Good evening! I am currently taking measurements on a 20 HP DC motor using a Fluke 87 multimeter with a Fluke i401 current clamp. I have connected the i401 to the Com & V Ω port on the multimeter and set the dial to mV. After clamping around the DC motor wire and pressing the green button, I am not receiving a current reading. However, when I switch the dial to DC V, I am able to get a reading, although it does not match the reading displayed on the old Siemens Simoreg DC Drive in P019. Can you please confirm if I am using the Fluke 87 and Fluke i401 correctly? Thank you for your assistance.
When using the I410 device, it's important to remember that it converts Amps to millivolts (mv) at a ratio of 1:1. Therefore, the appropriate setting to measure DC voltage or millivolts would be ideal. It seems like there may have been a misunderstanding with the settings - it should be set to r019, which represents a percentage of the rated current. Double-check your conversions to ensure accuracy.
Good Morning! I appreciate your assistance. I have a query regarding the Siemens Simoreg DC Drive displaying a reading of P019 14.0. I am assuming this value represents the amperage, but could it possibly be the percentage of the P100, which is the rated nameplate current? Additionally, I have the Fluke 87 and Fluke i410 connected with the black COM and red plugs into the RED V, Ohms, Diode port. Can I confirm that each milliamp represents one Amp accurately? Thank you for your help.
Cydog greeted with a "Good Morning" and expressed gratitude. The Siemens Simoreg DC Drive is currently displaying a reading of 14.0 in P019, which is likely in Amps or a percentage of P100, the rated nameplate current. The Fluke 87 and Fluke i410 are connected with the black COM and red into the RED V, Ohms, Diode port. Confirming that each milliamp is equivalent to one Amp. A suggestion was made to refer to the manual for the Fluke i410 for more information: https://dam-assets.fluke.com/s3fs-public/i4101010iseng0300.pdf?mFLpAUl8gYchO1i9iYLzkPG5Fv.Xg.qz. Thank you for the assistance.
Inquiring about the Siemens Simoreg DC Drive's reading of P019 14.0, Cydog wonders if it represents amps or the percent of the rated nameplate current, P100. The Fluke 87 and Fluke i410 are connected with the black COM and the red in the RED V for Ohms and Diode testing. Each milliamp equals one amp. Thank you for clarifying that it's a percent of the rated current and not actual amperage.
It looks like you're using the equipment correctly, but I suspect the problem might lie in the settings of your Fluke 87 multimeter. When you attach the i401 current clamp, you need to remember that it's effectively converting higher AC or DC currents to a lower voltage that your multimeter can read. So, setting it to mV when using the clamp is correct. However, make sure your multimeter is set to interpret the incoming signal as DC (not AC), which might be causing the inconsistent readings you're experiencing. Also, ensure that your Fluke i401 clamp is tightly and correctly positioned around the wire, a loose clamp might lead to inaccurate readings. As for the difference in readings between the multimeter and Siemens Simoreg DC Drive, there might be several factors in play, such as calibration differences or even the age and condition of both devices.
Hello! You're close, but you've got the configuration slightly off. With an i401 clamp, you want to set your Fluke 87's dial to AC mV, not DCV or mV. The clamp outputs 1 mV per A in an AC signal, even for DC current. Also, ensure the arrow on the clamp is pointed towards the load, not the source. This should give you the correct current reading. As for the Siemens Simoreg Drive, it's possible that there might be a calibration issue causing the discrepancy between the readings.
Hello there! It sounds like you have set up most of your gear correctly. However, remember with a Fluke i401, your measurements should generally be taken in the A setting (Amps), not mV or DC V. Ensure that the dial is turned to the A position when taking readings with the i401 current clamp, you're essentially measuring current after all. The difference in readings with the Simoreg DC Drive might be due to different reference points. Also, please ensure your meter is in DC mode since you're measuring a DC motor. Best of luck with your measurements!
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Answer: - To measure DC motor current with the Fluke i401 current clamp and Fluke 87 multimeter, you should connect the i401 to the Com & V Ω port on the multimeter and set the dial to the appropriate setting, such as mV for current measurements.
Answer: - If you are not receiving a current reading when clamping around the DC motor wire and pressing the green button, ensure that the connection is correct and that the multimeter is set to the correct measurement setting for current.
Answer: - It is common for readings from different devices to have discrepancies due to calibration differences or measurement methodologies. Verify the accuracy of both devices and consider factors like calibration and measurement range when comparing readings.
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