Liquid level monitors & controls
CM-E Range
Liquid level monitors &
mo Mea
controls nitor surin
CM in g
Ra g re &
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Liquid level monitors and controls
Benefits and advantages
CM-ENE MIN/MAX
• Monitoring of pump systems for dry running (ENE MIN) and overflow (ENE MAX)
• Connection of 2 electrodes possible at C and MIN/MAX
• 3 supply voltage versions
• Optimal price/performance ratio
• 1 n/o contact: Open-circuit principle for CM-ENE MIN, Closed-circuit principle for CM-ENE MAX
• LED for status indication
CM-ENS
6 • Monitoring and control of liquid levels (when draining or filling liquids in tanks)
• Monitoring and control of mixture ratios (conductivity of liquids)
• Adjustable response sensitivity 5-100 kq
• 4 supply voltage versions 24 - 415 V AC
• Version with protective separation acc. to VDE 0160 J
• Cascadable
• 1 c/o contact or 1 n/o and 1 n/c contact
• 2 LEDs for status indication
CM-ENS UP/DOWN
• Monitoring and control of liquid levels
• Selectable function "fill" or "drain"
• Adjustable response sensitivity 5-100 kq
• Cascadable
• 1 c/o contact
• 2 LEDs for status indication
CM-ENN
• Monitoring and control of liquid levels (when emptying or filling liquids in tanks)
• Monitoring and control of mixture ratios (conductivity of liquids)
• 3 response sensitivities from 250 q - 500 kq in one unit
• 5 supply voltage versions 24 V AC/DC - 415 V AC
• Selectable ON- or OFF-delay 0.1-10 s
• 2 c/o contacts
• 2 LEDs for status indication
CM-ENN UP/DOWN
• Liquid level relay with 5 electrode inputs
• Level control with integrated overflow and dry-running protection
• Adjustable response sensitivity 5-100 k
• Cascadable
• 1 c/o contact and 2 n/c contacts as alarm outputs
• 4 LEDs for status indication
Response sensitivity
250 q - 5 kq
2.5-50 kq
25-500 kq
Max. electrode current
8 mA
2 mA
0.5 mA
Max. cable capacity
Max. cable length
200 nF
20 nF
4 nF
1000 m
100 m
20 m
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Liquid level monitors and controls
Ordering details
Description
ABB‘s liquid level monitoring relays for regulation and control of liquid levels and ratios of mixtures of conductive fluids.
The assortment includes single function and multifunction monitoring relays which can be
used for over flow and dry-running protection, for filling and draining applications, for max and
min alarm or any combination of such functions. Furthermore, a wide range of accessories is
available.
6
Ordering details
Rated control
supply voltage
CM-ENE MIN
Reference
code
24 V AC
110-130 V AC
1SVR550855R9500
CM-ENE MIN
1SVR550851R9500
0.15 (0.33)
24 V AC
1SVR550855R9400
0.15 (0.33)
CM-ENE MAX
1SVR550850R9400 0.15 (0.33)
220-240 V AC
1SVR550851R9400
0.15 (0.33)
24 V AC
1SVR430851R9100
0.15 (0.33)
110-130 V AC
1SVR430851R0100
0.15 (0.33)
220-240 V AC
1SVR430851R1100
0.15 (0.33)
380-415 V AC
1SVR430851R2100
0.15 (0.33)
220-240 V AC 1)
1SVR430851R1300
0.15 (0.33)
24 V AC
1SVR430851R9200
0.15 (0.33)
1SVR430851R0200
0.15 (0.33)
1SVR430851R1200
0.15 (0.33)
110-130 V AC
CM-ENS
CM-ENS
UP/DOWN
220-240 V AC
CM-ENE MAX
24-240 V AC/DC
1SVR450055R0000 0.30 (0.66)
24 V AC
1SVR450059R0000 0.30 (0.66)
110-130 V AC
CM-ENN
1SVR450050R0000 0.30 (0.66)
220-240 V AC
1SVR450051R0000
380-415 V AC
1SVR450052R0000 0.30 (0.66)
24 V AC
110-130 V AC
220-240 V AC
CM-ENN
UP/DOWN
380-415 V AC
1)
0.15 (0.33)
1SVR450050R0100
0.15 (0.33)
1SVR450051R0100
0.15 (0.33)
1SVR450052R0100
0.15 (0.33)
Liquid level monitors are
acids, bases
liquid fertilizers
milk, beer, coffee
non-concentrated alcohol
Not suitable for
chemically pure water
fuel
oils
explosive areas (liquid gas)
0.30 (0.66)
1SVR450059R0100
