• The unauthorized convers on and/or modification of
the product is not allowed for approval reasons.
• Please make sure that you operate the device properly.
Please follow these operating instructions.
• The housing may not be disassembled, except for
opening the battery compartment cover.
• The meter and accessories are not toys and must be
kept out of the hands of children!
• In commercial and industrial facilities the regulations
for the prevention of accidents as laid down by the
professional trade association for electrical equipment
and devices must be observed.
• In schools, training centres, computer and self-help
workshops, use of the meter must be supervised by
trained personnel in a responsible manner.
• Do not switch the meter on immediately after it has
been taken from a cold in to a warm environment.
Condensation that forms might destroy your device.
Allow the device to reach room temperature before
switching it on.
• Do not carelessly leave the packaging material lying around
since this may become a dangerous toy for children.
G
Intended use
The BC 20 is a digital measuring instrument for the mea-
surement of humidity and of air, wet bulb and dew point
temperature in the units % R.H. (percent relative humiti-
ty) and °C/°F (degrees Celsius / degrees Fahrenheit).
The values detected and the current units/functions are
displayed digitally on a large LCD (Liquid Crystal Display).
The minimum and maximum value can be automatically
saved and the current display contents can be kept with
the Hold function.
The BC 20 has optional display lighting.
A 9-V block battery (type 1604A) is required for operation.
Measurements must not be carried out under unfavou-
rable ambient conditions. Unfavourable ambient condi-
tions include the following: Dust and inflammable gases,
vapours or solvents, storms or stormy conditions such
as strong electrostatic fields, etc.
Use other than that described above will lead to dama-
ging the product.
No part of the product may be modified or altered!
The safety instructions should be observed without fail!
Operating manual – humidity & temperature meter Bc20
B - 2