The Reference Standard RS is precision standard meter in single- and three-phase version for electrical power and energy measurement. It is designed to meet all requirements put on a reference standard in a single- and three-phase electricity meter testing and calibration systems. The Reference Standard can be set to any true or artificial mode of operation in three phase system and is capable to evaluate individual quantities in any phase and three-phase cumulative quantities as well.
Properties
- Precision 24-bit A/D conversion and digital signal processing;
- Single-phase and three-phase versions in classes 0,05; 0,02; 0,01;
- Independent input channels (three fully independent differential voltage input circuits in three-phase version);
- Current measurement up to 120, 160, 200 A;
- Continuous voltage and current ranges with auto-range functionality;
- Independent input channels (three fully independent differential voltage input circuits in three-phase version);
- Four independent fully programmable impulse outputs assignable to various quantities or constant frequency;
- Direct meter testing possibility (with supplied accessories);
- Portable with special transport case;
- Rack mountable with 2U form factor;
- Programmable meter constant.
Technical data
| Basic Frequency Range | 40 ... 70 Hz |
|---|---|
| Test Voltage | 30 ... 500 V |
| Voltage Ranges | continuous / autorange |
| Test Current | 0.1 mA ... 5 A (RS 2x30 /5A) 1 mA ... 120 A (RS 2x30) 1 mA ... 160 A (RS 2x30/160A) 1 mA ... 200 A (RS 2x30/200A) |
| Current Ranges | continuous / autorange |
| Bandwidth | do 4000 Hz |
| Harmonics |
up to 64th |
| Power Factor Range | 0 ... 1 (four-quadrant measurement) |
| Communication Interface | RS 232 with SCPI compatible communication protocol |
| Meter Testing | direct testing of inductive or electronicmeters or reference standards with simultaneous usage of up to 3 error calculators |
| Environmental Temperature | +20 oC .. +45 oC |
| Temperature Coefficient | < 0,0010 % / oC |
| Pre-warming Time | 20 minutes |
| Recalibration Period | 2 years |
| Influence of the mains powersupply on measurement results with a variation of 10% | < 0,002 % |
| Power Supply | 86 ... 268 V AC, 47 ... 65 Hz |
| Power Consumption | <80 VA |
| Dimensions (w x d x h) | 490 x 490 x 90 mm (2U) |
| Weight (approx.) | 9,5 kg (single-phase version) 10,5 kg (three-phase version) |