Parshvi Technology (India) Private Limited

DPT-Flow is a flow transmitter that provides a new and easy way to measure the flow rate on centrifugal fans.One device is suitable for a range of different fan types. It also provides an easy way to measure flow rate in a duct system. The device is supplied with an optional FloXact^TM averaging measurement probe.

Usage:

The DPT-Flow is designed for air handling units to measure the air flow on centrifugal fans. The DPT-Flow can be used as an on-site display for flow or as a transmitter to regulate the air flow on a selected fan or blower. The DPT-Flow can also be used in the duct system or in air handling units as an on-site display for flow or as a transmitter to regulate the air flow in a duct. The device can be used with several different measurement probes such as FloXact^TM or pitot tube, and air dampers. The requirement is that the K-value of the measurement probe or damper is known.

DPT-Flow series devices include:

• Two field selectable functions:
• Measure and monitor in-duct volume flow, velocity or differential pressure
• Measure and monitor air flow across centrifugal fans

Multiple field selectable measurement units:

• Volume flow: m3/s, m3/h, cfm, l/s
• Velocity: m/s, ft/min
• Pressure: Pa, inWC, mmWC, kPa, mbar, psi

 

Unique proportional output options:

• Volume flow or velocity: voltage (0–10 V) or current (4–20 mA)
• Pressure: voltage (0–10 V) or current (4–20 mA)

DPT-Flow series device options offer:

• AZ (autozero) function for automatic zero point calibration, eliminating the need for periodic manual autozeroing to ensure long term accuracy

Applications:
AVT series devices are commonly used in HVAC/R systems for:

• Air flow monitoring across centrifugal fans and blowers
• In-duct temperature monitoring
• VAV applications

The AVT is an electronic air velocity and temperature transmitter for air and non-combustible gases with optional relay output. AVT series air velocity transmitters are engineered for building automation in the HVAC/R industry. The AVT measures air velocity and temperature, with ???eld selectable range and output options in a single device. Designed with a duct mount probe and adjustable collar suitable for round or rectangular ducts.

AVT series devices include:

• 3 field selectable measurement ranges for air velocity, selectable via jumper.
• Separate readings and outputs for air velocity and temperature.
• Proportional output options include: voltage (0–10 V) and current (4–20 mA).

AVT series device options offer:

• Backlit display
• Field adjustable relay

Applications:
AVT series devices are commonly used in HVAC/R systems for:

• In-duct air flow and velocity monitoring
• In-duct temperature monitoring
• VAV applications

Stack Air Velocity Transmitter with S -Type Pitot Tube


The easiest way to determine Flow Velocity is to measure the Velocity Pressure in the duct with a S -type Pitot Tube Assembly connected to a differential pressure transmitter cum air velocity transmitter.

The S - type pitot Assembly includes a Static Pressure Probe and a Total Pressure Probe. A Total Pressure Probe, aligned into the airflow, senses the duct velocity pressure and the static pressure, which equals the total pressure. A Static Pressure Probe aligned at a right angle to the airflow senses only the static pressure. The difference between the total pressure reading and the static pressure reading is the Velocity Pressure. If you connect the Total Pressure Probe to the HIGH port on a differential pressure sensor and the Static Pressure Probe to the LOW port on the differential pressure sensor, then the sensor’s output will be the Velocity Pressure, as shown in the figures below.


To calculate Air Flow in Cubic Feet per Minute (CFM), determine the Flow Velocity in feet per minute, then multiply this figure by the Duct Cross Sectional Area. Air Flow in CFM (Q) = Flow Velocity in Feet per Minute (V) x Duct Cross Sectional Area (A)

Additional Information:

• Delivery Time: Ready stock

A reliable and accurate portable instrument for measuring pressure and differential pressure and air velocity. (with pitot tube).


Features:

• High-end pressure gauge for differential pressure and flow measurements
• Adjustable pitot factor and density
• Zero-point correction at the push of a button
• Min./max. value memory
• Temperature measurement

Measurement range 

1. ±200 Pa (±2 mbar) 1.5..18 m/s 
2. ±2 kPa (±20 mbar) 5..58 m/s 
3. ±20 kPa (±200 mbar) 15..180 m/ s 
4. ± 200 kPa (±2000 mbar) 

The vibration monitor type HE055 is an IO Link sensor for measuring the vibration speed/acceleration and can be used, for example, to monitor the absolute bearing vibration on machines based on the DIN ISO 10816 standard.


Features: 

• Crest value / bearing condition parameter
• Two freely configurable outputs
• Output 1: IO-Link or digital switching output
• Output 2: Analog current output (4...20 mA) or digital switching output. Many setting options available
• Configurable frequency range, e.g. 1 ... 1000 Hz or 1 Hz ... 500 Hz or 10 ... 1000 Hz or 10 Hz ... 500 Hz
• Optional functional safety SIL 1

Request product

Additional Information:

• Delivery Time: 6 weeks

The transmitters of the 985V series are used to measure volume flow or flow velocity and pressure. A jumper enables switching between volume flow or flow velocity and pressure measurement.

Application:

• HVAC systems
• Velocity meansurement in duct
• ID / FD Fan - Flow measurement 

• Setting ranges:
  Depending on type between 0 to 100 mbar
• Temperature range:
  Working and storage temperature from -20°C to +70°C
• Process connection:
  Hose connection with 4 / 6 mm outer diameter
• Supply voltage:
  18 to 30 VAC / VDC
• Output signal(3-wire):
  0 - 10 V
  4 - 20 mA
• Electrical connection:
  Plug-in terminals for wires and strands up to 1.5 mm2 or
  circular connectors M12 / 4-pole
• Protection class:
  IP65 acc. to EN 60529

Additional Information:

• Item Code: 985V
• Delivery Time: Ready stock
• Packaging Details: Box Packing