4
1.2
Characteristics
1.2.1
Transducer converts alternating current to unified output signal direct current (DC). Input
current ranges are: from 0 up to 25 A; from 0 up to 50 A; from 0 up to 100 А.
The output current range is from 0 up to 20 mA.
1.2.2
The load resistance range is from 0 up to 500
. Normal range of load resistance values is
from 200 up to 300
.
1.2.3
Limits of the intrinsic error are
0,5 % of fiducial value. Upper
value of output signal range (20 mA) is taken as a fiducial value.
1.2.4
Additional errors due to influencing quantities are given in table 1.
Table 1
Influencing quantity
Values
Limits of additional error, %
Ambient Air Temperature
- 30 to 50
C
0,4 for every 10 °С of
temperature variation
Relative Humidity
to 95% at 35 °С
0,9
Input signal frequency
45 to 65 Hz
0,5
Strength of external magnetic field with
frequency 45-65 Hz, A/m
400 А/m
0,5
Load resistance,
0 to 200; above 300 to
500 incl.
0,25
1.2.5
Limits of error due to 5 % harmonic distortion:
-
for 2-th, 4-th, 6-th, 8-th harmonic …….
1 % of the fiducial value;
-
for 3-th, 5-th, 7-th, 9-th harmonic …….
2 % of the fiducial value.
1.2.6
Set-up time of performance (heating-up time) is 10 min.
1.2.7
Output signal ripple amplitude is 0,2 % at most.
1.2.8
Transducer satisfies characteristics described in 1.2.3 if:
-
set-up (heating-up) time is expired (without regard to overall operation time);
-
one of output terminals is grounded;
-
transducer is being affected by sinusoidal vibration in accordance with ГОСТ 12997 for N2 Group.
1.2.9
Setting time of output signal for an input step is no more than 1 s.
1.2.10
Transducer remains operable in case if load circuit is broken for long time. In this case,
output voltage does not exceed 30 V.