DEM400
V. 01
–
07/05/2015
4
©Velleman nv
4.
Features
wind speed measurements in: m/s, ft/min, mph, km/h and knots
temperature reads out in °C and °F
backlight LCD display with function indication
max / min / data-hold function
auto power off and low-battery indication
5.
Overview
Refer to the illustrations on page 2 of this manual.
1
impeller
4
on-off button
2
MIN/MAX button
5
tripod socket
3
LCD display
6
battery compartment
Display
1
battery level
8
wind speed unit m/s
2
auto power-off
9
wind speed unit mph
3
temperature unit °C
10
wind speed unit km/h
4
MAX value
11
wind speed unit ft/min
5
MIN value
12
wind speed measurement
6
temperature unit °F
13
temperature measurement
7
wind speed unit knots
6.
Battery
1.
To replace the battery, make sure the device is switched off.
2.
Open the battery compartment at the back using an appropriate
screwdriver.
3.
Take out the old battery and replace with a new and identical 9 V
battery following the polarity markings inside the compartment.
4.
Close the battery compartment.
Warning:
Do not puncture batteries or throw them in fire as they
may explode. Do not attempt to recharge non-rechargeable
batteries (alkaline). Dispose of batteries in accordance with local
regulations. Keep batteries away from children.
7.
Operation
1.
Press the on-off button for 1 second to switch on the meter.
2.
Briefly press the on-off button to switch on the backlight.
3.
Hold the impeller into the air or gas flow to be measured. The display
shows the measured value.
4.
Hold the MIN/MAX pressed for 3 seconds to select your wind speed
unit.
