EXTECH
INSTRUMENTS
10
SDL900
‐
en
‐
GB_V1.4
5/15
Specifications
Circuit
Custom
one
‐
chip
of
microprocessor
LSI
circuit
Display
(LCD)
Size
52
x
30mm
(2.04
x
1.18
in.)
Measurement
Unit
mT
Milli
Tesla
G
Gauss
Measurement
Range,
DC
mT
Range
1
300.00
mT
x
0.01
mT
Range
2
3,000.0
mT
x
0.1
mT
G
Range
1
3,000.0
G
x
0.1
G
Range
2
30,000
G
x
1
G
Measurement
Range,
AC
mT
Range
1
150.00
mT
x
0.01
mT
Range
2
1,500.0
mT
x
0.1
mT
G
Range
1
1,500.0
G
x
0.1
G
Range
2
15,000
G
x
1
G
Accuracy
(at
23
±5°C)
DC
±
(5%
rdg.
+
10
dgt.)
AC
±
(5%
rdg.
+
20
dgt.)
Frequency
Response
AC
Measurement:
50
Hz
/
60
Hz
Sensor
Hall
Sensor
Datalogger
Sampling
Time
and
Setting
Range
Auto
1
second
to
3600
seconds
(with
the
sampling
rate
set
to
‘1’
second
some
data
points
could
be
lost)
Manual
Push
data
logger
button
to
save
data
(set
to
‘0’
seconds)
Data
error
number
≤
0.1
%
no.
of
total
saved
data
typically
Field
Direction
Uniaxial
Display
Sampling
Time
Approx.
1
second
Operating
Temperature
0
to
50°C
(32
to
122
°F)
Operating
Humidity
Less
than
85%
R.H.
Data
Output
RS
232/USB
PC
serial
interface
Power
Supply
6
x
Alkaline
or
Heavy
duty
1.5
V
AA
batteries
