janitza UMG 512 Operation Manual And Technical Data

Doc no. 2.054.009.0.p

Power Quality Analyser

UMG 512

Operation manual and technical data

Part no. 33.03.196 (UL)

Janitza electronics GmbH Vor dem Polstück 1 D-35633 Lahnau Support Tel. 0049 6441 9642-22 Fax 0049 6441 9642-30 E-mail: info@janitza.com Website: http://www.janitza.com

www.janitza.com

UMG 512

Operation 47

Meaning of the keys 47 Measured value display 48 "Home" measured value display 49 Selecting a measured value display 50 View additional information 51 Deleting min./max. values individually 52 Transients list 53 Event list 54

Conﬁguration 55

Connecting the supply voltage 55 Conﬁguration menu 56 Language 56 Communication 57 Measurement 59 Measuring transducer 60 Transients 64 Events 66 Relevant voltage 68 Nominal frequency 69 Flicker 70 Temperature 70 System 71 Password 72 Resetting 73 Display 76 Extensions 79

Commissioning the unit 81

Connecting the supply voltage 81 Connecting the measured voltage 81 Frequency measurement 82

Table of contents

General information 4 Inspection on receipt 7

Scope of delivery UMG 512 8 Available accessories 8

Product description 9

Proper use 9 UMG 512 features 10 Measuring process 11 Operating concept 11 GridVis network analysis software 11 Connection variants 12

Installation 13

Position of installation 13 Mounting position 13 Front panel section 13 Ethernet 14 Mounting 14

Installation 16

Ground wire connection 16 Supply voltage 16 Voltage measurement 18 Three-phase 3-conductor systems 18 Rated voltages 19 Frequency measurement 27

Current measurement 28

Residual current measurement inputs (RCM) 32 Temperature measurement input 35 RS485 interface 36 Proﬁbus interface 40 Ethernet interface 42 Digital outputs 43

UMG 512

Direction of the rotating ﬁeld 82 Applying the measuring-circuit voltage 83 Applying the residual current 85 Checking the power measurement 87 Checking the communication 87 Measurement range exceeded (overload) 88 RS485 interface 89 Proﬁbus 91 Digital in-/outputs 95

Service and maintenance 100

Service 100 Device calibration 100 Calibration intervals 100 Firmware update 101 Battery 101

Technical data 104

Function parameters 111 Dimension diagrams 116

Conﬁguration menu overview 118 Measured value displays overview 119 Connection example 124

UMG 512

Comments on the manual

We welcome your comments. If anything in this manual seems unclear, please let us know by sending an e-mail to: info@janitza.de

General information

This manual is subject to the statutory provisions of copyright law and may not be photocopied, reprinted, or reproduced - in whole or in part, by mechanical or electronic means - nor otherwise duplicated or republished, without the binding written permission of:

Janitza electronics GmbH, Vor dem Polstück 1, D 35633 Lahnau, Germany.

Trademarks

All trademarks and the resulting rights are the property of their respective owners.

Disclaimer

Janitza electronics GmbH accepts no responsibility for errors or deﬁciencies within this manual, and makes no commitment to keep the contents of this functional description up to date.

UMG 512

Dangerous voltage!

Risk to life or serious injury. Before commencing work on the system and the device, they must ﬁrst be de-energised.

Please note!

Please pay attention to the documentation. This symbol is intended to warn you of potential dangers, which could occur during installation, commissioning and use.

Note!

Ground wire connection.

Inductive.

The current lags behind the voltage.

Capacitive.

The voltage lags behind the current.

Meaning of symbols

This manual uses the following pictograms:

UMG 512

Instructions on use

Please read this operation manual as well as all other publications that must be consulted for working with this product (in particular, for the installation, operation or maintenance).

Observe all safety instructions and warnings. Failure to comply with the instructions can result in personal injuries and/or damage to the product.

Any unauthorised changes or use of this device, which go beyond the mechanical, electrical or otherwise stated operating limitations, can result in bodily injury or/and damage to the product.

Any such unauthorised change constitutes "misuse" and/or "negligence" according to the warranty for the product and thus excludes the warranty for covering possible damage resulting from this.

This device must only be operated and repaired by specialised personnel.

Specialised personnel are persons, that based on their respective training and experience, are qualiﬁed to recognise risks and prevent potential dangers that can be caused by the operation or maintenance of the device.

If the device is not operated according to the operation manual, protection is no longer ensured and hazards can be presented by the device.

Single core conductor must be provided with sleeves.

Only pluggable screw terminals with the same number of poles and the same type of construction are permitted to be connected together.

Additional legal and safety regulations required for the respective application are to be followed during the use of the device.

UMG 512

Concerning this operation manual

This operation manual is part of the product.

• Read the operation manual before using the device.

• Keep the operation manual instructions throughout the entire service life of the product and have them readily available for reference.

• Pass the operation manual on to each subsequent owner or user of the product.

Inspection on receipt

The prerequisites of faultless, safe operation of this device are proper transport and proper storage, set-up and installation, as well as careful operation and maintenance. If it can be assumed that risk-free operation is no longer possible, the device must be immediately put out of operation and secured against being put back into operation again. Packing and unpacking must be carried out with customary care without the use of force and only using suitable tools. The devices should be visually checked for ﬂawless mechanical condition.

It can be assumed that risk-free operation is no longer possible if the device, for example,

• has visible damage

• no longer works despite the mains power supply being intact

• has been exposed to prolonged adverse conditions (e.g. storage outside the permissible climate limits without being adapted to the room climate, condensation, etc.) or rough handling during transportation (e.g. falling from a height, even if there is no visible external damage, etc.)

• please check the delivered items for completeness before you start installing the device.

All screw-type terminals included in the scope of delivery are attached to the device.

All supplied options and versions are described on the delivery note.

UMG 512

Scope of delivery UMG 512

Number Part no. Name

1 52.17.xxx

UMG 512

1 33.03.196 Operation manual

1 51.00.116 CD with following content

- GridVis programming software

- GridVis functional description

- UMG 512, GSD ﬁle "JAN0EDC.GSD"

1 10.01.855 Screw-type terminal, pluggable, 2-pole (auxilliary power)

1 10.01.847 Screw-type terminal, pluggable, 5-pole (voltage measurement 1-4)

1 10.01.853 Screw-type terminal, pluggable, 8-pole (current measurement 1-4)

1 10.01.873 Screw-type terminal, pluggable, 6-pole (digital inputs/outputs)

1 10.01.888 Screw-type terminal, pluggable, 7-pole (RCM, thermistor input)

1 10.01.859 Screw-type terminal, pluggable, 3-pole (RS 485)

1 08.01.505 Patch cable 2 m, twisted, grey (connection UMG PC/switch)

1 52.19.301 Mounting clips

Available accessories

Part no. Name

21.01.102 Lithium battery CR2450, 3V (approval according to i.a.w. UL 1642)

13.10.539 Proﬁbus connector, 9-pole, D-SUB

13.10.543 Proﬁbus connector, 9-pole, D-SUB, angled

29.01.903 Seal, 144 x 144

For the item number, see delivery note

UMG 512

Product description

Proper use

The UMG 512 is intended for the measurement of voltage quality according to EN61000-4-30 in building installations, on distribution units, circuit breakers and busbar trunking systems.

Measured voltages and measured currents must derive from the same network.

The UMG 512 is suitable for integration into ﬁxed and weatherproof switch panels in indoor areas. Conductive switch panels must be earthed.

The UMG 512 can be used in 2, 3 and 4-conductor networks and in TN and TT networks.

The current measurement inputs 1–4 of the UMG 512 are connected via external ../1A or ../5A current transformers.

Measurements in medium and high-voltage networks are always performed via current and voltage transformers.

The measurement results can be displayed and read out and further processed via the interfaces (Ethernet, Modbus, Proﬁbus).

The UMG 512 can be used in industrial and domestic settings.

By continuously monitoring the residual currents (RCM) of an electrical system via the inputs I5 and I6, warning pulses can be triggered if a response threshold is exceeded. Using these, the system operator can be alarmed before a protective equipment reacts. The UMG 512 does not provide protection against electric shock!

The residual current monitoring is performed via the current measurement inputs I5 and I6 via an external residual current transformer with a rated current of 30 mA.

Residual current monitoring monitors residual currents via external current transformers and can trigger a warning impulse when a response threshold is exceeded. The device is thus not an independent protective device!

UMG 512

UMG 512 features

General information

• Front panel integration device with dimensions 144 x 144 mm

• Connection via pluggable screw terminals

• Colour graphic display 320x240, 256 colours

• Operation via 6 buttons

• 4 Voltage and 4 current measurement inputs

• 2 Residual current inputs with failure monitoring

• 1 Temperature measurement input

• 2 digital outputs and 2 digital inputs

• 16-bit A/D converter, memory 256 Mbyte Flash, SDRAM 32 Mbyte

• RS485 interface (Modbus RTU, slave, up to 115 kbps)

• Proﬁbus DP/V0

• Ethernet (web server, e-mail)

• Capturing more than 2000 measured values

• Clock and battery (with battery monitoring function)

• Working temperature range -10°C .. +55°C

Measurement

• Measurement in TN and TT networks

• Continuous sampling of the voltage and current measurement inputs at 25.6 kHz

• Frequency range of the fundamental oscillation 15Hz .. 440Hz

• Acquisition of transients >39 µs and storage of up to approx. 330,000 sampling points

• Metering range current 0.001 to 7Arms.

