Appendix d: vim input specifications, Analogue inputs, Motec appendices 65 – MoTeC ACL VIM User Manual
Page 69: Vim analogue input specifications, Vim analogue input specifications continued
MoTeC
Appendices
65
Appendix D: VIM Input Specifications
Analogue Inputs
VIM Analogue Input Specifications
Input
Type
Qty Update
Rate
(Hz) ++
Analogue
Filter
(Hz) *
Digital
Filter
Bits Effective
Input
Resistance
(ohms)
AV F
6
5000
4400
8xAvg **
12
66k
AV H
8
500
330
6.4kHz #
15
150k (Gain=1)
4.7k (Gain=64)
AV S
2
2000
720
6.4kHz #
15
150k (Gain=1)
4.7k (Gain=64)
AV D
8
1000
360
6.4kHz #
15
+Sign
150k (Gain=1)
>1M (Gain>1)
AV SPD
##
2 100 7000
None 12 90k
@
VIM Analogue Input Specifications Continued
Input
Type
Gain
Range
Range & Resolution
at Gain = 1
Range & Resolution
at Gain = 64
AV F
1
0 to 5V, 1.22 mV steps
N/A
AV H
1-64
0 to 5V, 153 uV steps
0 to 78 mV, 2.38 uV steps
AV S
1-64
0 to 5V, 153 uV steps
0 to 78 mV, 2.38 uV steps
AV D
1-64
-5 to +5 V differential,
0 to 5 V absolute,
153 uV steps
***
-78 to +78 mV differential,
0 to 3 V absolute,
2.38 uV steps
AV SPD
##
1
0 to 10.3 V, 2.5 mV steps
N/A
++ If the channel is logged at a lower rate than the update rate an optional
anti-alias filter can be applied which averages the values between each log
event. In this case the effective update rate is equal to the logging rate. The
anti-alias filter causes a phase shift equal to half the logging rate. The anti-
alias filter also affects the real time value of the channel which is filtered and
updated at the logging rate or at 50 Hz whichever is greater. If the channel is
not logged then the real time value is updated at 50 Hz.
* First order RC type. The frequency is the 3 dB point.