MARTINDALE ET4500 - 9.7 Voltage, frequency, and phase rotation; Phase Rotation Specifications; Voltage Measurement Specifications; Frequency Measurement Specifications

Martindale ET4000 / ET4500 Technical specifications
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9.7 Voltage, frequency, and phase rotation
9.7.1 Phase rotation
Nominal system voltage range ......... 100 V
AC
- 550 V
AC
Nominal frequency range .................. 15 Hz - 500 Hz
Result displayed ............................... 1.2.3 or 3.2.1
9.7.2 Voltage
Measuring range (V) Resolution (V) Accuracy
0 - 550 1
(2 % of reading + 2 digits)
Result type ........................................ True r.m.s. (trms)
Nominal frequency range .................. 0 Hz, 15 Hz - 500 Hz
9.7.3 Frequency
Measuring range (Hz) Resolution (Hz) Accuracy
5.00 - 9.99 0.01
(0.2 % of reading + 1 digit)
10.0 - 499.9 0.1
Nominal voltage range ...................... 20 V - 550 V
9.7.4 Online terminal voltage monitor
Measuring range (V) Resolution (V) Accuracy
10 - 550 1
(2 % of reading + 2 digits)