MI 3295 Step Contact Voltage Measuring System
Technical specifications
49
Noise cancelation
(50 Hz, 55 Hz and 60 Hz mode) ....... DSP filtering, - 64 dB @ f
MODE
± 5 Hz
Measuring refresh rate ..................... typical 2.6 s (50 Hz, 55 Hz and 60 Hz mode)
typical 1.5 s (TRMS mode)
Limit range (I) ................................... Off, 3
0 mA … 25.0 A
Manual range selection .................... 30 A, 300 A, 3000 A
Note:
In TRMS mode consider noise (residual current) of flex current clamps:
Range
Noise (residual current)
30 A
< 4 mV, equivalent to 0.12 A
300 A
< 1 mV, equivalent to 0.3 A
3000 A
< 1 mV, equivalent to 3 A
Do not measure close to other current-carrying conductors if possible. An external
magnetic field can cause an additional measurement uncertainty.
Clamps
External magnetic field
Additional uncertainty
Flex clamp (A1587)
5 A/m
(15 % of reading)
It is very important that the conductor should be at the center and perpendicular to
the measuring head.
10.7 General data
Station
Rated supply voltage .............................. 115/230 V AC (
10 %) / 50 or 60 Hz
Max. power consumption ........................ 750 VA
Overvoltage category ............................. CAT II / 300 V
Measuring category ................................ CAT IV / 50 V
Protection classification .......................... Class I
General protection of the instrument:
Fuse ....................................................... 2 x T 6,3 A / 250 V (5 mm x 20 mm)
Pollution degree ..................................... 3
Degree of protection ............................... IP 30
Display .................................................. 128 x 64 dots matrix display with backlight
Memory .................................................. 1000 memory locations
Current logger ........................................ 24 hours min
Communication interface ........................ RS232 (for communication with Meter only)
Dimensions (w×h×d)............................... 56.3 cm × 27.5 cm × 25.7 cm
Weight .................................................. 29.5 kg (without accessories)
Meter
Power supply voltage ............................. 9 V
DC
(6 x 1.5 V battery or accu, size AA)
Operation ............................................... typical 12h