Version with protective separation acc. to VDE 0160, 1 n/o, 1 n/c
Suitable for
spring water
drinking water
sea water
sewage
0.15 (0.33)
1SVR550850R9500 0.15 (0.33)
220-240 V AC
110-130 V AC
CM-ENS
Catalog
number
Weight
(1 pce)
kg (lb)
ethylene glycol
concentrated alcohol
paraffin
lacquers
CM-ENN
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Liquid level monitors and controls
Ordering details
Accessories
Compact support CM-KH-3 for 3 bar electrodes
Compact support CM-KH-3
M4 thread
M16
screwed cable gland
spanner size 36
sealing ring
counter nut CM-GM-1
1" thread
1" counter nut CM-GM-1
(Reference code: 1SVR 450 056 R8000)
(optional)
screw-in bar
electrodes with
M4 thread
(available as an
option, see below)
distance plate CM-AH-3
(Reference code: 1SVR 4 450 056 R7000)
(optional)
distance plate CM-AH-3
electrodes
Counter nut CM-GM-1
Distance plate CM-AH-3
Technical data compact support
Type of mounting:
Mounting position:
Enclosure material:
Sealing:
Temperature range:
Pressure:
G 1" thread
any
PPH
NBR 70
90 °C max.
10 bar max. (60 °C)
Reference
code
Description
Catalog
number
Compact support for 3 bar electrodes
CM-KH-3
1SVR450056R6000
Distance plate for 3 bar electrodes
CM-AH-3
1SVR450056R7000
Counter nut for 1“ thread
CM-GM-1
1SVR450056R8000
Pkg
qty
Weight (1 pce)
kg (lb)
0.06 (0.132)
1
0.06 (0.132)
0.06 (0.132)
Suspension electrode CM-HE
➛
Screw-in bar electrodes for compact support CM-KH-3
Thread M4
L
6
• Ideally suited for use with liquid level relays
CM-ENS and CM-ENN
• Wire connection by screw terminals
• Pull relief by M16 screwed cable glands
• Temperature range up to 90 °C
• Food safe material (PPH)
• Screw-in electrodes (M4 thread)
• Distance plate (CM-AH-3) and locking nut (CM-GM-1) optionally available as an accessory
Dimensions in mm
Material: stainless steel 304,
high-grade steel 14301
➛
Steel electrode
(X14CrMoS17) with sleeve
(Lupulen 6011 L)
suitable up to 60°C max.
During project engineering the compatibility of the electrode material with the medium to be supervised is to be examined!
Length
Reference
code
Catalog
number
300 mm
CM-SE-300
1SVR450056R0000
600 mm
CM-SE-600
1SVR450056R0100
1000 mm
CM-SE-1000
1SVR450056R0200
CM-HE
1SVR402902R0000
CM-HE
Pkg
qty
Weight (1 pce)
kg (lb)
0.08 (0.176)
1
0.08 (0.176)
0.08 (0.176)
0.08 (0.176)
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Liquid level monitors and controls
Function diagrams
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Function diagram CM-ENS
Max.
Min.
C
A1-A2
11-14
11-12
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The CM-ENS monitors levels of conductive liquids and is used for example for liquid level control in pump systems. It can be used for filling or draining
tanks for example. It is also suitable for monitoring the conductivity of liquids. The measuring principle is based on the resistance change sensed by single-pole electrodes. After the supply voltage is applied to the terminals A1 and A2, the output relay is de-energized. The probes must be connected to
C, MAX, MIN. The output relay energizes if the liquid exceeds the maximum level (C and MAX wet) and de-energizes if the liquid level is below the minimum level (MAX and MIN dry). Based on the measuring circuit there will be a response delay of approx. 250 ms at maximum sensitivity. Different levels in
one tank can be controlled by up to 5 CM-ENS without interfering with each other.
Function diagram CM-ENN UP/DOWN
AL2
MAX
MIN
AL1
C
A1-A2
21-22
31-32
"DOWN"
"UP"
11-14
11-12
11-14
11-12
If a metal tank is used, the ground reference electrode C is not required. In this case the cable can be connected directly to the metal surface of the tank.
