540 - Detector Testo - Free user manual and instructions

USER MANUAL 540 Testo

Auto off function: OFF, ON Switching the instrument on Press

Switching the display light on (for 10s) Instrument on > press Select display size Instrument on > select with

lux, ftc Select display mode Instrument on > select with

Current reading > Hold: Readings are held > Max: Maximum values > Min: Minimum values Switching the instrument off: Instrument on >press and hold 2s. deenfresitptsvnl????Safety and the environment12 Safety and the environment About this document

• Please read this documentation through carefully and familiarise yourself with the product before putting it to use. Keep this document to hand so that you can refer to it when necessary. Hand this documentation on to any subsequent users of the product.

• Pay particular attention to information emphasised by the following symbols: Important. Avoid personal injury/damage to equipment

• Only operate the measuring instrument properly, for its intended purpose and within the parameters specified in the technical data. Do not use force.

• Never store the product together with solvents, acids or other aggressive substances.

• Only carry out the maintenance and repair work that is described in the documentation. Follow the prescribed steps when doing so. Use only OEM spare parts from Testo. Protecting the environment

• Take faulty rechargeable batteries as well as spent batteries to the collection points provided for them.

• Send the product back to Testo at the end of its useful life. We will ensure that it is disposed of in an environmentally friendly manner.Specifications 13 Specifications Functions and use The testo 540 is an illuminance measuring instrument. It is normally used to measure illuminance, e.g. at workplaces. Technical data Measurement data

• Measuring ranges: 0...99999 Lux, 0...9300 ftc

• Resolutions: 1 Lux (0...19,999 Lux), 10 Lux (rest of range)

0.1 ftc (0...1,860 ftc), 1 ftc (rest of

• Accuracies (Nominal temperature 25 °C, ±1 Digit): ± 3 Lux or ± 3 % to reference (Class B, DIN 5032 part 7)*

• whichever is the greater Further instrument data

• Storage/transport conditions: -40...70 °C, -40...158 °F

• Voltage supply: 2x 1.5 V type AAA

• Battery life: 200 h (without display light)

• Dimensions: 133x46x25mm / 5.2x1.8x1.0 in (inc. protection cap)

• Weight: 95 g / 3.4 oz (inc. batteries and protection cap) Directives, standards and tests

• EC Directive:2014/30/EU Warranty

• Duration: 2 years, warranty conditions: see www.testo.com/warranty deenfresitptsvnl????Product description14 Product description At a glance Protection cap: Park position Light sensor Display Control keys Battery compartment (on rear) First steps Inserting batteries: 1 To open the battery compartment, push the battery cover down. 2 Insert batteries (2x 1.5 V type AAA). Observe the polarity! 3 To close the battery compartment, push the battery cover back on. Basic settings (configuration mode): Adjustable functions
• Auto off function: OFF, ON (instrument switches off automatically if no key is pressed for 10 minutes) 1 When switching the instrument on, press and hold until and appear on the display (configuration mode).

The adjustable function is displayed. The current setting flashes. 2 Press ( ) several times until the desired setting flashes. 3 Press ( ) to confirm the input. - The instrument changes to measuring mode.Using the product 15 Using the product To guarantee correct readings: Hold the instrument horizontally so that the light sensor is directed upwards. Switching the instrument on: Press

- Measuring mode is opened. Switching the display light on: The instrument is switched on. Press

- The display light goes out automatically if no key is pressed for 10 seconds. Changing the parameter unit: Press until the desired unit appears. Adjustable units

• ftc Changing the display view: Adjustable views

• Hold: Readings are held.

• Max: Maximum values since the instrument was last switched on or last reset.

• Min: Minimum values since the instrument was last switched on or last reset. Press several times until the desired view appears. Resetting Max/Min values: 1 Press several times until the desired view appears. 2 Press and hold until - - - - appears. 3 Repeat steps 1 and 2 for all values that are to be reset. Switching the instrument off: Press and hold until the display goes out. deenfresitptsvnl????Maintaining the product16 Maintaining the product Changing batteries: 1 To open the battery compartment, push the battery cover down. 2 Remove used batteries and insert new batteries (2x 1.5 V type AAA). Observe the polarity! 3 To close the battery compartment, push the battery cover back on. Cleaning the housing: Clean the housing with a moist cloth (soap suds) if it is dirty. Do not use aggressive cleaning agents or solvents!Tips and assistance 17 Tips and assistance Questions and answers Question Possible causes/solutions Hi · Readings outside the measuring range (too high: Keep to the permitted measuring range.

0.1 ftc (0...1,860.0 Ëþêñ), 1 ftc (â