MBA200
·
Operating Instructions 8011417 V 2.2
·
© MBA Instruments GmbH Germany
10
7.2
Electrical data
Mains voltage:
see nameplate
Tolerance:
see text in this manual
AC mains frequency:
50
… 60 Hz
Power consumption
– without heating:
– with heating:
3 VA
10 VA
Response time:
– quick-rotating version:
3 s
0,6 s
Bin-level Indicator MBA200
6 Fault indication
Operation principle of the fault status indication
MaihakMBA type 220 and 230 are equipped with the
»Status« switch contact for fault indication, which is driven by
relay K2. During normal operation, K2 is activated; in case of
an internal fault, K2 is deactivated. This also happens during
power supply failure. Please note: In fault condition, also
relay K1 (which drives the »Signal« contact) is deactivated,
in order to provide a fail-safe operation; however, this is only
achieved if the K1 function mode is properly selected
(
page 9, § 3.5
)
Fault indication caused by action monitoring
If action monitoring is built-in (option), the following
conditions will trigger the fault status indication:
– The shaft does not rotate, although the motor is not in the
stop position (switch S2).
Possibly defective: switch S2, motor, rotation sensor.
– The shaft is rotating, although the motor is in the stop
position (switch S2).
– Possibly defective: switch S2.
Remedy: Check if internal micro-switches are blocked.
If this does not help:
Replace the unit head.
General causes for fault indication
Without the action monitoring option, the following conditions
will trigger the fault status indication:
●
Power supply has failed.
●
An internal fuse is defective.
●
Action monitoring is activated although it is not built-in.
Remedy: Correct the setting of S1-4 (
page 9, § 3.5
).
7 Technical data
7.1
Specifications on the nameplate
●
Unit type (for example, »210«) and version code
●
Required mains power supply (for example, »230VAC 50/
60 Hz«)
●
Explosion protection class (for example, »II 1D
…«),
including the enclosure protection class (for example,
»IP 65«) and maximum surface temperatures:
– The first temperature value applies to the components
protruding into the container.
– The second temperature value applies to the unit
head.
●
Allowable ambient temperature (T
a
) and »Ex« zone (for
example, »Z20«):
»extern« = for the unit head
»medium« = for components protruding into the container
Specifications on the nameplate apply with higher priority.
Important specifications on the nameplate (example)
MBA Instruments
MBA 210YAA1N1A00300AX
II 1D Ex tD A20 IP65 T100°C/T100°C
7.3
Ambient conditions
Ambient temperature outside the container
– without heating:
–15 … +60 °C (5 … 140 °F)
– with heating:
–45 … +60 °C (–49 … +140 °F) /
PN 214000-G 123456
SN 654321 05.03
TÜV 08 ATEX 554820 X
T
a
Z20/extern:
–15°C... +60°C
–30 … +60 °C (–22 … +140 °F)
1
230VAC 50/60Hz 10VA
T
a
Z20/medium: –30°C... +80°C
QA
0044
MBA Instruments
D-25451 Quickborn
Made in Germany
Nameplate stating the Certificate of Conformity (example)
MBA Instruments
MBA 210YAA1N1A00300AX
Allowable temperature inside the container
– standard versions:
–30 … +80 °C (–22 … +176 °F)
– special versions:
see nameplate (
§ 7.1
)
Max. surface temperature
of the MBA unit:
see nameplate (
§ 7.1
)
7.4
Product materials
Product materials in contact with bulk material
Enclosure, protective tube: steel/painted steel/stainless
steel
2
, aluminium
3
Sealing:
Viton or PTFE
2
or graphite
4
PN 214000-G 123456
SN 654321 05.03
II 1D Ex tD A20 IP65 T100°C/T100°C
TÜV 08 ATEX 554820 X
T
a
Z20/extern:
–15°C... +60°C
Materials of the unit head
Enclosure body:
aluminium
230VAC 50/60Hz 10VA
T
a
Z20/medium: –30°C... +80°C
QA
Enclosure cover:
painted aluminium
0044
MBA Instruments
D-25451 Quickborn
Made in Germany
Nameplate stating the EC-type Examination Certificate (example)
MBA Instruments
MBA 210YAA1N1A00300AX
Enclosure sealing:
silicone (VMQ)
Cable glands:
PA (sealing: NBR) / option:
nickel-plated brass (sealing:
NBR/FPM, PA/PVDF)
Sealing plug:
PA
Balancing membrane:
polyester/ePTFE
(sealing: silicone)
PN 214000-G 123456
SN 654321 05.03
II 1D Ex tD A20 IP65 T100°C/T100°C
TÜV 08 ATEX 554821 X
T
a
Z20/extern:
–15°C... +60°C
230VAC 50/60Hz 10VA
T
a
Z20/medium: –30°C... +80°C
QA
0044
MBA Instruments
D-25451 Quickborn
Made in Germany
1
in explosion-hazardous locations (
page 13, § 7.6
)
2
depending on product version
3
standard unit head only
4
350 °C (660 °F) version
