• Maximum permissible [pogreshnost]+/- 0,01%
• Converter [A]/D of the signals
• Simultaneous measurement in complete range of 360°
• Entrance for the external current DC
• Built-in comparator
• Analysis of the harmonics
• PK the interface
• Analog entrance

Instrument RD-22 is the contemporary multifunctional primary standard converter of high accuracy with the functions of the measurement of current, voltage, frequency, active and reactive energy and power.

A series RD personified before itself the new technology of the measurements Of dytronics, based beyond the use of the integrating analog-to-digital converter (converter) of signal. In contrast to already existing ATsP, utilized before other instruments, ATsP Dytronic is specially developed for measuring the parameters of electric power. In addition to this before the instrument RD-22 is used the electro compensating auto- range external comparator- transformer of current together with the electro biassing transformer of the stress of entrance. This makes possible AT THE POINT OF RD-22 to conduct measurements with the highest degree of accuracy and stability even due to the conditions of interferences.

Testing instrument can be produced with the use of external primary DC[signala] of voltage, current and time. External primary DC signal can be compared with the internal signal, generated by instrument.

Instrument is complete metrological standard system AC.

Standard counters RD ensure the simultaneous measurement of active and reactive energy and power in complete range of 360°. Entrances for measuring of current, voltage, and so for the nourishment of instrument, have the automatic tuning of limits, which protects instrument from the damage as a result of incorrect connection.

• Range on stress 60-600 [v]
• Range on the current 0,2-125 A, or 0.2-200 A
• Range on the supply voltage by 60-600 [v]

The external converter of power input ensures against the entrance of instrument signal 24 [v] DC. The external converter of power input decreases the influence of the frequency of electric brush 60/50 Hz beyond the measurements.
With the use of additional options the instrument RD-22 can: to carry out the analysis of harmonics to 50 orders, automatically to calculate and to depict errors in the counter being investigated. Option for the readout of analog signals makes it possible to produce testing the sensors and other devices, which have analog current output instead of the impulsively digital output. So it can be used with the controlled load or with the current-measuring tongs for conducting the load test.

Instrument can automatically calculate the results of testing the counter being investigated, substituting the role of external comparator.
Instrument RD-22 is used as standard, for checking the counters of electric power in the verifying stations.
Before the instrument is provided the connection for the sake of the computer (RS-232) and different packets of software for different purposes are possible.

Specification

The operating conditions Current (automatic ranking) - 0.2 - 125 A down the entrance (125 A option) - 0.2 - 200 A down the entrance (200 A option) VKh. Stress: 60- 600 [v] Supply voltage: 120 - 240 [v] Additional entrance of nourishment by 24 [v] Frequency: 45 - 65 Hz Phase: 0 - 360° or -180° of +180° Capacity rate: -1 - +1 Temperature: -20° - +70° Humidity: 0 - 95% Physical characteristics of [priboraVes] of instrument with the comparator of current and the platform 5,5 kg. Weight of the additional source of power 1,4 kg. Dimensions of the instrument: 190 X of 140 X of 140 mm Dimensions of the platform: 19 X of 140 X of 508 mm [ZHK] screen with the illumination Checking and the calibration It does not require manual tuning, calibration is produced with the aid of software [Mezhkalibrovochnyy] interval of 365 days Readiness 60 minutes after the switching on Accuracy The maximum permissible error is manifested with [summarnomvliyanii] of all destabilizing factors and when [s]osφ < 0,5. Max. the permissible error: ± 0.01% Error in the conversion Of dC[v] AC: ± 0.005% Example of the selection of the instrument For example, let us select instrument RD-22-332. This will mean that the instrument is capable to measure the following values: Watt-hours (Whrs), stress (the V), current (a), Pitch- hours (VARhrs), Volt-ampere- hours (VAhrs), reactive hours (Qhrs), watts (W), pitches, total power (VA), Volt- hours (Vhrs), ampere-hours (Ahrs), volts ² - hours, amperes ² - hours, phase angle, capacity rate, frequency, Fixation of min[i] of max[znacheniy] of all enumerated values. Instrument has the functions of comparator and harmonic analyzer, an entrance for the current tongs, a range of current 200 a.

Information for the selection of the model Last three numbers determine the model of counter. First number of the latter the three- set of the measured parameters. The second - presence of comparator, harmonic analyzer and/or analog entrance. The third - configuration of current entrance. Interpretation of the code of the model RD-22-1xx Watt-hours (Whrs), stress (the V), current (a), Pitch- hours (VARhrs) RD-22-2xx Watt-hours (Whrs), stress (the V), current (a), Pitch- hours (VARhrs), Volt-ampere- hours (VAhrs), reactive hours (Qhrs), watts (W), pitches, total power (VA), phase angle, capacity rate, frequency. RD-22-3xx Watt-hours (Whrs), stress (the V), current (a), Pitch- hours (VARhrs), Volt-ampere- hours (VAhrs), reactive hours (Qhrs), watts (W), pitches, total power (VA), Volt- hours (Vhrs), ampere-hours (Ahrs), volts ² - hours, amperes ² - hours, phase angle, capacity rate, frequency, the fixation of min[i] of max[znacheniy] of all enumerated values. RD-22-4xx Watt-hours (Whrs), stress (the V), current (a), Pitch- hours (VARhrs), Volt-ampere- hours (VAhrs), reactive hours (Qhrs), watts (W), pitches, total power (VA), Volt- hours (Vhrs), ampere-hours (Ahrs), volts ² - hours, amperes ² - hours, phase angle, capacity rate, frequency, the fixation of min[i] of max[znacheniy] of all enumerated values, the indication of average values. Selection of the second number of last three RD-22-[kh]0x - without comparator and harmonic analyzer RD-22-x1x- with the built-in comparator. RD-22-x2x - with the harmonic analyzer. RD-22-x3x - by c[komparatorom] and by harmonic analyzer RD-22-x4x - analog entrance (for U, A, P, Q, VA) (2mADCmax) RD-22-x5x - comparator and the analog entrance RD-22-x6x - harmonic analyzer and analog entrance. RD-22-x7x - comparator, analyzer is the [garmonikanalogovyy] entrance Selection of the third number of last three RD-22-xx1 - entrance for the current tongs, the range of current 125 A RD-22-xx2 - entrance for the current tongs, the range of current 200 A

Description of the type of the standard counters Of rD2x-xxx

Detailed description RD22