• True RMS (TRMS)

• Continuous sampling of the voltage and current measurement inputs

• Continuous monitoring of residual currents with failure monitoring

• Temperature measurement

• Measurement of the power quality in accordance with DIN EN61000-4-30, Class A

• Flicker measurement in accordance with DIN EN61000-4-15:2011, Class F1

• Working measurement, measurement uncertainty in accordance to DIN EN50470-3:

- Class C for ../5A converter,

- Class B for ../1A converter,

• Measurement of the harmonics 1st to 63rd in accordance with DIN EN61000-4-7 class 1, for

- Ull, Uln, I, P (cons./del.) and

- Q (ind./cap.),

• Measurement of the interharmonics 1st to 63rd

for (Uln, Ull, I) in accordance with DIN EN61000-4-7

cl.1

• Analysis and evaluation in accordance with DIN EN50160 with the GridVis programming software included in the scope of delivery

• Programming separate applications in Jasic

UMG 512

Measuring process

The UMG 512 measures continuously and calculates all effective values over a 200 ms interval. The device measures the real effective value (TRMS) of the voltages and currents connected to the measurement inputs.

Operating concept

You can program and call up the measured values via many routes using the UMG 512.

• Directly on the device via 6 buttons and the display

• Using the GridVis programming software.

• Using the device homepage

• Using the Modbus protocol. You can modify and call up the data using the Modbus address list. The list can be called up via the device's home page and can be found on the enclosed CD.

This operation manual only describes how to operate the UMG 512 using the six buttons. The GridVis programming software has its own "online help" system.

GridVis network analysis software

The UMG 512 can be programmed and read out using the GridVis network analysis software included in the scope of the delivery. For this, a PC must be connected to the UMG 512 via a serial interface (RS485/ Ethernet).

GridVis features

• Programming the UMG 512

• Conﬁguring recordings

• Analysing the read out data according to EN 61000-2-4.

• Reading out recordings

• Saving data to a database

• Graphical representation of measured values

• Programming customer-speciﬁc applications

UMG 512

Connection variants

Connection of a UMG 512 to a PC via an interface converter:

Connection of a UMG 96RM via a UMG 512 as a gateway

UMG 512

Direct connection of a UMG 512 to a PC via Ethernet.

Connection of a UMG 512 to a PC via Ethernet.

UMG 96RM

UMG 512

(twisted patch cable)

UMG 512

(twisted patch cable)

UMG 512

Switch

UMG 512

Installation

Position of installation

The UMG 512 is suitable for integration into ﬁxed and weatherproof switch panels in indoor areas. Conductive switch panels must be earthed.

Mounting position

To ensure adequate ventilation, the UMG 512 must be installed vertically. There should be separation above and below of at least 50mm with 20mm space to the sides.

Front panel section

Cut-out size: 138

+0.8

x 138

+0.8

mm.

Failure to meet the minimum clearances can destroy the UMG 512 at high ambient temperatures!

Fig. mounting position UMG 512 (View from rear)

UMG 512

Ethernet

The Ethernet connection of the UMG 512 is on the bottom of the housing. Depending on the bending radius of the Ethernet cable and connector type, you must install a connection area below the UMG 512.

The connection area below the UMG 512 should not be smaller than 50 mm.

Mounting

The UMG 512 is mounted in the switchboard with two mounting clips that are installed at the top and bottom of the device.

Ethernet connection

Patch cable

50 mm

UMG 512

Installation

Ground wire connection

Use a ring cable lug for connecting the protective conductor to the UMG 512.

Supply voltage

The UMG 512 needs supply voltage to operate. The type and amount of the supply voltage required is speciﬁed on the rating plate. The supply voltage is connected on the rear side of the device via terminal blocks.

Before connecting the supply voltage, ensure that the voltage and frequency correspond to the details on the rating plate!

The supply voltage must be connected through a UL/IEC approved fuse.

Caution: Risk to life!

The ground wire connection on the device must be connected with the system earthing.

Fig. connection example of the supply voltage to a UMG 512.

Circuit breaker

Fuse

L1 N PEL3L2

Protective conductor

Connection point of the

protective conductor

UMG 512

• If installed in a building, a disconnector or circuit breaker must be provided for the supply voltage.

• The disconnector must be installed near the device and easily accessible to the user.

• The switch must be marked as the circuit breaker for this device.

• Voltages which are over the permitted voltage range can destroy the device.

Please note!

The inputs for the supply voltage are hazardous if touched!

Please note!

Make sure to observe the speciﬁcations for the supply voltage that are provided on the rating plate of the UMG 512.

UMG 512

Voltage measurement

Three-phase 4-conductor systems

The UMG 512 can be used in three-phase 4-conductor systems (TN, TT networks) with an earthed neutral conductor. The bodies of the electrical system are earthed.

The voltage measurement in the UMG 512 is designed for the overvoltage category 600V CAT III (measurement voltage surge 6kV).

Three-phase 3-conductor systems

The UMG 512 is only suitable to a limited extent for use in IT networks, since the measured voltage relative to the housing potential is measured and the input impedance of the device creates residual current against the earth. The residual current can trigger the insulation monitoring in IT networks. The connection variants with voltage transformers are suitable for unlimited use in IT networks.

347V/600V 50/60Hz

240V 50/60Hz

System earthing

AC/DC

Auxilliary power

Voltage measurement

V3V2 Vref

UMG 512

Fig. Schematic diagram, UMG 512 in a TN network.

Fig. Schematic diagram, UMG 512 in an IT network without N.

600V 50/60Hz

AC/DC

Auxilliary power

Voltage measurement

V3V2

System earthing

Impedance

UMG 512

Vref

UMG 512

Maximum system rated voltage

Rated voltages

Lists of networks and their nominal network voltages in which the UMG 512 can be used.

Three-phase 4-conductor systems with earthed neutral conductor.

Maximum system rated voltage according to UL

L-N

/ U

L-L

66V / 115V 120V / 208V 127V / 220V 220V / 380V 230V / 400V 240V / 415V 260V / 440V 277V / 480V 347V / 600V 400V / 690V 417V / 720V

Maximum system rated voltage

Fig. Table for network rated voltages i.a.w. EN606641:2003 suitable for the voltage measurement inputs.

L-L

66V 115V 120V 127V 200V 220V 230V 240V 260V 277V 347V 380V 400V 415V 440V 480V 500V 577V 600V

Three-phase 3-conductor systems, ungrounded.

Fig. Table for network rated voltages i.a.w. EN606641:2003 suitable for the voltage measurement inputs.

UMG 512

Voltage measurement inputs

The UMG 512 has four voltage measurement inputs (V1, V2, V3, V4).

Voltage swell

The voltage measurement inputs are suitable for measurements in networks where overvoltages of overvoltage category 600V CATIII can occur.

For measurement with the supporting measurement (V4), a voltage must be connected to the baseline measurement for frequency determination.

If the baseline measurement (inputs V1-V3) is connected to a three-phase 3-conductor network, the supporting measurement (input V4) can no longer be used as a measurement input.

L1 N PEL3L2

Fig. Example connection for measuring voltage.

UMG 512

When connecting the voltage to be measured, the following must be observed:

• A suitable circuit breaker must be ﬁtted to disconnect and de-energise the UMG 512.

• The circuit breaker must be placed in the vicinity of the UMG 512, be marked for the user and easily accessible.

• Use a UL/IEC approved circuit breaker for the overcurrent protection and disconnector.

• The overcurrent protection must have a rated value, which is suitable for the short circuit current at the connection point.

• Measured voltages and measured currents must derive from the same network.

Please note!

Voltages that exceed the allow nominal network voltages must be connected via a voltage transformer.

Please note!

The UMG 512 is not suitable for measuring DC voltages.

Please note!

The voltage measurement inputs on the UMG 512 are dangerous if touched!

Please note!

The voltage measurement inputs may not be used for voltage measurement in SELV circuits (safe extra low voltage).

UMG 512

Fig. Measurement via 3 voltage transformers in a threephase 4-conductor network with asymmetric loading.

Baseline measurement, digital inputs 1-3

Fig. Measurement in a three-phase 4-conductor network with asymmetric loading.

Fig. Measurement via 2 voltage transformers in a threephase 4-conductor network with asymmetric loading.

Fig. Measurement in a three-phase 4-conductor network with symmetric loading.

L1 L2 L3

L1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

4w 3m

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

4w 2i

L1 L2 L3

L1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

4w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

4w 3m

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

4w 2i

L1 L2 L3

L1 L2 L3 N

4w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

4w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

4w 2u

L1 L2 L3

1 L2 L3 N

4w 3m

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

L1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

UMG 512

Fig. Measurement in a three-phase 4-conductor network with asymmetric loading.

Fig. Measurement via 2 voltage transformers in a threephase 3-conductor network with symmetric loading.

