3G Tech / HBS Equipment 700 Digital Amp / Time Meter

The 3G Tech / HBS Equipment 700 is a digital amplifier and time meter that measures current via external shunt monitoring and counts down pre-selected AMP-HOURS or AMP-MINUTES intervals. The instrument accumulates total AMP-HOURS or AMP-MINUTES and signals cycle completion through two programmable Form C relays. A bright six-digit LED display provides real-time readout of current and accumulated values. High-resolution analog-to-digital conversion with input filtering ensures accurate shunt signal processing. Non-volatile EEPROM memory preserves accumulated counts during power loss, provided power has been applied for a minimum of 5 seconds before shutdown.

Technical Specifications

• Display: Six-digit LED
• Current Measurement: External shunt monitoring
• Measurement Modes: Countdown (AMP-HOURS or AMP-MINUTES) and accumulation of total AMP-HOURS or AMP-MINUTES
• Relays: Two Form C relays, programmable for control and monitoring
• Input Impedance: High impedance shunt input
• Signal Processing: High-resolution A/D converter with input filtering
• Memory: EEPROM parameter storage with non-volatile data retention
• Control Inputs: Pins 1 & 2 (power), Pin 3 (input signal), Pin 4 (reset, resettable models only)

– Key Features

• Programmable countdown timer for amp-hour or amp-minute cycles
• Dual-mode accumulation tracks both cycle and total consumption
• High-impedance shunt input for direct current measurement
• AC/DC and DC Only operating models available
• Resettable configuration option with software-controlled memory clearing
• Minimum signal duration: 0.5 seconds (AC/DC) or 1 millisecond (DC Only)
• Reset signal duration requirement: Minimum 0.5 seconds after 5-second power stabilization
• Data persistence: Accumulated values retained in non-volatile memory

– Typical Applications

Industrial cycle monitoring, current accumulation tracking, electrochemical processes, battery testing, and time-dependent current-consuming operations requiring programmable relay actuation and data logging.

– Compatibility & Integration

Designed for external shunt-based current measurement systems. Two Form C relay outputs accommodate diverse control architectures. Pin-configurable inputs support both AC/DC and DC-only power supplies and signal processing requirements.