Description
If you’re looking for a versatile clamp-on amp meter for electrical motor maintenance and HVAC testing in high voltage industrial environments, the AMP-330 Clamp Meter is the best clamp meter for the job. It is the best clamp meter in the AMP-300 Series line including all the features of the AMP-320 plus a work light, peak hold, CAT IV 600 V, CAT III 1000 V safety rating and large 2.0 inch (51 mm) jaw. HVAC technicians will find the temperature and capacitance measurements they need plus DC Microamps for testing flame sensors. It also had core motor testing capabilities such as motor rotation, 3-phase sequence testing, and inrush current measurement for motor start-up monitoring. The low pass filter allows you to accurately measure current and voltage on variable frequency drives. The Amp-Tip function allows for precise measurement of current down to the tenth of an Amp, enabling accurate current measurement of both large and small diameter wires. It also offers a full range of standard multimeter features, including AC/DC current, AC/DC voltage, frequency, True-RMS, non-contact voltage detection, resistance, and continuity.
Specifications
| AC voltage (True-rms) |
Range: |
0 to 600.0 V |
0 to 1000.0 V |
| Accuracy: |
±1.0% + 5LSD (50 to 60 Hz) |
±0.8% + 5LSD (50 to 60 Hz) |
| DC voltage |
Range: |
0 to 600.0 V |
| Accuracy: |
±1.0% + 5LSD |
| AC+DC voltage |
Range: |
– |
0 to 600.0 V |
– |
0 to 600.0 V |
0 to 1000.0 V |
| Accuracy: |
– |
±1.2% + 7LSD (50 to 60 Hz) |
– |
±1.2% + 7LSD (50 to 60 Hz) |
±1.0% + 7LSD (50 to 60 Hz)
±1.8% + 7LSD (DC 40 to 200 Hz)
±1.2% + 7LSD 200 to 400 Hz) |
| AC current |
Range: |
0 to 600.0 A |
| Accuracy: |
±1.8% + 5LSD (50 to 60 Hz)
±2.0% + 5LSD (100 to 400 Hz) |
| DC current |
Range: |
– |
0 to 600.0 A |
– |
0 to 600.0 A |
0 to 1000.0 A |
| Accuracy: |
– |
±2.0% + 5LSD (DC 50 to 100 Hz) |
– |
±2.0% + 5LSD (DC 50 to 100 Hz) |
±1.8% + 5LSD (DC 50 to 100 Hz) |
| AC+DC current |
Range: |
– |
0 to 600.0 A |
– |
0 to 600.0 A |
0 to 1000.0 A |
| Accuracy: |
– |
±2.2% + 7LSD (DC 50 to 100 Hz)
±2.7% + 7LSD (100 to 400 Hz) |
– |
±2.2% + 7LSD (DC 50 to 100 Hz)
±2.7% + 7LSD (100 to 400 Hz) |
±2.2% + 7LSD (40 to 100 Hz)
±2.5% + 7LSD (100 to 400 Hz) |
| Precise low current AC |
Range: |
0 to 60.00 A |
| Accuracy: |
±1.5% + 5LSD (50 to 60 Hz) |
±1.5% + 5LSD (50 to 60 Hz)
±2.0% + 5LSD (0.00 to 20.00 A, 100 to 400 Hz)
±3.0% + 5LSD (>20.00 to 60.00 A, 40 to 100 Hz)
±3.0% + 5LSD (>20.00 to 60.00 A, 100 to 100 Hz) |
| Precise low current DC |
Range: |
– |
0 to 60.0 A |
– |
0 to 60.0 A |
0 to 60.00 A |
| Accuracy: |
– |
±2.0% + 5LSD |
– |
±2.0% + 5LSD |
±1.5% + 5LSD (0.00 to 20.00 A)
±3.0% + 5LSD (>20.00 to 60.00 A) |
| Micro amps |
Range: |
– |
– |
0 to 2000 µA |
| Accuracy: |
– |
– |
±1.0% + 5LSD |
| Frequency |
Range: |
5.00 to 999.9 Hz |
| Accuracy: |
±1.0% + 5LSD (600 V range) |
| Range: |
50.0 to 400.0 Hz |
| Accuracy: |
±2.0% + 4LSD (600 A range) |
| Resistance |
Range: |
0.0 to 60.00 kΩ |
| Accuracy: |
±1.0% + 5LSD |
| Capacitance |
Range: |
0.0 to 2500 µF |
| Accuracy: |
±2.0% + 4LSD |
| Continuity beeper |
ON ≤ 10 Ω |
| Off > 250 Ω |
Temperature*
(Type K thermocouple) |
|
– |
– |
-40.0 to 752 °F
