Janitza UMG96L Manuel utilisateur

Peak value Minimum value

L1-N / L1-L2

L2-N / L2-L3

L3-N / L3-L1

Programming mode

Sum measurement

Phase to phase

Password

Voltage transformer

Current transformer

Key 1 Key 2

Mean value

Supply

Dok Nr. 1.031.015.7

Universal Measuring Device

UMG96L

Operating Instructions

Brief instructions see last page

Page 2

be reproduced or duplicated without the written

permission of the author. Any contraventions

are punishable and will be prosecuted with all

legal means.

No liability can be taken for the faultless condi-

tion of the manual or damage caused by the

use of it. As failures cannot be avoided com-

pletely, we shall be very grateful for any advice.

We are anxious to remove all failures as soon

as possible. The mentioned software and hard-

ware descriptions are registered trademarks in

the most cases and are subject to the regula-

tions by law.All registered trademarks are prop-

erty of the corresponding companies and are

fully recognized by us.

Issue Note

13.01.04 First Edition.

15.04.04 Measurement uncertainly.

27.03.06 Page 10/12 marking voltage

measurement.

11.01.07 Page 9, Abb.5, 6 and 8 been

cancelled.

12.04.07 Storage temperature -25°C.

Table of contents

The meaning of symbols 3

Hints for the user 3

Receipt control 3

Contents of delivery 3

Hints for maintenance 4

Service 4

Product description 5

Intended use 5

Functional description 5

Installation 6

Mounting place 6

Measuring and operating voltage 6

Current measurement 7

Sum current measurement 7

Connecting options 8

Putting into service 10

Installation 10

Attach measuring and operating voltage 10

Connect measuring current 11

Check phase assignment 11

Check current direction 11

Check measurement 11

Check phase power 11

Check sum power 11

Elimination of errors 12

Error messages 13

Usage and indication 14

Indication mode 14

Programming mode 14

Key functions 15

Table, measured value indication 16

Current transformer 18

Voltage transformer 19

Averaging times 20

Measured value indication 21

Measured value rotation time 21

Measured value selection 22

Delete minimum and maximum values 23

Delete energy 23

Working hours counter 24

LCD contrast 24

Software Release 25

User password 25

Uncertainty of measurement 26

Configuration data 28

Declaration of conformity 29

Safety guidelines 29

Test voltage 29

EMC requirements 29

Technical data 30

Ambient conditions 30

Measurement 30

Connectable cables 30

Dimensions 31

Connection example 31

Brief instructions 32

Change current transformer ratio 32

Call up measured values 32

Page 3



Beware of dangerous electrical voltage.

This symbol shall warn you about possi-

ble danger, which can occur during instal-

lation, putting into service and usage.

The meaning of symbols

The symbols, which are used in this manual,

have the following meaning:

Ꮨ

Hints for the user

This device may be inserted and used by quali-

fied personnel only according to the safety

regulations. Please follow the legal and safety

regulations for the corresponding application

while using the device.

Qualified personnel are persons, who are famil-

iar with installation, mounting, putting into serv-

ice and operation of the product and have quali-

fications according to their occupation, for ex-

ample:

- Education or instruction resp. the right to

switch on or off, ground or characterize current

circuits or devices according to the standards

of safety techniques.

- Education or instruction in care and use of

safety equipment according to the standard

safety techniques.

Attention!

If the device is not used according to this

manual, a safe use cannot be granted,

and the instrument might cause danger.

ᏘAttention!

If a UMG 96L is installed in panels of

metal, the panel must be earthed.

Receipt control

In order to ensure a perfect and safe use of the

device, a proper transport, expert storage, erec-

tion and mounting and careful usage and main-

tenance is required. In case that a safe opera-

tion can no longer be granted, the device has

to be put out of service and has to be protected

against unintentional putting into service.

A safe operation can no longer be assumed, if

the device

• shows visible damage,

• does not work in spite of intact net supply,

• has been exposed to disadvantageous condi-

tions for a longer time (e.g. storage beyond al-

lowed climate without adaption to the room cli-

mate, dew etc.) or transport use (e.g. falling

from great height, even without visible dam-

age).

Please test the contents of delivery for comple-

tion, before starting the installation of the de-

vice.

Contents of delivery

1 pc. UMG96L,

2 pcs. fixing brackets,

1 pc. manual.

As an option, a seal with part no. 29.01.907 can

be delivered.

All delivered options and versions are listed on

the delivery papers.

This manual also describes options,

which have not been delivered and do

not belong to the contents of delivery.



Page 4

Service

If there are questions, which are not described

in this manual, please contact us directly.

For an efficient handling we need the following

information:

- Description of device (see type plate),

- Serial digit (see type plate),

- Software Release,

- Measuring and operating voltage and

- detailed description of error.

