Mazurczak ENR 300 User manual

ENR 300 level controller |
ETS 100 and ETS 200 signalling devices
Operating instructions
Product codes 400B19EN01 | 401B19EN01
Original operating instructions

Table of contents
Product codes 400B19EN01 | 401B19EN01
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ENR 300 level controller | ETS 100 and ETS 200 signalling devices
Table of contents
1About this document ...........................4
1.1 Read and retain......................................4
1.2 Supporting documents ...........................4
1.3 Symbols..................................................4
2Safety..................................................... 5
2.1 Designated use ......................................5
2.2 Residual risks due to electrical energy...5
2.3 Personnel qualifications .........................6
2.4 Structure of warning notices...................6
3Device description ............................... 7
3.1 Construction...........................................7
3.2 Principle of operation..............................8
3.3 Model plate.............................................9
3.4 Technical data......................................10
3.5 Dimensional drawing............................11
4Assembly ............................................12
5Electrical connection......................... 12
5.1 Connection diagrams ...........................12
5.1.1 Connection diagram - ENR 300 level
controller...............................................12
5.1.2 Connection diagram - ETS 100
signalling device...................................13
5.1.3 Connection diagram - ETS 200
signalling device...................................13
5.2 Electrical connection preparations.......14
5.3 Connecting the device..........................14
5.3.1 Connecting the supply voltage.............14
5.3.2 Connecting the sensor.........................14
5.3.3 Connecting the switching contacts.......16
6Commissioning ..................................17
6.1 Checking the measurement system.....17
6.2 Setting the sensitivity level...................17
6.2.1 Device in conjunction with MTS2u and
MTS3u float switches...........................17
6.2.2 Device in conjunction with NS level
rod probe..............................................18
6.3 Setting the active status of the relays ..19
6.4 Activating test mode.............................20
6.4.1 Test mode steps - ENR 300 level
controller...............................................20
6.4.2 Test mode steps - ENR 100 level
controller...............................................21
6.4.3 Test mode steps - ENR 200 signalling
device...................................................21
7Diagnostics.........................................22
7.1 Troubleshooting....................................22
7.2 Function indicator.................................23
7.3 Sensor signal display ...........................23
7.3.1 Devices with level probes.....................23
7.3.2 Devices with float switches...................24
8Maintenance........................................25
8.1 Regular checking of the measurement
system..................................................25
8.2 Cleaning the device..............................25
9Transport and storage.......................26
10 Disassembly and disposal ................27

1 About this document
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Product codes 400B19EN01 | 401B19EN01
ENR 300 level controller | ETS 100 and ETS 200 signalling devices
1 About this document
1.1 Read and retain
These operating instructions form part of the device.
Retain the operating instructions for the entire service life of the device.
Online availability
www.mazurczak.de
To view the document online, enter the product code.
To be able to view the document in other languages, please register as a user.
1.2 Supporting documents
www.mazurczak.de or from Mazurczak GmbH on request
Document
Contents
Information/data sheet
Device description and technical data
CE Declaration of Conformity
Standards and guidelines to which the
device conforms
1.3 Symbols
Note
Additional information on the device and its handling.
 Requirements that must be satisfied
Individual action step,
safety notice
1 Multiple actions steps in sequence
–Partial step in an action step,
measure as part of a safety notice
Result of an action
■List level 1
–List level 2
Cross-reference

Safety 2
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2 Safety
2.1 Designated use
The device forms part of a measurement system for monitoring and controlling
liquid levels and is suitable exclusively for the following purposes:
■Evaluating the sensor signal of an external signal
■Issuing switching signals via one or more switching outputs to an external
control unit
The measurement system comprises the following parts:
■Device
–ETS 100 signalling device or
–ETS 200 signalling device or
–ENR 300 level controller
■Sensor cable
■External sensor
–Conductive rod-type level probe (NS...) or
–Float switch (MTS...)
The device is designed solely for commercial and industrial use.
The use of the device in explosion hazard areas is prohibited.
Only use the device when in perfect technical condition and without any
unauthorised modifications.
Observe the limit values.
Chapter 3.4 Technical data
Install the device in a cabinet or switch box on a 35 mm bearing rail.
Use devices with a rod-type level probe only in conductive liquids.
Devices with a rod-type level probe can suffer interference from other sensor
systems.
–Do not use any other conductive or capacitive sensor systems in the same
container with a rod-type level probe.
2.2 Residual risks due to electrical energy
Before all work on the device: have the device fully disconnected by a qualified
electrician.