L1 L2 L3

L1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

4w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

L1 L2 L3 N

4w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

UMG 512

Fig. Measurement in a three-phase 3-conductor network with asymmetric loading.

L1 L2 L3

L1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

3w 2m

L1 L2 L3

L1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

3w 2m

2w 1m

L1 L2 L3

1 L2 L3 N

3w 3m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

3w 2m

L1 L2 L3

L1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2u

1 I2 I3

S1 S2 S1 S2 S1 S2

1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2i

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

3w 2m

L1 L2 L3

L1 L2 L3 N

3w 2u

I1 I2 I3

S1 S2 S1 S2 S1 S2

2w 2m

UMG 512

Fig. Measurement in single-phase 3-conductor network. I3 and U3 are not calculated and set to zero.

Fig. Measurement in a three-phase 3-conductor network with asymmetric loading.

Fig. Measurement of one phase in a three-phase 4-conductor network.

L1 L2 L3

L1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

L1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 1m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3

1 L2 L3 N

3w 2m

1 I2 I3

S1 S2 S1 S2 S1 S2

L1 L2 L3 N

2w 2m

I1 I2 I3

S1 S2 S1 S2 S1 S2

UMG 512

Supporting measurement, input V4

Fig. Measurement in a three-phase 4-conductor network with symmetric loading.

Fig. Measurement in a three-phase 3-conductor network with symmetric loading.

Fig. Measurement of the voltage between N and PE. Measurement of the current in the neutral conductor.

L1 L2 L3

L4 N

4w 1m

S1 S2

L1 L2 L3

4 N

3w 1m

S1 S2

L1 L2 L3

L4 N

3w 1m

S1 S2

L1 L2 L3

4 N

4w 1m

S1 S2

L1 L2 L3

4 N

3w 1m

S1 S2

L4 N

2w 1n

S1 S2

If the baseline measurement (inputs V1-V3) is connected to a three-phase 3-conductor network, the supporting measurement (input V4) can no longer be used as a measurement input.

For measurement with the supporting measurement (V4), a voltage must be connected to the baseline measurement for frequency determination.

UMG 512

Frequency measurement

The UMG 512 is suitable for measurements in networks in which the fundamental oscillation of the voltage is in the range 15Hz to 440Hz.

To automatically determine (wide range) the mains frequency, a voltage L1-N of greater than 10Veff must be applied to voltage measurement input V1.

The mains frequency is only measured on the measurement inputs of the baseline measurement (V1,V2,V3).

Measured voltages and measured currents must derive from the same network.

UMG 512

Current measurement

The UMG 512 is intended for the connection of current transformers with secondary currents of ../1A and ../5A. The factory default for the current transformer ratio is 5/5A and must be adapted to the current transformer employed if necessary.

Only AC currents can be measured - DC currents cannot.

Any of the current measurement inputs can be loaded with 120A for 1 second.

Fig. Current measurement (I1-I3) via current transformers (connection example)

L1 N PEL3L2

Load

Please note!

The measurement lines must be suitable for an operating temperature of at least 80°C!

The attached screw-type terminal must be ﬁxed using the two screws on the device!

Please note!

The UMG 512 is not suitable for measuring DC voltages.

Attention!

The current transformer must have basic insulation per IEC 61010 1:2010, as a minimum, for the nominal voltage of the circuit to be measured.

UMG 512

Earthing of current transformers!

A secondary connection for each current transformer must be connected to ground.

Current direction

The current direction can be individually corrected via the existing serial interfaces or on the device for each phase.

If incorrectly connected, a subsequent re-connection of the current transformer is not required.

Open-circuit current transformers!

High voltage spikes that are dangerous to touch can occur on current transformers that are driven with open-circuit secondary windings! With "safe open-circuit current transformers" the winding insulation is rated such that the current transformer can be driven open. However, even these current transformers are dangerous to touch when they are driven open-circuit.

Current transformer connections!

The secondary connection of the current transformer must be short circuited on this before the current feed to the UMG 512 is disconnected! If a test switch, which automatically shortcircuits the secondary wires of the current transformer, is available then it is sufﬁcient to set this to the "Test" position insofar as the short-circuiting device has been checked beforehand.

Please note!

Residual current monitoring is performed using the terminals I5 and I6. There is no directional sensitivity of the residual currents of the network or load sides (not directionally sensitive).

UMG 512

Total current measurement

If the current measurement is done via two current transformers, the overall transformation ratio of the current transformers must be programmed into the UMG 512.

Fig. Example, current measurement via a total current transformer

UMG

Einspeisung 1 Supply 1

Einspeisung 2

Supply 2

1P1

1P2

(K)

(L)

(k) (l)

1S1

1S1 1S2 2S1 2S2

2S1

2S2

(k)

(l)

(K) (L)

2P2

Verbraucher A Consumer A

Verbraucher B

Consumer B

Example: The current is measured via two current transformers. Both current transformers have a transformation ratio of 1000/5A. The summation measurement is performed using a total current transformer 5+5/5A.

The UMG 512 must then be setup as follows:

Primary current: 1000A + 1000A = 2000A Secondary current: 5A

UMG 512

Ammeter

If you wish to measure the current not just using the UMG 512, rather also with an ammeter, the ammeter must be connected to the UMG 512 in series.

UMG

Einspeisung Supply

Verbraucher

Consumer

(k)S

1 S2(l)

2(L)(K)P1

UMG 512

Residual current measurement inputs (RCM)

The UMG 512 is suitable for use as a residual current monitoring device (RCM) as well as for monitoring AC, pulsing DC, and DC.

The UMG 512 can measure type A residual currents in accordance with IEC/TR 60755 (2008-01)

The connection of suitable external residual current transformers with a rated current of 30 mA is performed via the residual current transformer inputs I5 (terminals 4/5) and I6 (terminals 6/7).

Residual current transformer ratio

The GridVis software included in the scope of the delivery can be used to individually program the residual current transformer inputs' transformer ratios.

Fig. Connection example of residual current monitoring via current transformers

L2 L3N L1

Load

It is not necessary to conﬁgure a connection schematic for measurement inputs I5 and I6.

UMG 512

Please note!

Operating equipment connected to the analogue inputs (residual current and temperature measurement) must feature reinforced or double insulation to the mains supply circuits!

Example - temperature sensor:

A temperature sensor in close proximity to non-isolated mains cables should measure within a 300V CAT III network. Remedy: The temperature sensor must be equipped with reinforced or double insulation for 300V CAT III.

Example - residual current transformer:

A residual current transformer should measure on isolated mains cables within a 300V CAT III network. Remedy: The insulation of the mains cables and the insulation of the residual current transformer must fulﬁl the basic insulation requirements for 300V CAT III.

Failure monitoring

The UMG 512 monitors the ohmic resistance at the residual current measurement inputs.

If the ohmic resistance is greater than 300 Ohm, there is a failure (e.g. cable breakage) with the residual current monitoring.

UMG 512

L1 L2 L3 N I1 I2 I3

PEN

UMG 512

Fig. Example UMG 512 with residual current monitoring via measuring inputs I5/I6.

Residual current transformers

Residual current transformer

UMG 512

Temperature measurement input

The UMG 512 has one temperature measurement input. The temperature is measured here via terminals 8 through 10.

Do not exceed the total resistance load (sensor + cable) of 4kOhm.

PT100

GND

VCC

UMG 512

Fig. Example, temperature measurement with a Pt100

Use a shielded cable to connect the temperature sensor.

PT100

Please note!

Temperature and residual current measurement (RCM) are not galvanically separated from each other.

UMG 512

RS485 interface

In the UMG 512, the RS485 interface is designed as a 3-pin plug contact, which communicates via the Modbus RTU protocol.

A B

RS485 Bus

Correct

Incorrect

Termination resistors

The cable is terminated with resistors (120Ohm, 1/4W) at the beginning and at the end of a segment.

Termination within the device is possible via the S1 DIP switch of the UMG 512.

Terminal strip in the cabinet.

Device with RS485 interface. (without termination resistor)

Device with RS485 interface. (with termination resistor on the device)

UMG 512

OFF

Fig.: Placement in the middle of the segment; termination via S1 DIP switch deactivated (OFF)

OFF

Fig.: Placement at the end of the segment; termination via S1 DIP switch activated (ON)

Screening

Twisted screened cable should be used for connections via the RS485 interface.

• Earth the screens of all cables that lead to the cabinet and at the cabinet entry.

• Connect the screens over a generous area and in a manner that will conduct well, to a low-noise earth.

• Gather the cables mechanically above the earthing clamp in order to avoid damage due to cable movements.

• Use suitable cable glands to feed the cables into the cabinet, for example, armoured conduit couplings.

UMG 512

Cable type

The cable used must be suitable for an environmental temperature of at least 80°C.

Recommended cable types: Unitronic Li2YCY(TP) 2x2x0.22 (from Lapp Kabel) Unitronic BUS L2/FIP 1x2x0.64 (from Lapp Kabel)

Maximum cable length

1200m at a baud rate of 38.4k.

Fig. Screening procedure at cabinet entry.

Cable

Strain relief

Screen braid of the cable

Earthing clamp

Noiseless ground

CAT cables are not suitable for bus wiring. Use the recommended cable types for this.

