РА1.007.001РЭ-001
20
PARMA Ltd.
7
DEVICE VERIFICATION (CHECK OF CALIBRATION)
7.1
Standardized Methrological Characteristics
7.1.1
Effective Range:
−
Effective value of alternating voltage, V
0-460.0
−
Direct voltage, V
0-460.0
−
Effective value of alternating current, A
0-10.00
−
Voltage-voltage, current-current, voltage-current phase shift, deg-
180 - +180
−
Frequencies of voltage and alternative current strength, Hz 45-65
7.1.2
Limit of permissible relative measurement error:
−
Direct voltage, %
±[1+0.1(Ur/Um-1)]
−
Effective value of alternative current, %
±[1+0.1(Ur/Um-1)]
−
Effective value of alternative current, %
±[1+0.1(Ir/Im-1)]
−
Frequencies of voltage and alternative current, % ±0.1
Limit of permissible reduced error of measurement:
−
Voltage-voltage, current-current, voltage-current (with the voltage of
more than 30 V and current of more than 100 mA) phase shift, %
±1
7.2
Operations of Verification
7.2.1 Operations carried out during Initial and Periodical Verifica-
tion are presented in table 1.
Table 1
РА1.007.001РЭ-001
9
PARMA Ltd.
4.4
Electric strength and insulation resistance
4.4.1 Electric strength and insulation resistance conforms to GOST
26104 requirements.
4.4.2 Insulation resistance between short-circuits or equivalent cir-
cuits, insulated from the case of the device, on the one hand, and the other cir-
cuits accessible for external touch and device case, on the other hand, are no
less than 2.6 MW.
4.4.3 Electric insulation between network circuits and equivalent cir-
cuits can withstand test voltage of effective value of 2 kV, frequency of 50 Hz
during 1 minute without damage.
4.4.4 Electric insulation between network circuits and equivalent cir-
cuits and the case of the device can withstand test voltage of effective value of
4 kV, frequency of 50 Hz during 1 minute without damage.
4.5
Service requirements in overload conditions
4.5.1
The device can withstand overload of 2*Us voltage during 1 minute,
where Uk is a final value of a measured voltage range.
4.5.2
The device can withstand overload of 2*Is current during 1 minute,
where Ik is a final value of range of a measured strength of current.
4.6
Technical data
4.6.1
Guaranteed technical data
Range of measurement:
−
Effective value of alternating voltage, V
0-460.0
−
Direct voltage, V
0-460.0
−
Effective value of alternating current, A
0-10.00
−
Voltage-voltage, current-current, voltage-current phase shift, deg-
180 - +180
−
Active (reactive) power, W (VAr)
0-4600
−
Frequencies of voltage and alternative current, Hz 45-65
4.6.2
Limit of permissible relative measurement error:
−
Direct voltage, %
±[1+0.1(Us/Um-1)]
−
Effective value of alternative voltage, % ±[1+0.1(Us/Um-1)]
−
Effective value of alternative current, %
±[1+0.1(Is/Im-1)]
−
Frequencies of voltage and alternative current, % ±0.1
4.6.3
Limit of permissible reduced measurement error:
−
Voltage-voltage, current-current, voltage-current
−
(with the voltage of more than 30 V and current
−
of more than 100 mA) phase shift, %
±1
−
Active (reactive) power, %
±3
4.6.4
Reference technical data.
The device determines phase alternation order in three-phase sys-
tem.
Limiting value of voltage to be shown on display is no less than, V 600
Input resistance of voltage channels, no less than, MW 1