2 Safety
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2.3 Personnel qualifications
Task
Qualifications required
All work
Knowledge of the contents of the device
documentation
Training on using the device
All work on the electrics
Qualified electrician
Transport
Knowledge of the symbols on the transport
packaging
Storage
Assembly
Qualified electrician
Commissioning
Decommissioning
Maintenance and repair work
Troubleshooting and fault
rectification
Removal
Disposal
2.4 Structure of warning notices
Advance warning notices
[SIGNAL WORD]! [Consequences of non-observance] due to [type and source of
danger]
[Measures for danger prevention]
Embedded warning notices
1 [SIGNAL WORD]! [Consequences of non-observance] due to [type and
source of danger]
–[Measures for danger prevention]
Signal words for warning notices
The signal words are used to differentiate the degree of risk and the probability of a
hazard occurring, as well as the severity of the consequences.
Signal word
Degree of
risk
Consequences
DANGER
High
Death or serious injury will result
WARNING
Moderate
Death or serious injury are possible
CAUTION
Low
Minor injuries are possible

Device description 3
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ENR 300 level controller | ETS 100 and ETS 200 signalling devices
3 Device description
3.1 Construction
1
Type designation
6
"RELAY" LED
Chapter 7.3 Sensor signal
display
2
"SENSITIVITY" rotary switch
Chapter 6.2 Setting the
sensitivity level
7
Terminal blocks
3
"ACTIVE" LED
Chapter 7.2 Function
indicator
8
Recess to open cover with sight
glass
4
"Full 1 / Empty 1" slider
"Full 2 / Empty 2" slider
Chapter 6.3 Setting the
active status of the relays
9
Connection diagram
5
"Test" / "Func." slider
Chapter 6.4 Activating test
mode
10
Terminal label

3 Device description
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3.2 Principle of operation
The device functions in accordance with the conductivity principle (conductive fill
level measurement). The device issues a low alternating voltage to the sensors:
■In the case of level rod probes, the electric circuit is closed by means of
the conductive liquid.
■In the case of float switches, the electric circuit is closed by means of
magnetically actuated reed switches.
The LEDs on the device indicate whether or not the electric circuit is closed.
Whether or not the sensor signal is detected depends on the response sensitivity.
The active status of each relay can be set using the sliders. The sliders can be
used to invert the switching signal without having to change the cabling.
Minimum/maximum control using the ENR 300 level controller
When the highest or lowest fill level is reached, the relays switch over.

Device description 3
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ENR 300 level controller | ETS 100 and ETS 200 signalling devices
3.3 Model plate
1
Article number, 10-digit
8
Protection rating
2
Type designation
9
Reference to operating
instructions
3
Sensitivity level [kΩ]
10
CE marking
4
Response time [s]
11
Electro-magnetic compatibility
test mark
5
Relay type
12
Safety integrity level (SIL)
6
Supply voltage [V]
13
Device number, 6-digit
7
Production number, 9-digit

3 Device description
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ENR 300 level controller | ETS 100 and ETS 200 signalling devices
3.4 Technical data
Feature
Value
Mechanical construction
■Design (housing)
Modular housing 22.5 x 111 x 115 mm³
for bearing rail 35 mm
■Dimensions
Chapter 3.5 Dimensional drawing
■Weight
ETS 100: approx. 150 g
ETS 200: approx. 168 g
ENR 300: approx. 168 g
■Material (housing)
Polyamide PA 6.6
■Flammability class
V0 (UL94)
■Overvoltage category
2
■Protection rating
IP20, EN 60529
Climatic stress
■Ambient temperature
Individual mounting:
-20 …+70 °C
Series mounting without distance from other
signal devices or level controllers:
-20 …+60 °C
Series mounting without distance from other
cabinet assemblies:
Take into account heat generation of the
cabinet assemblies.
■Transportation and
storage temperature
-40 …+60 °C
■Relative air humidity
< 75 %
■Condensation
Not permitted
Electrical connection
Terminals, plug-in
2.5 mm², screw terminals, distinctively coded
Power supply
■Rated voltage
20 …253 V AC/DC
■Rated consumption
< 2 VA
Switch output
■Contact
ETS 100:
1 changeover / c/o, floating
ETS 200 and ENR 300:
2 changeover / c/o, floating
■Switching voltage
≤250 V AC
■Switching current
≤5 A (ohmic load)

