fafnir UM-X Guide

Technical Documentation
FAFNIR GmbH • Bahrenfelder Str. 19 • D-22765 Hamburg • Telephone: [phone] • Fax: [phone]
10/2007
Edition: 1
Item No.: 207120
UM-X
Field display for continous level sensors

UM-X
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© Copyright:
Reproduction and translation only with the written consent of the FAFNIR company.
FAFNIR reserves the right to make product modifications without prior notice.
Table of Contents
1 Features of the UM-X measurement analysis system ............................... 4
2 Safety instructions ....................................................................................... 5
2.1 Password ..........................................................................................................5
3 Design and operation .................................................................................. 6
3.1 Rating plate .....................................................................................................6
3.2 Function buttons .............................................................................................6
3.3 Display window ...............................................................................................7
3.4 Alarm lamp...................................................................................................... 7
3.5 Buzzer ..............................................................................................................7
4 Installation ................................................................................................... 8
4.1 Assembly and connections .............................................................................8
4.2 Pin assignment ................................................................................................9
5 Commissioning........................................................................................... 11
6 Operation ................................................................................................... 13
6.1 Layout of the display ....................................................................................13
6.2 Bar graph display (analogue filling level display) .......................................14
6.3 Relay status display .......................................................................................14
6.4 Main menu ....................................................................................................15
6.4.1 Navigation............................................................................................15

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6.5 Relays selection menu...................................................................................17
6.5.1 K1 to K5 selection menu .....................................................................17
6.5.2 Settings menu S-P On (switching-on point) .......................................18
6.5.3 Settings menu S-P Off (switching-off point) ......................................19
6.5.4 Settings menu On Delay......................................................................19
6.5.5 Settings menu Off Delay .....................................................................20
6.5.6 Settings menu Alarm ...........................................................................20
6.6 Settings menu Unit .......................................................................................21
6.7 Settings menu Height ...................................................................................21
6.8 Settings menu Offset (zero point offset) ....................................................22
6.9 Selection menu Span (Adjustment) .............................................................23
6.9.1 Settings menu Change ........................................................................24
6.9.2 Settings menu Reset ............................................................................24
6.10 Selection menu Test .......................................................................................25
6.11 Selection menu Reset .....................................................................................26
6.12 Information display ........................................................................................26
7 Alarms......................................................................................................... 27
7.1 Relay alarm ....................................................................................................27
7.2 Error ...............................................................................................................27
7.2.1 Meaning of the error codes .........................................................................27
8 Technical data ............................................................................................ 28
9 Menu structure with the factory settings ................................................ 29
Appendix ............................................................................................................ 31
1 EC-declaration of conformity .......................................................................31
2 EC-type examination certificate ...................................................................32
3 Operating instructions ..................................................................................34

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1 Features of the UM-X measurement analysis system
The UM-X measurement analysis system is a standalone display for continuous
filling level sensors. It is powered directly by the mains voltage and provides the
power supply for the filling level sensor at the same time. The filling level can be
displayed as analogue and digital on the graphic display.
The UM-X measurement analysis system also provides five potential-free change
over contacts. The switching points of the five relays are adjusted via the display
using 4 buttons and the statuses of the relays can be checked using the display.
The UM-X measurement analysis system
• can be used for all filling level sensors with a 4-20 mA interface.
• can be supplied with ATEX approval (intrinsically safe electric circuit).
• can be supplied as approved overfill prevention.
• shows the filling level as digital and analogue display.
• has five potential-free change over contacts as binary outputs.
• provides simple, menu-driven operation using a graphical display.
• is installed in splash-proof case.
There are 4 equipment versions of the UM-X measurement analysis system:
UM-SUM-S
UM-SUM-S
UM-S
Standard version: Measurement analysis with 5 relay outputs and connection of
a continuous filling level sensor and an external acknowledgement button.
UM-OUM-O
UM-OUM-O
UM-O
Measurement analysis with 5 relay outputs and connection of a continuous filling
level sensor and an external acknowledgement button.
Also approved in accordance with German law as overfill prevention.
UM-ExUM-Ex
UM-ExUM-Ex
UM-Ex
Measurement analysis with 5 relay outputs and connection of a continuous filling
level sensor and an external acknowledgement button.
Also approved for the connection of an explosion protected sensor (intrinsically
safe sensor circuit).
UM-O ExUM-O Ex
UM-O ExUM-O Ex
UM-O Ex
Measurement analysis with 5 relay outputs and connection of a continuous filling
level sensor and an external acknowledgement button.
Also approved in accordance with German law as overfill prevention and for the
connection of an explosion protected sensor (intrinsically safe sensor circuit).