If the bus line is laid in the switch cabinet, the screen must be connected to functional earth (PE).

When laying bus lines in the switch cabinet it is normally sufﬁcient if the screen of the bus line is connected at least once to the functional earth (PE).

If there are more signiﬁcant sources of interference, such as a frequency converter, installed in the switch cabinet, the screen must be connected to the functional earth (PE) as close as possible to the device.

UMG 512

Bus structure

• All devices are connected in a bus structure (line) and each device has its own address within the bus (see also Parameter programming).

• Up to 32 subscribers can be connected together in a single segment.

• The cable is terminated with resistors (bus termination 120Ohm, 1/4W) at the beginning and at the end of a segment.

• With more than 32 subscribers, repeaters (ampliﬁers) must be used to connect the individual segments.

• Devices for which the bus connection is switched on must be under current.

• It is recommended that the master be placed at the end of a segment.

• If the master is replaced with a bus connection, the bus must be switched off.

• Replacing a slave with a bus connection that is either switched on or de-energised can destabilise the bus.

• Devices that are not connected to the bus can be replaced without destabilising the bus.

Fig. Bus structure

SlaveSlaveSlave

Slave Slave Slave Repeater

Slave Slave Slave Slave

Master

Speisung notwendig / power supply necessary

Busabschluß eingeschaltet / bus terminator on

UMG 512

Proﬁbus interface

This 9-pole D-sub receptacle RS485 interface supports the Proﬁbus DP V0 slave protocol.

For the simple connection of inbound and outbound bus wiring, it should be connected to the UMG 512 via a Proﬁbus connector.

For the connection, we recommend a 9-pole Proﬁbus connector, e.g. type "SUBCON-Plus-ProﬁB/AX/SC" from Phoenix, item number 2744380. (Janitza item no:

13.10.539)

When using the device in a Profibus system, the device address must be set using the conﬁguration menu.

D-sub

receptacle for

Proﬁbus

Fig. UMG 512 with D-sub receptacle for Proﬁbus (View from rear).

UMG 512

Profibus

Profibus connector (external)

Terminating resistors

Screw-type terminals

Other profibus stations

D-Sub, 9 pin, connector

D-Sub, 9 pin, socket

Fig. Proﬁbus connector with termination resistors.

UMG 512

Connection of the bus wiring

The inbound bus wiring is connected to terminals 1A and 1B of the Proﬁbus connector. The continuing bus wiring for the next device in line should be connected to terminals 2A and 2B.

If there are no subsequent devices in the line, then the bus wiring must be terminated with a resistor (switch to ON).

With the switch set to ON, terminals 2A and 2B are switched off for further continuing bus wiring.

Transfer speeds in Kbit/s

Max. segment length

9.6, 19.2, 45.45, 93.75 1200m

187.5 1000m

500 400m

1500 200m

3000, 6000, 12000 100m

Table Segment lengths per Proﬁbus speciﬁcation.

UMG 512

Ethernet interface

The Ethernet network settings should be speciﬁed by the network administrator and set on the UMG 512 accordingly.

If the network settings are not known, the UMG 512 may not be integrated into the network through the patch cable.

Please note!

Connection of the UMG 512 to the Ethernet may only be carried out after consulting the network administrator!

PC / switch

Please note!

The UMG 512 is factory-set for the dynamic IP address assignment (DHCP mode). Settings can be changed as described in "TCP/IP Configuration" or, for example, via an appropriate Ethernet connection by means of GridVis software.

Ethernet connection

Patch cable

UMG 512

Digital outputs

The UMG 512 has two digital outputs. These outputs are galvanically separated from the analysis electronics using optocouplers. The digital outputs have a joint reference.

• The digital outputs can switch DC loads.

• The digital outputs are not short-circuit proof.

• Connected cables that are longer than 30m must be shielded when laid.

• An external auxilliary voltage is required.

• The digital outputs can be used as impulse outputs.

Fig. Connection of digital outputs

UMG 512

External

auxilliary voltage

24V DC

Digital Ouput 1

Digital Ouput 2

When using the digital outputs as pulse outputs, the auxilliary voltage (DC) must have a max. residual ripple of 5%.

Functions for the digital outputs can be adjusted clearly in the GridVis software provided in the scope of delivery. A connection between the UMG 512 and the PC via an interface is required to use the GridVis software.

Please note!

Digital outputs are not short-circuit proof!

Fig. Example for two relays connected to the digital outputs

UMG 512

Wiring longer than 30m must be screened.

Note the correct polarity of the supply voltage!

Digital inputs

The UMG 512 has two digital inputs. An input signal is detected on a digital input if a voltage of at least 18V and maximum 28V DC (typically at 4mA) is applied. There is no input signal for a voltage of 0 to 5V and a current less than 0.5 mA.

Fig. Connection of digital outputs

24V DC

External

auxilliary voltage

2k21

Digital

Input 1

Digital

Input 2

UMG 512

Digital inputs 1-2

Fig. Example for the connection of external switch contacts S1 and S2 to digital inputs 1 and 2.

UMG 512

S0 pulse input

You can connect an S0 pulse transducer per DIN EN62053-31 to any digital input.

This requires an external auxilliary voltage with an output voltage in the range 18 .. 28V DC and a resistor of 1.5kOhm.

2k21

Digital

Input 1

Digital

Input 2

UMG 512

Digital inputs 1-2

24V DC

External

auxilliary voltage

S0 pulse

transducer

1.5k

UMG 512

Operation

The UMG 512 is operated by six function keys.

Depending on the context, the six keys are assigned with different functions:

• Selecting measured value displays.

• Navigation within the menus.

• Editing device settings.

Labelling of the function keys

Display title

Measured values

Function keys

Meaning of the keys

Key Function

• Returns to the ﬁrst screen (home)

• Exits selection menu

• Selects number

• Selects main values (U, I, P ...)

• Changes (number -1)

• By-values (select)

• Selects menu item

• Changes (number +1)

• By-values (select)

• Selects menu item

• Selects number

• Selects main values (U, I, P ...)

• Opens selection menu

• Conﬁrm selection

UMG 512

Measured value display

Main values

Using the 2 and 5 keys, you can scroll between the main values of the measured value displays (see page 120-123).

By-values

Using the 3 and 4 keys, you can select the by-values of a measured value display (see page 120-123).

Display

Voltage L-L

Display

Communication

Status

Display

Home

Display

Bar graph

Voltage

Display

Voltage L-N

...

Display

Bar graph

Current

Display

Bar graph

Effective power

Main values

By-values

UMG 512

"Home" measured value display

After the power returns, the UMG 512 starts with the "Home" measured value display.

This measured value display contains the device names and an overview of important measured values. In it delivery condition, the unit name consists of the device type and the serial number of the device.

Using the "Home - key 1", you navigate directly to the ﬁrst "Home" measured value display from the measured value displays for the main values.

UMG 512

Selecting a measured value display

You would like to switch to a measured value display with main values.

• Using the 2 and 5 function keys, you can scroll

between the measured value displays of the main values.

• Using the 1 (home) function key, you always navigate

to the ﬁrst measured value display.

You would like to switch to a measured value display with by-values.

• Select the measured value display with the main

values.

• Using the 3 and 4 function keys, select the measured

value display for the by-values.

Example: Selecting the voltage by-values.

Display

Home

Display

Voltage L-L

Display

Voltage L-N

... ...

UMG 512

View additional information

• Using the 2 and 5 keys, scroll to the desired measured

value display.

• Activate the measured value selection using the 6 key

(select).

• The background colours for the measured value

switches from grey to green. The additional information is displayed in blue window.

• Using the 2 and 5 keys, select the desired measured

value.

• End the procedure using the 1 key (ESC) or select

another measured value with the 2 to 5 keys.

UMG 512

Deleting min./max. values individually

• Using the 2 and 5 keys, scroll to the desired measured

value display.

• Activate the measured value selection using the 6 key

(select).

• The background colours for the measured value

switches from grey to green. The additional information is displayed in blue window.

• Using the 2 and 5 keys, select the desired minimum

or maximum value.

• The time along with the date and time of the occurrence

are displayed as additional information.

• Using the 6 key (reset), you can delete the selected

minimum or maximum value.

• End the procedure using the 1 key (ESC) or select

another minimum or maximum value with the 2 to 5 keys.

The date and time for the minimum/maximum values are speciﬁed displayed in UTC time (Coordinated Universal Time).

UMG 512

Transients list

The detected transients are listed in the transients list.

• The transients list consists of 2 pages.

• On page 1, the transients 1 through 8 are listed and on page 2, the transients 9 through 16 are listed.

Displaying transients

• Using the 2 and 5 keys, scroll to the "Transient" main value display.

• Select the desired page using the 4 key.

• Navigate to the transients list using key 6 (select) and select a transient using the 3 or 4 keys.

• Using the 6 key (select), have a transient displayed in a graph.

• Show or hide the legend using the 6 key (select).

• You can exit the transient graph display using the 1 key (ESC).

Transient voltages are fast impulse transient effects in electrical networks. The time when transient voltages occur cannot be predicted and they have a limited duration. Transient voltages are caused by lightning strikes, switching operations or by tripped fuses.

