:
SU0213.DOC 06/03
© IER Eberhard Henkel GmbH
Sheet 1
Operating Instructions
Compact Overfill Sensor, Float Type
MAXIMAT VK C...
with integrated mesuring Transducer, DIBT Approval Z-65.11-355
Safety Precautions
•
Installation, initial start-up and maintenance may only be
performed by trained personnel! All applicable European and
national regulations regarding installation of electrical
equipment must be adhered to.
•
The device may only be connected to supply power which
complies with the specifications included in the technical data
and on the serial plate!
•
The device must be disconnected from all sources of power
during installation and maintenance work!
•
The device may only be operated under the conditions
specified in the operating instructions!
Functions Description
The MAXIMAT VK C... compact overfill sensor is used as a fill-
level limit switch for permanently installed containers used for the
storage of non-flammable, water endangering liquids.
It is equipped with three different output circuits:
•
A binary output for controlling a coupling relay, or the digital
input of a PLC
•
A 0 to 20 mA current output for controlling an analogue input
channel, e.g. a programmed logic controller (PLC)
•
Self-monitoring measuring circuit in combination with the
MAXIMAT SHR C... measuring transducer with 2-wire
connection
Note:
Only for liquids with density greater than
0.7g/cm³
The MAXIMAT VK C... compact overfill sensor is used also for oil,
emulsion and other non-conductive liquids.
Technical Data
Supply power
24 V DC ± 10%
With current limiting or 250 mA fuse recommended
Connected load
Approx. 3 W
Ambient temperature
-20 to +60
°
C
Container pressure
Atmospheric (0.8 to 1.1 bar)
Terminal housing
IP 65
Terminals
Screw terminals: IP 20
Max. wire cross-section: 2.5 mm²
Outputs
Binary output: +DO/-DO max. 20 mA / 24 V +AO / -AO
0 to 20 mA
Output for MAXIMAT SHR C... measuring transducer
DIP Switch
Operating Mode
DIP1
DIP2
DIP3
DIP4
Binary output
ON
ON
ON
OFF
Current output/PLC OFF
OFF
OFF
OFF
MAXIMAT SHR C
OFF * OFF * OFF * OFF *
* Default setting
Note:
Be sure to examine the DIP switch settings before
switching supply power on!
Indicators
Green LED on the connector PCB:
•
Run = LED illuminated
•
Alarm / error = LED off
Measuring circuit for use with SHR C... transducer
Max. cable inductance:
approx. 5 mH
Max. cable capacitance:
approx. 0.5
µ
F
Measuring circuit cable length
Max. 300 m
Min. wire cross-section: 0.5 mm²
CE mark
In accordance with low-voltage directive (73/23/EWG),
EMC directive (89/336/EWG) and
•
EN 50 082-2:1995
•
EN 55 011 (class A):1998
DIBT Approval
Approval no.
Z-65.11-355
for overfill sensors and leakage
sensors in accordance with WHG §19
Note:
The accompanying “General Building Supervisory Approval
no. Z-65.11-355” is an integral part of the operating
instructions and all stipulations contained therein must be
adhered to!
