General Safety Instructions: Read the following safety instructions to avoid injury and prevent damage to this product or any products connected to it. Use this product only as specified. Only qualified personnel should perform service procedures. To Avoid Fire or Personal Injury Connect and Disconnect Properly.
Do not operate this product without the covers or panels. Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present. Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel.
DANGER Indicates an injury hazard immediately accessible as you read the marking. WARNING indicates injury hazard immediately accessible as you read the marking. CAUTION Indicates a hazard to property including the product. Symbols on the Product. These symbols may appear on the product: Attention refer to operation Instructions.
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PIC 1 Output Into Press Button Battery Cover Range Selection Test Position (Power On/Off) Max. 11¢Wire DC Zero Offset...
Shows the controls and indicators on the probe. current Control/Indicator Description Current flow symbol. The arrow shows the probe’s polarity convention for measuring current flowing from positive to negative. Zero adjustment. Rotate to adjust the probe output to zero when there is no current present. It may also be used to offset a DC signal component.
These characteristics apply to an adjusted UT-P40 AC/DC Current Probe installed on an oscilloscope of any brand. The oscilloscope must be warmed up for at least 20 minutes and be in an environment with the temperature at 10℃~30℃ and the humidity at 0~80.
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5m V/div. 2. Move the OFF/ Range switch to the 5 mV/A or 50 mV/A position to turn on the probe. (※The UT-P40 current probe has a green LED power/battery indicator. If the LED does not light, replace the battery or use specified power adaptor.)
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Figure 3 shows the difference between the line current drawn by a resistive load and a motor controller. 7.Congratulations on your purchase of the UT-P40, a multifunctional current probe. When connecting to a digital meter,...
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Note the current convention arrow on the probe to get the proper polarity reading. 10.To increase the measurement sensitivity of the UT-P40 current probe, loop additional turns of the wire under test through the jaws. See Figure 4. The sensitivity of the UT-P40 current probe is multiplied times the number of loops in the jaws.
Electrical Characteristics Current Range 5mV/A ; 50mV/A ±2% ±0.4A at 50mV/A (0.4A to 10 A p-p range) DC Accuracy, typical ±2% ± 1A at 5mV/A (1A to 60 A p-p range) Maximum Working Current Frequency Range DC to 100KHz (-3 dB) Rise time,typical 2.5uS Noise(Max)