Velleman DVM1307 - Manual (Page 4)

DVM1307
V. 03 – 24.02.2012 4 ©Velleman nv
4. Features
• high accuracy and rapid response
• data hold function
• manual scale selection
• max. and min. values
• low battery indication
5. Overview
Refer to the illustrations on page 2 of this manual.
1 measuring probe 6 range button
2 zero adjust 7 HOLD button
3 LCD 8 MIN/MAX button
4 ON/OFF button 9 backlight ON/OFF button
5 W/B unit select button 10 battery compartment
6. Operation
Refer to the illustrations on page 2 of this manual.
• Make sure batteries are present inside the solar power meter. Refer to §8.
• Press the power button [4] to switch the power meter on. Press again to
switch off.
• Check the measured value with the protective cap on the sensor [1]. The
display must read 00.0. If not, gently rotate the zero adjust [2] until it
does.
• Remove the protective cap from the sensor [1]. Place the sensor
horizontally to measure the solar power.
• Select the desired measuring unit (W/m² or BTU/ft²xh) with the unit
select button [5].
Note: BTU = British Thermal Unit
• When the display indicates ‘OL’, select the appropriate measuring range
with the range button [6].
• To freeze the measured value on the display, press the HOLD button [7].
The display indicates HOLD. Press again to exit hold mode.
• To show only the highest measured value, press the MIN/MAX button [8].
The display indicates MAX. To see only the lowest measured value, press
the button again. The display shows MIN. Press and hold the MIN/MAX
button [8] for about 3 seconds to return to normal mode.
• Press the backlight button [9] to switch the backlight on or off.
• After measuring, place the protective cap back on the sensor.
7. Maintenance
• Gently wipe the device regularly with a moist, lint-free cloth. Do not use
alcohol or solvents. Do not apply pressure on the display.
• Never submerge the solar power meter in any liquid.