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
Page 2/35
© 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

UM-X Page 3/35
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

UM-X
Page 4/35
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).

UM-X Page 5/35
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.

UM-X
Page 6/35
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

UM-X Page 7/35
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.

UM-X
Page 8/35
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.

UM-X Page 9/35
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

UM-X
Page 10/35
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!