The CM-ENN UP/DOWN monitors levels of conductive liquids and media and is used e.g. for liquid level control in pump systems. The measuring principle is based on the resistance change sensed by single-pole electrodes. The function of the output relay 11-12/14 can be selected by a selector switch
on the front of the unit to fill "UP" or drain "DOWN". If the "UP" function is selected, the output relay is energized until the MAX electrode becomes wet.
Then it is de-energized and not re-energized until the MIN electrode becomes dry.If the "DOWN" function is selected, the output relay is energized as
soon as the MAX electrode becomes wet. It remains energized until the liquid level has dropped below the MIN electrode. The electrode inputs AL1 and
AL2 energize/de-energize the corresponding output relays RAL1 (21-22) and RAL2 (31-32). AL1 opens if contact RAL1 (21-22) is wet. AL2 closes if contact RAL2 (31-32) is wet. This way, two additional alarm outputs for exceeding or dropping below the normal level can be implemented in addition to the
filling levels MAX and MIN.
Function diagram CM-ENS UP/DOWN
Max.
Min.
C
A1-A2
"DOWN"
11-14
11-12
"UP"
11-14
11-12
The CM-ENS UP/DOWN monitors levels of conductive liquids and other media, and is used e.g. for liquid level control in pump systems.
The measuring principle is based on the resistance change sensed by single-pole electrodes. The output relay functions fill (UP) or drain (DOWN) can be
selected on a front-face selector switch. If the "UP" function is selected, the output relay is energized until the MAX electrode becomes wet. Then it is
de-energized and not re-energized until the MIN electrode becomes dry. If the "DOWN" function is selected, the output relay is energized as soon as the
MAX electrode becomes wet. It remains energized until the liquid level has dropped below the MIN electrode. The electrodes can be connected to more
than one CM-ENS unit without interference.
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Liquid level monitors and controls
Function diagrams
Function diagrams CM-ENN
Circuit with 2 electrodes
MAX
MIN
C
A1-A2
6
15/18
15/16
or
Circuit with 3 electrodes
The CM-ENN monitors levels of conductive liquids and is used for example for liquid level monitoring in pump control systems, for dry-running
protection of submersible pumps or overflow monitoring of tanks. It is also
suitable for conductivity monitoring of liquids. The measuring principle is
based on the resistance change sensed by single-pole electrodes (wet or
dry).
Instead of electrodes, other sensors or transducers can also be used if
their output quantities are different resistance values. The measuring, output and supply circuits are electrically isolated for potential separation and
to prevent electrical interference.
Due to the integrated ON- or OFF-delay, it is possible to set up timedependent liquid controls using only two electrodes (C, MAX). Different
liquid levels in one tank can be controlled by up to 5 CM-ENN (AC version)
without mutual interference.
MAX
MIN
C
A1-A2
15/18
15/16
or
tA = ON-delay, tR = OFF-delay
Function diagram CM-ENE MIN
MIN
C
A1-A2
13-14
The liquid level relays CM-ENE MIN and CM-ENE MAX are used to monitor levels of conductive liquids, for example in pump control systems for
dry-running or overflow monitoring.
The measuring principle is based on the occurring resistance change
when moisting single-pole electrodes. The single-pole electrodes (see also
section Accessories) are connected to the terminals C and MIN or MAX.
If the supply voltage is applied to A1-A2 and the electrodes are wet, the
output relay of the CM-ENE MIN is energized and the output relay of the
CM-ENE MAX is de-energized.
The output relay of the CM-ENE MIN de-energizes if the electrodes are
no longer wet. The output relay of the CM-ENE MAX energizes if the electrodes are no longer wet.
