1. General
PZ96L-3EH is one kind of power quality analyzer. They comply EN 61326:2006 and EN 61010-1:2001.
- Communication and programming via optical interface, or remotely via RS485 output
- Up to 4DI & 2DO configurable, one DO can be used as Alarm.
- 16 SOEs

2. Technical Feature
- Measurement: Crest Factor,THFF,K Factor,Unbal Factor, Volt PEAK, Volt VECTOR, Current VECTOR

CREST FACTOR: The Crest Factor is equal to the peak amplitude of a waveform divided by the
RMS value. The purpose of the crest factor calculation is to give an analyst a quick idea
of how much impacting is occurring in a waveform.

THFF (Telephone Harmonic Form Factor):
The harmonic interference may cause noise in the system and inuence the quality of communication; our hearing and the telephone cannot respond well to the 50Hz current and
voltage but can respond better to about 1KHz current and voltage. In Europe, CCITT detects
harmonic interference to telecom with Pn, then gures it with THFF. It is 0 with no harmonic.

K-factor is a weighting of the harmonic load currents according to their effects on
transformer heating, as derived from ANSI/IEEE C57.110. A K-factor of 1.0 indicates a linear load (no harmonics). The higher the K-factor, the greater the harmonic heating effects.

UNBAL FACTOR: (Unbalance factor)
To look at the current and voltage unbalance factor. In a 3-phase distribution, if the current or
voltage RMS are not the same or the dierence between a 3 phase angle is not 120 degrees, we call the phase voltages or current unbalance. The unbalance voltage or current of 3-phase can be divided into positive component, negative component and zero component.

V PEAK: (The Peak Voltage)
Peak voltage is the highest level of volts from an alternating current. For example, in the UK the mains supply to a house is 230RMS. 230 volts is the average (simplied) you will get from the AC supply. But in reality the AC wave switches between -320 and 320 volts. So 320 is the
peak voltage.

V VECTOR: (The voltage vector)
Widely-used in European standards, the first definition originates from the theory of Symmetrical Components which mathematically breaks down an unbalanced system into three balanced systems

I VECTOR: (The current vector)
To look at the positive component, negative component and zero component.
The Screen displays: +I1, -I2, N.

- Network: 1P2W, 3P3W, 3P4W
- Frequency 45 ~ 65Hz
- Normal: AC 100V, 400V; Overloading: 600V(continuous), 1000V / 30s; Consumption: < 0.2VA
- Current: AC 1A, 5A; Overloading: 6A(continuous), 50A /10s; Consumption: < 0.2VA
- Accuracy Frequency 0.01Hz, reactive energy 1 class, others 0.5 class
- Display: LCD
- Power supply: AC/DC 85~270V; consumption: < 4VA
- Isolation: Power / current input / voltage input: AC2kV/1min;Power / logic inputs / RS485: AC1.5kV/1min;
Inputs / outputs / housing > 5MΩ
- Working T: -20C ~ +55C; Storing T: -30C ~ +70C
- Relative humidity: 5% ~ 95% Non-Condensing;
- Altitude: < 2500m
- Harmonics Individual to 31st order
- Norms:
IEC61000-4-2: 1995 Electrostatic discharge immunity test Level 3
IEC61000-4-3: 1995 Radiated, radio-frequency, Level 3
IEC61000-4-4: 1995 Electrical fast transient pulse immunity test Level
IEC61000-4-5: 1995 Surge immunity test Level 3
3. Options:
- /P: Pulse output Opt coupler pulse output
- /C: Communication RS485 (Modbus-RTU)
- /K: Logic input (DI) 4 drying contact inputs, with +5V power; Logic output (DO) 2 NO contacts (AC 250V/3A,
DC 30V/3A)