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What once took two people, now takes one
Allows one technician to do the job that would require two people. This remote display allows the user to clamp around a conductor, detach the display. Furthermore, they can walk across the room to configure controls or remove protective equipment, all while watching real-time readings.
The iFlex® Flexible Current Probe (included) expands the measurement range to 2500 A AC while providing increased display flexibility. With a cord that runs 6', you can finally measure those tight spaces, awkward sized conductors and disorganized wires.
This product includes a Traceable Calibration Certificate with full Data and Uncertainties.
Measurement capability
Features
To measure ac or dc voltage:
To measure resistance or continuity:
If the resistance is <30Ω, continuity is indicated by a beeper continuously sounding. If the display reads OL, the circuit is open or the resistance being measured is greater than the meters resistance range.
Visual of an AC/DC voltage measurement
To measure frequency (on the Fluke 381):
“RMS” stands for root-mean-square. It comes from a mathematical formula that calculates the “effective” value (or heating value) of any ac wave shape. In electrical terms, the ac rms value is equivalent to the dc heating value of a particular waveform—voltage or current. For example, if a resistive heating element in an electric furnace is rated at 15 kilowatts (kW) of heat at 240 V ac rms, then we would get the same amount of heat if we applied 240 V of dc instead of ac.
Electrical power system components such as fuses, bus bars, conductors, and thermal elements of circuit breakers are rated in rms current because their main limitation has to do with heat dissipation. If we want to check an electrical circuit for overloading, we need to measure the rms current and compare the measured value to the rated value for the component in question.
If a current clamp is labeled and specified to respond to the true-rms value of current, it means that the clamp’s internal circuit calculates the heating value according to the rms formula. This method will give the correct heating value regardless of the current wave shape.
Certain low-cost current clamps, which don’t have true rms circuitry, use a short cut method to find the rms value.
These meters are specified to be “average responding-rms indicating.” These meters capture the rectified average of an ac waveform and scale the number by 1.1 to calculate the rms value. In other words, the value they display is not a true value, but rather is a calculated value based on an assumption about the wave shape. The average responding method works for pure sine waves but can lead to large reading errors up to 40 percent, when a waveform is distorted by nonlinear loads such as adjustable speed drives or computers. The table below gives some examples of the way the two different types of meters respond to different wave shapes.
Some true-rms clamp meters are ac coupled, which gives the rms value of only the ac component of a waveform. (This dates from the time when a majority of measurements in the electrical industry were predominately sinusoidal with no dc offset.) To measure the rms with an ac coupled clamp meter, first measure the rms value of the ac component. Then measure the waveform on the dc scale. Combine the ac and dc components by squaring each, adding the results, and then extracting the square root. The function AC+DC in Fluke true rms clamp meters essentially does the calculation for you.
A comparison of average responding and true-rms units
| Electrical Specifications | |
| Range | 999.9 A |
| Resolution | 0.1 A |
| Accuracy | 2% ± 5 digits (10 to 100 Hz) 5% &plusn; 5 digits (100 to 500 Hz) |
| Crest Factor (50/60 Hz) | 3 at 500 A 2.5 at 600 A 1.42 at 1000 A Add 2% for C.F. >2 |
| AC Current via Flexible Current Probe | |
| Range | 999.9, 2500 A (45 to 500 Hz) |
| Resolution | 0.1, 1 A |
| Accuracy | 3% ± 5 digits |
| Crest Factor (50/60 Hz) | 3.0 at 1100 A 2.5 at 1400 A 1.42 at 2500 A Add 2% for C.F. >2 |
| DC Current | |
| Range | 999.9 A |
| Resolution | 0.1 A |
| Accuracy | 2.5% ± 5 digits |
Everything you need to know about orders, cancellations, refunds, and delivery.
EquipTestPro ships to both Canada and the United States. We are pleased to serve customers across North America with reliable, trackable delivery options.
When you place an order, a flat-rate shipping charge will be applied at checkout based on your order. The applicable rate will be clearly displayed before you complete your purchase.
Flat-rate shipping is calculated to reflect the cost of reliable, insured delivery. The rate shown at checkout is final — no hidden surcharges will be added after your order is placed.
For certain items, shipping costs are calculated based on the weight of the product. The weight of any weight-based item is listed on its product detail page.
For example, an item weighing 3.2 lbs will be rated at 4 lbs for shipping calculation purposes. This policy is standard practice across all major carriers we work with.
Some products sold on EquipTestPro are subject to shipping restrictions due to regulatory, carrier, or safety requirements. These include but may not be limited to:
Where restrictions apply, this will be clearly noted on the product listing. If you have questions about a specific product's shipping eligibility to your location, please contact us before placing your order.
Orders are processed on business days (Monday through Friday, excluding statutory holidays). Orders placed after business hours or on weekends will begin processing the following business day.
You are entitled to cancel your Order within 30 days of receipt without providing a reason, subject to the processing fee structure described below.
The cancellation deadline is 30 days from the date on which you received the Goods, or on which a third party appointed by you (other than the carrier) takes possession of the delivered product.
To exercise your cancellation right, notify us with a clear written statement by:
The following fee structure applies to all cancellations. Please review carefully before requesting a cancellation.
A processing fee of 10% of the total order value will be withheld from your refund to cover payment processing, handling, and administrative costs.
If we cancel your order due to item unavailability, no processing fee will be withheld. You receive a full refund of the amount paid.
Refunds will be issued using the same payment method as the original purchase. No additional fees beyond those described above will be applied.
To be eligible for a return, all of the following conditions must be met:
We reserve the right to refuse returns of any merchandise that does not meet the above conditions, at our sole discretion.
The following items are not eligible for return under any circumstances:
You are responsible for the cost and risk of returning Goods to us. Before sending any items, please contact us at info@equiptestpro.com to obtain the return shipping address.
You should expect to receive your refund within four (4) weeks of delivering your return package to the shipper. In many cases, refunds are processed sooner. The timeline breaks down as follows:
We will process refunds no later than 14 days from the day we receive the returned Goods, using the same payment method as your original purchase.
If the Goods were marked as a gift at the time of purchase and shipped directly to you, a gift credit equal to the return value (less any applicable processing fee) will be issued. Once the returned product is received and inspected, a gift certificate will be mailed to you.
If the Goods were not marked as a gift at purchase, or if the gift giver had the order shipped to themselves first, the refund will be issued to the original purchaser.
Reach out to our support team for assistance with any order or return.
Not Applicable
| Condition: | NA |
Defective new equipment may be returned for warrantyrepair/exchange to us within (5) days of the shipment receipt date. After five (5) days, returns will be handled by direct contact and in accordance with the warranty terms of the item's manufacturer. Items that have malfunctioned due to mishandling, electrical overload, etc., will be subject to repair charge.
Non defective new equipment will be authorized for return within five (5) days of the shipment receipt date if the equipment is still in new, re-sellable condition with the original manual(s), accessories, packing material and carton. We reserve the right to reject returnsin which there is no original packaging, missing accessories, damage or visible signs of usage of the item. A restocking fee of up to 25% of purchase price may apply. Special orders and dangerous goods are non-returnable.
(Do not write anytingon the manufacturer's original package or use as a shipping carton. Include all accessories, manuals and warranties.)
Please, include a copy of the packing list or invoice with a reason for the return. Your return authorization number is valid for thirty (30) days.
