Three Phase Reference Standard CL3115

reference standard CL3115-HW

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 [note]stand-alone with one pulse input socket, or together with error calculators in stationary test benches[/note]
  • register tests

Specs

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).

Screen-shots


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

PQS
Power indication in 3 phase 4 wire mode

UI
voltage, current, phase angle

PQS
Power indication in 3 phase 4 wire mode

PQS3
power indication in 3ph 3 wire mode

accuracy
accuracy measurement

Accessories


scanning head
transport case

FAQ

The recalibration period is defined by national rules or by company policy. Typically it’s one or two years. The reference standard can be calibrated by any recognized body or metrological institute. Please note that there is a difference between recalibration and readjustment. An adjustment becomes necessary once the reference standard accuracy is out of the specified class. The adjustment can be done locally. There is no need to sent the instrument back to us.
Rate this post

The reference standard CL3115 is by default delivered with a company calibration certificate. It can also be delivered with a calibration certificate issued by an ILAC accredited laboratory on additional cost.

Rate this post

Following measurement modes are supported by the reference standard CL3115:

  • Three-phase four-wire system, active/ reactive true/apparent
  • Three-phase three-wire system, active/ reactive true/ apparent
  • Single-phase system, active/ reactive true/ apparent
  • Three elements cross connected 90° (Q390)
  • Two elements cross connected 90° (Q290)
  • Two elements cross connected 60° (Q260)

Rate this post

A frequency proportional to the total power is generated by a signal processor, which applies to the pulse output fOUT of the CL3115. The energy output pulse constant can be set to automatic mode or manual mode. Setting range is: 1…2,000,000,000 i/kWh. The pulse output frequency is 160 kHz for End of range in voltage and current. The energy pulse is on TTL/CMOS level, burden capacity >20 mA. The range can be selected in Auto-mode or direct assigned.
Calculation formula for the output frequency

 

Calculation formula for the meter constant

UR and IR are the ranges, the frequency is 160 kHz

 

CL3115 meter constants
3 wire and 4 wire mode
VOLTAGE RANGE
60V 120V 240V 480V
C

U

R

R

E

N

T

R

A

N

G

E

0.01A 2.0×109 2.0×109 2.0×109 2.0×109
0.02A 2.0×109 2.0×109 2.0×109 2.0×109
0.05A 2.0×109 2.0×109 2.0×109 2.0×109
0.1A 2.0×109 2.0×109 2.0×109 2.0×109
0.2A 2.0×109 2.0×109 2.0×109 2.0×109
0.5A 2.0×109 2.0×109 1.6×109 8.0×108
1A 2.0×109 1.6×109 8.0×108 4.0×108
2A 1.6×109 8.0×108 4.0×108 2.0×108
5A 6.4×108 3.2×108 1.6×108 8.0×107
10A 3.2×108 1.6×108 8.0×107 4.0×107
20A 1.6×108 8.0×107 4.0×107 2.0×107
50A 6.4×107 3.2×107 1.6×107 8.0×106
100A 3.2×107 1.6×107 8.0×106 4.0×106

Rate this post

Load More

Contact Us

share by QR code
QR
Rate this post

Published by

Lao Ren

more than 30 years experience in energy metering Product Director Shenzhen CLOU Electronics

Leave a Reply

Your email address will not be published. Required fields are marked *

1 × three =