UMG 512

Event list

Detected events are listed in the event list.

• The event list consists of 2 pages.

• On page 1, the events 1 through 8 are listed and on page 2, the events 9 through 16 are listed.

Displaying events

• Using the 2 and 5 keys, scroll to the "Event" main value display.

• Select the desired page using the 4 key.

• Navigate to the event list using key 6 (select) and select an event using the 3 or 4 keys.

• Using the 6 key (select), have an event displayed in a graph.

• Show or hide the legend using the 6 key (select).

• You can exit the result graph display using the 1 key (ESC).

Events are threshold value violations of effective current and voltage values.

UMG 512

Conﬁguration

The supply voltage must be connected for the conﬁguration of the UMG 512.

Connecting the supply voltage

• The supply voltage level for the UMG 512 is speciﬁed on the rating plate.

• After applying the supply voltage, a start-up display appears. Approximately ten seconds later, the UMG 512 switches to the ﬁrst "Home" measured value display.

• If no display appears, check whether the applied supply voltage is within the rated voltage range.

Please note!

If the supply voltage does not correspond to the voltage indicated on the rating plate, this may lead to malfunctions and severe damage to the device.

Fig. Example of the "Home" measured value display

UMG 512

Conﬁguration menu

After the power returns, the device starts on the "Home" measured value display.

• Open the Conﬁguration menu using the 1 button.

If you are in a measured value display for main values, you can navigate directly to the "Home" measured value display using the 1 button (home). Pressing the 1 key again opens the Conﬁguration menu. Using the 3 or 4 keys, you select the desired submenu that can be activated using the 6 key (enter).

Language

You can set the language for the measured value displays and menus directly in the "Conﬁguration" menu.

There are different languages available for selection. The factory default setting for the language is "English".

If the language ﬁeld is marked green, then the desired language can be selected by pressing the key 6 (enter) and the keys 3 or 4. Pressing the key 6 (enter) again conﬁrms the selection and changes the language.

UMG 512

Communication

The UMG 512 has an Ethernet and a RS485 interface.

Ethernet (TCP/IP)

Select the type of the address assignment for the Ethernet interface here.

DHCP mode

• Off - The IP address, netmask and gateway are

deﬁned by the user and set directly on the UMG 512. Select this mode for straightforward networks without DHCP servers.

• BOOTP - BootP enables the fully automatic integration of a UMG 512 into an existing network. However, BootP is an older protocol and does not provide the scope of functions provided by DHCP.

• DHCP - When started, the UMG 512 automatically obtains the IP address, the network mask and the gateway from a DHCP server.

Factory default setting: DHCP

Connection of the UMG 512 to the Ethernet may only be carried out after consulting the network administrator!

UMG 512

RS485

You can specify the protocol, device address and baud rate for operation with the RS485 interface. The device address must be uniquely assigned within the bus structure; the baud rate speciﬁcation must be selected uniformly.

The corresponding ﬁeld can be selected via the keys 3 or 4 (green marking). Key 6 (enter) provides you with access the selection options, which can then be selected with key 3 or 4. Pressing the 6 key (enter) again conﬁrms the selection.

Protocol

Selection options:

• Modbus slave

• Modbus master/gateway (default setting)

• Proﬁbus DP V0 (option)

Device address

Setting range: 0 - 255 Factory default setting: 1

Baud rate

Setting range: 9600, 19200, 38400, 57600, 115200 (default setting), 921600 kbps

UMG 512

The UMG 512 has 4 measurement channels used to measure the current (I1..I4) and 4 measurement channels used to measure the voltage (V1..V4 against Vref). Measured voltage and measured current for the measurement channels 1-4 must derive from the same network.

Baseline measurement

The baseline measurement uses the measurement channels 1-3. Use the measurement channels 1-3 in three-phase systems.

Supporting measurement

The supporting measurement only uses measurement channel 4. Use measurement channel 4 when measuring in single-phase systems or in three-phase systems with symmetrical loads. The frequency setting and the setting for the relevant voltage are pulled automatically from the baseline measurement settings.

Measurement

Conﬁgure the following here:

• The measuring transducer for the current and voltage measurement

• Recording transients

• Recording events

• The relevant voltage

• The mains frequency

• The ﬂicker settings

UMG 512

Measuring transducer

Current transformer

You can assign current transformer ratios to the baseline measurement and the supporting measurement. Select the 5/5A setting when measuring currents directly.

Setting range: Primary 1 to 1000000 Secondary 1 to 5

Factory default setting: Primary 5 Secondary 5

Rated current

The rated current deﬁnes the value to which

• Overcurrent

• Current transients

• K-factor and the

• Automatic scaling of graphics

refer.

Setting range: 0 to 1000000A

UMG 512

Residual current transformer

When using residual current inputs I5 and I6, the corresponding transformer ratios of the used residual current transformer must be set.

Setting range: Primary 1 to 1000000 Secondary 1

Factory default setting: Primary 127 Secondary 1

Monitoring

Activates or deactivates the failure monitoring of the corresponding residual current inputs.

• Activated - Switches on the failure monitoring for residual current monitoring.

• Deactivated - Switches off the failure monitoring for residual current monitoring.

UMG 512

Voltage transformer

You can assign voltage transformer ratios to the baseline measurement and the supporting measurement. Select the 400/400V setting when measuring without a voltage transformer.

Setting range: Primary 1 to 1000000 Secondary 1 to 999

Factory default setting: Primary 400 Secondary 400

Rated voltage

The rated voltage corresponding to the "arranged input voltage U

din

" according to EN 61000-4-30. The rated

voltage deﬁnes the value to which

• Upward deviation (EN 61000-4-30),

• Downward deviation (EN 61000-4-30),

• Transients,

• Events and the

• Automatic scaling of graphics

refer.

Setting range: 0 to 1000000V Factory default setting: 230V

UMG 512

Connection

You can select between different connection schemes (see page 22) for the voltage and current measurement using the "Connection" selection.

Factory default setting: 4w3m

Fig. Example for the measurement in a threephase 4-conductor network with asymmetric loading

Accepting AUX / MAIN

The measuring transducer can be conﬁgured for the baseline measurement and supporting measurement. You can accept the measuring transducer settings in each case from the supporting or baseline measurement.

• No - The settings from the supporting and baseline

measurement are not accepted.

• Yes - The settings from the supporting measurement

and baseline measurement are accepted.

UMG 512

Transients

• The UMG 512 detects transients that are longer than 39µs.

• The UMG 512 monitors the measurement inputs for transients.

• There are two independent criteria by which transients are detected.

• If a transient has been detected, the wave form will be saved to a transient record.

• If a transient has been detected, the threshold value increases by 20V, both in automatic and in manual mode. This automatic increase of the threshold value switches off within 10 minutes.

• If a further transient is detected within the next 60 seconds, it will be recorded with 512 points.

• The GridVis event browser can display recorded transients.

Mode (absolute)

If a sampled value exceeds the set threshold value, a transient is detected.

• Off - Transient monitoring has been switched off.

• Automatic - Factory default setting. The threshold

value is calculated automatically and is 110% of the current 200ms effective value.

• Manual - The transient monitoring uses the conﬁgurable threshold values under "Peak".

UMG 512

Mode (delta)

If the difference between two neighbouring sampled points exceeds the set threshold value, a transient is detected.

• Off - Transient monitoring has been switched off.

• Automatic - Factory default setting. The threshold

value is calculated automatically and is 0.2175 times the current 200ms effective value.

• Manual - The transient monitoring uses the conﬁgurable threshold values under "Trns U".

Mode (envelop)

If a sampled value exceeds the envelope range, a transient is detected.

• Off - Transient monitoring has been switched off.

• Automatic - Factory default setting. The envelop

is automatically calculated and is ±5% of the rated voltage.

• Manual - The transient monitoring uses the conﬁgurable envelop.

Accepting AUX / MAIN

The transient monitoring can be conﬁgured for the baseline measurement and supporting measurement. You can accept the settings from the supporting or baseline measurement.

• No - The settings from the supporting and baseline measurement are not accepted.

• Yes - The settings from the supporting measurement and baseline measurement are accepted.

UMG 512

Events

Events are threshold value violations of set threshold values for current and voltage.

Here, threshold values are compared with the half wave effective values for current and voltage from the measurement channels. The event record consists of a mean value, a minimum or maximum value, a start time and an end time.

Fig. Shows the half wave effective values for an event.

Limit value

Measured value

Half wave effective value

Start time event

(Trigger time)

End time

Event record

Event

Hysteresis

Pre-run

After-run

• An event describes a fault due to undervoltages/ overvoltages, voltage loss, overcurrent, overfrequency/ underfrequency and rapid frequency changes

• Monitoring of the threshold values can be switched off (Off/Manual).

• Threshold values and hysteresis must be set as a percentage of the nominal value.

• Threshold values can be set for excess voltage, undervoltage, voltage interruption and overcurrent.

• If an event has occurred, the corresponding measured value is recorded with the set pre-run and after-run periods (respectively 0..1000 half waves).

• Event records are conﬁgured with the GridVis and displayed with the event browser.

UMG 512

Voltage

Drop

A voltage drop is set in % of the rated voltage.