Function diagram CM-ENE MAX
MIN
C
A1-A2
13-14
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Liquid level monitors and controls
Connection diagrams
Connection diagram CM-ENE MAX
Connection diagram CM-ENE MIN
A1-A2
C
MIN
13-14
A1-A2
Rated control
supply voltage
Ground reference
electrode
Minimum level
Output contact open-circuit principle
C
MAX
13-14
Rated control
supply voltage
Ground reference
electrode
Max. level
Output contact closed-circuit principle
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Connection diagram CM-ENS
Connection diagram CM-ENN
A1-A2
Rated control
supply voltage
C
Ground reference electrode
MAX
Maximum level
Minimum level
MIN
11(15)-12(16)/14(18)
Output contacts open-circuit principle
Connection diagram CM-ENS UP/DOWN
A1
C
11
MAX
C MAX MIN
MIN
11
A1
A2 12 14
14
12
A2
A1 - A2 Rated control
supply voltage
Ground reference electrode
C
MAX
Maximum level
MIN
Minimum level
11-12/14Output contacts open-circuit or closed-circuit
principle selectable
A1-A2
Rated control
supply voltage
C
Ground reference
electrode
MIN
Min. level electrode
MAX
Max. level electrode
15-16/18Output contacts 25-26/28open-circuit principle
Connection diagram CM-ENN UP/DOWN
A1-A2
Rated control
supply voltage
Ground reference electrode
C
MIN
Minimum level electrode
MAX
Maximum level electrode
AL1
Alarm electrode 1
AL2
Alarm electrode 2
11-12/14Output contacts 21-22 open-circuit or closed-circuit
31-32 principle selectable
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Liquid level monitors and controls
Application examples
Application examples CM-ENE MIN/MAX
CM-ENE MIN
CM-ENE MAX
CM-ENE MIN und CM-ENE MAX
6
Application examples CM-ENS
fill
drain
Cascading
The electrode inputs can be
interconnected as required,
which ensures simple
monitoring of different liquid
levels.
Redundancy
Redundant liquid level
monitoring or control can be
implemented by connecting
the electrodes to two units.
This makes the application
much safer.
Cascading of electrodes
The electrode inputs can
be interconnected as
required, which ensures
simple monitoring of
different liquid levels.
Application examples CM-ENS UP/DOWN
Liquid level control - fill switch position "UP"
Liquid level control - drain switch position "DOWN"
Redundancy
Redundant liquid level
monitoring or control can
be implemented by connecting the electrodes to
two units.
This makes the application
much safer.
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Liquid level monitors and controls
Application examples
Application examples CM-ENN
drain
fill
For commissioning, set both potentiometers (response
sensitivity = R value and ON-delay = time value) to the
minimum value (5) and select a suitable resistance range
(sector).
After all electrodes have been wetted by the liquid being
monitored, turn the sensitivity potentiometer
towards maximum value (100) until the relay energizes. If
the relay does not energize, select a higher q value
(sector) on the device and proceed as before.
Then it has to be checked if the relay de-energizes properly as soon as the electrodes C and MIN are no
longer wet. Liquid levels higher than the maximum level
electrode can be obtained by setting an ON-delay
(TA = 0.1...10 s).
6
Liquid levels lower than the minimum level electrode can
be obtained by setting an OFF-delay time (TR =
0.1...10 s), e.g. for emptying tanks.
Application example CM-ENN UP/DOWN
Electrode
RelayLED
AL1
not wet
RAL1 (21-22) closed
off
AL1
wet
RAL1 (21-22) open
on
AL2
wet
RAL2 (31-32) closed
off
AL2
not wet
RAL2 (31-32) open
on
RAL1 (21-22)
closed
RAL2 (31-32)
off
Supply voltage
failure
Reserve pump for emptying
Pump control ("UP" or "DOWN")
Reserve pump for filling
Cascading of electrodes
The electrode inputs can
be interconnected as
required, which ensures
simple monitoring of
different liquid levels.
Redundancy
Redundant liquid level
monitoring or control can
be implemented by connecting the electrodes to
two units.
This makes the application
much safer.
