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FUNCTIONAL DESCRIPTION
The measurement transducer MAXIMAT SHR CS / C19 serves in connection with the overflow and leakage sensors of or lines
MAXIMAT VK ..., MAXIMAT SU ..., MAXIMAT LW ..., MAXIMAT C..., as a standard stop switch for overflow and leakage alarm devi-
ces for permanently attached tanks for storage of liquids hazardous to water.
With the relay contacts installed, the alarm control and adjustment device can be operated.
ELECTRIC CONNECTION
Mains (+V DC)
Mains (-V DC)
Alarm contact (Common)
Alarm contact (NC)
Alarm contact (NO)
Alarm contact (Common)
Alarm contact (NC)
Alarm contact (NO)
Sensor connection:
Please refer the manual of
the connected MAXIMAT overfill or leakage sensor.
Sensor (shielding)
Sensor +
Sensor -
** not used for several sensors
AUTO-MONITORING
The device works on the closed-circuit principle. With defects on the sensor, in the wiring and on the transducer the output relays
drop out and thereby trigger an alarm signal.
CONTACT POSITION OF RELAY OUTPUTS
Operating state
No alarm
Alarm, fault, power outage
SHUNT CIRCUIT
Operating state
I
(no alarm)
Alarm
I
Wiring break
I
Short circuit
I
SERVICING
When used properly, the device needs no servicing.
TROUBLE SHOOTING
Green LED "Betrieb" does not light up
Red LED "Messkreis Bruch" lights up
Red LED "Messkreis Schluss" lights up
Device reacts tardily
555 M1 06 B
Terminal number
(for top hat rail)
L(+)
N(-)
21
22
24
31
32
34
(8)**
10
12
Relay
Switcher contact
Engaged
SHR CS: 21-24 and 31-34 closed
dropped out
SHR CS: 21-22 and 31-32 closed
=18...40 mA
M
= 10...18 mA
M
= < 7 mA
M
= > 40 mA
M
Power supply voltage out
Device defective
Shunt circuit wiring break
sensor defective
Short circuit in the shunt circuit
sensor defective
Time delay adjusted too slow
15-09-2008
LED
short-circuit
LED
wiring break
LED
operating
state
LED
overfill/leakage
alarm
7 10 18
40
110
Measuring current mA
Page 3
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