Device description 3
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Feature
Value
Sensor input
■Sensitivity level
Can be adjusted in 16 steps 0.05 …100 kΩ
■Response time
3 s
■Probe voltage
0.1 …6 V AC
■Probe current
< 5 mA AC
■DC blocking
50 V DC
At higher input voltages, use the EVG ballast.
Sensor cable
■Maximum length
100 m, shielded
3.5 Dimensional drawing
1
Front cover
4
Snap mechanism
2
Terminal blocks
5
Catch
3
Bearing rail

4 Assembly
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4 Assembly
1 Check requirements at the installation site:
–Clean and dry
–Protected against mechanical loads
–Free of vibrations
2 Check the device for damage or water damage.
3 Set the device on top of the bearing rail and snap into place by applying a
slight amount of pressure.
5 Electrical connection
5.1 Connection diagrams
5.1.1 Connection diagram - ENR 300 level controller
1
Switch output (relay 1)
3
Sensor input
2
Switch output (relay 2)
4
Supply voltage

Electrical connection 5
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ENR 300 level controller | ETS 100 and ETS 200 signalling devices
5.1.2 Connection diagram - ETS 100 signalling device
1
Switch output
3
Supply voltage
2
Sensor input
5.1.3 Connection diagram - ETS 200 signalling device
1
Switch output (relay 1)
3
Sensor input
2
Switch output (relay 2)
4
Supply voltage

5 Electrical connection
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5.2 Electrical connection preparations
1 Select cable cross-section and fuse before terminals 21 …24 appropriate for
the supply voltage:
Model plate
Chapter 3.4 Technical data
In DC voltage systems the device temporarily causes a high inrush
current. The inrush current drops to its nominal value within 10 ms.
Electronic fuses in power supply units can be tripped by the high inrush
current.
2 Lever terminal blocks out of the housing using a screwdriver.
5.3 Connecting the device
5.3.1 Connecting the supply voltage
1 Connect an adequately sized fuse upstream of the terminal for the "L" or "+"
connection.
2 Connect wires separately in accordance with the connection diagram.
5.3.2 Connecting the sensor
1 Use a shielded cable with low intrinsic capacitance.
2 Lay the sensor cable using the shortest route:
–Observe the maximum length of the sensor cable.
Chapter 3.4 Technical data
–Keep the sensor cable as far away as possible from sources of stray fields,
switching pulses and inductions, e.g. larger electrical machines, switching
elements and the DC cables to the anode and cathode.
3 Earthing the sensor cable:
–Recommendation: with a single-sided earth connection, lay the cable
shielding to the earthing rod or to the container potential.
With level probe NS, the reference potential is on terminal 11. The
reference potential is connected to functional earth conforming to VDE
0100.
MTS insulated floating switches do not require any functional earthing.

Electrical connection 5
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4 Danger: fires due to incorrect electrical connection
–Level probes: Connect the longest probe rod to the ground probe rod on
terminal 11.
–Floating switches: connect the centre tapping of the changeover contact to
terminal 11.
Connect wires separately:
ENR 300 level controller
Sensor
Connection
Terminal
Level probe NS4
Ground probe rod M
11
Switching probe rod E2
12
Switching probe rod E1
13
Switching probe rod E3
14
Floating switch MTS3u
Centre tapping of the changeover
contacts
11
Depending on the application,
connect the changeover contacts as
NC or NO contacts.
12
13
14
ETS 200 signalling device
Sensor
Connection
Terminal
Level probe NS3
Ground probe rod M
11
Switching probe rod E2
12
Switching probe rod E1
13
Floating switch MTS2u
Centre tapping of the changeover
contacts
11
Depending on the application, connect the
changeover contacts as NC or NO
contacts.
12
13
ETS 100 signalling device
Sensor
Connection
Terminal
Level probe NS2
Ground probe rod M
11
Switching probe rod E1
13
MTSu and MTSt
floating switches
Centre tapping of the changeover
contacts
11
Depending on the application,
connect the changeover contacts as
NC or NO contacts.
13

5 Electrical connection
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5.3.3 Connecting the switching contacts
Recommendation: connect the relay outputs in accordance with the closed circuit
current principle.
 The device is de-energised.
 The relays are in rest position.
1 Connect an adequately sized fuse upstream of each consumer. Observe the
maximum switching voltage and maximum switching current.
Chapter 3.4 Technical data
2 Depending on the application, connect the floating relay outputs as NC or NO
contacts. Take the active status of the relays into account:
Chapter 6.3 Setting the active status of the relays