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2 Safety instructions
The UM-X measurement analysis system is used as a standalone filling level
display for continuous filling level sensors. Please only use the system for this
purpose. The manufacturer accepts no liability for any damage resulting from
other uses!
The UM-X measurement analysis system has been developed, manufactured and
inspected in accordance with state-of-the-art technology and with recognised
technical safety rules and regulations. Nevertheless, hazards may arise from its
use. Therefore, please observe the following safety instructions:
• Do not make any changes, add anything to or rebuild the system without
obtaining the manufacturer’s permission first.
• Allinstallation andmaintenance work, with the exception of the function test,
must only be carried out when the power supply is disconnected.
• The measuring transducer must be installed outside a potentially explosive
zone.
• Installation, operation, and maintenance of the UM-X measurement analysis
systemmustonlybeperformedbycompetentpersonnel.Specialised knowledge
must be obtained by undergoing regular training.
• Operators, setting up and maintenance personnel must observe all the
applicable safety regulations. This also applies to the local safety and accident
prevention regulations not mentioned in these operating instructions.
The safety instructions in this manual are identified as follows:
If you do not observe these safety instructions, there is a risk of an
accident or the measurement analysis system can be damaged.
Useful information that will guarantee proper function of the system
or facilitate your work.
2.1 Password
Youneedapassword for somemenuitemsin order tobeableto launch
the items or make changes.
The password will be provided on an accompanying sheet and must
only be used by instructed persons.

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3 Design and operation
3.1 Rating plate
Among other things, the rating plate contains information about the version of
your measurement analysis system:
• Device type UM-S, UM-O, UM-Ex or UM-O Ex.
• Approval mark.
3.2 Function buttons
You navigate through the menu structure shown on the display and change
parameters in the settings menus using the four function buttons.
The functions of the buttons are shown in the function button field of the display
and change partially in the individual menus (see Chapter 6 "Operation" Section
6.1, "Layout of the display").
Fig. 1: Layout of the UM-X measurement analysis system, view from above
(3) Display window
(4) Alarm lamp
(2) Function button
(1) Rating plate

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3.3 Display window
The display is used for showing the filling level information and for setting the
parameters for the measurement analysis.
3.4 Alarm lamp
The measuring transducer is equipped with a red "Alarm" light emitting diode
(LED) for displaying alarms and system faults.
The red LED signalises the exceeding or dropping below the alarm thresholds set
using the software and the occurrence of faults (see the "Alarms" Chapter).
3.5 Buzzer
The buzzer is used for the acoustic alarm signal. The alarm tone is interrupted as
soon as the acknowledgement button has been pressed, the reason for the alarm
has been cancelled or the fault has been rectified. The buzzer volume cannot be
adjusted.

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4 Installation
Installationmustonlybeperformedbycompetentpersonnelobserving
all the applicable safety regulations. This also applies to any local
safetyregulationsand accident prevention regulations not mentioned
in these operating instructions.
4.1 Assembly and connections
TheUM-X measurementanalysis systemis intended for wall mounting. It can only
be mounted and connected while it is open:
• Undo the four cover screws.
• Carefullyremove thecover. It is still connected to the printed circuitboard with
two ribbon cables.
• Unplug the connectors in order to be able to completely remove the cover.
• Now you can mount the measurement analysis system.
The measurement analysis system must be installed outside the
potentially explosive area. Sensors for the potentially explosive
atmosphere can be connected to the UM-Ex and UM-O Ex devices.
• Connect the cables for the auxiliary power and the filling level sensor to the
measurement analysis system after it has been mounted. An external
acknowledgement button and external control units can optionally be
connected.
See Section 4.2 "Pin assignment" in this Chapter.
Close the measurement analysis system again after mounting and connection of
all electrical cables.
• First, plug the wide ribbon cable back into its holder which has reverse polarity
protection.
• Now, connect the narrow ribbon cable back to the membrane keypad. Pay
particular attention here to the correct seating of the socket as this does not
have reverse polarity protection.
• Close the measurement analysis system using the four cover screws.

