DVM501 VELLEMAN
4
7. Recommended illumination: see table below.
conference room, reception area
200 – 750 Lux
clerical work
700 – 1500 Lux
At the Office
Typing, drawing
1000 – 2000 Lux
packing work
150 – 300 Lux
production lines
300 – 750 Lux
inspection work
750 – 1500 Lux
In a Factory
electronic parts assembly line
1500 – 3000 Lux
public room, cloakroom
100 – 200 Lux
In a Hotel
Reception
200 – 1000 Lux
staircase
150 – 200 Lux
show window
750 - 1500 Lux
Store
front of show window
1500 – 3000 Lux
sick room, warehouse
100 - 200 Lux
operating room
300 – 750 Lux
Hospital
Emergency room
750-1500 Lux
auditorium, gymnasium
100 – 300 Lux
classroom
200 – 750 Lux
School
library, laboratory
500 - 1500 Lux
c) Measuring Humidity
1. Set the selection switch (#2) to the %RH position.
2. Read the measured value from the LCD.
3. The device needs a couple of minutes to catch up when the relative humidity of the tested area changes.
d) Temperature Measurements
1. Set the selection switch (#2) to the 0.1°C or 1°C position.
2. Read the measured value from the display.
3. Insert the temperature probe in the appropriate sockets: black plug in COM, red plug in V/
Ω
/mA/°C.
4. Touch the target surface with the extremity of the probe and read the measured temperature from the LCD.
e) Voltage Measurements
NOTE: to avoid damage to the device, don't measure values over 600Vdc or ac rms.
1. Set the selection switch (#2) to the desired Vdc or Vac position.
2. Plug the black test lead in COM and the red test lead in V/
Ω
/mA/°C and put them over the load to be measured.
3. Read the measured value from the LCD. When measuring Vdc, the polarity of the red test lead will be indicated.
f) Current Measurements
NOTE: to avoid damage to the device, don't measure values over the selected value.
1. Set the selection switch (#2) to the desired current measuring position.
2. Plug the black test lead in COM and the red test lead in V/
Ω
/mA/°C for max. 200mA measurements (fuse
protected) or in 10A (unfused) for max. 10A measurements.
3. Put the leads in series with the load in which the current is to be measured.
4. Read the measured value from the LCD. The polarity of the red test lead will be indicated.
