Charge Plate Monitor CPM 374

Description

Charge Plate Monitor CPM 374 – Precise Electrostatic Measurement

The Charge Plate Monitor CPM 374 accurately measures voltage potential on its integrated plate electrode using the fieldmill influence principle. This device is ideal for determining static decay time, measuring how quickly a charge dissipates from a higher voltage threshold to a lower one.

Key Features

• High Precision & Sensitivity:
  The CPM 374 features an integrated timer, a high-voltage unit, and an electro-fieldmill sensor, ensuring a high impedance of 10¹⁵ Ω for accurate electrostatic voltage and decay time measurements.
• Compliance & Safety:
  • Meets EN 61340-5-1 and EOS/ESD S.3.1 standards.
  • The high-voltage unit is touch-safe, protected by a high-ohmic resistor.
• Portable & User-Friendly:
  • Battery-powered with an optional 230/115V AC power supply for flexible use.
  • Compact design makes it ideal for industrial applications.
  • Simple menu-driven operation using two switches.
  • Clear 2-line LCD display for easy parameter monitoring.

Technical Specifications

• Dimensions: 152mm × 152mm × 152mm
• Weight: Approx. 990g
• Display: 16-digit, alphanumeric, 100mm × 24mm LCD
• PC Interface: Serial port (9-pin SUB-D connector) for data transfer
• Power Supply:
  • Internal: 7.2V / 1300mAh rechargeable battery (approx. 4 hours continuous use)
  • External: 12V DC / 750mA mains adapter
• Charging:
  • Full charge time: Up to 14 hours
  • Charging rate: 150mA (battery mode) / 600mA (mains operation)
• Auto Power-Off: 5 minutes after inactivity

Scope of Delivery

• Conductive plastic transport case with antistatic foam insert
• 230V / 50Hz mains adapter (12V DC / 750mA)
• Grounding cable with alligator clip
• User manual
• Three spacers for horizontal measurement
• Teflon-coated measuring line with banana plug
• Serial PC cable
• CPM software (on 3.5” floppy disk)
• Calibration certificate

The CPM 374 is a reliable solution for electrostatic measurements, offering precision, mobility, and compliance with industry standards.