
7
4. Specifications
Analog inputs
8 unipolar or
3 differ 2 unipolar or
combinations
Input
range
8
ranges
for
unipolar
setup
0...2,5V down to 0...20mV
8 ranges for bipolar setup
-2,5V...+2,5V down to –20mV...+20mV
AIN7 and AIN8 3 Volt
Maximum input voltage
+15V on digital inputs
+5V on analog inputs (referred to GND)
Resolution
12
bits
unipolar
(only
0...2,5V
and 0…3 V range)
24 bits differential unipolar /bipolar
Output resolution
1uV
Input offset
10uV max
Accuracy (for 24 bits resolution)
0,05%
Digital inputs
4
Logical level
3V CMOS
Max.
input
frequency
1090Hz
Power supply
4V
DC
... 20V
DC
(ZnMn, alkaline, NiCd, NiMH,
lithium, Pb, solar panel, wall adapter)
Maximum power supply voltage
+24V
Back
up
battery
CR2032
Power consumption
5mA max during measuring.
(without SD memory card, LED off)
1,7mA typical during measuring
7mA
with
RS485
option
20uA max in sleep mode (RTC
active)
Internal
memory
128kB
for
data
Memory card:
SD card
Communication
RS232
or
RS485
Communication
speed
300bps
...
115200bps,
8N1
Nr. of controlled outputs
3 opto relay, polarized
Output
levels
switched
battery,
switched
Vref
RTC
with lithium battery
RTC accuracy
50ppm
Dimensions
115mm
x
90mm
x
50mm
Temperature
range -40
...
+60
o
C
Protection
IP65
Mounting plate
For 45 mm diameter pole
Cable glands
4 x PG 7
Содержание LOGBOX SD
Страница 1: ...Instruction Manual Datalogger LOGBOX SD...
Страница 52: ...52...