Iso-Tech IDM 97 - Page 8

8
(2) Technical specification
2.1 General specification
These meters have been produced to compl
y
with cate
g
or
y
II requirements under IEC publication 1010-1 "Safet
y
requirements for electrical equipment for measurin
g
, monitorin
g
and laborator
y
use". This standard of safet
y
can
onl
y
be
g
uaranteed if the maximum and minimum fi
g
ures specified in section 2.2 are observed.
Display :
3200 count LCD displa
y
with a 65-se
g
ment analo
g
bar
g
raph displa
y
.
Polarity indication :
Automatic, positive if nothin
g
indicated, ne
g
ative indicated
Range overrun :
"OL" or "-OL"
Low battery voltage indication :

shown if the volta
g
e from the batteries drops below the operatin
g
volta
g
e
required.
Display update rate :
Two per second for di
g
ital displa
y
, 12 per second for bar
g
raph displa
y
.
Automatic power off :
After approx. ten minutes