The PMM-1 power multifunction measuring instrument is a portable, battery or line operated instrument designed to measure AC primary and secondary currents, voltage power, reactive power, phase angle, and frequency of single and three-phase systems.

• Simultaneous measurement and display of all three-phase system parameters
• Accurate phase angle measurement at low current levels
• Versatile, menu-driven instrument with built-in timer and data-logging
• High-speed measurement mode

A high-speed recording feature can capture starting currents of three-phase motors, and all measured values are displayed on a large, easy-to-read graphic display. The PMM-1 is ideal for general electrical systems maintenance, electrical machine repairs, protective relay testing, or monitoring power at electrical service entrances.

The PMM-1 is designed to perform fast, accurate checking and testing of protective relays and meter installations during commissioning and routine maintenance. The unique firmware, combined with a built-in microprocessor-based timer, is specifically designed to ease testing and commissioning of protective relay systems, including induction unit pickup and timing tests.

The internal timer responds to a variety of start and stop gates, including the application of AC or DC voltage, and opening or closing of dry contacts.

The PMM-1 is a menu-driven instrument equipped with data retention and data-logging capabilities. It can automatically store measured data at user-defined intervals from one minute to 60 minutes. The date and time can be set to start and stop data logging.

Up to 286 three-phase data sets can be stored in non-volatile memory, providing 24 hours (1 day) of data logging at 5-minute intervals or 72 hours (3 days) using 15-minute intervals. This feature enables comprehensive load and voltage surveys.

The portable PMM-1 allows current measurements to be made without disconnecting current wires through the use of clamp-type current transformers. Measured quantities can be printed to an external printer or downloaded to a PC for further analysis via RS-232 data and parallel printer ports.

• One-stop service from manufacture to shipping
• Inquiries related to our products or prices replied within 24 hours
• Well-trained and experienced staff to answer all inquiries in fluent English
• Distributor support offered for unique designs and current models
• Protection of your sales area, design ideas, and private information

• Can you ship orders to Canada or Australia?
  Yes, we ship orders worldwide.
• What delivery methods do you use and what is the delivery time?
  We ship by EMS, DHL, FedEx, UPS, TNT with tracking numbers. Usual delivery time is 4-7 workdays.
• What is your payment term?
  T/T payment before shipment.
• How can I ask any other questions?
  You can contact us online or leave messages below.