Deni 5300 Specifications download pdf (Page 27)

9 - Calibration9 - Calibration

9 - Calibration

GENERAL

Complete calibration of the 5300 PA is beyond the

capabilities of most users. Magtrol, Inc. recommends

that the 5300 PA be returned to the factory for calibration

certifying the instrument to full specifications.

However, this section includes Calibration Accuracy

Verification procedures and steps to make minor trim-

ups of calibration.

NOTE: To perform these steps, the

factory calibration seal will be

broken. This voids the factory

Calibration Certification that

comes with the 5300 PA.

TEST SETUP

The recommended test setup for each phase is shown in

Figure 16.

NOTE: The same test setup is repeated

for each of the 3-phases.

The accuracy of the voltage and current standards used

for calibration should be at least four times the accuracy

of the 5300 PA specifications. The equipment shown

in this test setup meets this requirement.

To accurately measure AC power it is important that

the current source have a phase shifting control. With

such a phase adjustment, phase shift caused by incidental

circuit inductances can be compensated for by adjusting

the phase of the current wave form to be exactly in phase

(zero phase shift) with the voltage wave form. Sources

of incidental circuit inductance include the current shunts

within the 5300, output impedance of the calibrators,

impedance of the load and wiring inductance.

OPTIONAL-FOR AMPS >2

TRANSCONDUCTANCE AMP.

FLUKE 5725A;5205A

GUIDELINE 7620A, OR

EQUIVALENT

GND

INPUT

AMPS

5300

OUTPUT

LOW

VOLTS

HIGH

EARTH

VOLTAGE CALIBRATOR

FLUKE 5700A OR

FLUKE 5100A OR

EQUIVALENT

VOLTAGE CALIBRATOR

FLUKE 5700A OR

EQUIVALENT

VOLTS VOLTS, HIGH LOW

VARIABLE

PHAS

OUTPUT

PHASE

LOCK

LOW CURRENT

HIGH

UUT

(REF)

(EACH PHASE)

Figure 16. Calibration Verification Test Setup

(For Each Phase)

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 39 40

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Deni 5300 Specifications Page 27

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