-40.0 to 400 °C |
|
– |
– |
±1.0% + 3.0 °F (-40.0 to 14.0 °F)
±1.0% + 1.5 °F (>40.0 to 99.9 °F)
±1.0% + 2.0 °F (100 to 752 °F)
±1.0% + 1.5 °C (-40.0 to 10.0 °C)
±1.0% + 0.8 °C (>-10.0 to 99.9 °C)
±1.0% + 1.0 °C (100 to 400 °C) |
| Non-contact voltage |
10 V to 1000 V AC (50 to 60 Hz) |
| Phase rotation indication |
|
– |
– |
Rotation-R for main supply
Rotation-M for motors |
| Diode test |
|
• |
• |
• |
• |
• |
| Jaw opening |
|
1.18 in (30 mm) |
1.37 in (35 mm) |
1.18 in (30 mm) |
1.37 in (35 mm) |
2.0 in (51 mm) |
| Safety rating |
|
CAT III 600 V |
CAT IV 600V
CAT III 1000 V |
| In-rush current |
|
– |
• |
• |
• |
• |
| Peak hold (Crest) |
|
– |
– |
– |
– |
• |
| Relative zero |
|
• |
• |
• |
• |
• |
| Max/Min/Avg |
|
• |
• |
• |
• |
• |
| Data hold |
|
• |
• |
• |
• |
• |
| Backlight |
|
• |
• |
• |
• |
• |
| Auto power off |
|
• |
• |
• |
• |
• |
| Work light |
|
– |
– |
– |
– |
• |
*Error does not include Type-K thermocouple errors
Videos
AMP-200/300 Series
Learn about the AMP 200 and 300 Series Motor Maintenance Clamps.
Spike –
T24 Acceptance testing features
Overall- No issues. This product has the capabilities of reading amperage to the 100th which is critical when testing LED fixtures during a demand response event test.
✔ Yes, I recommend this product.
GP55 –
I like this New Meter.
This new Meter works Great. I do miss the Extendo leads from my old. Amp Probe ? Also I wish this Meter had A Magnet on it like my Amp Probe Mulit Meter. All And A Great Meter I love all of the Features that it has. I Use this For HVAC work. Had to finally go Digital even though my old. Analog Meter is still working. Amp 3a, Keep up the good Work I Have Used AMP Meters for years. Always top Quality and Rugged.
Keep up the good Work!
✔ Yes, I recommend this product.
gfolse –
This product is loaded with great features.
The AMP-330 1000A AC/DC TRMS Motor Maintenance CLAMP METER is of good quality. It is a bunch of test meters rolled into one. You do not have to carry along separate meters to make electrical tests, whether it is AC or DC circuit being tested.
✔ Yes, I recommend this product.
Aaron84 –
Awesome Multi function Clamp Multimeter!
I’m an Industrial Maintenance Electrician, and was looking for a new multi function clamp meter to use for everyday fault finding applications in a heavy industrial environment. I had never heard of Amprobe before, but after reading through the design specs, and hours spent trolling the internet for reviews on their products, I decided to go with the AMP-330.
I’ve been using it for around a month now, and I absolutely love it. Firstly straight out of the box, the build quality is evident, this is a rugged meter. It is comfortable to hold and you can easily change the function mode one handed. It also comes with great quality test leads and handy alligator clips that push on right over the test probes.
There are too many functions to list, but the following are my favorite:
– The quick response time for taking measurements.
– Supply phase rotation and motor phase rotation.
– 1000A Clamp and the ability to switch between Current (A) and Frequency (Hz) whilst using the clamp at the touch of a button.