Hints for maintenance

Before delivery the device is tested in various

safety checks and marked with a seal. If the

device is opened, these checks must be re-

peated.

For instruments, which are opened outside the

manufacturing works, no warranty is granted

whatsoever.

Repairing and calibration

Repairing and calibration work can be carried

out in the manufacturing works only.

Front foil

The cleaning of the front foil has to be effected

with a soft cloth using a common cleansing

agent. Acid or acidic agents are not allowed for

cleaning.

Waste management

The UMG96L can be disposed and recycled as

electronical waste according to the legal regu-

lations.

Page 5

Functional description

The electronical three phase measurement

system determines and digitalizes the effective

values of voltages and currents in 50/60 Hz net-

works.

The operating voltage for operation of UMG96L

is generated by the measuring voltage L1-N. A

random test measurement is carried out each

second at all current and voltage inputs. Meas-

uring signal interruptions, which last longer than

one second are safely recognized.

For each random test one period is scanned.

From those sampled values the microproces-

sor calculates the electric quantities. These

measured values are indicated within the pro-

grammable display. The energy as well as the

minimum and maximum values are stored

every 15 minutes whereas the programmed

data are stored immedately is a none volatile

memory (EEPROM).

The scanning frequency for all measuring in-

puts is calculated from the net frequency of

phase 1. At a net frequency of 50Hz the scan-

ning frequency is 2,5kHz and for 60Hz it is

3,0kHz.

Diagr. Generation of the operating voltage from

measurement voltage.

Product description

Intended use

The UMG96L is suitable for fix mounting and

the measurement of voltage, current, power

etc. in low voltage switchgear. The measure-

ment is designed for 3 phase systems with neu-

tral 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 un-

supervised operation.

As the UMG96L receives its power from phase

L1 of the measuring voltage, at least phase L1

and the neutral conductor N must be con-

nected.

The attached voltage must be within the range

of the measuring and operation voltage shown

on type plate.

Either ../5A or ../1A current transformers can be

connected to the current measuring inputs.

The connection of the measuring and operat-

ing voltage is carried out on the back side of

the UMG96L via all-insulated spring power

clamps.

The measuring and operating voltages must be

connected to the UMG 96L via a separation

(switch or power switch) and an overcurrent

protection fuse (2-10A) in the building installa-

tion. The separation (switch or power switch)

must be near the UMG 96L and easily accessi-

ble.

UMG96L

Generation of oper-

ating voltage

Voltage measurement

Page 6

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 gener-

ated by the measuring voltage. The measure-

ment is designed for three phase systems with

neutral conductor (TN and TT mains). The

measuring and operating voltages must be con-

nected to the UMG 96L via a separation (switch

or power switch) and an overcurrent protection

(2-10A) within the building installation.The con-

nection of the measuring and operating

voltages is carried out at the back side of the

UMG 96L via shock protected spring clamps.

230V/400V Standard version

Phase L1 and the neutral conductor N must be

connected, and the attached voltage must be

within the range of the measuring and operat-

ing voltage.

120V/220V Special version

Phase L1 and the neutral conductor N must be

connected, and the attached voltage must be

within the range of the measuring and operat-

ing voltage.

60V/110V Special version

Phase L1 and the neutral conductor N must be

connected, and the attached voltage must be

within the range of the measuring and operat-

ing voltage.

Attention!

Before the device is connected to volta-

ge for the first time, it should be depos-

ited the installation room for at least 2

hours, to create a temperature assimila-

tion and avoid condensation and dew.

Attention!

The limits indicated in the technical data

may not be exceeded, not even while

checking and putting into service of the

UMG 96L.

- The connection wires for the operating volta-

ge leading to the UMG96L must be suitable for

voltages up to 300V against ground.

- The measuring and operating voltage has to

be protected by a fuse, which must be in the

range of 2A to 10A.

- A switch or power switch for the operating vol-

tage must be provided within the building instal-

lation.

- The switch has to be near the instrument and

easily accessible.

- The switch must be marked as separation for

this instrument.

Ꮨ

Page 7

Sum current measurement

If the current measurement is carried out via

two current transformers, the total transformer

ratio must be set to the UMG96L.

Example: Sum current transformer

A current measurement is carried out via one

current transformer with a ratio of 1000/5A and

another one with a ratio of 200/5A. The sum

measurement is carried out with a sum trans-

former 5+5/5A.

The UMG96L has to be programmed as fol-

lows:

Primary current: 1000A + 200A = 1200A

Secondary current: 5A

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 Ampere-

meter in addition to the UMG96L, the Ampere-

meter 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.

Attention!

