Using the Fluke 1730 AUX ports to consolidate load measurement
Setting up the Fluke 1730 instrument for analog measurements and logging
The Fluke 1730 have two analog inputs (via two three pole input socket) that are monitored logged at the same time as they measure electrical power and energy. The analog signals are applied to one or two Auxiliary Input Cable (1730 AUX Cable 4395217 equipped with a BNC-connection) and connected to the 1730 instrument:
AUX 1&2 input for 0 to 10V DC analog signals
In addition to directly applied analog signal it is possible to use the analog inputs in association with wireless Fluke Connect modules, these modules directly measure a variety of variables including temperature, AC and DC voltage and current. These modules connect to the measuring instrument via a low energy Bluetooth (BLE) connection.
We’ll consider the direct connection only in this article.
To enable the measuring instrument to measure the analog signal the instrument is configured in the instrument menu. Go to AUX configuration:
The default setting is 0-10V, the AUX adapter supplies a maximum of 10V d.c. output (even if the primary input is 1,000V). To create a user defined input select Custom1 and select Edit (F4).
Select ENTER to edit
Input chosen text, in the case ‘Level’ is entered.
Next choose sensor type from listed options
In this case 4-20mA is selected. For 4-20mA loops a shunt resistor is required, with a 50 Ohm resistor selected a signal of 0.2V to 1V is generated for 4-20mA inputs.
Now choose a unit, we’ll select m (meters)
Here the minimum and maximum are 0 to 10m, at 4mA the level will be 0m and at 20mA level will be 10m.
A variety of sensor types can be created; these are stored in the instrument for later use. Measurements logged are then integrated along with the voltage, current, power and energy data simultaneously.