Overview

The Guardian was designed with engineers in mind. It’s weatherproof, durable, powerful, and easy to use –everything you need in a Power Quality Recorder. Now with larger memory, CBEMA/ITIC, Advanced Waveform capture, and more! For your peace of mind, every device is thoroughly tested for pinpoint accuracy and comes with a comprehensive calibration certificate.

Features:

• Cell communication and USB (Optional)
• WiFi Hotspot and USB (Optional)
• Up to 1 GB internal memory

Unrivaled Communication Options:

• Cell Modem (Optional)
• WiFi (Optional)
• USB 2.0

Specs

Inputs

AC Voltage 0 to 150 per channel
AC Current 200 Amps RMS
Sample Rate 256 samples/cycle/channel

Channels

Voltage 2 channels
Current 2 channels

Measured Quantities Per Cycle

RMS Voltage Volts
RMS Current Amps
Real Power Watts
Apparent Power VAs
Reactive Power VARs
Phase Angle Degrees
Power Factor Watts/VA
Displacement PF cos (phase angle)
Power Usage kWh, kVARh, kVAh

Accuracy

Voltage 0.33% of full scale
Current 1.0% of full scale
Power 1.0% of full scale
Phase Angle 1.0°
Power Factor ±0.02
Displacement PF ±0.02

Power Fail Operation

The recorder can operate without any input voltage for up to 1 minute. This allows it to to send alerts and messages during an interruption.

Harmonics

Voltage to the 51st
Current to the 51st
Measures Magnitude, phase, THD

Communications

Standard USB
Cell modem (Optional)
WiFi (Optional)

Information Storage

Data Storage 16 MB (Standard); 128 MB, 512MB or 1 GB (Optional)
Significant Change 1000 records
Flicker 1000 records

Record Settings

Interval Graphs 1 cycle to 4 hour interval, user selected, stop-when-full or wrap-around memory modes
Significant Change 1V to 8V in 1V steps
Flicker Settings User-defined, or conform to IEEE 1453/IEC 61000-4-15, and IEEE Std. 141
Waveform Capture Voltage and current threshold, periodic capture, waveshape, event cross triggers

Power Supply Requirements

Power Consumption Less than 5 watts

Environmental

Operating Temp -20°F to +135°F
Shock 60 Hz to 2 kHz, acceleration 25G
Vibration 10Hz to 60Hz, amplitude 1.8mm

Physical Dimensions

Size 4.625” L x 6.75” W
Weight 2.1 Lbs

Downloads

Manuals & Instructions

• Guardian Manual

Software & Drivers

• USB Device Driver (Windows Vista, 7, 8, 10, and 11)
• ProVision 1.91.8990
• USB Device Driver v1110 (Windows XP Only)

Firmware

• Latest WinScan Firmware
• Latest Provision Firmware

Documents

• How the Cell Guardian Reduces Truck Rolls Infographic

Specification Sheet

• Guardian Spec Sheet

White Papers

• Introduction to PQ Canvass
• Voltage Unbalance with Canvass
• Approaching Power Quality Monitoring Site-Work
• Using Canvass to Monitor Photovoltaic Systems
• Hardware for Power Quality and Distribution Monitoring
• Types of Boomerang Units
• The Complete RMS Voltage Picture
• Comparison of Eagle 440 and Revolution PQ Analyzers
• Guardian vs iVS 2SXplus Form and Function
• Understanding Socket Recorder Form Factors
• Per Unit Graphing with Canvass
• Two Minute Countdown
• Analyzing Apparent and Reactive Power Using Canvass
• UDP vs TCP on a Cellular Network
• Cell, WiFi, and More with the New Cell Guardian Meter Socket Recorder
• Disconnecting a Power Quality Recorder
• Getting Started with the 3-Phase Boomerang
• Photovoltaic Monitoring with Canvass
• Using Bluetooth with PMI Recorders
• Voltage Optimization with the Boomerang and Canvass

• Detecting Loose Neutrals
• Using PQ Canvass
• Ferroresonance and Power Quality
• Recommendations for Voltage Sags
• Measuring Frequency with PMI Recorders
• Configuring Alerts with a Guardian in PQ Canvass
• Introduction to PQ Canvass
• IEEE 519 Harmonics in Residential Locations
• Adjusting Waveform Capture Sampling Rates
• Motor Start-Up from All Angles
• Quantifying Residential Voltage Sags
• Understanding RMS Measurements
• Voltage Swell from Recloser Operation
• Power Flow: Consumption vs. Generation
• Voltage Notching in IEEE Std. 519-2014
• Approaching Power Quality Monitoring Site-Work
• Hardware for Power Quality and Distribution Monitoring
• Sampling Rate in PQ Recorders
• New Graph Templates for Flicker Analysis
• Understanding IEEE IEC Flicker Processing
• Increasing Range When Using Bluetooth
• Bluetooth Security
• PC Memory Requirements for the Revolution and Vision
• ProVision Settings for Wireless Communications
• ProVision Settings for Wired Communications
• Guardian vs iVS 2SXplus Form and Function
• Two Minute Countdown
• Calculating Interharmonics with Raw Waveform Data
• New ProVision Release for Handling Large PQ Recordings
• THD Waveform Capture Triggering
• CBEMA Graphs Revealed
• Wireless Power Quality
• Cybersecurity and Cell Communications with the Guardian, Revolution, & Boomerang
• Power Quality Recorder Setup Basics (Part 2)
• Power Factor Correction Capacitors and Harmonics: How PFC Capacitors Affect Harmonic Levels
• Cell, WiFi, and More with the New Cell Guardian Meter Socket Recorder
• Flicker Investigation Strategy
• Disconnecting a Power Quality Recorder
• Estimating THD with Power Factor Histograms
• Understanding PMI Data Record Types – Part 1
• Introduction to Harmonic Bar Charts
• Using Bluetooth with PMI Recorders
• Understanding IEEE Flicker, IFL, Pst, Plt

Videos