Series 390

Semi-micro and Analytical Balances

With the series 390 and the related models HF, HA, HE and HM Precisa is setting new standards. With the easy to use menu, inspired by to the top smartphones, you will be familiar within seconds with your unique balance and exploit its full potential.

The frameless draft shield glass allows a barrier-free view and easy access into the weighing chamber. The draft shield glasses can be dismantled for cleaning within seconds without the need of any tools. All glasses, the weighing pan and other parts can be easily cleaned in a dishwasher.

With four different models HF, HA, HE and HM we cover your needs and you get exactly what you want. With exception of the entry-level model HM with a mechanical draft shield you can upgrade your balance with those applications and features you need in the future. Or simply choose the series 390 model HF to have the balance with everything equipped.

  • Features
  • Resources
  • High end weighing cell: High resolution with optimized electronic control
  • Housing: Die-cast aluminium base and sturdy sheet metal housing
  • Touch screen: 7“ anti-reflective with high resolution. Shock and scratch resistant, approved to operate with standard laboratory gloves and UV resistant, frameless for perfect and easy cleaning.
  • Context help: Just press the Help Icon, the balance immediately displays the relevant support and assistance in the current context.
  • Draft shield: Ambidextrous mechanical, electronical by a fingertip or even automatically with the Precisa unique touch less sensor (TLS)
  • Self-linearization system: Fully automatic internal self-linearization and calibration system, programmable time and temperature controlled (SLS)
  • Stability indicator: Provides visual real time indication and information about the balance environment at your working place.
  • Electronic level: Electronic observation of levelling anytime and easy adjustment with visual support.
  • Versatile Interfaces: As standard 2x USB Type A (Host), 1x USB Type B (Device), 100M Ethernet and RS232/V24 bi-directional
  • App's: Upgrade your balance with APP's from the Precisa website
  • User management: Extensive user management with various possibilities and access rights.
  • GLP compliance: Built in clock with date and time beside all the other needs to assure GLP conformity.
Features (all models)
  • Swiss made
    Swiss made
  • Colour touch screen
    Colour touch screen
  • Self-Linearization-System
  • Self-Calibration-System
  • External calibration
    External calibration
  • Easy alphanumeric input
    Easy alphanumeric input
  • RS232 interface for PC / printer
    RS232 interface for PC / printer
  • USB device
    USB device
  • USB host
    USB host
  • Communication options
    Communication options
  • Ethernet
  • WiFi
  • Human interface device
    Human interface device
  • EU/OIML type approval
    EU/OIML type approval *
  • Support IQ/OQ/PQ
    Support IQ/OQ/PQ
  • Anti-theft protection
    Anti-theft protection
  • Direct tare and reference weight entry
    Direct tare and reference weight entry
  • Clock (printout GLP/GMP, auto-cal, etc.)
    Clock (printout GLP/GMP, auto-cal, etc.)
  • Internal audit trail
    Internal audit trail
  • Below balance weighing
    Below balance weighing
  • Optional evaporation trap for pipette calibration
    Optional evaporation trap for pipette calibration
* not available for H_ 520A
Applications (all models)
  • Variety of measurement units
    Variety of measurement units
  • Percent weighing
    Percent weighing
  • Piece counting
    Piece counting
  • Animal weighing
    Animal weighing
  • Check weighing
    Check weighing
  • Net total application: Add up summation
    Net total application: Add up summation
  • Free conversion Area conversion
    Free conversion Area conversion
  • Statistics
  • Recorder
  • Dynamic weighing and differential weighing (weighing on ship)
    Dynamic weighing and differential weighing (weighing on ship)
  • Minimum sample weight according to USP
    Minimum sample weight according to USP
  • Automatic repeatability test
    Automatic repeatability test


Models: Capacity: Readability:
H_ 125SM 125 g 0.01 mg
H_ 125SM-FR 61 g / 125 g 0.01 mg / 0.1 mg
H_ 225SM-DR 102 g / 225 g 0.01 mg / 0.1 mg
H_ 225SM-FR 61 g / 225 g 0.01 mg / 0.1 mg
H_ 120A 120 g 0.1 mg
H_ 220A 220 g 0.1 mg
H_ 320A 320 g 0.1 mg
H_ 520A 520 g 0.1 mg

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