Lux Meter with data logger PCE-174
for measuring light with memory and interface

The Lux Meter with memory PCE-174 for up to 16,000 readings is used for measuring light in the industry, agriculture and research. The Lux Meter is also used in oder to determine illumination at the workplace, shop window displays and by designers. It meets with all international standards within the category for luxmeters.
The Lux Meter displays measurement results in lux and footcandle. Please consider that 1 FC is equal to 10.70 lux. The device automatically detects the peak value, when this value is retained for a minimum 10 µs. Thanks to the possibility to select the measurement range, the Lux Meter PCE-174 is a high precision instrument. It is easy to use. This Lux Meter can also be used by inexperienced personnel. Of course, when light is measured, the ambient conditions must be taken into consideration. As such, the distance must be fixed and the angle between the Lux Meter and the object that is measured in order to obtain results of the highest repeatability.
Here is a table of minimum values that should be regularly maintained inside, although outside values are substancially higher. The following links show a conversion table for the measurement of lux and a lux meter with similar technical specfications but with neither a memory nor an interface (Lux conversion / Lux Meter PCE-174). Here is an overview of the Lux Meters that we have available.

- Easy to use

- Minimum, maximum and hold functions

- Backlight display

- 3 3/4 digit LCD; with 41 segment graphic bar

- Displays readings in lux or footcandle

- Battery level indicator

- Auto shut-off
 

- The Overload indicator shows when the

  measurement range has been exceeded

Lux Meter PCE-174 with light sensor and data logger

Included is software to transmit and analyse stored  data (a capacity for up to 16,000 readings, similar to the image on the left).

Technical Specifications

Ranges

40.00 / 400.0 / 4000 / lux
40.00 / 400.0 klux
40.00 / 400.0 / 4000 / fc
40.00 kfc

Resolution

0.1 / 1 /10 / 100 lux
0.01 / 0.1 / 1 / 10 FootCandle

Accuracy

±5% of reading ±10 digits (<10,000 lux)
±10% of reading ±10 digits (>10,000 lux)

Repeatability

±3%

Memory

16,000 readings

Rate of measurement

between 2 seconds and 99 seconds

Overload indicator

OL = Overload

Screen refresh rate

1.5 per second

Operating conditions

0 to 40ºC / 80% r.h.

Display

3¾ digit LCD

Power

9V battery

Dimensions

Device:                203 x 75 x 50mm 
                          (width x height x depth)
Light sensor:        115 x 60 x 20mm 
                          (width x height x depth)
Cable length:        150cm

Weight

280g

Standards

Safety: IEC-1010-1; EN 61010-1
EMV: EN 50081-1; EN 50082-1 corresponding to DIN 5031; DIN 5032

Images of the Lux Meter with data logger PCE-174

Lux Meter measurements of light density

Light density unit L is candela per square metre (cd/m²), this unit used by the Lux Meter includes the origin of the quantity, that is intensity of the light emitted l per surface angle A, ε angle.
L=I/A*cos( ε).

In brief, light density provides with clarity of a surface which emits light or of a heat source. The sun has a light density of approx. 1 Mrd. cd/m², discharge lamps about 10,000 cd/m². In the Anglo-Saxon area, the unit foot lambert (ftl) is also used to measure light intensity. This unit is also displayed in the lux meter if you wish. 
1 ftl = (1/π) cd/ft² = 3,426 cd/m².

Delivery contents
Lux Meter PCE-174, light sensor, software, USB cable, battery, carrying case and user's manual

Optional accessories for the Lux Meter
- ISO laboratory calibration with certificate
An ISO certification which consists of a laboratory calibration and a certificate according to the ISO standard. The document shows the name of the company or person who owns the Lux Meter