Series 390 HE/HM Semi-Micro
& Analytical Balances

With the 390 series weighing scales, you can enter the 390 Club with two models, HE and HM. With both balance models you get the most important features and functionalities as well as the option to personalize and easily upgrade the model HE. The electric draft shield can be easily opened by pressing a key and if you want to enjoy the comfort of the touchless sensor you can install it later.

You can count on the HE for your daily weighing jobs at an attractive price. The HE model is also compatible with all other applications that could be useful one day. Should you face problems with electrostatics, upgrading to add an Electrostatic Cancellation System (ECS) and even an Ambient Observation System (AOS) is possible.

The 390 HM, with manual draft shield opening is the economic version with the same measurement technology as the sister models HE, HA, and HF.

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Precisa balances are prime examples of Swiss precision, accuracy, and reliability.

They are tried and tested in both demanding laboratory environments and industrial applications and are subject to rigorous quality controls throughout the entire manufacturing process. Precisa invests continuously in developing new technologies and the result is a state-of-the-art range of precision instruments for the most exacting demands.

Precisa 390 Series F Balance, view from front

User Management

Your analytical balance can be set and optimized for various users by using the built-in, extensive user management system.

A user profile is set just once so when a user begins to work with the balance, just choose the correct profile and the balance is ready the way the user needs it, personalized with broad access rights, or just set with the basic operation facilities, like right- or left-handed user.

Touchless Sensor

The touchless sensors are very helpful when you perform daily routines with your analytical balances, like opening a draft shield door, taring or zeroing the balance or performing a special function.

You can set the built-in touchless sensors to activate those functions by a simple hand motion. The sensors can be adjusted with three detection angles to follow your own, personal needs and tasks.

It is possible to easily upgrade balances which are not fitted with this feature at a later stage.

Electrostatic
Cancellation System

All electrostatic charges are neutralized quickly by our built-in AC pulse technique utilizing an ion neutralizing system, which is engineered and manufactured together with Panasonic.

Operation is effortless. Just by placing the sample into the weighing chamber, your sample is automatically neutralized when the draft shield is closed. No laborious search for an externally installed ionizer. Retrofit installation of an ECS is possible by a local Precisa engineer.

Ambient
Observation System

Various ambient air conditions affect the weighing result. Therefore, meteorological factors such as air pressure, air humidity and air temperature are recorded with AOS. This is done in real time and inside the weighing chamber where the sample is placed.

This important parameter supports the traceability and can also provide an indication of the ambient status. The information can be recorded, used just as an indication or as an additional parameter when calculating the weighing result with the BEST app.

Communication & Interfaces

The 390 series weighing scales are ready to satisfy your communication needs with seamless connectivity, whether you are already working in a paperless lab with LIMS or not. We have equipped the balance with all the standard interfaces that are common today:

2 x USB type A (host)
1 x USB type B (device)
1 x 100M Ethernet

On the rear of the balance an RS232 and USB type B interface are included. Therefore, connecting your analytical balance to a PC or RS232 printer for protocol printout is easy and efficient. Additional interfaces such as WiFi, Bluetooth etc. are available as accessories.

Applications

You can equip your series 390 balance with useful applications, similar to a smartphone.

Applications can be easily installed by any user with the appropriate authorization, without the need of a specialist. Your requirements today may not be the same as they will be in the future. You might need to find new working methods to make the work easier.

There are affordable Precisa apps which can help and make your life a lot easier. This exclusive feature is available from Precisa Gravimetrics only.