The Dytran 4123B is a 12-channel IEPE power unit and voltage gain amplifier designed to excite and condition signals from piezoelectric sensors in dynamic force and impact measurement systems. It supplies constant current excitation to IEPE sensors while decoupling DC bias and amplifying the sensor output through switch-selectable gain stages. The unit provides front-panel monitoring of any selected channel via BNC output, enabling real-time signal observation and fault detection across the measurement chain.
## Technical Specifications
• **Channels:** 12 IEPE sensor inputs
• **Constant Current Output:** 2–20 mA
• **Compliance Voltage:** +18 to +30 VDC
• **Voltage Gain:** ×1, ×10, ×100 (switch-selectable)
• **Max Bandwidth:** 6 kHz, 60 kHz, 100 kHz
• **Supply Voltage:** 115 V AC or 230 V AC (line-powered)
• **Physical Form:** 19-inch rack mount, 1.75-inch height, 5.5 pounds
## Key Features
• Simultaneous powering of up to 12 IEPE sensors
• 6-position rotary switch for channel selection and monitoring
• Front-panel BNC output for signal observation and diagnostics
• DC bias decoupling and AC signal amplification in one unit
• Compliance voltage range suitable for standard IEPE sensor operation
## Typical Applications
Dynamic force measurement, impact testing, and transient signal acquisition with IEPE accelerometers, force sensors, and pressure transducers in laboratory and field test environments.
## Compatibility & Integration
Accepts standard IEPE sensor connectors (10-32 coaxial). Integrates with Dytran by HBK accelerometers, force sensors, and other IEPE-compatible dynamic measurement devices. Rack-mountable alongside related signal conditioning and data acquisition equipment.