Current transformers may not be han-

dled in open condition of the secondary,

as the secondary clamps can lead live

voltage.

Attention!

Prior to connecting or exchanging the

UMG 96L, the secondary clamps of the

external current transformers have to be

short circuited.

Diagr. Connection example: UMG96L with

Amperemeter in series.

Ꮨ

Attention!

The program allows current and voltage

transformer ratio setting only, if the maxi-

mum phase power can reach up to

50.0MW and the sum power can reach a

maximum value of 150.0MW.

L l

K k A

UMG96L

Verbraucher

Consumer

Einspeisung

Supply Verbraucher 1

Consumer 1 Verbraucher 1

Consumer 1

Einspeisung 1

Supply 1 Einspeisung 1

Supply 1

UMG96L

L l

K k

L l

K k

AK AL

K l

k l

BK Bl

Inaccuracy

The inaccuracy of the current measuring input

is +- 1% of the measuring range (5A). There-

fore, the inaccuracy of the current measure-

ment is +-50mA.

Example: Inaccuracy

With a current transformer 200/5A, the meas-

uring range is 200A. The inaccuracy is +-1% of

200A = +-2A.

Resolution

The maximum resolution of the current meas-

uring inputs is 10mA. The indication changes

in 0.01A steps.

Example: Resolution current transformer 200/

With a current transformer ratio of 200/5A, a

resolution of 10mA*40 = 400mA is effected.

The display changes in 0.4A steps.

Small currents

The minimum working current is 20mA.At short

circuited or open current measurement input,

the UMG 96L can indicate a small current. This

current is within the range of the allowed meas-

urement inaccuracy.



Page 8

Diagr.: Connection example 4

Measurement with three voltage transformers

and two current transformers.

Connecting options

Diagr.: Connection example 1

Four wire measurement with three current

transformers

Diagr: Connection example 2. Four wire meas-

urement with two current transformers.

Diagr.: Connection example 3

Measurement with three voltage transformers

and three current transformers.

UMG96L

Voltage Measure-

ment

see type plate

Current

measurement

0,02 .. 5A

L1L2 L3 N

Verbraucher

Consumer

../5(1)A

PEN

1k 1l 2k 2l 3k 3l

1234 5678910

UMG96L

Voltage Measure-

ment

see type plate

Current

measurement

0,02 .. 5A

L1L2 L3 N

Verbraucher

Consumer

klkl

../5(1)A

PEN

1k 1l 2k 2l 3k 3l

1234 5678910

UMG96L

Voltage Measure-

ment

see type plate

Current

measurement

0,02 .. 5A

L1L2 L3 N

uu u

UUU

XXX

Verbraucher

Consumer

klkl

../5(1)A

PEN

1k 1l 2k 2l 3k 3l

1234 5678910

UMG96L

Voltage Measure-

ment

see type plate

Current

measurement

0,02 .. 5A

L1L2 L3 N

uu u

UUU

XXX

Verbraucher

Consumer

../5(1)A

PEN

1k 1l 2k 2l 3k 3l

1234 5678910

Page 9

Diagr.: Connection example 7

Measurement in IT networks via three current

transformers.

Verbraucher

Consumer

klkl

../5(1)A

UMG96L

Voltage Measure-

ment

see type plate

Current

measurement

0,02 .. 5A

L1L2 L3 N 1k 1l 2k 2l 3k 3l

1234 5678910

Page 10

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 deliv-

ered fixing brackets have to be used.

Program current and voltage transformers

When the device leaves the manufacturer, a

current transformer of 5/5A is set.

The set voltage transformer ratio has to be

changed only, if a voltage transformer is con-

nected.

When connecting voltage transformers, please

observe the allowed measuring and operating

voltage stated on type plate!

Attach measuring and operating voltage

The allowed measuring and operating voltage

of UMG 96L is indicated on the type plate.

Ꮨ

The connection wires for measuring voltage

leading to the UMG96L must be suitable for

voltages up to 300V against ground and 520V

phase to phase.

After connecting the stated measuring and op-

erating voltage to the UMG 96L, all segments

of the display appear. After approx. two sec-

onds, the UMG 96L switches to the first meas-

ured value indication.

In case that no indication appears, please

check, if the attached operating voltage is

within the rated voltage range.

Attention!

Mesuring and operating voltage, which

do not correspond to the indication on

the type plate, can lead to malfunction

and damage of the instrument.

Strommessung/Current Measurement

k l L2 L3L1 k l

k l

57 10896

Spannungsmessung

Voltage Measurement

L3 L2

UMG96L

45-65Hz IP20

2,5VA

Made in Germany

S V J M A D E



10A

Diagr. Side view 42 6

Fixing brack-

ets

123

Panel max. 6

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