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Digital 306 Flow Meter / Digital 308 Controller

Teledyne Hastings' high-flow digital flow measurement and control product.

Introducing HFM-D-306A and HFC-D-308A models.

Large flow rates of 2,500 slm to 10,000 slm based on nitrogen can be measured and controlled.

It boasts a high accuracy of ± (FS +0.2% / Reading 0.5%).

The HFM-D-306A model uses a microprocessor-based circuit.

It provides a linearized response with excellent accuracy.

The HFC-D-308A model is based on the technology of the HFM-D-306A model.

Digital flow measurement and controller.

The digital model ensures a quick response of the valve,

Can be optimized for flow applications up to 10,000 sml

Provides flow control function.


  • 0 - 2,500 slm ~ 0 - 10,000 slm (based on N2)

  • ± (FS +0.2% / Reading 0.5%)

  • Pressure limit 300 PSI

  • RS 232 / RS 485

  • NIST NIST Traceable Calibration

  • Total flow calculation

  • auto zero


  • alternative energy

  • Fuel Cell R&D

  • For secondary calibration reference

  • special gas transport

  • For custody transfer

  • Gas Purification

Digital Mass Flow Series

Mass Flow technologies are the same as rotor meters and turbine meters.

It is more stable and more stable than the measurement method using volume.

Repeatable and accurate gas flow measurement is possible.

HFM-D-3XXA Series Mass Flow Meters and Controllers

It has a measurement range of 0-5 sccm to 0-10,000 slm,

It is made of stainless steel and all sealing is treated with metal.

Provides analog and digital outputs.

Digital functions include self-diagnostics of valves and overflows.

and can detect auto-zero function and valve open.

It can store 10 different gases and flow values, so various gases can be stored.

It provides great cost and time efficiencies when monitoring and also allows total flow calculations within your setpoint.

Error rate example - ± (FS +0.2% / Reading 0.5%) at 3,000 slm


  • Proven reliability

  • 5 sccm ~ 10,000 slm (based on N2)

  • NIST NIST Traceable Calibration

  • Total flow calculation

  • auto zero


  • university study

  • leak test

  • vapor deposition

  • pharmaceutical process

  • R&D Process Flows

  • semiconductor process

  • gas mixing

  • Thermal Flame Spray

  • Other high-accuracy applications


  • THCD-100 (1 Channel)

  • THPS-400 (4 Channel)

  • Cables

About Teledyne Hastings Instruments

Teledyne Hastings Instruments (THI) was founded in 1944 as Hastings.

Manufacturer of reliable, high-quality vacuum and gas mass flow meters for over 70 years to date.

In 1968, it was acquired by Teledyne and became part of the Teledyne Instruments Group.

To improve productivity, monitor critical manufacturing processes, conserve energy and protect the environment.

Responsible for special equipment offering innovative measuring devices.

THI company has obtained CE mark and ISO9001-2000 certification as an international quality certification,

In particular, it complies with the general requirements for the qualification of ISO 17025 testing and calibration laboratories.

THI's vacuum line includes thermocouple-type DV-4 and DV-6 sensors, ionization-type IGE 3000 sensors, etc.

We offer a wide range of products to measure a wide range from 10³ (1kilo Torr) to ultra-high vacuum 10⁻¹⁰ Torr.

In addition, in the Mass Flow line, from 5 sccm to 15,000 slm

We provide highly reliable Meter and Controller products with various flow rates.

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