Voltage swell

The voltage swell is set in % of the rated voltage.

Current

Overcurrent

The rapid increase of current is set in % of the nominal current.

Accepting AUX / MAIN

The event monitoring can be conﬁgured for the baseline measurement and supporting measurement. You can accept the settings from the supporting or baseline measurement.

• No - The settings from the supporting and baseline measurement are not accepted.

• Yes - The settings from the supporting measurement and baseline measurement are accepted.

Lead time

You can only set the lead time with GridVis. Factory default setting: 0

After-run

You can only set the after-run with GridVis. Factory default setting: 0

UMG 512

Relevant voltage

Depending on the application, the voltage between the outer conductors (L) or the voltage between the outer conductor (L) and the neutral conductor (N) is relevant for analysing the power quality.

We recommend the "L-N" setting for measuring the power quality in low voltage networks. You should select the "L-L" setting in medium voltage networks.

Flicker values can only be determined if the relevant voltage L-N is given.

UMG 512

Nominal frequency

The UMG 512 determines the mains frequency from the voltage applied to L1 and uses this for the additional calculations.

The nominal frequency is required as a reference for measurement of the voltage quality.

Conﬁgure the nominal frequency for the mains on the UMG 512 prior to starting the measurement.

Select the mains frequency 50Hz or 60Hz for measuring the power quality in accordance with EN61000-4-30 and EN50160.

Setting range of the nominal frequency:

• 50Hz (factory default setting)

• 60Hz

• 15Hz to 440Hz (wide range)

Set the nominal frequency to "Wide range" for measurements in networks with other nominal frequencies e.g. 16 2/3Hz or 400Hz.

In order to determine the mains frequency, a voltage L1-N of greater than 10Veff must be applied to voltage measurement input V1.

UMG 512

Flicker

The UMG 512 requires the mains base values in order to provide voltage and frequency-independent measurement and calculation of the ﬂicker values (ﬂicker measurement as per DIN EN61000-4-15:2011). These values are to be speciﬁed by the user and can be selected from a predeﬁned list:

• 230V/50Hz (factory default setting)

• 120V/50Hz

• 230V/60Hz

• 120V/60Hz

Flicker values can only be determined if the relevant voltage L-N is given.

Temperature

When using a temperature measurement, the corresponding sensor type must be selected from a predeﬁned list.

• PT100

• PT1000

• KTY83

• KTY84

UMG 512

System

Display of the device-speciﬁc system settings with:

Firmware version

Serial number of the device

Fixed MAC address of the device

Set IP address

Set gateway address

Date and time

Set password

Reset settings

You cannot conﬁgure the date and time directly on the device. You can carry out the settings for the time synchronisation and date and time with the GridVis.

UMG 512

Password

The user can block access to the conﬁguration with a password. The conﬁguration can then only be changed directly on the device by entering the password.

The password consists of a 6-digit code.

Setting range: 1-999999 = With password 000000 = Without password

Password (000000) is not factory-programmed.

• To change a password that has already been set, you must know the current password.

• Note down the changed password.

• When selecting the "Password" (green marking), the password can be changed using the 6 key (enter) and keys 2 to 5. Pressing the 6 key again conﬁrms the entry.

• If you no longer want a password prompt, enter the password "000000".

Forgot my password

If you no longer remember your password, you can only delete it using the "GridVis" PC software. In order to do so, connect the UMG 512 to the PC with a suitable interface. More information can be found in the GridVis assistant.

UMG 512

Resetting

Clearing energy meters

You can clear all energy meters in the UMG 512 at the same time using the "Reset" key. Some speciﬁc energy meters cannot be selected.

• Highlight the "Clear energy" button (green marking) and enable the deletion process using the key 6 (enter).

• Select "Yes" with the 4 key.

• Conﬁrm the selection using the 6 key.

• The "Carried out" message appears in the line, all energy meters have been cleared.

UMG 512

Deleting min. and max. values

You can delete all min. and max. values in the UMG 512 at the same time using the "Reset" key.

The "Deleting minimum/maximum values individually" section describes how you can individually delete min. and max. values.

• Highlight the "Min/max values" item (green marking) and enable the clear process using the key 6 (enter).

• Select "Yes" with the 4 key.

• Conﬁrm the selection using the 6 key.

• The "Carried out" message appears in the line, all minimum and maximum values have been cleared.

Prior to commissioning potential production dependant contents of the energy counter, min/max values and records have to be deleted.

UMG 512

Delivery status

All settings, such as the conﬁguration and the recorded data, are restored to the factory default settings or deleted. Entered activation codes are not deleted.

• Select "Yes" with the 4 key.

• Conﬁrm using the 6 key.

• The "Carried out" message appears in the line, the delivery status is restored.

Re-initialisation

The UMG 512 is started again.

• Select "Yes" with the 4 key.

• Conﬁrm using the 6 key.

• The device starts again within approx. 10 seconds

UMG 512

Display

Brightness

The backlight brightness can be conﬁgured. The brightness set here is used when the UMG 512 is operated. Setting range: 0 to 100% Factory default setting: 70% (0% = dark, 100% = very bright)

Standby

Time after which the brightness switches to the "Standby brightness". Setting range: 60 to 9999 sec. Factory default setting: 900 sec.

Standby brightness

Brightness level the system switches to after the standby time expires. The standby time is restarted by using keys 1-6. Setting range: 0 to 60% Factory default setting: 40%

Screen Saver

The screen saver prevents a screen image that is not changed for a longer time period from "burning into" the LCD. Setting range: Yes, No Factory default setting: Yes

UMG 512

Screen Update

Here, you can deﬁne the speed at which the new measured values appear in the measured value displays. Setting range: fast (200ms), slow (1 sec.) Factory default setting: Fast

Rotate

The measured value displays are automatically shown one after the other. This does not affect the displays of the conﬁguration. Setting range: Yes, No Factory default setting: No

Rotation interval

Here, you can set the time after which the screen automatically switches to the next measured value display. Setting range: 0 to 255 seconds Factory default setting: 0 seconds

The service life of the backlight is extended if the brightness of the backlight is lower.

UMG 512

Colours

Selection of the colours for displaying the current and voltage in the graphic representations.

• Using the keys 3 or 4, select the desired coloured ﬁeld.

• Conﬁrm the selection using the 6 key.

• Using the keys 3 or 4, select the desired colour.

• Conﬁrm the selection using the 6 key.

UMG 512

Extensions

Under "Extensions", you can subsequently activate functions that are subject to purchase (activation) and display the status of the Jasic programs (Jasic status).

Activation

The UMG 512 contains functions that are subject to purchase and can be subsequently activated. List of the functions that can be activated:

• BACnet

You receive the activation codes from the manufacturer. The manufacturer requires the serial number of the device and the name of the function to be activated.

To activate the function, enter the 6-digit activation code in the corresponding line.

Make sure that the activation code is only valid for one device.

UMG 512

Jasic status

Up to 7 customer-speciﬁc Jasic programs (1-7) and a recording can run in the UMG 512.

The Jasic programs can have the following statuses:

• Stopped

• Running

You cannot change the status of the Jasic programs on the device.

UMG 512

Connecting the measured voltage

• Measurement of voltages in networks with over 500VAC to earth must be connected via voltage transformers.

• After connecting the measured voltages, the measured values displayed by the UMG 512 for the L-N and L-L voltages must correspond to those at the voltage measurement input.

• If a voltage transformer factor is programmed, it must be taken into consideration for the comparison.

Commissioning the unit

Connecting the supply voltage

• The supply voltage level for the UMG 512 is speciﬁed on the rating plate.

• After connecting the supply voltage, a display appears. Approximately 15 seconds later, the UMG 512 switches to the ﬁrst measured value display.

• If no display appears, check whether the power supply voltage is within the rated voltage range.

Please note!

If the supply voltage does not correspond to the voltage indicated on the rating plate, this may lead to malfunctions and severe damage to the device.

Please note!

The UMG 512 is only suitable for use in networks where overvoltages of overvoltage category 600V CATIII can occur.

Please note!

The UMG 512 is not suitable for measuring DC voltages.

Prior to commissioning potential production dependant contents of the energy counter, min/max values and records have to be deleted.

UMG 512

Frequency measurement

The UMG 512 requires the mains frequency for the measurement. The mains frequency can be deﬁned by the user or automatically determined by the device.

• For the UMG 512 to automatically determine the frequency, a voltage L1-N of greater than 10Veff must be applied to voltage measurement input V1.

• The mains frequency must be in the range from 15Hz to 440Hz.

• If there is no sufﬁciently high measured voltage available, the UMG 512 cannot determine the mains frequency and thus cannot perform any measurements.

Direction of the rotating ﬁeld

Check the direction of the rotating ﬁeld voltage in the measured value display of the UMG 512.

A “right” rotation ﬁeld usually exists.

Presentation of the phase sequence according to the direction of the rotating ﬁeld.

UL1-UL2-UL3 = right rotation ﬁeld UL1-UL3-UL2 = left rotation ﬁeld

UMG 512

Applying the measuring-circuit voltage

The UMG 512 is designed for the connection of .. /1A and .. /5A current transformers. Only AC currents can be measured via the current measurement inputs - DC currents cannot.

