Product Overview
The Flexem FR-A0400M Industrial Automation Module is a precision 4-channel analog input module engineered for demanding control systems. With 16-bit resolution and a customizable full-scale range, this module delivers accurate signal acquisition for voltage and current inputs. Its compact design and removable terminal block simplify integration into existing panels, making it a reliable choice for process automation, machine monitoring, and data acquisition applications.
When signal integrity matters, the FR-A0400M ensures consistent performance with a conversion precision of ±0.2% of full scale. Whether you are upgrading legacy I/O or building a new control cabinet, this module provides the measurement accuracy your system requires.
Technical Specifications
| Parameter |
Value |
| Input Channels |
4 |
| Output |
/ |
| Resolution |
16 bit |
| Input/Output Signal |
Voltage -10V~10V; Current 0~20mA |
| Full Range Value |
Customized (-30000~30000) |
| Conversion Precision (Full Scale Range) |
±0.2% |
| Maximum Input Signal Allowed |
Voltage: 30V; Current 30mA |
| Input Impedance |
Voltage >200K ohms; Current <250 ohms+5% |
| Wiring Structure |
Removable terminal block |
| Working Temperature |
-10~60℃ |
| Storage Temperature |
-20~70℃ |
| Environment Humidity |
5%~95%RH (Non-condensing) |
| Dimension |
111mm×18mm×76mm |
| Weight |
65g |
Key Features & Benefits
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High Resolution: 16-bit ADC ensures fine granularity for precise measurements.
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Flexible Input Range: Accepts both voltage (-10V~10V) and current (0~20mA) signals, covering common industrial sensors and transmitters.
-
Customizable Full Scale: Programmable range from -30000 to 30000 allows scaling to your specific engineering units.
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Robust Protection: Withstands up to 30V/30mA input overrange, protecting the module from accidental surges.
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Easy Installation: Removable terminal block simplifies wiring and maintenance.
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Compact Form Factor: 111mm×18mm×76mm and just 65g, ideal for space-constrained cabinets.
Real-World Applications
The Flexem FR-A0400M excels in environments where accurate analog data is critical. In a typical process control setup, the module reads temperature or pressure transmitter signals (4-20mA) and converts them to digital values for the PLC or DCS. Its customizable full-scale range lets you map 0-20mA directly to engineering units like 0-1000 PSI, simplifying scaling in the controller.
For machine monitoring, the module captures voltage signals from sensors such as load cells or position transducers. The high input impedance (>200K ohms) ensures minimal loading on the sensor, preserving signal integrity. In a retrofit scenario, replacing an older 12-bit module with the FR-A0400M can improve measurement resolution by 4x, leading to tighter process control and reduced scrap.
Installation & Setup Guidance
Before wiring, verify that the input signal type (voltage or current) matches the channel configuration. Use shielded twisted-pair cables for voltage inputs to minimize electromagnetic interference. For current inputs, ensure the loop is powered correctly and the module's input impedance (less than 250 ohms) is suitable for your transmitter. Connect wires to the removable terminal block, then plug it into the module. Tighten screws securely to avoid loose connections. After power-up, configure the full-scale range and input type via the host controller or configuration tool. Always observe polarity and respect the maximum input limits (30V/30mA) to prevent damage.
Maintenance & Reliability
The FR-A0400M is designed for long service life with minimal upkeep. Periodically inspect terminal connections for tightness and signs of corrosion, especially in humid environments (up to 95% RH non-condensing). Keep the module clean and free of dust, which can affect heat dissipation. Operating within the specified temperature range (-10~60℃) ensures stable performance. Because of its solid-state design, there are no moving parts to wear out, reducing downtime and maintenance costs. Regular calibration checks, typically every 12 months, will maintain the ±0.2% conversion precision.
Selection Guide & Purchasing Advice
When ordering the Flexem FR-A0400M, confirm that your controller supports the input signal types and resolution. This module is a drop-in replacement for many analog input modules with similar form factors. If you need multiple channels, consider purchasing several units; the compact size allows dense mounting. PLC Source PRO offers genuine Flexem FR-A0400M modules with fast shipping and competitive pricing. Contact our technical team if you have questions about compatibility or configuration.