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4.2 Pin assignment
Wiring work must only be performed when the equipment is
disconnected from the power supply. The special VDE regulations and
the local installation regulations must be observed.
In doing so observe the maximum values for operating parameters
indicated on the wiring diagram.
Sensor connection
The sensor is connected to the terminals 1 (-) and 2 (+).
21
-+
12 18 19 20 22
Fig. 2: Measurement analyser UM-X: Pin assignment
(1) Keyboard connection
(2) Display connection
(3) Sensor
(4) Acknowledgement button (5) Auxiliary power

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Output circuits
The relays K1 to K5 (terminals 3 to 17) are used for limit monitoring. There are 5
potential-free change-over contacts available here.
Special features of the UM-O and UM-O Ex equipment versions:
• Overfill prevention relay cannot be acknowledged:
Relay K1 (terminals 3, 4 and 5)
• Overfill prevention relay can be acknowledged:
Relay K2 (terminals 6, 7 and 8).
Auxiliary power
The auxiliary power is connected to the terminals PE, N and L of the printed circuit
board. For the 24 V DC version, + must be connected to L and - to N.
External acknowledgement button
Itispossible to use an external acknowledgement button (potential-free normally
open contact). This is connected to the Quit terminals (18 and 19).
CAUTION! MAINS VOLTAGE!

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5 Commissioning
The measurement analysis system is supplied with factory settings (default) and
must be adapted to the local conditions.
Detailedinformation about configuration of themeasurementanalysis
system can be found in Chapter 6 "Operation".
The values for the factory settings are listed in Chapter 9 "Menu
structure with factory settings".
Proceed as follows for commissioning the system:
1. Install the UM-X measurement analysis system in its designated place and
install the filling level sensor in the tank.
2. Connect at least the auxiliary power and the sensor.
3. Pay attention during assembly that the ribbon cables from the display and
from the membrane keypad are plugged in correctly before closing the
measurement analysis system.
4. Now switch on the auxiliary power.
5. Adjust the 4 mA point (bottom) and the 20 mA point (top, tank height) on the
filling level sensor.
6. Now go to the measurement analysis menu. Select the item "Height" and set
the tank height.
7. If the 4 mA point is not at the height of the tank bottom, set the correct height
in the "Offset" menu.

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8. If the 20 mA point does nor correspond to the tank height,
• fillyourtank as full aspossible(the 20 mA pointmustbe above the tank
height!),
• measure the level with a dipstick
• and enter the value in the "Span - Change" menu item.
The 20 mA point must not be less than tank height.
For the UM-O and UM-O Ex equipment versions (overfill prevention),
the 20 mA point must correspond to the height of the tank.
9. Now you can set the relay switching points.
It can happen that a switching point is less than 4 mA or more than
20mA by changing the offset or the span factor. If this happens, the
relays do not switch as desired and malfunctions can occur.
Check the current values in the menu items "Relays -> K1...K5 -> S-P On
and S-P Off". If the current values are outside the desired range,
"< 4.00 mA" or "> 20.00 mA" will be displayed under the milliampere
unit.

