| Input |
| AC voltage |
0 to 150 VAC RMS Continuous |
| AC current |
200 Amps RMS |
| Sample Rate |
15,360 per channel/second |
| Recording Channels |
2 voltage |
| 2 current |
| Accuracy |
| Voltage |
0.33% of full scale |
| Current |
1% of full scale |
| Power |
1 Watt |
| Phase Angle |
1 Degree |
| Power Factor |
±0.01 |
| Displacement PF |
±0.01 |
| Information Storage |
| RAM |
2 MB (Battery Backed) |
| Flash |
8 MB |
| Capacity |
| Summary Data |
Over 1 year |
| Event Data |
500 records |
| Significant Change Data |
1,000 records |
| Flicker Data |
1,000 records |
| Communications |
| Local |
USB 2.0 Cable, Bluetooth® (Bluetooth® and Cell Modem options are mutually exclusive) |
| Remote |
Internal CDMA Cell Modem |
| Stripcharts (4 hours to over 1 year) |
Voltage, Current, Power Factor, Displacement PF, Real Power, Reactive Power, Apparent Power, Total Power, Phase Angle, Harmonics, IFL Flicker, Frequency, Demand |
| Controls |
| Stripchart settings |
1 cycle to 4 hours |
| Significant change |
1V to 8V, in 1V steps |
| Flicker settings |
User defined or comform to IEEE 1453/IEC 61000-4-15, and IEEE Std. 141 |
| Battery voltage check |
Automatic |
| Power Requirements |
| Recording Load |
Less than 2.5 Watts |
| Environmental |
| Operating Temp |
-20° to 135°F |
| Shock |
60Hz to 2KHz, acceleration 25G |
| Vibration |
10Hz to 60Hz, amplitude 1.8mm |
| Physical Dimensions |
| Size |
4 5/8" x 6 3/4" |
| Weight |
3.6 lbs. |
| Battery Ride Through |
| This battery circuit allows the Guardian to operate with no input voltage for up to 1/2 hour. This allows it to measure down to 0 volts on all channels during power outage periods. |
| Harmonics |
| Voltage |
measures to the 51st |
| Current |
measures to the 51st |
| Measures |
Magnitude |
| Total Harmonic Distortion (THD) |