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- Page 1 Technical Documentation UM-X Measurement evaluation unit in field housing Version: 7 Edition: 2021-02 Art. no.: 207119 FAFNIR GmbH • Schnackenburgallee 149 c • 22525 Hamburg • Germany • T.: +49 / 40 / 39 82 07 – 0 • F: +49 / 40 / 390 63 39...
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Page 2: Table Of Contents
Table of Contents Characteristics of the measurement evaluation unit UM-X ....... 1 Safety Instructions ....................2 Password ............................... 2 Design and Function .................... 3 Name plate ............................3 Buttons ..............................3 Display Window ..........................3 Alarm Light ............................4 Buzzer ..............................4 Installation ...................... - Page 3 Offset Menu (Zero-Point Displacement) ................. 15 Span menu (measuring range) ....................16 6.8.1 Span - Change ........................... 16 6.8.2 Span - Reset ............................17 Relays Menu ............................18 6.9.1 Relays - K1 ... K5 ..........................18 6.9.2 S-P On (Switching Point On) ......................19 6.9.3 S-P Off (Switching Point Off) .......................
- Page 4 © Copyright: Reproduction and translation are permitted only with the written consent of the FAFNIR GmbH. The FAFNIR GmbH reserves the right to carry out product alterations without prior notice. Table of Contents...
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Page 5: Characteristics Of The Measurement Evaluation Unit Um-X
Characteristics of the measurement evaluation unit UM-X The measurement evaluation unit UM-X is a stand-alone filling level display for continuous level sensors. It is directly driven from the power supply and serves at the same time as a power supply for the level sensor. The filling level can be presented in both analogue and digital form on the graphic display. -
Page 6: Safety Instructions
Safety Instructions The measurement evaluation unit UM-X is a stand-alone filling level display for continuous level sensors. Use the system exclusively for this purpose. The manufacturer accepts no liability for any form of damage resulting from improper use. The measurement evaluation unit UM-X has been developed, manufactured and tested in ac- cordance with the state-of-the art technology and the generally accepted safety standards. -
Page 7: Design And Function
Design and Function Name plate The name plate contains e.g. the version of your measurement evaluation unit: Device type UM-S, UM-O, UM-Ex or UM-O Ex • Approvals • Display Window Alarm light Buttons Name plate Figure 1: Design of the measurement evaluation unit UM-X, view from above Buttons With the four buttons you can navigate through the menu structure and configure the meas- urement evaluation unit. -
Page 8: Alarm Light
Alarm Light The measurement evaluation unit is equipped with a red LED “Alarm” to display alarms and system faults. The red LED indicates if the alarm thresholds have been exceeded or fallen below or if faults have occurred (see Section 6.15 „Alarms“). Buzzer The buzzer provides acoustic alarm messages. -
Page 9: Installation
Installation The installation must be carried out only by expert personnel and in accordance with all applicable safety regulations. This also applies to any local safety and ac- cident prevention regulations which are not stated in this guide. Assembly and Connections The measurement evaluation unit UM-X is designed to be wall-mounted. -
Page 10: Pin Assignment
Pin Assignment The wiring must be carried out only with the power disconnected. Special local rules and regulations of relevant Professional Associations and Authorities must be observed (e.g. VDE in Germany). Observe the maximum values of the operating parameters that are stated in the Technical Specifications. -
Page 11: Output Circuits
4.2.2 Output Circuits The relays K1 to K5 (terminals 3 to 17) serve as limit signal indicators. There are 5 potential- free changeover contacts. Special features of the UM-O and UM-O Ex versions of the device: – Non-acknowledgeable overfill protection relays: Relays K1 (terminals 3,4 and 5) –... - Page 12 Now switch on the power supply. Set the 4-mA-point (bottom) and the 20-mA-point (top, container height) on the level sensor. Now go to the measurement evaluation unit menu. Select the "Height" item and enter the container height. If the 4-mA-point is not at the height of the tank bottom, then set the correct level in the "Offset"...
