Category: Using your Alicat

  • FP-25 calibrator setup instructions

    FP-25 calibrator setup instructions The FP-25 can be used to audit and calibrate flow, pressure, and temperature readings for the samplers and analyzers below: PM10 and PM2.5 FRM samplers (16.7 LPM) – Mesa Labs PQ series, Met One E-FRM, Thermo Scientific Partisol 2000/2025(i) and Dichots, Tisch TE-Wilbur PM10 and PM2.5 FEM analyzers (16.7 LPM) – Environment S.A. […]

  • IP address configuration tutorial

    IP address configuration tutorial An Alicat device with Ethernet-based protocols has an IP address to distinguish it from other devices on the network. This can be set either as a static address, or an address determined by a DHCP (Dynamic Host Configuration Protocol) server. The front panel accessibility for this feature makes it possible to […]

  • Control deadband tutorial

    Control deadband tutorial The dual valve PCD-Series maintains fast, precise closed system pressure control with minimal gas waste. This stable control is primarily due to a well-balanced PD2I algorithm. However when changing conditions, like ambient temperature, affect the system, active control can over compensate and cause oscillation loops. Controller deadband can be to minimize oscillation loops […]

  • Display configuration tutorial

    Display configuration tutorial The large display on front of your Alicat can be configured to meet specific application needs. Read on to learn how to change contrast, back-light, and rotate your display 180 degrees for mounting upside-down. Video tutorial Step-by-step instructions (front panel) LCD contrast Press the bottom right button for “MENU” selection. Press the […]

  • Control loop variable tutorial: Changing between mass flow, volumetric flow, or pressure control

    Control loop variable tutorial: Changing between mass flow, volumetric flow, or pressure control An Alicat mass flow controller is usually set up to control mass flow, but it can instead be set to control pressure or volumetric flow rate. Similarly, Alicat’s liquid flow meters can measure either volumetric flow rate or gauge pressure. See below […]

  • Setpoints/setpoint limits tutorial

    Setpoints/setpoint limits tutorial An Alicat can accept a setpoint from the front panel, a serial command, or an analog signal. All you have to do is make sure the Alicat knows where to look for the setpoint. Sometimes, you may want to limit the allowable setpoints to a specific range to avoid accidental tampering with […]

  • Totalizer (controller) tutorial

    Totalizer tutorial While a meter measures the rate of flow at any given moment, a mass flow totalizer measures the total accumulated mass of a particular gas (or gas mixture) that has been flowed in a process. The totalizer function can also be used with a mass flow controller to dispense batches of set amounts […]

  • Gas Select™ and COMPOSER™ tutorial

    Gas Select™ and COMPOSER™ tutorial Alicat mass flow devices come preloaded with 98-130 selectable gases. The COMPOSER™ firmware is included on all mass flow devices and allows the user to create up to 20 different custom gas mixes. See below for instructions how to use Gas Select™ and COMPOSER™. Video tutorial Step-by-step instructions Gas Select™ […]

  • Zero band (deadband) tutorial

    Zero band (deadband) tutorial Alicat mass flow devices measure flow using differential pressure, making them very sensitive. Because of this, factors such as the air conditioning in the room may lead to small fluctuations in device readings. If you notice that your device is fluctuating around very low flow rates, you can use the zero […]

  • Changing engineering units tutorial

    Changing engineering units tutorial You can easily change the engineering units displayed on your Alicat device and/or in the serial data. You can even have the display use a different set of engineering units from the serial data. For your convenience, each device comes pre-loaded with all relevant engineering units. See below for instructions on […]