Technical Data - testo 540 Manual De Instrucciones

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
· Sensor:
Photo diode
· Parameters:
2
Lux (lm/m ), foot candle (lm/ft
· Measuring ranges:
0...99999 Lux, 0...93000 ftc
· Resolutions:
1 Lux (0...19,999 Lux), 10 Lux (rest of
range)
0.1 ftc (0...1,858.0 Lux), 1 ftc (rest of
range)
· Accuracies (Nominal temperature
25 °C, ±1 Digit):
± 3 % to reference (Class B, DIN 5032
part 7)
· Measuring rate:
0.5 s
Further instrument data
· Protection class: IP40
· Ambient conditions:
0...50 °C, 32...122 °F
2
)
· 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:2004/108/EEC
Warranty
· Duration: 2 years
· Warranty conditions: see guarantee
card
Specifications 13