Short circuit all current transformer outputs except for one. Compare the currents displayed by the UMG 512 with the applied current.

Bearing in mind the current transformer conversion ratio, the current displayed by the UMG 512 must correspond with the input current. The UMG 512 must display approx. zero amperes in the short circuited current measurement inputs.

The current transformer ratio is factory-set to 5/5A and must be adapted to the current transformer used if necessary.

Phase shift angle sign preﬁx (U/I):

- Positive (+) for capacitive load

- Negative (-) for inductive load

In the Phasor diagram, the voltages are displayed with long pointers and the currents with short pointers.

Current

Voltage

Please note!

Voltages and currents that are outside the permissible measuring range can damage the device.

UMG 512

Voltage and current have

a deviation of about 180° in the phase position.

Phasor diagram, example 2

Predominantly ohmic load.

• The current measurement input is assigned to the correct voltage measurement input.

• In the current measurement considered here, the k and l connections are reversed or there is a return feed in the mains power supply.

Voltage and current only have

a minor deviation in the phase length.

Phasor diagram, example 1

Predominantly ohmic load.

• The current measurement input is assigned to the correct voltage measurement input.

UMG 512

Applying the residual current

Connect residual current transformer only to the I5 and I6 inputs with a rated current of 30mA! Both residual current inputs can measure AC currents, pulsing direct currents and DC currents.

Bearing in mind the current transformer ratio, the residual current displayed by the UMG 512 must correspond with the input current.

The current transformer ratio is factory-set to 5/5A and must be adapted to the residual current transformer used if necessary.

Failure monitoring (RCM) for I5, I6

The UMG 512 enables continuous monitoring of the connection to the residual current transformer on inputs I5 and I6.

Activation of failure monitoring is performed using the corresponding menu item or by setting address 13793 for the residual-current measurement input I5 and 13795 for I6.

If there is an interruption in the connection to the current transformer, this state is recorded in certain registers or indicated in the GridVis software.

It is not necessary to configure a connection schematic for residual current inputs I5 and I6.

The UMG 512 requires the mains frequency for residual current monitoring. For this purpose, the measured voltage should be applied or a ﬁxed frequency should be set.

Modbus addr. Value / Function

13793 (I5) 13795 (I6)

Failure monitoring for I5 / I6 0 = Deactivate monitoring 1 = Activate monitoring

Modbus addr. Value / Function

13805 (I5) 13806 (I6)

0 = Connection to the residual

current transformer on to I5 or I6

error-free 1 = Error in the current transformer connection to I5 or I6

UMG 512

Alarm status for I5, I6

Using bit-by-bit coding inside the alarm register (addr. 13921 for I5, 13922 for I6), it is possible to read out different alarm statuses:

Warning: The residual current has exceeded

the set warning limit value

Overcurrent: The measurement range has been

exceeded

Alarm: Alarm bit is set for: warning,

overcurrent or connection error to the transformer. The alarm bit must be reset or acknowledged manually.

Example: The measurement range has been exceeded. The alarm bit is also set and must be acknowledged!

Unused

Alarm

Overcurrent

Warning

Bit:

0150 0 0 0 0 0 0

14 1312 11 10 9 8

070 0 0 0 0 0 0

6 5 4 3 2 1 0

Unused

Alarm

Overcurrent

Warning

Bit:

0150 0 0 0 0 0 0

14 1312 11 10 9 8

070 0 0 0 1 1 0

6 5 4 3 2 1 0

UMG 512

Checking the power measurement

Short-circuit all current transformer outputs except for one and check the displayed power outputs. The UMG 512 may only display one power output in the phase with a non-short-circuited current transformer input. If this is not the case, check the connection of the measured voltage and the measuring-circuit current.

If the effective power amount is correct but the sign of the power output is negative,

• S1(k) and S2(l) could be inverted at the current transformer

• or they supply effective power back into the network.

Checking the communication

The UMG 512 counts all received (RX), all transmitted (TX) and all faulty data packages.

Ideally, the number of the error displayed in the Error column is zero.

Reset: You can reset the meters for the data package with the 6 key. The start time for the new counting process is reset.

In the Phasor diagram, the voltages are displayed with long pointers and the currents with short pointers.

UMG 512

Measurement range exceeded (overload)

If the measurement range is exceeded, it is displayed as long as this persists and cannot be acknowledged. The measurement range is exceeded if at least one of the four voltage or current measurement inputs lies outside their speciﬁed measuring range.

Threshold values for exceeding the measurement range (200 ms effective values):

I = 7 Arms UL-N = 600 Vrms

Indication of values exceeding the measurement range in voltage circuit L2 and in current path I4

UMG 512

RS485 interface

The MODBUS RTU protocol with CRC check on the RS485 interface can be used to access the data from the parameter and the measured value lists (see RS485 conﬁguration).

Modbus functions (master)

01 Read coil status 02 Read input status 03 Read holding registers 04 Read input registers 05 Force single coil 06 Preset single register 15 (0F Hex) Force multiple coils 16 (10Hex) Preset multiple registers 23 (17Hex) Read/write 4X registers

Modbus functions (slave)

03 Read holding registers 04 Read input registers 06 Preset single register 16 (10Hex) Preset multiple registers 23 (17Hex) Read/write 4X registers

The sequence of bytes is high before low byte (Motorola format).

Transmission parameters: Data bits: 8 Parity: None Stop bits (UMG 512): 2 External stop bits: 1 or 2

Number format: short 16 bit (-2

to 215 -1)

ﬂoat 32 bit (IEEE 754)

The message length must not exceed 256 bytes.

Broadcast (address 0) is not supported by the device.

UMG 512

Example: Reading the L1-N voltage The L1-N voltage is saved in the measured value list at address 19000. The L1-N voltage is available in the FLOAT format. Address = 01 is approved as the UMG 512 device address.

The Query Message appears as follows:

Name Hex Note Device address 01 UMG 512, address = 1 Function 03 „Read Holding Reg.“ Start Addr. Hi 4A 19000dez = 4A38hex Start Addr. Lo 38 Ind. Value Hi 00 2dez = 0002hex Ind. Value Lo 02 Error Check -

The "Response" of the UMG 512 can appear as follows:

Name Hex Note Device address 01 UMG 512, address = 1 Function 03 Byte meter 06 Data 00 00hex = 00dez Data E6 E6hex = 230dez Error Check (CRC) -

The L1-N voltage read by address 19000 is 230V.

UMG 512

Device master ﬁle

The device master ﬁle, abbreviated as GSD ﬁle, describes the Proﬁbus characteristics of the UMG 512. The GSD ﬁle is required by the conﬁguration program of the PLC.

The device master ﬁle for the UMG 512 has the ﬁle name "JAN0EDC.GSD" and is included on the data carrier as part of the scope of the delivery.

Variable deﬁnition

All system variables and global variables1) can be individually scaled and converted into one of the following formats:

• 8, 16, 32 bit integer with and without sign preﬁx.

• 32 or 64 bit ﬂoat format.

• Big or little endian.

•

Big endian = High byte before low byte.

•

Little endian = Low byte before high byte.

Global variables are variables that are deﬁned

by the user in Jasic and are available to each interface in the UMG 512.

Proﬁbus

Proﬁbus proﬁles

A Proﬁbus proﬁle contains the data to be exchanged between a UMG and a PLC. Four Proﬁbus proﬁles are preconﬁgured at the factory.

A Proﬁbus proﬁle can:

• Retrieve measured values from the UMG,

• Set the digital outputs in the UMG,

• Query the status of the digital inputs in the UMG.

Each Proﬁbus proﬁle can hold a maximum of 127 bytes of data. If more data has to be transferred, simply create additional Proﬁbus proﬁles.

• Every Proﬁbus proﬁle has a proﬁle number. The proﬁle number is sent by the PLC to the UMG.

• Using GridVis, 16 Proﬁbus proﬁles (proﬁle numbers

0..15) can be edited.

• Additional Proﬁbus proﬁles (proﬁle numbers

16..255) can be created using Jasic programs.

• Factory pre-conﬁgured Proﬁbus proﬁles cannot be subsequently changed.

UMG 512

Example

Using Proﬁbus to retrieve measured values

At least one Proﬁbus proﬁle must be set up with GridVis software and transferred to the UMG 512. A Jasic program is not required.

Fig. Block diagram for data exchange between PLC and UMG 512.

PLC

PLC process output box

1st Byte = Proﬁle number (0 to 15)

2nd Byte = Data to the UMG 512

•

PLC process input box

1st Byte = Return signal from the proﬁle

number

2nd Byte = Requested by UMG 512 Data

•

UMG 512

Fetch measured values for this proﬁle number.

