12.1 Product Specifications
180
Input Specifications
Measurement line type
One single-phase 2-wire (1P2W), single-phase 3-wire (1P3W), three-phase
3-wire (3P3W2M,3P3W3M) or three-phase 4-wire (3P4W) plus one extra in-
put channel
Input channels
Voltage: Four channels U1 to U4 (extra channel U4 can measure AC or
DC)
Current: Four channels I1 to I4
Input methods
Voltage: Isolated inputs and differential operation
Between U1,U2 and U3: these channels are not isolated from one
another
Between U1 to U3 and U4: channel U4 is isolated
Current: input is isolated by the clamp-on sensor (voltage input)
Input resistance (50/60 Hz)
Voltage: 4 MΩ ±10% (differential input)
Current: 200 kΩ ±10%
Measurement method
Simultaneous digital sampling of voltage and current
PLL synchronization (during instantaneous low period of PLL synchroniza-
tion source, switches to a fixed clock, with no sampling gap during switch-
ing)
PLL synch channel source
One of voltages U1, U2 or U3
PLL synch frequency range
42.5 Hz to 69 Hz, 360 to 440 Hz
Sampling frequency
For calculations (including DC measurements):
256 per cycle (at 50Hz or 60 Hz)
256 per 8 cycles (at 400 Hz)
For harmonic and inter-harmonic analysis:
2048 per 10 cycles (50Hz)
2048 per 12 cycles (60Hz)
2048 per 80 cycles (400 Hz, harmonics only)
For transient overvoltage (impulse): 2 MHz
A/D converter resolution
For calculations (including DC measurements): 16 bits
For transient overvoltage (impulse): 12 bits
Compatible clamp
sensors
0.5 Vrms output or more for full-scale current (0.5 Vrms recommended)
Output-to-input ratios of 0.1, 1, 10 or 100 mV/A
Basic Specifications
Backup lithium battery life
Lithium battery to back up clock and settings, approx. 10 years (reference at
23
°C, 73°F)
Clock functions
Auto calendar, auto leap year, 24-hour clock
Real-time clock accuracy
±0.3 s/day or better (instrument on), ±3 s/day or better (instrument off)
Internal memory data
capacity
13 MB
Maximum recording period
1 month (when using internal memory)
Maximum recordable events
100 events (when using the internal memory) (when using the PC card, up
to 1000 events)
External control terminals
External event input, external event output
Power supply
9458 AC ADAPTER (SINO-AMERICAN SA 60-12 V) (12 VDC ±5%, 4.5 A)
Rated voltage: 100 to 240 VAC (a change in voltage of ±10% taken into con-
sideration), 50/60 Hz, maximum rated current: 1.2 A
9459 BATTERY PACK(Sanyo 6HR-AU Ni-MH) for backup during power off
Recharge function
Using the 9458 AC ADAPTER or 9459 BATTERY PACK to recharge while
the 3196 is operating.
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