Technical Specifications - METREL A 1446 Manual Del Usuario

8 Technical specifications

FEATURES
Length of the sensor
Measuring range
Overscale
Sensitivities
Bandwidth
Accuracy
Linearity (10 % to 100 %)
Position sensitivity
Temperature dependency
External fields
Noise (residual current)
Minimum load impedance in
output
Phase error
Crest factor
Electrical Security
EN 61010)
(
Environment Conditions
Weight of flexible sensor
Water and dustproofing
1: Limits of bandwidth corresponding to a relative gain > - 3 dB
2: Reference conditions: 45 Hz – 65 Hz, conductor is in the centre and perpendicular to
the measuring head, temperature between 15 ºC to 25 ºC; 10 k of load impedance;
laboratory environment electrical noise free.
3: Error of reading in reference conditions.
4: Expression of error measurement in reference conditions
error % = ( I residual / I measured ) x 100 + linearity + Accuracy
5: Distance between cable and clamp coupling should be 25 mm (1").
6: Adjacent conductor ≥ 20 cm or 8 inch from head. (<40 A/m)
7: No additional error in range 15 ºC – 25ºC,
 for higher temperatures: Temp. error = (Temp - 25ºC ) *
 for lower temperatures: Temp. error = (15ºC - Temp ) *
NOTES
90 cm
60 A / 600 A / 6000A ac rms
100A / 1000A / 10000 A sinus
16.7 mV / A; 1.67 mV / A; 0.167 mV / A
1 10 Hz up to 3 kHz
2,3,4 +/-1 %
2,3,4 +/-0,2 %
5 +/-2 % of full scale
7 +/-0.02 % of reading / ºC
6 +/- 1% of full scale
2,4 <4 mV / <1 mV / <1 mV, equivalent to 0.24 A
(range 60 A) / 0.6 A (range 600 A) / 6 A (range
6000 A)
2 10 k (internal output is 150 )
<1° @ 50 Hz
<10° @1.5 kHz
Up to 2.35
Double insulation
1000 V- Cat III
- Contamination Deg. 2
Sensor: Usage and storage: -20 to 85 ºC
and 15 % to 85 % RH (without condensing)
Module: Usage and storage: -20 to 70 ºC
and 15 % to 85 % RH (without condensing)
< 350 g
Sensor: IP 64 Module: IP 40
12
Flex current clamps A 1446
DESCRIPTION
Temperature dependency
Temperature dependency