FLUKE 1773/BASIC User Manual for the Fluke 1773/BASIC Three-Phase Power Quality Analyzer, 8 kV

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3 Phase Power Quality Analyzer

Measurement Configuration

This example considers an output of a temperature transmitter with 4 mA to 20 mA current

that represents 0 °C to 250 °C:

1. Feed the current through a 50 Ω resistor to convert the signal to a voltage of 0.2 V dc to

1Vdc.

2. Use the on-screen keyboard to input the name, Pressure, the units, and the mathematical

constants that change the 4 mA to 20 mA to pressure readings.

At 4 mA the voltage will be 0.2 V dc representing °C. At 20 mA the voltage will be 1 V dc

representing 250 °C. The span of the signal from 0 to 250 °C will be 0.8 V. To create a value

of 250 °C at full scale the signal is multiplied by 312.5 (250/0.8). As the 0 °C is 0.2 V dc, an

offset is applied, this offset is the difference between 250 and 312.5 which is 62.5.

3. Check the AUX box to enable the display and logging of the AUX input.

Before logging can start, review the Event Trigger Setting. This setting ensures a check is

made before the logging session starts and results in a session that delivers valid data every

time.

Note

To use this feature you will need to purchase the optional Models: Fluke 17XX AUX

Input Adapter Box that allows inputs of ±1000 V dc with 4 mm sockets or ±10 V dc with

push-in terminals.

PQ Logger Event Trigger Settings

The Event Trigger Settings are supplementary to the PQ Meter Trigger Settings and are used

for mains signaling only.

The trigger is based on a small percentage of the Nominal Voltage but only appear for

triggering at the frequencies selected in the mains signaling setup. The typical setting is 5 % of

nominal. The trigger must be enabled with the Trigger On radio button. (Most applications will

not need this trigger turned on.)

Other event trigger settings should also be reviewed. See Event Trigger Settings.

Session Settings

The Session Settings specify the duration of the logging session from an absolute date of

some unknown date in the future, the average period of each of the logged measurements,

and the details required for harmonics measurements. In addition, you can create a unique

name for the session and a description of the session that is included in all reports generated

from the data.

Name. Type in a name for the logging session with the on-screen keyboard.

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FLUKE 1773/BASIC Three-Phase Power Quality Analyzer, 8 kV