Range

SCC633 supports a wide supply range, making it convenient to integrate into different industrial control systems.

Unique Selling Points (USP) of Radix SCC633

Universal input for Thermocouple, RTD, Resistance, mV and optional 4-20 mA
2-wire loop-powered 4-20 mA output
HART 5 & HART 7 communication
Optically isolated input and output
Radix HART Utility available for advanced configurations and settings
Configurable sensor-break detection
Automatic cold junction compensation for thermocouple inputs
User-programmable measurement range and engineering unit
Dual-row LCD display option with backlight
Multiple configuration options: HART, USB and handheld configurator
Flameproof enclosure with IP66 protection
Suitable for Zone 1/Zone 2 gas and Zone 21/Zone 22 dust applications

Brief Specifications of Radix SCC633

Parameter	SCC633 Specification
Product Type	2-Wire Isolated Temperature Transmitter
Input	Universal Input
Thermocouple	B, E, J, K, N, R, S, T
RTD	Pt100, Pt500, Pt1000, Cu53, Ni100, Ni500, Ni1000
RTD Connection	2-wire, 3-wire & 4-wire
Resistance	0-400 Ω, 0-2000 Ω, 0-5000 Ω
Linear Voltage	-10 to 75 mV, -100 to 150 mV, -100 to 500 mV
Current Input	4–20 mA, optional
Output	2-wire, 4–20 mA
Output Resolution	1 µA
Response Time	Approx. 500 ms
HART	HART 5 & HART 7
Display	Dual-row LCD, optional
Sensor Break	Upscale ~22.0 mA / Downscale ~3.8 mA
Isolation	Up to 1500 VAC, 1 minute
Supply	9-45 VDC; 12-45 VDC with display & backlight
Accuracy	Depends on input type and configured span
CMRR	>120 dB
Ambient Operation	-20 to 85°C without display
Humidity	0–95% RH, non-condensing
Enclosure	Light Alloy (LM6)
Protection	IP66
Mounting	2" pipe / wall mounting
Hazardous Area	Ex d / Ex tb certified configurations

Key Features of Radix SCC633

Universal Input

SCC633 supports a broad selection of industrial temperature and analog input signals:

Thermocouple: B, E, J, K, N, R, S, T
RTD: Pt100, Pt500, Pt1000, Cu53, Ni100, Ni500, Ni1000
Resistance
Linear mV
Optional 4-20 mA input

Isolated 4-20 mA Output

Provides a standard 2-wire, loop-powered 4–20 mA output for easy integration with PLCs, DCS systems, indicators and other process-control equipment.

HART Communication

Supports HART 5 and HART 7, enabling digital configuration and communication over the analog 4-20 mA loop.

Sensor Break Detection

Detects sensor failure and provides configurable upscale or downscale output, allowing the control system to identify sensor faults.

Automatic Cold Junction Compensation

For thermocouple measurements, the transmitter provides automatic cold junction compensation.

Configurable Parameters

Users can configure parameters including input type, measurement range, engineering unit, damping, sensor-break detection and other HART parameters.

Display & Local Configuration

An optional dual-row LCD display and built-in keys provide local indication and parameter configuration. The keys can be operated after opening the enclosure in a safe area.

Multiple Programming Options

SCC633 can be programmed using:

Standard HART communicator
Radix DCC503 USB-to-HART converter
Radix HHC201 handheld HART programmer
USB interface and utility software

Typical Applications

SCC633 can be used wherever temperature or compatible analog process signals need to be converted into a reliable 4-20 mA industrial signal.

Process temperature monitoring
Industrial furnace temperature measurement
Boiler and thermal process monitoring
HVAC and utility systems
Chemical process temperature measurement
Oil & gas process monitoring
Pharmaceutical process equipment
Power plant instrumentation
Tank and vessel temperature monitoring
Heat-treatment systems
Industrial machinery temperature monitoring
PLC/DCS-based process automation

Industries

Oil & Gas

Temperature monitoring in process equipment, pipelines, vessels and other field instrumentation.

Chemical & Petrochemical

Reliable temperature measurement for process control and monitoring.

Power Generation

Suitable for temperature monitoring in boilers, auxiliary systems and industrial power equipment.

Pharmaceuticals

Useful for process temperature measurement where reliable signal transmission and configurable instrumentation are required.

Food & Beverage

Suitable for temperature monitoring across industrial processing and utility systems.

Manufacturing

Can be integrated with PLC and DCS systems for machine and process temperature monitoring.

HVAC & Building Services

Suitable for temperature measurement and transmission in industrial HVAC and utility applications.

Steel & Metal Processing

Designed for demanding industrial temperature measurement environments.

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2-wire Temperature Transmitter, Isolated, Flameproof

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