Dungs MPA 5111, Руководство пользователя

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56 … 68
Printed in German
y • Edition 02.14 • Nr
. 254 722
13 Flame detector
The following flame detectors are
approved by DUNGS and can be
recommended for use in connection
with the MPA51xx:
Manufacturer Designation Type Output signal Reaction
time
Certificate Continuous
operation
- Ionisation
electrode
Ionisation Ionisation < 1 s Yes
BST solutions
DUNGS
KLC 1000
FLW 20
UV tube Ionisation (1 s + 0.5 s) =
< 1.5 s
Yes No
BST solutions
DUNGS
KLC 2000
FLW 10
Flicker de-
tector with
frequency
analysis
Ionisation (1 s + 0.5 s) =
< 1.5 s
Yes No
DUNGS has the following require-
ments to flame detectors used with
the MPA51xx:
1. Approval and certification by the
respective bodies (DVGW, DIN
Certco,...) must be ideally pro-
vided.
An independent prove about the
compliance with the respective
demands of the DIN EN298 is
required.
2. The ionisation behaviour of a
flame must be simulated (rectifier
effect)
3. The following values are active on
the ionisation input and output
230 VAC +10 % -15 %
The internal resistance of the
MPA is approx 1 MΩ. For safety
reasons, the flame sensor must
work properly also with an internal
resistance of 360 kΩ.
4. Under these conditions, the simu-
lation circuit in the flame detector
must reach at least a direct cur-
rent 3 µA.
If an alternating current with a DC
component is simulated, the DC
component should reach at least
25%.
The current can be derived to N,
PE or returned to N on the MPA.
5. The supply voltage for the flame
detector must be tapped off at the
output ION_PWR of the MPA51xx
(230 VAC, max. 1 A).
6. The reaction times must be ob-
served!
Total reaction time = reaction time
MPA + reaction time flame detec-
tor
The reaction time of the MPA is < 1 s
7. The EMC regulations must be
observed (EN 298). The entire
system must not represent inad-
missible emissions.
8. The MPA51xx is not decoupled.
The polarity of the MPA and the
flame detector must be strictly
observed.
9. Prior to use a flame sensor which
is not included in the list, please
contact DUNGS. DUNGS cannot
be held liable if the flame detector
and the automatic burner control
do not work orderly together.
Especially if the electromagnetic
behaviour is not according to the
regulations or if the time depend-
ent behaviour is not correct.
For a good flame detection the flame
signal has to be considered during
configuration of the burner.
The LED of the flame on the display
must not be flashing and the dis-
played signal in the VisionBox appli-
cation must have more than 40 digits.