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Fig. 3:
The "Information" display is
shown for 5 seconds after
switching on the measurement
analysis system
Fig. 4:
Layout of the display
"Bar graph" display
(1) Data field
(2) Information field
(3) Function button
field
6 Operation
The"Information"displayisshownfor5secondsafterswitchingonthemeasurement
analysis system. The display changes automatically afterwards to the "bar graph"
filling level display.
An overview of the menu structure and the factory default values in tabular form can
be found in Chapter 9 "Menu structure with factory settings".
6.1 Layout of the display
The display is divided into 3 areas (see Fig. 4):
Data field (1)
The current filling level is displayed digitally on the top line.
Information field (2)
The information field has three functions:
• Display of information.
• Navigation using selection menus:
You navigate through the menu structure using the buttons.
• Changing parameters in settings menus:
You make the changes using the buttons.

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Function button field (3)
The right-hand column of the display is used as the function button field. The
functions of the adjacent buttons are displayed here. The functions are matched
to the respective menu options.
6.2 Bar graph display (analogue filling level display)
The column graphically represents the filling level. The scaling is made in percent
andcannotbechanged.Thefilling level is also displayed digitally inthedatafield.
You have two navigation options in the bar graph view:
Symbol [R] - displays the status of all relays.
Symbol [M] - goes to the main menu.
6.3 Relay status display
The "relay status" display gives an overview of the current
status of all relays:
• a solid dot stands for the status "On Relay".
• an empty dot stands for the status "Off Relay".
At the same time, you have an overview of the relay
switching points which you set in the menu items "S-P On"
and "S-P Off".
The symbol
[B] - goes to the bar graph.
[M] - goes to the main menu.
Fig. 5:
"Relay status"
display

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6.4 Main menu
The main menu is invoked from the "bar graph" or "relay status" displays with
the button next to the symbol [M].
You can select the following menu items:
• Relays - Selection menu for configuration of the relays.
• Unit - Setting the unit.
• Height - Setting the tank height.
• Offset - Setting the distance from the tank bottom to the 4 mA point
of the filling level sensor.
• Span - Selection menu for adjusting sensors, e.g. pressure sensors.
• Test - Selection menu for manual control of the relays.
• Reset - Selection menu, reset all values to the factory settings.
• Information - Display of the device information
If you are in a selection or settings menu and do not make any entries for 3 minutes,
the display automatically returns to the last display - bar graph or relay status.
Parameter changes which have not been confirmed are discarded.
6.4.16.4.1
6.4.16.4.1
6.4.1
NavigationNavigation
NavigationNavigation
Navigation
There are four functions available for scrolling in the various menu items, for
invoking the selected menu item and for saving changed parameters.
Cursor UP [Ç] and DOWN [È]
The cursor is moved through the displayed selection menu using the UP and
DOWN functions. You select a menu item in this way.
Fig. 6: Main menu and navigation functions
(1) UP
(2) RETURN
(3) DOWN
(4) BACK

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RETURN [ ]
The symbol RETURN has two functions:
• "Select" in the selection menu
You confirm your selection with RETURN in the menu selection and invoke the
next selection menu or a settings menu.
• "Confirm, save and return" in the settings menu
If you have changed parameters in a settings menu, you confirm and save your
entries using RETURN. After saving, the menu selection one level higher is
automatically shown on the display.
BACK [Å]
The symbol BACK has two functions:
• "Back without selecting" in the selection menu
Using BACK, you return one level higher in the menu selection.
• "Back without saving" in the settings menu
If you have changed parameters in a settings menu, you can exit from the menu
item without saving the new settings using BACK.

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6.5 Relays selection menu
The "Relays" menu item opens a selection menu where you can select a relay (K1
to K5) using the UP [Ç] and DOWN [È] functions. Confirm your selection with
RETURN [ ] .
The relays K1 and K2 can only be selected and configured together for
the UM-O and UM-O Ex (overfill prevention) equipment versions.
6.5.16.5.1
6.5.16.5.1
6.5.1
K1 to K5 selection menuK1 to K5 selection menu
K1 to K5 selection menuK1 to K5 selection menu
K1 to K5 selection menu
A submenu with the setting options opens for the selected relay.
• S-P On - Switching Point On
• S-P Off - Switching Point Off
• On Delay
• Off Delay
• Alarm - Configuration of the alarm
Select a menu item with the UP [Ç] and DOWN [È] keys and confirm your
selection with RETURN [ ] .
Fig. 7: Menu guidance: Selecting relays