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Liquid level monitors and controls
Technical data
Type
CM-ENE MIN
Supply circuit
Rated control supply voltage US power consumption
A1-A2
A1-A2
A1-A2
CM-ENE MAX
24 V AC
110-130 V AC
220-240 V AC
approx. 1.5 VA
approx. 1.2 VA
approx. 1.4 VA
Rated control supply voltage US tolerance
Rated frequency
Duty time
-15...+15 %
50-60 Hz
100 %
Measuring circuit
MIN-C, MAX-C
Monitoring function
Response sensitivity
Maximum electrode voltage
Maximum electrode current
Electrode supply line
6
max. cable capacity
max. cable length
dry-running protection
overflow protection
0-100 kq, not adjustable
30 V AC
1.5 mA
3 nF
30 m
Timing circuit
Time delay
Tripping delay
fixed approx. 200 ms
Indication of operational states
Output relay energized
R: yellow LED
Output circuits
13-14
Kind of output
Operational principle 1)
Contact material
Rated operational voltage Ue
(IEC/EN 60947-1)
Mininimum switching voltage / minimum switching current
Maximum switching voltage
AC12 (resistive) 230 V
Rated operational current Ie
(IEC/EN 60947-5-1)
AC15 (inductive) 230 V
DC12 (resistive) 24 V
DC13 (inductive) 24 V
AC rating (UL 508)
Utilization category (Control Circuit Rating Code)
max. rated operational voltage
max. continuous thermal current at B 300
max. making/breaking apparent power at B 300
Mechanical lifetime
Electrical lifetime (AC12, 230 V, 4 A)
Max. fuse rating to achieve
n/c contact
short-circuit protection
n/o contact
1 n/o contact
open-circuit principle
closed-circuit principle
AgCdo
250 V
-/250 V
4A
3A
4A
2A
B 300
300 V AC
5A
3600/360 VA
30 x 10 6 switching cycles
0.3 x 10 6 switching cycles
10 A fast-acting
General data
Dimensions (W x H x D)
Mounting position
Degree of protection
Ambient temperature range
Mounting
enclosure / terminals
operation / storage
22.5 x 78 x 78.5 mm (0.89 x 3.07 x 3.09 in)
any
IP50 / IP20
-20...+60 °C / -40...+85 °C
DIN rail (IEC/EN 60715)
Electrical connection
Wire size
fine-strand with wire-end ferrule
fine-strand without wire-end ferrule
rigid
Stripping length
Tightening torque
2 x 0.75-1.5 mm 2 (2 x 18-16 AWG)
2 x 1-1.5 mm 2 (2 x 18-16 AWG)
2 x 0.75-1.5 mm 2 (2 x 18-16 AWG)
10 mm (0.39 inch)
0.6-0.8 Nm
Standards
Product standard
Low Voltage Directive
EMC Directive
IEC 255-6, EN 60255-6
2006/95/EC
2004/108/EC
Electromagnetic compatibility
electrostatic discharge
radiated, radio-frequency, electromagnetic field
electrical fast transient / burst
surge
conducted disturbances, induced by
radio-frequency fields
Resistance to vibration (IEC 68-2-6)
Mechanical resistance (IEC 68-2-6)
EN 61000-6-2, EN 61000-6-4
IEC/EN 61000-4-2
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
Level 3 (6 kV / 8 kV)
Level 3 (10 V/m)
Level 3 (2 kV / 5 kHz)
Level 4 (2 kV L-L)
Level 3 (10 V)
6g
10 g
Isolation data
Rat. insulation volt. betw. supply, meas. & output circuit (VDE 0110, IEC 60947)
Rated impulse withstand voltage between all isolated circuits (VDE0 110, IEC 664)
Test voltage between all isolated circuits
Pollution category (VDE 0110, IEC 664, IEC 255-5)
Overvoltage category (VDE 0110, IEC 664, IEC 255-5)
Environmental testing (IEC 68-2-30)
1)
Open-circuit principle:
Closed-circuit principle:
250 V
4 kV / 1.2-50 µs
2.5 kV, 50 Hz, 1 min.
3/C
III / C
24 h cycle time, 55 °C, 93 % rel., 96 h
Output relay energizes if the measured value exceeds/drops below the adjusted threshold.
Output relay de-energizes if the measured value exceeds/drops below the adjusted threshold.
