Universal Measuring Device UMG96L Operating Instructions Brief instructions see last page Mean value Programming mode Sum measurement Phase to phase L1-N / L1-L2 L2-N / L2-L3 L3-N / L3-L1 Dok Nr. 1.031.014.0 Peak value Password Voltage transformer Current transformer Minimum value Supply Key 1 Key 2 Janitza electronics GmbH Vor dem Polstück 1 D-35633 Lahnau Support Tel. (0 64 41) 9642-22 Fax (0 64 41) 9642-30 e-mail: info@janitza.de Internet: http://www.janitza.
Table of contents The meaning of symbols Hints for the user Receipt control Contents of delivery Hints for maintenance Service 3 3 3 3 4 4 Product description 5 Intended use Functional description 5 5 Installation Mounting place Measuring and operating voltage Current measurement Sum current measurement Connecting options Putting into service 6 6 6 7 7 8 Indication mode Programming mode Key functions Table, measured value indication Current transformer Voltage transformer Averaging times Measured
The meaning of symbols Receipt control The symbols, which are used in this manual, have the following meaning: In order to ensure a perfect and safe use of the device, a proper transport, expert storage, erection and mounting and careful usage and maintenance is required. In case that a safe operation can no longer be granted, the device has to be put out of service and has to be protected against unintentional putting into service.
Hints for maintenance Service Before delivery the device is tested in various safety checks and marked with a seal. If the device is opened, these checks must be repeated. For instruments, which are opened outside the manufacturing works, no warranty is granted whatsoever. If there are questions, which are not described in this manual, please contact us directly.
Product description Intended use Functional description The UMG96L is suitable for fix mounting and the measurement of voltage, current, power etc. in low voltage switchgear. The measurement is designed for 3 phase systems with neutral conductor (TN and TT-mains). The UMG96L is suitable for mounting in fix and weather protected panels. Conducting panels must be earthed. Due to the high resistance against interference, the UMG 96L is suitable for continous and unsupervised operation.
Installation Mounting place The UMG96L is suitable for a fix insertion into low and medium voltage switchgear. Any mounting position is possible. Measuring and operating voltage The operating voltage of the UMG96L is generated by the measuring voltage. The measurement is designed for three phase systems with neutral conductor (TN and TT mains).
Current measurement Sum current measurement The current measurement is carried out via ../ 5A or ../1A current transformers. In case that the current has to be measured by an Amperemeter in addition to the UMG96L, the Amperemeter has to be connected in series to the UMG96L. In mains with voltage up to 300VAC against ground, currents up to 5A can be connected and measured directly to the UMG 96L.
Connecting options UMG96L UMG96L Voltage MeasureCurrent ment measurement see type plate 0,02 .. 5A k L1 L2 L3 PEN L1 L2 L3 N 1k 1l 2k 2l 3k 3l l l ../5(1)A k l ../5(1)A k ../5(1)A Diagr.: Connection example 1 Four wire measurement with three current transformers k l ../5(1)A L1 L2 L3 N 1k 1l 2k 2l 3k 3l 5 6 7 8 9 10 1k 1l 2k 2l 3k 3l u u u x x x X X X l l ../5(1)A k l ../5(1)A k ../5(1)A Verbraucher Consumer k Diagr.
UMG96L UMG96L Voltage MeasureCurrent ment measurement see type plate 0,02 .. 5A Voltage MeasureCurrent ment measurement see type plate 0,02 .. 5A 1 2 3 4 1 2 3 4 5 6 7 8 9 10 L1 L2 L3 N 1k 1l 2k 2l 3k 3l L1 L2 L3 N k l l ../5(1)A k ../5(1)A k ../5(1)A Verbraucher Consumer U U U Diagr.: Connection example 5 Medium voltage measurement with three voltage transformers and three current transformers. UMG96L Voltage Measurement see type plate L1 L2 L3 N L1 L2 L3 U U U k l ../5(1)A k l ..
Putting into service The putting into service of the UMG 96L should be carried out as follows: Installation The UMG96L is designed for mounting in low voltage distributions, which contain overvoltage in measurement category III. The UMG96L is suitable for installation in fixed and weather proof panels. Conducting panels must be earthed. Any mounting position is possible. For mounting on front panels or doors, the delivered fixing brackets have to be used. Panel max. 61234 1234 1234 42 Diagr.