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6.5.26.5.2
6.5.26.5.2
6.5.2
Settings menu S-P On (switching-on point)Settings menu S-P On (switching-on point)
Settings menu S-P On (switching-on point)Settings menu S-P On (switching-on point)
Settings menu S-P On (switching-on point)
The "S-P On" (Switching Point On) menu shows you the
value at which the relay is activated.
The switching-on point is specified in percent in steps of 0.1
percent. The millimetre, inch and milliampere units are
calculated and displayed for information and control.
Using the functions
[+] PLUS and
[-] MINUS
you specify the switching-on point. Confirm your selection
with RETURN [ ] .
The current value must not be less than 4 mA and must not be more
than 20 mA so that malfunctions do not occur.
The following information applies only to relays K1 and K2:
For the UM-O and UM-O Ex equipment versions (overfill prevention),
you need a password for changing the switching-on point.
The range of values for these versions is between 0.1 and 98.9 percent.
The switching-on point (S-P On) is always less than the switching point
Off (S-P Off) and can never exceed this.
Fig. 8:
"S-P On" display

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6.5.36.5.3
6.5.36.5.3
6.5.3
Settings menu S-P Off (switching-off point)Settings menu S-P Off (switching-off point)
Settings menu S-P Off (switching-off point)Settings menu S-P Off (switching-off point)
Settings menu S-P Off (switching-off point)
The "S-P Off" (Switching Point Off) menu shows you the
value at which the relay is deactivated.
The switching-off point is specified in percent in steps of 0.1
percent. The range of values is 0.1 to 99.9 percent. The
millimetre, inch and milliampere units are calculated and
displayed for information.
Using the functions
[+] PLUS and
[-] MINUS
you specify the switching-off point. Confirm your selection
with RETURN [ ] .
The current value must not be less than 4 mA and must not be more
than 20 mA so that malfunctions do not occur.
The following information applies only to relays K1 and K2:
For the UM-O and UM-O Ex equipment versions (overfill prevention),
you need a password for changing the switching-off point.
The range of values for these versions is between 0.1 and 99.0 percent.
The switching-off point (S-P Off) is always higher than the switching-
on point (S-P On) and can never be lower than this.
6.5.46.5.4
6.5.46.5.4
6.5.4
Settings menu On DelaySettings menu On Delay
Settings menu On DelaySettings menu On Delay
Settings menu On Delay
You define the 'On Delay' of a relay in the "On Delay"
settings menu.
The delay time can be between 0 and 255 seconds and is
specified in 1-second steps.
Using the functions
[+] PLUS and
[-] MINUS,
you enter the value. Confirm your selection with
RETURN [ ] .
Fig. 10:
"On Delay" display
Fig. 9:
"S-P Off" display

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6.5.56.5.5
6.5.56.5.5
6.5.5
Settings menu Off DelaySettings menu Off Delay
Settings menu Off DelaySettings menu Off Delay
Settings menu Off Delay
You define the 'Off Delay' of a relay in the "Off Delay"
settings menu.
The delay time can be between 0 and 255 seconds and is
specified in 1-second steps.
Using the functions
[+] PLUS and
[-] MINUS,
you enter the value. Confirm your selection with
RETURN [ ] .
For the UM-O and UM-O Ex equipment versions (overfill prevention),
the Off Delay is always 0 seconds and cannot be changed.
6.5.66.5.6
6.5.66.5.6
6.5.6
Settings menu AlarmSettings menu Alarm
Settings menu AlarmSettings menu Alarm
Settings menu Alarm
In the "Alarm" settings menu you set the relay alarm with
the functions
[Ç] UP and
[È] DOWN
to the values
Off - for OFF or
On - for ON.
Confirm your selection with RETURN [ ] .
See also Chapter 7 "Alarms".
For the UM-O and UM-O Ex equipment versions (overfill
prevention), the alarm for K1/K2 is always set and cannot be
changed to "Off".
Fig. 11:
“Off Delay“ display
Fig. 12:
“Alarm“ display