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Page 13: Operation
Operation The message "Info” appears for 5 seconds on display after switching on the measurement evaluation unit. The display then changes automatically to the filling level display in column form. An overview of the menu structure and the factory-set default values can be found in Section 6.14 „Menu structure with factory setting“. -
Page 14: Column Display (Analogue Display)
Column Display (Analogue Display) The column shows the filling level graphically. The scaling is in percent and cannot be changed. The filling level is also displayed digitally (see Figure 4). There are two possible ways of navigating in the column display: Symbol [R] - shows the status of all relays •... -
Page 15: Main Menu
Main Menu The main menu is called up from the "Column display" or "Relay status" display with the but- ton next to the symbol [M]. You may select the following menu items: Unit - Setting the unit • Height - Setting the container height •... -
Page 16: Password
Cursor UP [] and Cursor DOWN [] The cursor is moved through the menus with the functions UP [] or DOWN [] shown on the display. This is how to select the menu items. RETURN [ ] The RETURN symbol [ ] has two functions: "Confirm"... -
Page 17: Unit Menu
Unit Menu When the menu "Unit” is called up, the cursor automatically lies on the currently set unit. The following units are available for selection % - Percent mm - Millimetre Inch - Inch (unit specification on the display with <‘’>) mA–... -
Page 18: Height Menu
Height Menu Enter the container height in the "Height" menu. The height can be up to 25000 mm and is set in 1-millimetre steps. The units inches, percent and milliamperes are calculat- ed and displayed for information. Enter with the functions [+] PLUS and [–] MINUS the corresponding value. -
Page 19: Offset Menu (Zero-Point Displacement)
Offset Menu (Zero-Point Displacement) The distance from container bottom up to the 4-mA-point of the level sensor is called the “Offset". The distance is set in 1-millimetre steps. The units inches, per- cent and milliamperes are calculated and displayed for infor- mation. -
Page 20: Span Menu (Measuring Range)
Span menu (measuring range) If you use a sensor for the fill level measurement with a 20-mA- point which does not match the container height (for example pressure sensors), adjust the sensor in the "Span" menu. In this menu you have two options: •... -
Page 21: Span - Reset
6.8.2 Span - Reset With the "Reset" option, you can reset changes of the measuring range back to the delivery status. Confirm the "Reset" option with RETURN [ ] Select the symbol [Y] - for "Yes, reset" or [N] - for "No, don't reset“. Figure 12: "Reset"... -
Page 22: Relays Menu
Relays Menu In the “Relays” menu you can select the individual relays K1 … K5 for further configuration. Select with the functions UP [] and DOWN [] the desired relay. Confirm your selection with RETURN [ ]. Figure 13: Relays Menu With the device variants UM-O and UM-O Ex (overfill protection devices) you need a password to be able to select the relays K1 and K2. -
Page 23: S-P On (Switching Point On)
6.9.2 S-P On (Switching Point On) "S-P On“ (Switching Point On) shows the value at which the relay activates. The switching on point is set in 0.1 percent steps. The range of values is 0.1 to 99.9 percent. The units millimetres, inches and milliamperes are calculated and displayed for information. -
Page 24: S-P Off (Switching Point Off)
6.9.3 S-P Off (Switching Point Off) "S-P OFF“ (Switching Point Off) shows the value at which the re- lay activates. The switching off point is set in 0.1 percent steps. The range of values is 0.1 to 99.9 percent. The units millimetres, inches and milliamperes are calculated and displayed for information. -
Page 25: Off Delay (Switching Off Delay)
