Three Phase Reference Standard CL3115

CL3115-HW
reference standard CL3115

This reference standard has accuracy class 0.02 related to apparent power
It can be used for

  • voltage measurement
  • current measurement
  • phase angle measurement
  • frequency measurement
  • harmonics analysis up to the 63th
  • power measurement, active-, reactive-, apparent
  • self consumption measurements
  • accuracy error calculations stand-alone with one pulse input socket, or together with error calculators in stationary test benches
  • register tests

Specifications

Specifications Reference Standard CL3115-HW, Mains connection
Item Values
Voltage 85 V … 265 V AC
Frequency 45 Hz … 65 Hz
Power consumption < 30 VA
Preheating time 15 minutes
Operating temperature 5 °C … 45 °C
Max. relative humidity ≤ 85 %, not condensate
Surge voltage protection class C
Installation category III
Pollution degree 2
Weight approx. 13 kg
Dimensions 19” 3 units,
H x W x D: 132,5 mm x 483 mm x 405 mm
Specifications Reference Standard CL3115-HW, measurement values
Item Values
Test voltage, phase-neutral 30 V … 576 V
Voltage ranges 60 V, 120 V, 240 V, 480 V, auto range
Test current 1 mA … 120 A
Current ranges 10 mA, 20 mA, 50 mA, 0.1 A, 0.2 A, 0.5 A, 1 A, 2 A,
5 A, 10 A, 20 A, 50 A, 100 A, auto range
Frequency range, fundamental wave 40 Hz … 70 Hz
Bandwidth 4 kHz
Voltage measurement accuracy < 0.01 %
Voltage measurement drift < 35 ppm / year
Current measurement accuracy < 25 mA < 0.02 %
Current measurement accuracy ≥ 25 mA < 0.01 %
Current measurement drift < 65 ppm / year
Power measurement accuracy P, Q, S < 0.02 % (current ≥ 25 mA and λ = 1)
Power measurement drift < 100 ppm / year
Phase angle < 0.01° (current ≥ 25 mA and voltage > 30 V)
Frequency 0.005 Hz
Voltage temperature drift < 2,5 ppm / K
Current temperature drift < 5 ppm / K
Power temperature drift < 7.5 ppm / K
Errors are independent of measurement mode and when using auto range. The reference standard provides a power proportional frequency output (160 kHz nominal).

Meter Constant Table

CL3115 power constants
60 V120 V240 V480 V
0.01 A2x 1092x 1092x 1092x 109
0.02 A2x 1092x 1092x 1092x 109
0.05 A2x 1092x 1092x 1092x 109
0.1 A2x 1092x 1092x 1092x 109
0.2 A2x 1092x 1092x 1092x 109
0.5 A2x 1092x 1091.6x 1098x 108
1 A2x 1091.6x 1098x 1084x 108
2 A1.6x 1098x 1084x 1082x 108
5 A6.4x 1083.2x 1081.6x 1088x 107
10 A3.2x 1081.6x 1088x 1074x 107
20 A1.6x 1088x 1074x 1072x 107
50 A6.4x 1073.2x 1071.6x 1078x 106
100 A3.2x 1071.6x 1078x 1064x 106
The table refers to the automatic settings. It's valid for 3 wire- and 4 wire measuring mode.

The output frequency for end of range in voltage/current pair with three phase connection is 160 kHz. The power pulses are on TTL/CMOS level. The burden capacity is > 20 mA.

Calculation formulas

Frequency

frequency calculation
f = frequency
UR = voltage range
IR = current range
c = reference meter constant

Constant

constant calculation

The meter constants can be set in the settings menu or selected automatic. Setting range is 1 i/kWh …2 x 109 i/kWh.

Screenshots

The equipment can be operated manually with menu keys or via RS485 remote control. A interface description for integration into 3rd party meter test equipment is available on request. Below are some screen-shots

For more information please contact us.

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