Overview
The FMS EMGZ306A analog tension amplifier is a compact, single-channel measuring amplifier for accurate force and tension measurement in industrial automation. The EMGZ 306A Series is a single channel analogue tension measuring amplifier with capability to connect two force sensors. All FMS measuring amplifiers are enabled to accept a 24 VDC supply. The unit requires no programming and is ideal for OEMs and system integrators who need straightforward signal conditioning for web tension control, converting machinery, and packaging applications.
Key Features
- 20-turn trimmers for easily accessible front-panel adjustment; standardized ±10 V tension output and 0…20 mA or 4…20 mA current output switchable by jumpers
- No programming required, galvanically isolated, protected against electrical noise, DIN rail mount, easy cabinet mounting
- Dual force sensor input capability for redundant or multi-point tension measurement
- Integrated lowpass filter to eliminate faulty signal variations from unbalanced rollers and machine vibrations, effective on both tension and current outputs
- Optional 10 VDC sensor supply voltage and compound-filled versions with additional vibration protection for rotating applications
Technical Specifications
The EMGZ306A is designed as a general-purpose signal conditioner with precision instrumentation amplifier architecture:
- Input: Wheatstone bridge (strain gauge / load cell compatible)
- Excitation: Regulated voltage supply to sensors
- Gain range: 500 to 5000 (20-turn potentiometer adjustment)
- Output voltage: ±10 VDC (rail-to-rail)
- Output current: 0–20 mA or 4–20 mA (jumper-selectable, factory default 4–20 mA)
- Operating temperature range: −10 to 60 °C (14 to 140 °F)
- Form factor: DIN rail mount (35 mm standard)
- Power supply: 24 VDC ±10 %
- Signal isolation: Galvanic isolation for noise immunity
Typical Applications
The FMS EMGZ306A is widely used in:
- Web tension control and measurement in converting, paper, textile, and plastic film machines
- Strip and coil tension monitoring in metal processing and coating lines
- Yarn and fiber tension regulation in textile machinery
- Material tension feedback for printing, laminating, and packaging machinery
- General industrial force measurement with PLC or analog monitoring instrumentation
Compatibility & Replacements
Compatible With
- FMS force sensors and load cells with strain gauge bridges
- Any PLC, industrial controller, or analog signal monitoring device accepting voltage or current signals
- Analog instrumentation, displays, and data acquisition systems
- Industrial automation platforms requiring 4–20 mA or 0–20 mA input
- Standard 35 mm DIN rail cabinets and enclosures
Replaces / Drop-In Replacement For
The EMGZ306A is the current production analog tension amplifier in the FMS product line. Earlier versions may include EMGZ306 (without “.A” designation). Verify compatibility with your system integrator before ordering if replacing legacy units. FMS also offers variants such as EMGZ306A.10V (with 10 VDC sensor supply) and EMGZ306A.CAL (calibration version without weight).
Works With
- Standard 4–20 mA and 0–20 mA analog input modules on all major PLC platforms (Allen-Bradley CompactLogix, ControlLogix, Siemens S7, Mitsubishi FX, Omron, etc.)
- Analog voltage input 0–10 VDC or ±10 VDC cards
- Industrial HMI and SCADA systems with analog signal monitoring
- Standard 24 VDC power supplies and DIN rail installations


















