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171
Specifications
I input
4 ... 20 mA / 50 Ω
(SW-A005)
Function
Input of pressure or temperature values from external
sensors
Resolution
Approx. 0.05 mA
Characteristic
Linear, bilinear, logarithmic
Measurement error
1)
< 1% current value + 0.1 mA
Door contact
outputs a signal when the door is open
Entry to extended logbook (FDA)
HOLD input
Galvanically separated (optocoupler)
(SW-A005)
Function
Switches device to HOLD mode
Switching voltage
0 ... 2 V AC/DC
HOLD inactive
10 ... 30 V AC/DC
HOLD active
CONTROL input*
(SW-A005)
Galvanically separated (optocoupler)
Function
Selecting parameter set A/B or flow measurement
(FLOW)
Switching voltage
0 ... 2 V AC/DC
Parameter set A
10 ... 30 V AC/DC
Parameter set B
FLOW
Pulse input for flow measurement
0 ... 100 pulses/sec
Display
00.0 … 99.9 l/h
Output 1
0/4 ... 20 mA, max. 10 V,
floating (galvanically connected to output 2), HART communication
Overrange*
22 mA in the case of error messages
Characteristic
Linear, bilinear, logarithmic
Output filter*
PT
1
filter, time constant 0 ... 120 s
Measurement error
1)
< 0.25% current value + 0.025 mA
Start/end of scale*
Configurable within the measuring range of the selected
process variable
Output 2
0/4 ... 20 mA, max. 10 V,
floating (galvanically connected to output 1)
Overrange*
22 mA in the case of error messages
Characteristic
Linear, bilinear, logarithmic
Output filter*
PT
1
filter, time constant 0 ... 120 s
Measurement error
1)
< 0.25% current value + 0.025 mA
Start/end of scale*
Configurable within the measuring range of the selected
process variable
Содержание Stratos Evo A402
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