6.9.5 Off Delay (switching off delay) "OFF Delay" shows the switching off delay of the selected relay. The delay time can be between 0 and 255 seconds and is set in 1 second steps. Enter with the functions [+] PLUS and [–] MINUS the desired value. -
Page 26: Acknowledge Menu
6.9.7 Acknowledge Menu In the Acknowl. menu you can set for the selected relay whether it should be able to be acknowledged in the event of an alarm. Select with the functions UP [] and DOWN [] On - Relay can be acknowledged or Off - Relay cannot be acknowledged. -
Page 27: Test Menu
6.10 Test Menu The “Test” menu gives you an overview of the five relays K1 to K5. It shows behind each relay with "On" or "Off" whether this is activated (On) or deactivated (Off). Select relays: You can select a relay using the UP [] and DOWN [] func- tion. -
Page 28: Display Menu
6.11 Display Menu The brightness, the switch-off delay and the switch-on delay can be set to match the display to the working environment. Select with the functions UP [] and DOWN [] the desired option and confirm your entry with RETURN [ ]. Figure 22: "Display"... -
Page 29: Off Delay
6.11.2 Off Delay The afterglow of the display, for example when quitting the menu, is adjusted in the Off-Delay menu (switch-off delay). Default: 60 s Minimum: Maximum: 255 s Step size: 6.11.3 On Delay The (automatic) switch-on of the backlight is set in the On-Delay menu (switch-on delay). Default: 0 s* Minimum:... -
Page 30: Reset Menu
6.13 Info Display This menu item provides information about the device version, • contact details of the manufacturer FAFNIR and the • software version of the measurement evaluation • unit. You return to the main menu by pressing one of the four but- tons. -
Page 31: Menu Structure With Factory Setting
6.14 Menu structure with factory setting Start Main Level 2 Level 3 Possible values Factory setting Display Menu Bar graph presentation Relay status Relays S-P On 0,1 … 99,9 % 94.0 % S-P Off 0,1 … 99,9 % 95.0 % On Delay 0 …... - Page 32 Start Main Level 2 Level 3 Possible values Factory setting Display Menu Unit inch Height 1 … 25.000 mm 3,000 mm 0 … 984,3 “ 100 % A password is required for UM-O and UM-O Ex versions. Offset 0 … {Height} mm 0 mm 0 …...
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Page 33: Alarms
6.15 Alarms 6.15.1 Relay alarm A relay alarm is an over or under threshold limit value which you set. If a relay is deactivated and at the same time the alarm has been set for this relay, then an alarm is triggered. In the event of an alarm, the LED flashes at equal intervals (1 sec. -
Page 34: Maintenance
Telephone +49 / 40 / 39 82 07 – 0 Open (CET) Mon. to Thu. 07:00 a.m. to 05:00 p.m., Fri. 07:00 a.m. to 04:00 p.m. The return of FAFNIR devices is possible only with authorization (RMA) by the FAFNIR Technical Support. Technical Data Ambient temperature - 20 °C …... -
Page 35: List Of Figures
List of Figures Figure 1: Design of the measurement evaluation unit UM-X, view from above ......3 Figure 2: Evaluation unit UM-X, pin assignment ..................6 Figure 3: Display after switching on the measurement evaluation unit ........9 Figure 4: Layout of the display Column display ..................9 Figure 5: Relay Status Display ........................ -
Page 42: Instructions
The power supply, also of connected equipment, must be checked. III.e … maintenance (servicing and emergency repair) In general, the measurement evaluation unit is maintenance-free. In case of a defect it must be send back to FAFNIR or one of its representations. Page 1/2 FAFNIR GmbH Bahrenfelder Str. 19... - Page 43 Equipment marking 1 Manufacturer: FAFNIR GmbH, Hamburg 2 Type designation: UM-… Ex 3 Certificate number: TÜV 07 ATEX 345770 4 Ex marking:: II (1) G [Ex ia Ga] IIC 5 CE marking: 0044 6 Technical data: +50 °C 28.4 V ...
- Page 44 FAFNIR GmbH Schnackenburgallee 149 22525 Hamburg, Germany T: +49 39 82 07 F: +49 390 63 39 E-mail: info@fafnir.com Web: www.fafnir.com...