Digital Multimeter 7481 - Just another 8½ digits digital multimeter released - Page 1
Forum section: electronics / general

author: mimmus78
author_rank: Unknown
timestamp: July 23, 2019, 02:45:12 pm
content: While still waiting for the big one this will be remembered as the year of 8½ digits digital multimeter release ...The 7481 is 8½-digit digital multimeter with high resolution of 0.01 ppm, equipped with DC voltage, DC current and resistance measurement functions.It is suitable for use in research and development fields or calibration organisations, and calibration of inspection systems for electronic components or semiconductors.The 7481 achieves high-resolution measurement such as 10 nV for DC voltage measurement, 100 fA for 100 fA measurement and 1 μΩ for resistance measurement,and also guarantees high accuracy 5 ppm per year for voltage measurement.In addition, the self-calibration function allows high-accuracy measurement at any time, and external calibration can be performed with a smaller number of standards.Features- Maximum 8 ½-digit display (119 999 999) for resistance measurement- Easy to perform calibration by using two standards- A/D converter with highly precise linearity and stability- Automatic cancellation of thermal electromotive force as a cause of errors in resistance measurement- Saving up to 50,000 data in the internal memory- External control between front and rear input terminals- Contact check function in 4-wire resistance measurementhttp://www.adcmt-e.com/en/products/digital_multimeters/7481/data/Spec_7481_20190723_en.pdf

author: mimmus78
author_rank: Unknown
timestamp: July 23, 2019, 02:51:04 pm
content: Still no binding posts ... and still VFD ... didn't checked but I guess specs are not improved too from previous model, pretty boring to check.

author: niner_007
author_rank: Frequent Contributor
timestamp: July 24, 2019, 02:03:48 am
content: I checked for you5ppm+0.9 absolute DCV/year accuracy

author: The Soulman
author_rank: Super Contributor
timestamp: July 24, 2019, 08:37:51 am
content: Meh, for 200 bucks I would probably get one, but I think it is more in the 5000 range?And using a vfd on a new device in 2019 is a bit odd.

author: LaserEng
author_rank: Regular Contributor
timestamp: July 25, 2019, 08:35:24 am
content: US$7400 is the price in Japan, it will be more outside of Japan. It will no doubt sell well in Japan but outside

author: ycui@eml.cc
author_rank: Newbie
timestamp: August 04, 2019, 01:45:29 am
content: Does anyone have one of the previous model 7480T?I have one, but I am seeing 2uV noise floor at 10V. Is it normal? Or I have a bad meter?Sent from my iPhone using Tapatalk

author: gamalot
author_rank: Super Contributor
timestamp: January 14, 2023, 04:24:31 am
content: I got an email from ADCMT today that they have released their new 7482 multimeter which adds AC voltage, current, frequency and period measurements that the 7481 doesn't have.https://www.adcmt.com/en/products/dmm/7481

author: Mickle T.
author_rank: Frequent Contributor
timestamp: January 14, 2023, 09:55:43 am
content: The Model 7482 features a completely redesigned analog and digital hardware. However, unfortunately, the ADC and artifact calibration algorithms with all the ensuing problems are left almost unchanged.

author: bidrohini
author_rank: Regular Contributor
timestamp: January 15, 2023, 02:25:42 am
content: What about the price?

author: Mickle T.
author_rank: Frequent Contributor
timestamp: January 15, 2023, 06:03:12 am
content: Quote from: bidrohini on January 15, 2023, 02:25:42 am¥1,116,000 ~ $8,725

author: MrYakimovYA
author_rank: Regular Contributor
timestamp: January 17, 2023, 12:52:35 am
content: So what's the best 8.5 DMM is today?I like HP3458A in non-black case

author: Ismsanmar
author_rank: Regular Contributor
timestamp: March 07, 2025, 10:15:01 pm
content: It seems that ADCMT has 3 new toys in its portfolio, with an interesting concept.https://www.adcmt.com/products/dmm/7981

author: Vgkid
author_rank: Super Contributor
timestamp: March 08, 2025, 02:35:45 am
content: Quote from: Ismsanmar on March 07, 2025, 10:15:01 pmThe 6901/69011 seems interesting, but pricy.The 7981 is an interesting concept , almost similiar to the hp3455 reference module .