EXTECH
INSTRUMENTS
6
FM100
‐
en
‐
GB_v1.7
6/16
Revert
to
Factory
Default
Settings
When
is
shown
on
the
LCD
display,
press
and
hold
the
control
button
to
reset
the
meter
to
its
default
(factory)
settings.
Escape/Return
Function
When
is
shown
on
the
LCD
display,
press
and
hold
the
control
button
for
3
seconds
to
abort
the
current
programming
step
and
return
to
the
normal
measurement
mode.
Maintenance
Low
Battery
Condition
and
Battery
Replacement
When
the
battery
icon
(
)
appears
on
the
LCD,
the
batteries
must
be
replaced.
If
the
meter
is
low
on
battery
voltage,
erratic
or
inaccurate
readings
may
result.
Never
use
the
meter
with
the
low
battery
icon
displayed.
The
battery
compartment
is
on
the
back
of
the
instrument.
Slide
the
battery
compartment
cover
off
of
the
meter
to
access
the
batteries.
Replace
the
4
AAA
batteries
observing
proper
polarity
and
replace
the
compartment
cover
before
switching
the
meter
ON.
Battery
Safety
Reminders
o
Please
dispose
of
batteries
responsibly;
observe
local,
state,
and
national
regulations.
o
Never
dispose
of
batteries
in
a
fire;
batteries
may
explode
or
leak.
o
Never
mix
battery
types;
install
new
batteries
of
the
same
type.
Never
dispose
of
used
batteries
or
rechargeable
batteries
in
household
waste.
As
consumers,
users
are
legally
required
to
take
used
batteries
to
appropriate
collection
sites,
the
retail
store
where
the
batteries
were
purchased,
or
wherever
batteries
are
sold.
Disposal:
Do
not
dispose
of
this
instrument
in
household
waste.
The
user
is
obligated
to
take
end
‐
of
‐
life
devices
to
a
designated
collection
point
for
the
disposal
of
electrical
and
electronic
equipment
.
Display
Error
Codes
The
following
errors
may
appear
on
the
display:
E
‐
1:
HCHO
readings
are
outside
of
the
specified
measurement
range
E
‐
2:
Temperature
readings
are
outside
of
the
specified
measurement
range
E
‐
3:
Relative
Humidity
(RH
%)
readings
are
outside
of
the
specified
measurement
range
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