TESTO 420 Instruction Manual
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TESTO 420 Instruction Manual

Differential pressure instrument
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testo 420 ·Differential Pressure Instrument
Instruction manual
Testo-Direct
info@Testo-Direct.ca
1.800.561.8187
www.
.ca

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Summary of Contents for TESTO 420

  • Page 1 420 ·Differential Pressure Instrument Instruction manual Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 2: Table Of Contents

    Transferring measurement data to the PC ........16 Maintaining the product ................ 17 8.1. Cleaning the instrument ..............17 Tips and assistance ................17 9.1. Questions and answers ..............17 9.2. Accessories and spare parts ............18 Authorizations ..................19 Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 3: Safety And The Environment

    Result of an action. Menu Elements of the instrument, the instrument display or the program interface. [OK] Control keys of the instrument or buttons of the program interface..| ... Functions/paths within a menu. “...” Example entries Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 4: Ensure Safety

    As is common practice, Testo generally excludes support, warranty or guarantee claims relating to functionality that has not been guaranteed by Testo as part of the product offered. Claims shall also be excluded in the event of improper use or handling of the products, e.g. in combination with unauthorised third-party products.

  • Page 5: Protecting The Environment

    Pitot tube measurements and pressure measurements for air conditioning and ventilation systems. Thanks to its interchangeable flow hoods, the testo 420 can be used for air inlets and outlets of various sizes. With the additional App (Android/iOS), the readings can be conveniently displayed on a tablet or smartphone, and in addition a measurement can be started, stopped and saved via the App.
  • Page 6 / K (deviating from 22 °C, in the range 0 to 60 °C) Response time t90 Flow velocity: approx. 1 s Volume flow: approx. 1 s Pressure (absolute pressure): approx. 1 s Pressure (differential pressure): approx. 1 s Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.
  • Page 7 4 x 1.5 V rechargeable/non-rechargeable batteries Type AA / alkaline manganese, mignon Battery lifetime: approx. 40h (eroing interval 10 seconds, display illumination off, Bluetooth off) Display Type: Dot matrix Dimensions: 3.5 inches Directives, EU guideline: 2014/30/EU standards and tests Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 8: Product Description

    5 Product description Product description 5.1. Overview Overview of testo 420 1 Battery compartment, on rear of the instrument 2 Display 3 Control keys 4 Probe socket Mini-DIN (only for use on the measurement base) 5 Micro-USB port 6 Connection for pressure measurement...
  • Page 9 The Pitot tube factor for Pitot tubes is Pitot Tube factor generally the same and must be entered: (P-factor) • Pitot tubes from Testo: 1.00 • Pitot tubes from other manufacturers: the Pitot tube factor can be found in the instruction manual or you should ask your supplier.

  • Page 10: First Steps

    Display Explanation ►, ▲, ▼,◄ Change parameter, select unit Confirm input 1. Menu Level 2. Menu Level 3. Menu Level Application Flow Hood K-factor Actual/Standard Pitot tube Duct Pitot tube factor Pitot Temperature Actual/Standard Pressure only Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.
  • Page 11 Set Date&Time Gliding average 5 – 20 sec Hood adjustment Supply Air Exhaust Air Zeroing int 1-20 sec Reset Device Maximum of 15 minutes, measuring cycle 1 second Maximum of 25 points and 1 minute per point. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 12: Using The Product

    Switching Bluetooth® on and off In order to be able to establish a connection via Bluetooth, you need a tablet or smartphone with the Testo App testo 420 already installed on it. You can get the App for iOS instruments in the App Store or for Android instruments in the Play Store.

  • Page 13: Settings For The Measurement

    The zeroing interval can be set between 1-20 seconds. 7.3. Measuring 7.3.1. Pitot tube measurement 1. Connect the hoses to the testo 420 and to the Pitot tube. 2. Press -> Application -> Pitot tube and there set the duct geometry, the Pitot tube factor and the temperature, and choose between actual and standard.

  • Page 14: Differential Pressure Measurement

    For Pitot tubes from other manufacturers, refer to the instruction manual for the Pitot tube factor or ask your supplier. 7.3.2. Differential pressure measurement 1. Connect the hoses to the testo 420 at + and -. 2. Press -> Application ->...

  • Page 15: Transferring Measurement Data To The Pc

    FAT format is always selected under the file system. 1. Connect the testo 420 to your PC using the USB cable. The testo 420 switches on automatically, a window appears on the PC, select Open folder here.

  • Page 16: Maintaining The Product

    Tablet work. or Smartphone via Bluetooth and the App is active. • Warning message Function not • Fully close the App or end the available in Bluetooth Bluetooth connection. mode. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 17: Accessories And Spare Parts

    (Connection hose required) Connection hose 0554 0453 For a complete list of all accessories and spare parts, please refer to the product catalogues and brochures If you have any questions, please contact your dealer. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

  • Page 18: Authorizations

    10 Authorizations Authorizations Please note the following country-specific information for the product authorization. Testo 420 Product 0560 0420 Mat.-No. Country Comments Australia E1561 RCM mark Supplier identification Authorized Zealand Turkey Authorized Canada Product IC ID: 12231A-05600420 IC Warnings China CMIIT ID: 2015DP4400...
  • Page 19 Este equipamento opera em caráter secundário, isto é, não tem direito à proteção contra interferência prejudicial, mesmo de estações do mesmo tipo e não pode causar interferência a sistemas operando em caráter primário. Taiwan NCC: CCAB16LP2190T1 Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.
  • Page 20 • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.
  • Page 21 (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. KCC Warning 해당 무선 설비는 운용 중 전파혼신 가능성이 있음 Japan Information 当該機器には電波法に基づく、技術基準適合証明等を受けた特定無線設備を装着してい る。 Testo-Direct info@Testo-Direct.ca 1.800.561.8187 www.

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