Proﬁle number

Proﬁle number Measured values

Proﬁbus

UMG 512

Proﬁbus proﬁle number 0

Byte index

Value type Value

format

Scaling

1 1 Voltage L1-N Float 1 2 5 Voltage L2-N Float 1 3 9 Voltage L3-N Float 1 4 13 Voltage L4-N Float 1 5 17 Voltage L2-L1 Float 1 6 21 Voltage L3-L2 Float 1 7 25 Voltage L1-L3 Float 1 8 29 Current L1 Float 1

9 33 Current L2 Float 1 10 37 Current L3 Float 1 11 41 Current L4 Float 1 12 45 Effective power L1 Float 1 13 49 Effective power L2 Float 1 14 53 Effective power L3 Float 1 15 57 Effective power L4 Float 1 16 61 Cos phi (math.) L1 Float 1 17 65 Cos phi (math.) L2 Float 1 18 69 Cos phi (math.) L3 Float 1 19 73 Cos phi (math.) L4 Float 1 20 77 Frequency Float 1 21 81 Effective power sum L1-L4 Float 1 22 85 Reactive power sum L1-L4 Float 1 23 89 Apparent power sum L1-L4 Float 1 24 93 Cos phi (math.) sum L1-L4 Float 1 25 97 Effective current sum L1-L4 Float 1 26 101 Active energy sum L1-L4 Float 1 27 105 Ind. Reactive energy sum L1-L4 Float 1 28 109 THD voltage L1 Float 1 29 113 THD voltage L2 Float 1 30 117 THD voltage L3 Float 1

Factory pre-conﬁgured proﬁles

Proﬁbus proﬁle number 1

Byte index

Value type Value

format

Scaling

1 1 Voltage L1-N Float 1 2 5 Voltage L2-N Float 1 3 9 Voltage L3-N Float 1 4 13 Voltage L2-L1 Float 1 5 17 Voltage L3-L2 Float 1 6 21 Voltage L1-L3 Float 1 7 25 Current L1 Float 1 8 29 Current L2 Float 1

9 33 Current L3 Float 1 10 37 Effective power L1 Float 1 11 41 Effective power L2 Float 1 12 45 Effective power L3 Float 1 13 49 Cos phi (math.) L1 Float 1 14 53 Cos phi (math.) L2 Float 1 15 57 Cos phi (math.) L3 Float 1 16 61 Frequency Float 1 17 65 Effective power sum L1-L3 Float 1 18 69 Reactive power sum L1-L3 Float 1 19 73 Apparent power sum L1-L3 Float 1 20 77 Cos phi (math.) sum L1-L3 Float 1 21 81 Effective current sum L1-L3 Float 1 22 85 Active energy sum L1-L3 Float 1 23 89 Ind. Reactive energy sum L1-L3 Float 1 24 93 THD voltage L1 Float 1 25 97 THD voltage L2 Float 1 26 101 THD voltage L3 Float 1 27 105 THD current L1 Float 1 28 109 THD current L2 Float 1 29 113 THD current L3 Float 1

UMG 512

Proﬁbus proﬁle number 2

Byte index

Value type Value

format

Scaling

1 1 Active energy sum L1-L3 Float 1 2 5 Rel. Active energy sum L1-L3 Float 1 3 9 Deliv. Active energy sum L1-L3 Float 1 4 13 Reactive energy sum L1-L3 Float 1 5 17 Ind. Reactive energy sum L1-L3 Float 1 6 21 Cap. reactive energy sum L1-L3 Float 1 7 25 Apparent energy sum L1-L3 Float 1 8 29 Active energy L1 Float 1

9 33 Active energy L2 Float 1 10 37 Active energy L3 Float 1 11 41 Inductive reactive energy L1 Float 1 12 45 Inductive reactive energy L2 Float 1 13 49 Inductive reactive energy L3 Float 1

Proﬁbus proﬁle number 3

Byte index

Value type Value

format

Scaling

1 1 Effective power L1 Float 1 2 5 Effective power L2 Float 1 3 9 Effective power L3 Float 1 4 13 Effective power sum L1-L3 Float 1 5 17 Current L1 Float 1 6 21 Current L2 Float 1 7 25 Current L3 Float 1 8 29 Current sum L1-L3 Float 1

9 33 Active energy sum L1-L3 Float 1 10 37 Cos phi (math.) L1 Float 1 11 41 Cos phi (math.) L2 Float 1 12 45 Cos phi (math.) L3 Float 1 13 49 Cos phi (math.) sum L1-L3 Float 1 14 53 Reactive power L1 Float 1 15 57 Reactive power L2 Float 1 16 61 Reactive power L3 Float 1 17 65 Reactive power sum L1-L3 Float 1 18 69 Apparent power L1 Float 1 19 73 Apparent power L2 Float 1 20 77 Apparent power L3 Float 1 21 81 Apparent power sum L1-L3 Float 1

UMG 512

Digital in-/outputs

The UMG 512 has two digital outputs and two digital inputs. The inputs and outputs can be conﬁgured using the GridVis software (included in the scope of delivery).

The settings of the functions in the conﬁguration menu must be made using the GridVis software.

Fig.: GridVis software, conﬁguration menu

11 12 13

24V DC

K1 K2

S1 S2

Digital Outputs

14 15 16

Digital Inputs

Fig.: Digital inputs and outputs

UMG 512

Pulse output

The digital outputs can be used for the output of pulses for the computation of power consumption. For this purpose, a pulse of deﬁned length is applied on the output after reaching a certain, adjustable amount of power.

You need to make various adjustments in the conﬁguration menu using the GridVis software to use a digital output as a pulse out.

• Digital output,

• Measured value selection,

• Pulse length,

• Pulse value.

Fig.: GridVis software, conﬁguration menu

UMG 512

Pulse length

The pulse length applies to both pulse outputs and is set using the GridVis software.

The typical pulse length of S0 pulse is 30ms.

Pulse interval

The pulse interval is at least as large as the selected pulse length. The pulse interval depends on the measured power, for example, and can take hours or days.

Pulse length

10ms .. 10s

Pulse interval

>10ms

The values in the table are based on the minimum pulse length and the minimum pulse interval for the maximum number of pulses per hour.

Examples of the maximum possible number of pulses per hour.

Pulse length Pulse interval Max. pulse/h

10 ms 10 ms 180 000 pulses/h

30 ms 30 ms 60 000 pulses/h

50 ms 50 ms 36 000 pulses/h

100 ms 100 ms 18 000 pulses/h

500 ms 500 ms 3600 pulses/h

1 s 1 s 1800 pulses/h

10 s 10 s 180 pulses/h

Measured value selection

When programming with GridVis you have a selection of work values which are derived from the power output values.

Pulse interval

The pulse interval is proportional to the power output within the selected settings.

UMG 512

Pulse value

The pulse value is used to indicate how much power (Wh or varh) should correspond to a pulse. The pulse value is determined by the maximum connected load and the maximum number of pulses per hour.

If you check the pulse value with a positive sign, the pulses will only be emitted when the measured value has a positive sign.

If you check the pulse value with a negative sign, the pulses will only be produced when the measured value has a negative sign.

Since the reactive power meter operates with a backstop, pulses will only be generated with inductive load applied.

Since the effective power meter operates with a backstop, pulses will only be generated when drawing electricity.

Pulse value =

max. connected load

max. number of pulses/h

[Pulse/Wh]

UMG 512

Determine the pulse value

Set the pulse length Set the pulse length in accordance with the requirements of the connected pulse receiver. At a pulse length of 30 ms, for example, the UMG 512 generates a maximum number of 60,000 pulses (see Table "maximum number of pulses" per hour.

Determining the maximum connected load Example:

Current transformer = 150/5A Voltage L-N = max. 300 V

Power per phase = 150 A x 300 V = 45 kW Power at 3 phases = 45kW x 3 Max. connected load = 135kW

Calculating the pulse value

Fig.: Connection example for the circuit as pulse output.

+ -

230V AC

24V DC

External

supply voltage

1.5k

Data logger

UMG 512

Switch and pulse outputs

+24V=

Pulse value = 135kW / 60,000 Imp/h Pulse value = 0.00225 pulse/kWh Pulse value = 2.25 pulses/Wh

When using the digital outputs as pulse outputs, the auxilliary voltage (DC) must have a max. residual ripple of 5%.

Pulse value =

max. connected load

max. number of pulses/h

[Pulse/Wh]

100

UMG 512

Service and maintenance

The device underwent various safety checks before delivery and is marked with a seal. If a device is open, then the safety checks must be repeated. Warranty claims will only be accepted if the device is unopened.

Repair and calibration

Repair work and calibration can be carried out by the manufacturer only.

Front ﬁlm

The front ﬁlm can be cleaned with a soft cloth and standard household cleaning agent. Do not use acids and products containing acid for cleaning.

Disposal

The UMG 512 can be reused or recycled as electronic scrap in accordance with the legal provisions. The permanently installed lithium battery must be disposed of separately.

Service

Should questions arise, which are not described in this manual, please contact the manufacturer directly.

We will need the following information from you to answer any questions:

- Device name (see rating plate),

- Serial number (see rating plate),

- Software release (see measured value display),

- Measured voltage and power supply voltage,

- Precise description of the error.

Device calibration

The devices are calibrated by the manufacturer at the factory - it is not necessary to recalibrate the device providing that the environmental conditions are complied with.

Calibration intervals

We recommend having the device recalibrated by the manufacturer or an accredited laboratory every 5 years approximately.

janitza UMG 512 Operation Manual And Technical Data

Specifications and Main Features

Frequently Asked Questions

User Manual