QVT-SV: High Performance Differential Pressure Transmitter

Below, you can find the manuals for the QVT family of flow transmitters. For any questions or technical issues that you may have, please contact us for assistance.

The QVT-SV Differential Pressure Transmitter will measure the Differential Pressure (Velocity Pressure) within nearly any low pressure ductwork and will deliver either a Differential Pressure or un-compensated 4-20 mA mass flow signal. The QVT-SV can be used with Eastern Instruments brand flow elements or with any other manufacturer's brand of DP based flow elements. While the QVT-SV Differential Pressure Transmitter is perfect for any application under 9 in WC, it is especially accurate for draft range applications where the Differential Pressure can be under 1 in WC.

• MODE OF OPERATION: Differential Pressure Transmitter that will output Differential Pressure or Flow (which is uncompensated for Absolute Pressure or Temperature) via a 4-20 mA signal

• DP MEASUREMENT: Measurement of Differential Pressure across any primary flow element such as VAP Averaging Pitots or HBP Flow Conditioners

• PROCESS SEAL: Our unique method of isolating sensors from the process requires no diaphragm seal, meaning that the QVT-SV can measure a much lower DP than traditional transmitters with diaphragm seals. Sensor Isolation can be further enhanced by using a Purge Seal (Low Volume Continuous Purge coupled directly to transmitter)

• FLOW ACCURACY: Accuracy of measurement can be as high as +/-0.50% of reading over a 100:1 range in DP and a 10:1 range in flow

• RANGEABILITY: Can be ranged from 0 to 0.1 in WC up to 0 to 8 in WC

• RESPONSE TIME: Updates flow calculation 10 times a second

• FUNCTIONALITY: All measured and calculated variables are available on LCD panel

• OUTPUT: 4-20 mA output that can be set to Differential Pressure or Flow

• SIMPLICITY: Ae and the 4-20 mA full scale value are set from the LCD/push button interface

• ZERO: Differential Pressure can be zeroed from the LCD/push button interface

• POWER SUPPLY: Loop Power 8.8 to 42.5 vDC range

• VERSATILITY: LCD can be rotated independently of the head (LCD rotates 270^o and the head can rotate 180^o for ultimate adjustability)

The QVT Differential Pressure Transmitter can be used in a wide range of applications in a variety of sectors for accurate Differential Pressure based measurement. Whether coupled with an array of Eastern Instruments Insertion pitots or with another manufacturer's flow element, the QVT Differential Pressure Transmitter will accurately output either the DP or flow of air traveling through your duct work. Below are just a few applications.

QVT Cut Sheet | Air Flow Catalog

QVT Cut Sheet | Air Flow Catalog

Below, you will find a variety of product literature including product catalogs, single page cut sheets and various application guides that can assist in selecting the correct flow element for your project. If you have any questions, please feel free to contact us as well.