Commissioning 6
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6 Commissioning
6.1 Checking the measurement system
 The measurement system is fully installed and connected.
 The wiring corresponds to the connection diagram.
 The supply voltage corresponds to the specification on the model plate.
 The ambient conditions have been observed.
1 Switch on the device.
The "ACTIVE" LED is lit.
2 Compare the response and switching behaviour of the device with the settings
of the rotary switch and the slider.
6.2 Setting the sensitivity level
To avoid unnecessary switching operations of the relays and failures, adjust the
sensitivity level to the electrical conductance of the liquid.
If the conductivity changes, re-adjust the sensitivity level. The conductivity can
change for the following reasons:
■Change in conductivity of the liquid, e.g. due to a change in temperature
or concentration
■Change in the conductivity by exchanging the liquid
■Change in the conductivity of the probe rod material/liquid boundary layer,
e.g. in the event of a passive layer or steam formation.
6.2.1 Device in conjunction with MTS2u and MTS3u float switches
1 Set the switch to "Func." for the function test.
2 Set the "SENSITIVITY" rotary switch to "3".

6 Commissioning
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Product codes 400B19EN01 | 401B19EN01
ENR 300 level controller | ETS 100 and ETS 200 signalling devices
6.2.2 Device in conjunction with NS level rod probe
The greater the vertical distance between the probe rod and ground probe rod, the
greater the resistance.
1 Set the switch to "Func." for the function test.
2 Set the "SENSITIVITY" rotary switch to "1".
3 Immerse all probe rods by approx. 20 mm and wait for several minutes until a
cover layer forms.
4 Slowly turn the "SENSITIVITY" rotary switch clockwise, step by step, and at
each stage wait for approx. 5 s for the response of the device on the LEDs and
the switch outputs:
Step
Switch-on value [Ω]
Switch-off value [Ω]
Meaning of switch-on
value and switch-off
value
Switch-on value not
reached: rod-type probe
is wetted.
Switch-off value
exceeded: rod-type
probe is not wetted.
1
≤50
≥100
2
≤100
≥200
3
≤200
≥300
4
≤300
≥500
5
≤500
≥800
6
≤800
≥1300
7
≤1300
≥1800
8
≤2300
≥3500
9
≤3500
≥5000
10
≤6000
≥9000
11
≤10000
≥14000
12
≤15000
≥20000
13
≤20000
≥24000
14
≤25000
≥33000
15
≤45000
≥60000
16
≤100000
≥140000
5 If the LED displaying the sensor signal is not lit, move the switch one step
further until the LED comes on.
When all LEDs and switch outputs have responded, the sensitivity is
correctly set.
6 Recommendation: to partially compensate for the conductivity change of the
liquid, set the "SENSITIVITY" rotary switch one step higher.

Commissioning 6
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ENR 300 level controller | ETS 100 and ETS 200 signalling devices
6.3 Setting the active status of the relays
Set the active status of the relays using the sliders:
Relay status
Slider position
Active relay output
(terminals)
ETS 100 signalling device
Relay actuated
"Full"
42, 43
"Empty"
41, 43
ETS 200 signalling device
ENR 300 level controller
Relay 1 actuated
"Full 1"
42, 43
"Empty 1"
41, 43
Relay 2 actuated
"Full 2"
32, 33
"Empty 2"
31, 33

6 Commissioning
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Product codes 400B19EN01 | 401B19EN01
ENR 300 level controller | ETS 100 and ETS 200 signalling devices
6.4 Activating test mode
1 Set "Test / Func." slider to "Test".
2 To test the function of the relays and LEDs, set the step on the "SENSITIVITY"
rotary switch.
6.4.1 Test mode steps - ENR 300 level controller
Probe rods
Sensor signal
display
Slider position
Active relay
output
(terminals)
Steps 1 and 5 … 16
E1 & E2 are not
wetted
"RELAY 1":
LED off
"Full"
42, 43
"Empty"
41, 43
E2 is not wetted
"RELAY 2":
LED off
"Full"
32, 33
"Empty"
31, 33
Step 2
M, E1 & E2 are
wetted
"RELAY 1":
LED lit
"Full"
41, 43
"Empty"
42, 43
E2 is not wetted
"RELAY 2":
LED off
"Full"
32, 33
"Empty"
31, 33
Step 3
E1 & E2 are not
wetted
"RELAY 1":
LED off
"Full"
42, 43
"Empty"
41, 43
M & E2 are
wetted
"RELAY 2":
LED lit
"Full"
31, 33
"Empty"
32, 33
Step 4
M, E1 & E2 are
wetted
"RELAY 1":
LED lit
"Full"
41, 43
"Empty"
42, 43
M & E2 are
wetted
"RELAY 2":
LED lit
"Full"
31, 33
"Empty"
32, 33