TESTO 420 Instruction Manual
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TESTO 420 Instruction Manual

Flow hood
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testo 420 · Flow Hood
Instruction manual
Testo-Direct
formation@ITM.com
1.800.561.8187
www.
.ca

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Summary of Contents for TESTO 420

  • Page 1 420 · Flow Hood Instruction manual Testo-Direct formation@ITM.com 1.800.561.8187 www.
  • Page 2 Testo-Direct formation@ITM.com 1.800.561.8187 www.

  • Page 3: Table Of Contents

    Product description ................10 4.1. Overview..................10 4.1.1. Measurement setup ..................10 4.1.2. Overview of testo 420 ..................11 First steps ....................13 Using the product .................. 15 6.1. Switching Bluetooth® on and off............ 15 6.2. Settings for the measurement ............16 6.2.1.

  • Page 4: 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 formation@ITM.com 1.800.561.8187 www.

  • Page 5: Ensure Safety

    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: Use

    Volume flow: m³/h / cfm / l/s Pressure (absolute pressure): hPa / mbar / kPa Pressure (differential pressure): Pa / hPa / mbar / mmH O / inH Measuring cycle 1/sec Interfaces Probe interface Mini DIN Micro USB Testo-Direct formation@ITM.com 1.800.561.8187 www.
  • Page 7 Error absolute pressure compensation: ±0.04% of m.v. / hPa deviating from 1013 hPa All accuracy specifications apply under laboratory conditions or with necessary compensation (correction factor) with the standard hood 610x610 mm. Minimum outlet size of 360x360 mm Testo-Direct formation@ITM.com 1.800.561.8187 www.
  • Page 8 Measuring instrument housing material: ABS measurement setup Body material: PP Standard hood material: Nylon Measuring instrument dimensions: 150x85x35 mm Body dimensions: 490x970x610 mm Dimensions of measurement setup with standard hood: 610x970x610 mm Weight of entire measurement setup approx. 2900 g Testo-Direct formation@ITM.com 1.800.561.8187 www.
  • Page 9 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 Warranty Duration: 2 years Warranty terms: see website www.testo.com/warranty Testo-Direct formation@ITM.com 1.800.561.8187 www.

  • Page 10: Product Description

    Product description 4.1. Overview 4.1.1. Measurement setup 1 Volume flow hood (standard hood 610x610 mm) 2 Actuator for manual measurement 3 Measuring instrument testo 420 4 Measurement base with differential pressure cross 5 Integrated flow straightener Testo-Direct formation@ITM.com 1.800.561.8187 www.

  • Page 11: Overview Of Testo 420

    4 Product description 4.1.2. 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 12 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 13: First Steps

    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 Measuring Program Single Measurment Continous Measurement Maximum of 15 minutes Testo-Direct formation@ITM.com 1.800.561.8187 www.
  • Page 14 Bluetooth On/Off Date&Time Date Format Time Format Set Date&Time Gliding average 5 – 20 sec Hood adjustment Supply Air Exhaust Air Zeroing int 1-20 sec Reset Device Maximum of 25 points and 1 minute per point. Testo-Direct formation@ITM.com 1.800.561.8187 www.

  • Page 15: 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 16: Settings For The Measurement

    The pressure sensor carries out automatic zeroing at regular intervals. These intervals can be set via the automatic zeroing. 1. Press , then select Device settings Zeroing int. The zeroing interval can be set between 1-20 seconds. Testo-Direct formation@ITM.com 1.800.561.8187 www.

  • Page 17: Volume Flow Measurement Setup

    4. Push the support rods through the hood, along the markings and into the funnel in the measurement base. 5. Push the support rods on the top of the hood into the brackets. The hood is installed. Testo-Direct formation@ITM.com 1.800.561.8187 www.
  • Page 18 5. Push the support rods through the hood, along the markings and into the funnel in the measurement base. 6. Push the support rods on the top of the hood into the brackets. The hood is installed. Testo-Direct formation@ITM.com 1.800.561.8187 www.
  • Page 19 6 Using the product Attaching the measuring instrument 1. Push the testo 420 completely into the instrument holder, pay attention to the catch on the right-hand and left-hand side in the bracket. Testo-Direct formation@ITM.com 1.800.561.8187 www.

  • Page 20: Measuring

    6.4.2. Pitot tube measurement 1. Remove the testo 420 from the measurement base. 2. Connect the hoses to the testo 420 and to the Pitot tube. 3. Press -> Application ->...

  • Page 21: Differential Pressure Measurement

    6 Using the product 6.4.3. Differential pressure measurement 1. Remove the testo 420 from the measurement base. 2. Connect the hoses to the testo 420 at + and -. 3. Press -> Application -> Pressure only. 4. Carry out the measurement.

  • Page 22: Transferring Measurement Data To The Pc

    PC. The existing Bluetooth connection is aborted. 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. The folders and files saved on your testo 420 are displayed.

  • Page 23: 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 formation@ITM.com 1.800.561.8187 www.

  • Page 24: Accessories And Spare Parts

    0554 0453 Tension rod 0440 4201 For a complete list of all accessories and spare parts, please refer to the product catalogues and brochures or visit our websit If you have any questions, please contact your dealer Testo-Direct formation@ITM.com 1.800.561.8187 www.

  • Page 25: Authorizations

    9 Authorizations Authorizations Please note the following country-specific information for the product authorization. European Union, EFTA countries Testo-Direct formation@ITM.com 1.800.561.8187 www.
  • Page 26 Japan Australia E 1561 China CMIIT ID: 2015DP4400 Korea Certification No. MSIP-CMM-Toi-420 해당 무선 설비는 운용 중 전파혼신 가능성이 있음 Turkey Authorized. Hongkong Authorized. Testo-Direct formation@ITM.com 1.800.561.8187...

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