DPC mass flow controller
** For LOW DIFFERENTIAL PRESSURE models, please contact us **
Aalborg Instruments’ DPC series precision digital mass flow controllers provide accurate and stable control of mass flow rate, of process gases. Inherent simultaneous displays of Mass Flow, Volumetric Flow, Pressure and Temperature parameters promote applications in a variety of industries such as scientific and analytical applications, bioreactors and surface depositions, gas sampling, manufacturing and metrology activities.
DPC precision digital mass flow controllers incorporate multi-gas functionalities allowing users on site to select up to 30 different gases locally via optional OLED/Joystick interface, remotely via the RS232/RS485 interface or optional ModBus RTU interface.
DPC flow controllers support various functions including: user selectable local, analog, digital or program set point control, two programmable flow totalizers, LOW, HIGH or RANGE FLOW, temperature and pressure alarms, automatic zero adjustment (activated via local or communication interface), programmable SSR relay, programmable 0-5 Vdc, 0-10 Vdc or 4-20 mA analog inputs and outputs, user-programmable pulse output (via SSR), and extensive self-diagnostics functionality. AALBORG DPC series differential pressure mass flow controller features totalizers with batch processing mode, ±(0.5% RD + 0.2% FS) standard accuracy, 200:1 turn-down ratio and less than 150 ms response time.
Significant savings are apparent, comparing to the cost of a single DPC embodying these features, with that of acquiring and installing multiple, application-specific devices.
Principles of Operation
Operation of DPC mass flow controllers is based on the measurement of the differential pressure across specially designed restrictor flow elements (RFE). The restrictor flow element is designed to establish laminar flow across the entire range of the instrument’s operation from 0 to 133% of full scale range. A high accuracy and high resolution differential pressure sensor is utilized to measure pressure drop across a laminar flow channel, which is linearly proportional to volumetric flow rate. To convert volumetric flow into mass flow, high accuracy and high resolution absolute pressure and temperature sensors are utilized. Based on data from the sensors and gas properties from the built-in gas database of the instrument, the micro-controller calculates volumetric and mass flow, which along with pressure and temperature parameters are available on the instrument display as well as via digital interfaces RS-232, RS-485 or optional ModBus RTU. In addition, the mass flow reading is accessible via the instrument analog interface which can be set by user to 0-5 Vdc, 0-10 Vdc or 4-20 mA mode.
DPC literature model DPC multi-parameter, multi-gas, differential pressure mass flow controller catalog page(s)
DPC Operating Manual Operating Manual DPC Precision Digital Mass Flow Controllers - TD-DPC-0G, June-2024
DPCM Modbus Manual Operating Manual Modbus Interface DPC/DPM Instruments DPMC Modbus Manual - TD-DPCM-MB-0319, Mar-2019
DPCM Configuration Utility DPCM Configuration Utility Software (for DPM and DPC instruments) Version: 1.0.0.7 (Build 0.0.05)
User's Guide to DPM/DPC LabVIEW Driver Library User's Guide to DPM/DPC LabVIEW Driver Library (for DPM and DPC instruments) - TD-DPCM-0321-LVD Rev:A
DPCM LabVIEW Driver Library DPCM LabVIEW Driver Library Software (for DPM and DPC instruments) Version:1v1
Digital and Analog Flow Meters Catalog Full line Digital and Analog Flow Meters, Controllers, Valves and Accessories Catalog
Calibration Services Calibration Services
Rotameter Catalog Full line Rotameter and Valves Catalog