Connect measuring current The UMG96L is designed for the connection of ../1A and ../5A current transformers. With the current inputs, only alternating current but no direct current can be measured. Ꮨ Attention! Current transformers may not be handled in open condition, as there might be live voltage at the secondaries.
Elimination of errors Error Reason Elimination Display dark. Prefuse released. Device defective. Insert fuse. Send the device to the producer for repair. Measured value can- The indication has been deleted from measured value senot be called up. lection. Add the required measured value indication to the measured value selection. No current indication. Corresponding voltage is not connected. Connect corresponding voltage. Current too small.
Error Reason Elimination Phase shift ind/cap. Current path is assigned to the wrong voltage path. Check and correct connection. Programmed get lost. data The device was exposed to electro magnetical disturbance, which was higher than those mentioned in the technical data. Improve external protection measures such as protection, filtering, earthing and local separation. Real power too small Current transformer ratio is / too high. programmed incorrectly.
Usage and indication The usage of the UMG96L is carried out via the keys one and two. Measured values and programming data are indicated on the liquid crystal display. You must distinguish between Indication mode and Programming mode. By entering a password, you can avoid unintentional change of programming data. Indication mode In indication mode please scroll through the programmed measured value indications by using the keys 1 and 2.
Key functions Programming mode Password Indication mode simultaneous Change mode 1 2 simultaneous Measured values 2 Programming menu long long 1 2 Programming menu Measured values Measured values long Measured values 1 short short Scroll 2 Programming menu short Programming Programming menu 1 Confirm selection 2 short digit +1 long digit -1 2 short value *10 (decimal point to the right) 2 flashing long value /10 (decimal point to the left) Page 15
Table, measured value indication Measured values L1-N Voltage L2-N Voltage L3-N Voltage Maximum values L1-N Voltage L2-N Voltage L3-N Voltage Minimum values L1-N Voltage L2-N Voltage L3-N Voltage Measured values L1-L2 Voltage L2-L3 Voltage L3-L1 Voltage Maximum values L1 Real power L2 Real power L3 Real power Minimum values L1 Real power L2 Real power L3 Real power Measured values L1 Current L2 Current L3 Current Mean values L1 Current L2 Current L3 Current Maximum values L1 Current L2 Current L3 Cu
Measured values L1 Reactive power L2 Reactive power L3 Reactive power Mean values L1 Reactive power L2 Reactive power L3 Reactive power Max. values (ind) L1 Reac. power L2 Reac. power L3 Reac. power Measured value Sum reactive power Mean value Sum reactive power Max.
Current transformer Current transformers with either 1A or 5A secondary can be connected to the UMG96L. A transformer ratio of 5A/5A is preset by the manufacturer. In programming mode the current transformer setting is marked by the symbol „CT“. Programming In programming mode please scroll to the current transformer ratio by pressing key 2. Confirm the selection by pressing key 1. The first digit of the primary current flashes and can be changed by pressing key 2.
Voltage transformer The phase to phase voltage (L-L) is indicated on display of the UMG 96L as secondary and primary voltage. The transformer ratio is calculated from the programmed primary and secondary voltage. In programming mode, the voltage transformer settings are marked by the symbol „VT“. The standard version is preset by the manufacturer with a ratio of 400V/400V. The secondary voltage is always indicated in „V“. The corresponding symbol „V“ is not displayed.
Averaging times A mean value is calculated for the most at the current and power values. A common averaging time for the current measured values L1, L2, L3 and N , as well as one for power measured values, real power, apparent power and reactive power is programmable. Method of taking the mean The used exponential method reaches at least 95% of the measured value after the set averaging time.
Measured value indication Once in a second all measured values are calculated and can be indicated on the display. Two methods are available for calling up the measured value indications (see table 1). - The selection of measured value indications via the keys 1 and 2, herein called measured value selection. - The automatically rotating indications of selected measured value indications, herein called measured value rotation.
Measured value selection All measured values stated in table 1 (see page 16 and 17) can either be displayed via keep 1 and 2 measured value selection or automatically measured value rotation. All measured values for the measured value selection are preset by the manufakturer. For the automatical measured value rotation nothing is preset by the manufakturer. The condition of the selection is indicated by the output symbols.
