Characteristics
Original instructions
About us
Altitude Operating Conditions
The characteristics in the tables below apply to the modules BMX AMI 0810 and BMX AMI 0810H for use at altitude up to 2000 m (6560 ft). When the modules operate above 2000 m (6560 ft), apply additional derating.
For detailed information, refer to chapter Operating and Storage Conditions.
General Characteristics
The general characteristics for the BMX AMI 0810 and BMX AMI 0810H modules are as follows:
Operating temperature
BMX AMI 0810
0...60 ºC (32...140 ºF)
BMX AMI 0810H
-25...70 ºC (-13...158 ºF)
Type of inputs
High level isolated fast inputs
Nature of inputs
Voltage / Current
Number of channels
8
Acquisition cycle time:
  • Fast (periodic acquisition for the declared channels used)
1 ms + 1 ms x number of channels used
  • Default (periodic acquisition for all channels)
9 ms
Display resolution
16-bit
Digital filtering
First order
Isolation:
  • Between channels
+/-300 VDC
  • Between channels and bus
1400 VDC
  • Between channels and ground
1400 VDC
Maximum overload authorized for inputs:
Voltage inputs: +/- 30 VDC
Current inputs: +/- 30 mA
Protected against accidental wiring: -19.2 to 30VDC
NOTE: The Protected for accidental wiring function is not supported when the module works with any Telefast interface.
Power consumption (3.3 V)
Typical
0.32 W
Maximum
0.48 W
Power consumption (24 V)
Typical
1.06 W
Maximum
1.50 W
Measurement Range
The BMX AMI 0810 and BMX AMI 0810H analog inputs have the following measurement range characteristics:
Measurement range
+/- 10 V; +/- 5 V
0...10 V; 0...5 V; 1...5 V
+/- 20 mA;
0...20 mA; 4...20 mA
Maximum conversion value
+/-11.4 V
+/-30 mA
Conversion resolution
0.36 mV
1.4 μA
Input impedance
10 ΜΩ
Internal conversion resistor (250 Ω) + Internal protection resistor (see note)
Precision of the internal conversion resistor
-
0.1% - 15 ppm/°C
Measurement errors for standard module :
  • At 25°C
  • Maximum in the temperature range 0...60°C (32...140°F)
0.075% of FS(1)
0.1% of FS(1)
Typical 0.15% of FS(1)(2)
0.3% of FS(1)(2)
Measurement errors for Hardened module:
  • At 25°C
  • Maximum in the temperature range -25...70°C (-13...158°F)
0.075% of FS(1)
0.2% of FS(1)
Typical 0.15% of FS(1)(2)
0.55% of FS(1)(2)
Temperature drift
30 ppm/°C
50 ppm/°C
Monotonicity
Yes
Yes
Common mode rejection (50/60 Hz)
80 dB
80 dB
Crosstalk between channels DC and AC 50/60Hz
> 80 dB
> 80 dB
Non-linearity
0.001%
0.001%
Repeatability @25°C of 10 min. stabilization time
0.005% of FS(1)
0.007% of FS(1)
Long term stability after 1000 hours
< 0.004% of FS(1)
< 0.004% of FS(1) 
(1)
FS: Full Scale 
(2)
With conversion resistor error
NOTE: The internal protection resistor has a typical impedance of 25 Ω (min 3.6 Ω and max 50 Ω). The precision of the protection resistor does not impact the measured value.
NOTE: If nothing is connected on a BMX AMI 0810 and BMX AMI 0810H analog module and if channels are configured (range 4...20 mA or 1...5 V), there is a detected I/O error as if a wire is broken.