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User Guide User Guide
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Fibroptic Thermometer
Fibroptic Thermometer
Fig. 17 UNO to DPU interconnection schedule UN970322
1
2
3
4
5
6
7
8
Yellow
Blue
White
Screen
Red
Black
Green
N/C
FunctionCable Colour
4 to 20mA linear temperature signal drive
4 to 20mA linear temperature signal return
CMD (Command) input
Screen
23 to 48V,
<200mA, dc power (positive)
23 to 48V, <200mA, dc power (negative)
CMD (Command) input
No connection
DPU Pin Nº
UNO to DPU
connections
9
10
11
12
13
14
15
16
Brown/Red
Black/Blue
White
Green
Screen
Yellow
Blue
N/C
AC Mains Live
AC Mains Neutral
CMD (Command) input*
CMD (Command) input*
Screen
4 to 20mA linear temperature signal drive
4 to 20mA linear temperature signal return
No connection
External connections
to DPU
Recommended output load resistance:
Maximum output load resistance:
CMD (Comm and) input:
100
Ω
400
Ω
Voltage-free switch closure
Switch open = PEAK PICK
Switch closed = TRACK ( or RESET)
Notes
NOTES ON DPU INTERCONNECTIONS (Fig. 16)
'To indicator' The indicator must have a 'floating' input i.e.
a differential or isolated input.
'Reset control' The reset control must be electrically
isolated from the indicator.
When used with an UNO, only the connections shown in Fig.
16 must be made to the DPU. Do not make any other
connections to the DPU.
Fig. 17 UNO to DPU interconnection schedule UN970322
1
2
3
4
5
6
7
8
Yellow
Blue
White
Screen
Red
Black
Green
N/C
FunctionCable Colour
4 to 20mA linear temperature signal drive
4 to 20mA linear temperature signal return
CMD (Command) input
Screen
23 to 48V,
<200mA, dc power (positive)
23 to 48V, <200mA, dc power (negative)
CMD (Command) input
No connection
DPU Pin Nº
UNO to DPU
connections
9
10
11
12
13
14
15
16
Brown/Red
Black/Blue
White
Green
Screen
Yellow
Blue
N/C
AC Mains Live
AC Mains Neutral
CMD (Command) input*
CMD (Command) input*
Screen
4 to 20mA linear temperature signal drive
4 to 20mA linear temperature signal return
No connection
External connections
to DPU
Recommended output load resistance:
Maximum output load resistance:
CMD (Comm and) input:
100
Ω
400
Ω
Voltage-free switch closure
Switch open = PEAK PICK
Switch closed = TRACK ( or RESET)
Notes
NOTES ON DPU INTERCONNECTIONS (Fig. 16)
'To indicator' The indicator must have a 'floating' input i.e.
a differential or isolated input.
'Reset control' The reset control must be electrically
isolated from the indicator.
When used with an UNO, only the connections shown in Fig.
16 must be made to the DPU. Do not make any other
connections to the DPU.
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