STACK
WiFi Recording System
ST542090-002
9
Technical Specifications
Wireless Recording System
Power supply
9 to 18v DC @ 0.3A typ 1Amp max (fuse @ 5A )
Working Temp.
-20 to +70 Degrees Centigrade
Size
180mm x 160mm x 50mm (7” x 6¼ x 2”)
Weight
1.0kg
Vibration
30G, 50 to 2000 Hz, 1 Octave / min, 36 Hours
Humidity
0 to 100% condensing (Fully sealed)
Immersion
IP67
Analogue sensor inputs
Interface characteristics
Input Description
Value
Units & Notes
I/p Impedance
>1.0
M Ohms (to +6.25V)
Input voltage measurement range
0 to +5.0
Volts min/max
Input over-voltage range
-2 to +18
Volts min/max
Input resolution
10bit (~5mV) 0-1023
Pulse sensor inputs
Interface characteristics
Input Description
Value
Units & Notes
Input pull-up
18mA
to +6.25V
Input edge threshold
5.5 +/-0.5
Volts (Note: Add 390R in series for 2.25v)
Input over-voltage range
-2 to +18
Volts min/max.
Max i/p Frequency
2.5
KHz
High period pulse width
0.1
‘mS Min
Low period pulse width
0.1
‘mS Min
Sensor power output (S5V )
Interface characteristics
Output Description
Value
Units & Notes
Sensor 5v supply voltage
5.0 +/- 0.05
Volts
Sensor 5v supply current
100.0
mA max
Lap Marker input (LAP )
Interface characteristics
Description
Value
Units & Notes
I/p Impedance
5.0 +/- 0.5
k Ohms (to +5V)
Negative edge threshold
2.5 +/-0.5
Volts
Input over-voltage range
-2 to +18
Volts min/max
High period pulse width
5
mS Min
Low period pulse width
5
mS Min
Lap Marker blanking period
10
Seconds min
Battery power input B+ & B-
Interface characteristics
Input Description
Value
Units & Notes
Input voltage operating (B+ & B-)
9 to +20
Volts min/max
Input over-voltage range
-20 to +25
Volts min/max
Supply current
0.3 – 1.0
Amps typical – Max (fuse at 5A )