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Liquid level monitors and controls
Technical data
Type
Supply circuit
Rated control supply voltage US power consumption
A1-A2
A1-A2
A1-A2
A1-A2
CM-ENS
CM ENS UP/DOWN
24 V AC
110-130 V AC approx. 1.5 VA
220-240 V AC approx. 1.5 VA
380-415 V AC approx. 1.5 VA
24 V AC
110-130 V AC approx. 4 VA
220-240 V AC approx. 4 VA
Rated control supply voltage US tolerance
Rated frequency
Duty time
-15...+10 %
50-60 Hz
100 %
Measuring circuit
MAX-MIN-C
Monitoring function
Response sensitivity
Maximum electrode voltage
Maximum electrode current
Electrode supply line
liquid level control
5-100 k, adjustable
30 V AC
1 mA
10 nF
100 m
max. cable capacity
max. cable length
Timing circuit
Time delay
Tripping delay
approx. 250 ms
Indication of operational states
Control supply voltage
Output relay energized
Alarm relay AL1
Alarm relay AL2
-
Output circuits
11-12/14, 21-22, 31-32
Kind of output
Operational principle 1)
Contact material
Rated operational voltage Ue
Minimum switching voltage / minimum switching current
Maximum switching voltage
Rated operational current Ie
(IEC/EN 60947-5-1)
AC rating (UL 508)
U: green LED
R MAX/MIN: yellow LED
R AL1: yellow LED
R AL2: yellow LED
(IEC/EN 60947-1)
AC12 (resistive) 230 V
AC15 (inductive) 230 V
DC12 (resistive) 24 V
DC13 (inductive) 24 V
Utilization category (Control Circuit Rating Code)
max. rated operational voltage
max. continuous thermal current at B 300
max. making/breaking apparent power at B 300
Mechanical lifetime
Electrical lifetime (AC12, 230 V, 4 A)
Max. fuse rating to achieve short-circuit protection
n/c / n/o contact
1 c/o contact, 1 n/o + 1 n/c contact 2)
open-circuit principle
open- and closed-circuit principle
AgCdo
250 V
-/250 V
4A
3A
4A
2A
B 300
300 V AC
5A
3600/360 VA
30 x 106 switching cycles
0.3 x 106 switching cycles
10 A fast-acting / 10 A fast-acting
General data
Dimensions (W x H x D)
Mounting position
Degree of protection
Ambient temperature range
Mounting
enclosure / terminals
operation / storage
22.5 x 70 x 100 mm (0.89 x 3.07 x 3.94 in)
any
IP50 / IP20
-20...+60 °C / -40...+85 °C
DIN rail (IEC/EN 60715)
Electrical connection
Wire size
Standards
Product standard
Low Voltage Directive
EMC Directive
fine-strand with wire end ferrule
IEC 255-6, EN 60255-6
2006/95/EG
2004/108/EG
Electromagnetic compatibility
electrostatic discharge
radiated, radio-frequency, electromagnetic field
electrical fast transient / burst
surge
conducted disturbances, induced by
radio-frequency fields
Resistance to vibration (IEC 68-2-6)
Mechanical resistance (IEC 68-2-6)
2 x 2.5 mm2 (2 x 14 AWG)
-
IEC/EN 61000-4-2
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
Level 3 (6 kV / 8kV)
Level 3 (10 V/m)
Level 3 (2 kV / 5 kHz)
Level 4 (2 kV L-L)
Level 3 (10 V)
4g
6g
Isolation data
Rated insulation voltage between supply, measuring and output circuit
(VDE 0110, IEC 60947)
Rated impulse withstand voltage between all isolated circuits (VDE0 110, IEC 664)
Test voltage between all isolated circuits
Pollution category (VDE 0110, IEC 664, IEC 255-5)
Overvoltage category (VDE 0110, IEC 664, IEC 255-5)
Environmental testing (IEC 68-2-30)
1)
2)
250 V
4 kV / 1.2 - 50 µs
2,5 kV, 50 Hz, 1 min.
3/C
III / C
24 h cycle time, 55 °C, 93 % rel., 96 h
Open-circuit principle:
Output relay energizes if the measured value exceeds/drops below the adjusted threshold.
Closed-circuit principle: Output relay de-energizes if the measured value exceeds/drops below the adjusted threshold.