Delete minimum and maximum values In programming mode, „Deletion of minimum and maximum values“ is marked by arrows upwards and downwards. All minimum and maximum values will be deleted simultaneously in menu „Deletion of minimum and maximum values“. An exception is the maximum value of the current mean value. The maximum value of the current mean value can also be deleted directly in indication menu by an extended pressing of key 2.
Working hours counter The working hours counter detects the time, in which the UMG96L measures and indicates data. The time is measured with a resolution of 15 minutes and is indicated in hours. The working hours counter cannot be deleted. L1 h L2 L3 Display example: The UMG96L indicates 40201 working hours. LCD contrast The favoured view for the LCD display is from below. The LCD contrast of the LCD display can be adapted by the user. The contrast setting is possible in the range from 0 to 7.
Software Release The internal software of the UMG96L will be improved and extended continuously. The software update is registered in the device by a specific number the so called software release. The software release cannot be changed by the user. PRG L1 L2 L3 Example: In UMG96L, the software release 1.23 is installed. User password A user password can be programmed in order to avoid an unintentional change of programming data.
Uncertainty of measurement Quantity Indicating range Measuring range1) tolerance allowance2) Meas. and auxiliary volt. 195..255V Voltage L-N Voltage L-L Current Current in N Real power, consumption, sum Real power, supply, sum Apparent power, sum Reactive power (Q0), sum 0 .. 34kV 0 .. 60kV 0,00 .. 9,99kA 0,00 .. 9,99kA 0,00W .. 150MW -0,00W .. -150MW 0,00VA .. 150MVA 0,00var .. 150Mvar 196 .. 255V 340 .. 442V 0,02 .. 6,00A 0,06 .. 18,00A 3,9W .. 3,825kW -3,9W .. -3,825kW 3,9VA .. 3,825kVA 3,9var ..
These specifications presuppose a yearly calibration and a warm up time of 10 minutes. Used abbreviations: rng = of measuring range rdg = of measured value 1) Measuring range with scale factor = 1, (Current tranformer = 5/5A, 1/1A) In the range of -10..18°C and 28..55°C, an additional error of +-0,5‰ of measured value has to be considered per K. 3) If the measured apparent power is in the range of 1% .. 100% of the measuring range, cos(phi) is indicated with an accuracy of +-3%.
Configuration data Description Current transf., primary Current transf., secondary Voltage transf., primary Type plate, 196 .. 255V Type plate, 90 .. 160V Type plate, 45 .. 80V Voltage transformer, sec. Type plate, 196.. 255V Type plate, 90 .. 160V Type plate, 45 .. 80V Averaging time, current Averaging time, power Measured value rotation Measured value selection LCD contrast Software Release User passwort Working hours counter Page 28 Display Setting range Presettings CT CT 1A ..
Declaration of conformity The UMG96L fulfills the protection guidelines of: Guideline 89/336/EWG in combination with DIN EN61326 (2002-03) as well as Guideline 73/23/EWG and 93/68/EWG in combination with EN 61010-1 (2002-08) Safety guidelines Safety requirements for electrical equipment for measurement, control, and laboratory use Part1: General requirements : EN61010-1:2001, IEC 61010-1:2001 Test voltage Enclosure against measuring inputs : 2kV AC Between the inputs for measuring and auxiliary voltage an
Technical data Weight Calorific value : 250g : 2,2MJ (610Wh) Ambient conditions Measurement category Pollution degree Protection class Ambient temperature Storage temperature Humidity Protection class Front Front with seal (Option) Back side Mounting position Operating height : : : : : : III (Measurement within building installation) 2 II = with protective earth -10°C .. +55°C -20°C ..
Dimensions Cut out: 92+0,8 x 92+0,8 mm 42 Made in Germany UMG96L 45-65Hz IP20 2,5VA 4 3 N L3 1 2 L2 L1 2-10A Spannungsmessung Voltage Measurement Type plate 90 Fixing angles 96 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 123 S V J M A D E P Panel max. 6 123 123 Strommessung/Current Measurement L1 L2 L3 k l k l k l 5 6 7 8 9 10 6 Diagr. Side view Diagr.
Brief instructions Change current transformer ratio Programming mode Shift to programming mode If you are in the indication mode please press the keys 1 and 2 simultaneously for approx. 1 second. Now you reach programming mode. The symbols for programming mode PRG and for the current transformer CT appear. Confirm selection with key 1. The first digit of the primary flashes. Change primary current: Change the flashing digit with key 2. Select the next digit to be changed by pressing key 1.
