Siemens FS720 - Page 64

Calibrating an FDnet/C
-
NET detector line
Calibration repo
rt
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Building Technologies
A6V10210416_j_en_
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Fire Safety
2018
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08
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29
Entry in the calibration
report
Possible content* Description
4. Power consumption of
the line (nominal)
Loop 1_1/1_2
Line 1/2/1 PASS Inom = 500 mA
The entry indicates the calculated value
for the nominal power consumption of
the line. This is made up of the
measured power consumption of all
'Voice alarm sounder beacon/Voice al.
sound. beacon base' devices on the line
and the calculated compensation value
for all non-'Voice alarm sounder
beacon/Voice al. sound. beacon base'
devices on the line.
The following results are possible:
● Pass: The calculated nominal power
consumption is below 0.5 A.
Loop 1_1/1_2
Line 1/2/1 FAIL Inom = 600 mA
● Fail: The calculated nominal power
consumption is above 0.5 A.
5. Power consumption of
the line (maximum)
Loop 1_1/1_2
Line 1/2/1 PASS Imax = 499 mA
The entry indicates the calculated
maximum power consumption of the
line. This is made up of the maximum
power consumption of all 'Voice alarm
sounder beacon/Voice al. sound.
beacon base' devices in the event of an
open line directly at the connection
terminal and the calculated
compensation value for all non-'Voice
alarm sounder beacon/Voice al. sound.
beacon base' devices on the line.
The following results are possible:
● Pass: The calculated maximum
power consumption is below 0.5 A.
Loop 1_1/1_2
Line 1/2/1 FAIL Imax = 649 mA
● Fail: The calculated maximum
power consumption is above 0.5 A.
6. Power consumption of
the line while idling
Loop 1_1/1_2
Line 1/2/1 PASS Iquiet = 12 mA
The entry shows the measured power
consumption of the line in an unloaded
state.
7. Line resistance - Plus Loop 1_1/1_2
Line 1/2/1 PASS ..... R+ = 12.3
The entry shows the measured line
resistance on the line's plus cable in
ohm [Ω].
8. Line resistance - Minus Loop 1_1/1_2
Line 1/2/1 PASS ..... R- = 12.5
The entry shows the measured line
resistance on the line's minus cable in
ohm [Ω].
9. Tolerance of the line
resistance
Loop 1_1/1_2
Line 1/2/1 PASS ..... dRmax = 20.0
The entry shows the calculated value
for the maximum tolerance of the line
when faced with a gradual line break
and thermal drift.
The following results are possible:
● Pass: The calculated difference to
the current line resistance is >0 Ω.
Loop 1_1/1_2
Line 1/2/1 FAIL ..... dRmax = - 2.1
● Fail: The calculated difference to the
current line resistance is ≤0 Ω.