1SVR 430 851 R1300 (version with safe isolation)
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
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Liquid level monitors and controls
Technical data
Type
Supply circuit
CM-ENN UP/DOWN
Rated control supply voltage US - power consumption
A1-A2
A1-A2
A1-A2
A1-A2
A1-A2
Rated control supply voltage US tolerance
Rated frequency
Duty time
6
CM-ENN
24 V AC
110-130 V AC approx. 1.5 VA
220-240 V AC approx. 1.5 VA
380-415 V AC approx. 1.5 VA
50-60 Hz
24 V AC
110-130 V AC approx. 2.5 VA
220-240 V AC approx. 3 VA
380-415 V ACapprox. 4 VA
24-240 V AC/DC approx. 2 VA/W
-15...+10 %
50-60 Hz oder DC
100 %
Measuring circuit
MAX-MIN-C
Monitoring function
Response sensitivity
liquid level control
Maximum electrode voltage
Maximum electrode current
Electrode supply line
max. cable capacity
max. cable length
adjustable
5-100 k
30 V AC
1 mA
10 nF
100 m
250 q - 5 kq
8 mA
200 nF
1000 m
adjustable
2.5-50 kq
20 V AC
2 mA
20 nF
100 m
25-500 kq
0.5 mA
4 nF
20 m
Timing circuit
Time delay
Tripping delay
approx. 250 ms
0.1-10 s, adjustable, ON- or OFF-delay
-
Indication of operational states
Control supply voltage
Output relay energized
U: green LED
Output circuits
Kind of output
Operational principle 1)
Contact material
Rated operational voltage Ue
Minimum switching voltage / minimum switching current
Maximum switching voltage
Rated operational current Ie
(IEC/EN 60947-5-1)
Mechanical lifetime
Electrical lifetime (AC12, 230 V, 4 A)
Max. fuse rating to achieve short-circuit protection
R: yellow LED
11-12/14, 21-22, 31-32
15-16/18, 25-26/28
1 c/o + 2 n/c contacts
open-circuit principle
2 c/o contacts
open- and closed-circuit principle
AgCdo
IEC/EN 60947-1
250 V
400 V
-/-
AC12 (resistive) 230 V
AC15 (inductive) 230 V
DC12 (resistive) 24 V
DC13 (inductive) 24 V
Utilization category (Control Circuit Rating Code)
max. rated operational voltage
max. continuous thermal current at B 300
max. making/breaking apparent power at B 300
AC rating (UL 508)
R MAX/MIN: yellow LED
n/c / n/o contact
250 V
4A
400 V
5A
3A
4A
2A
5A
2.5 A
B 300
300 V AC
5A
3600/360 VA
30 x 10 6 switching cycles
0.1 x 10 6 switching cycles
0.3 x 10 6 switching cycles
4 A fast-acting / 6 A fast-acting
General data
Diemensions (W X H X D)
Mounting position
Degree of protection
Ambient temperature range
Mounting
45 x 78 x 100 mm (1.77 x 3.07 x 3.94 in)
any
IP50 / IP20
-25...+65 °C / -40...+85 °C
DIN rail (IEC/EN 60715)
enclosure / terminals
operation / storage
Electrical connection
Wire size
fine-strand with wire end ferrule
2 x 2.5 mm 2 (2 x 14 AWG)
Standards
Product standard
Low Voltage Directive
EMC Directive
IEC 255-6, EN 60255-6
2006/95/EG
2004/108/EG
Level 3 (6 kV / 8kV)
Level 3 (10 V/m)
Level 3 (2 kV / 5 kHz)
Level 4 (2 kV L-L)
Electromagnetic compatibility
electrostatic discharge
radiated, radio-frequency, electromagnetic field
electrical fast transient / burst
surge
conducted disturbances, induced by
radio-frequency fields
Resistance to vibration (IEC 68-2-6)
Mechanical resistance (IEC 68-2-6)
IEC/EN 61000-4-2
IEC/EN 61000-4-3
IEC/EN 61000-4-4
IEC/EN 61000-4-5
IEC/EN 61000-4-6
Level 3 (10 V)
5g
10 g
Isolation data
Rated insulation voltage between supply, measuring and output circuit
(VDE 0110, IEC 60947)
Rated impulse withstand voltage between all isolated circuits (VDE0 110, IEC 664)
Test voltage between all isolated circuits
Pollution category (VDE 0110, IEC 664, IEC 255-5)
Overvoltage category (VDE 0110, IEC 664, IEC 255-5)
Environmental testing (IEC 68-2-30)
1)
Open-circuit principle:
Closed-circuit principle:
250 V
500 V
4 kV / 1.2 - 50 µs
2,5 kV, 50 Hz, 1 min.
3/C
III / C
24 h cycle time, 55 °C, 93 % rel., 96 h
Output relay energizes if the measured value exceeds/drops below the adjusted threshold.
Output relay de-energizes if the measured value exceeds/drops below the adjusted threshold.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com