– AC and DC current measurement through the clamp.
– Nice large back lit display and built in work light.
– Non contact voltage detection.
– CAT IV 600V rated.
All in all this is a beautifully made meter with a huge amount of handy functions squeezed into a small package, and I have no hesitation in recommending this to everyone.
On a side note, if you don’t need a 1000A clamp and a CAT III 600V rating is all you need for the work you do, have a look at the AMP-320 600A Clamp Meter, it has nearly all the same functions but comes in a more compact size.
.
✔ Yes, I recommend this product.
LR67 –
!!Grate product!!
I use the AMP-300 meter in the plastic industries to check all kind of electric the problems in the injection molding machines,
this devices do all what I need in AC or DC,
✔ Yes, I recommend this product.
BillW –
Great Meter for Electrical Maintenance
I’ve owned this meter for 4 years and it has never disappointed. The AC/DC amps is very useful for a variety of AC motor/power distribution and automotive uses. Microamp range for working on thermocouple heating devices. Intuitive and easy to use selection. Type-K temperature readings. It is my go to meter for all electrical maintenance issues.
✔ Yes, I recommend this product.
Rward2312 –
This product is amazing
This product is worth the money does everything any high dollar meter does
✔ Yes, I recommend this product.
Skotty319 –
Great value and construction
My amprobe clamp meter has been through heck and back with me and just doesn’t quit! I wouldn’t recommend any other brand for maintenance!
✔ Yes, I recommend this product.
Bob269 –
great product
I have had this meter for a year and a half. It is easy to use and very efficient.
✔ Yes, I recommend this product.
John43 –
Excellent meter
I use this amp clamp daily on HVAC and electrical systems. Absolutely love this unit!
✔ Yes, I recommend this product.
Kgunn25 –
This was a great buy
I love my amp 330 it is very accurate. It was one of the best buys.
✔ Yes, I recommend this product.
JasonS –
Great Meter with excellent features.
This meter has all the needed options for diagnosing motor issues and saves me from having to carry multiple test instruments with me in the field when trouble shooting motor and VFD issues as well as general electrical testing.
✔ Yes, I recommend this product.
JOSEPH40511 –
Excellent Durability, Reliability, and Accuracy
I have an Improve 330 and love it. Working in a maintenance facility we have to troubleshoot electrical problems and motors. This meter works great because it keeps me from having extra tools to check phase rotation. It is reliable and has never failed me.
✔ Yes, I recommend this product.
Radar00 –
This is my go to meter
This is one of the best meters I have ever owned. It has never failed and always accurate. I actually use this to double check some other products. It’s very tough. I use it daily underground in a coal mines.
✔ Yes, I recommend this product.
Aar27 –
The one meter to have with you
This is one of the most complete meters on the market.
It has every feature you’ll need on a daily basis and should be the first meter you grab on the go.
The AMP-330 is well built and very accurate. It’s worth purchasing.
✔ Yes, I recommend this product.
fullonthripist –
Best Meter I’ve Owned
I finally decided to upgrade my home multimeter to something I will never grow out of, and I couldn’t be happier with my decision. I use the parent company’s meters (Fluke) at work, and just like them, I don’t have any qualms about any of the readings I’ve obtained from capacitance to dc amps using this meter. It’s a great bang for the buck.
The AMP-330 meter itself is great, but I have two minor gripes which aren’t enough to drop a star:
1.) I wish this was USA or German made, as long as the unit didn’t increase significantly in price (~20%). But I understand this may not be possible without compromising quality.
2.) As of the date of my purchase (Aug 2018), there is an error in the English portion of the user manual. Page 18 in the English section is actually in German.
✔ Yes, I recommend this product.
Junior04 –
Amp 330 multi meter
This is a very good tool easy to use to check voltage or clamp it on and check how many amps anything is drawing
✔ Yes, I recommend this product.
Prod –
I love all of the Features this meter has. I am an HVAC Service Tech.
I use this meter most days while trouble shooting
Furnace and A/C Repairs. If you needed one all around
Meter this would be it. Very versatile. Also very Accurate.
I have several Amprobe meters.
✔ Yes, I recommend this product.