Orbit Merret OMB 451UNI, OMB 452UNI User Manual

GUARANTEE

YEARS

OMB 451UNI
OMB 452UNI

4 DIGIT PROGRAMMABLE

UNIVERSAL INSTRUMENT

DC VOLTMETER/AMMETER

PROCESS MONITOR

THERMOMETER FOR PT 100/500/1 000

THERMOMETER FOR THERMOCOUPLES

DISPLAYS FOR LIN. POTENTIOMETERS

OHMMETER

THERMOMETER FOR NI 1 000

SAFETY INSTRUCTIONS

Please, read the enclosed safety instructions carefully and observe them!
These instruments should be safeguarded by isolated or common fuses (breakers)!
For safety information the EN 61 010-1 + A2 standard must be observed.
This instrument is not explosion-safe!

TECHNICAL DATA

Measuring instruments of the OMB 450 series conform to the European regulation 89/336/EWG.

The instruments are up to the following European standards:
EN 55 022, class B
EN 61000-4-2, -4, -5, -6, -8, -9, -10, -11

Seismic capacity:
IEC 980: 1993, chapter 6

The instruments are applicable for unlimited use in agricultural and industrial areas.

CONNECTION

Supply of energy from the main line has to be isolated from the measuring leads.

ORBIT MERRET, spol. sr.o.

Vodnanska 675/30
19800 Prague 9

Czech Republic
Tel: +420 - 281040200

Fax: +420 - 281040299
e-mail: [e-mail]
www.orbit.merret.cz

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2

INSTRUCTIONS FOR USE OMB 450UNI

1. Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2. Instrument description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3. Instrument connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4. Instrument setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Symbols used in the instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Setting the DP and the (-) sign . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Control keys function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Setting/permitting items into “USER” menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

5. Setting “LIGHT” menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5.0 Description “LIGHT” menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Setting input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Setting Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Setting analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Nastavení rozsahu bargrafu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Nastavení LCD stupnice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Setting of bargrahp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Selection of programming menu „LIGHT“/„PROFI“ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Restoration of manufacture setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Calibration - input range (DU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Selection of instrument menu language version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Setting new access password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Instrument identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

6. Setting “PROFI” menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.0 Description of “PROFI” menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.1 “PROFI” menu - INPUT

6.1.1 Resetting internal values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.1.2 Setting measuring type, range, mode, rate, ... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.1.3 Setting the Real Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6.1.4 External input function selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

6.1.5 Optional accessory functions of the keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

6.2 “PROFI” menu - CHANNEL

6.2.1 Setting measuring parameters (projection, filters, decimal point, description) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

6.2.2 Setting mathematic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

6.2.3 Selection of evaluation of min/max. value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

6.3 “PROFI” menu - OUTPUT

6.3.1 Setting data logging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

6.3.2 Setting Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

6.3.3 Setting data output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

6.3.4 Setting analog output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

6.3.5 Selection of display projection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

6.3.6 Selection of bargraph projection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

6.4 “PROFI” menu - SERVICE

6.4.1 Selection of programming menu „LIGHT“/„PROFI“ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82

6.4.2 Restoration manufacture setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

6.4.3 Calibration - input range (DU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

6.4.4 Selection of instrument menu language version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

6.4.5 Setting new access password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

6.4.6 Instrument identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

7. Setting items into “USER” menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

8. Method of measuring of the cold junction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88

9. Data protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89

10. Error statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

11. Table of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12. Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

13. Instrument dimensions and instalation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

14. Certificate of guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Declaration of conformit y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

1CONTENTS

INSTRUCTIONS FOR USE OMB 450UNI

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INSTRUMENT DESCRIPTION2

2.1 DESCRIPTION

The OMB 451/452 model series are programmable, three-color panel bargraphs with auxiliary display and adjustable
LCD scale. The instruments are designed as dimensional replacement of the ZEPAKOMP instruments. Available are types
UNI, PWR and UQC.
Type OM 402UNI is a multifunction instrument with the option of configuration for 8 various input options, easily configurable
in the instrumentmenu. By further options of input modules it is feasible to measure larger ranges of DC voltage and current
or increase the number of inputs up to 4 (applies for PM).
The instrument is based on an 8-bit microcontroller with a multichannel 24-bit sigma-delta converter, which secures high
accuracy, stability and easy operation of the instrument.

The OMB 451/452 is a multifunction instrument available in following types and ranges

type UNI
DC: 0…60/150/300/1 200 mV
PM: 0…5 mA/0…20 mA/4…20 mA/±2 V/±5 V/±10 V/±40 V
OHM: 0…100 Ϊ/0…1 kΪ/0…10 kΪ/0…100 kΪ/Auto
RTD-Pt: Pt 50/100/Pt 500/Pt 1 000
RTD-Cu: Cu 50/Cu 100
RTD-Ni: Ni 1000/Ni 10000
T/C: J/K/T/E/B/S/R/N/L
DU: Linear potentiometer (min. 500 Ϊ)
type UNI, option A
DC: 0…1 A/0…5 A/120 V/±250 V/±500 V
type UNI, option B (expansion by 3 more inputs)

PM:

3x 0…5 mA/0…20 mA/4…20 mA/±2 V/±5 V/±10 V/±40 V

PROGRAMMABLE PROJECTION

Selection: of type of input and measuring range
Measuring range: adjustable as fixed or with automatic change
Setting: manual, optional projection on the display may be set in the menu for both limit values of the input
signal , e.g. input 0…20 mA> 0…850,0
LCD scale: illuminated and freely programmable
Projection: -9999…9999 (-99999…999999)

COMPENSATION

of conduct: in the menu it is possible to perform compensation for 2-wire connection
of conduct in probe: internal connection (conduct resistance in measuring head)
of CJC (T/C): manual or automatic, in the menu it is possible to perform selection of the type of thermocouple and
compensation of cold junctions, which is adjustable or automatic(temperature at the brackets)

LINEARIZATION

Linearization:* by linear interpolation in50 points (solely via OM Link)

DIGITAL FILTERS

Floating average: from2…30 measurements
Exponen.average: from2…100 measurements
Rounding: setting the projection step for display

MATHEMATIC FUNCTIONS

Min/max. value: registration of min./max. value reached during measurement
Tare: designed to reset display upon non-zero input signal

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INSTRUCTIONS FOR USE OMB 450UNI

* only for types DC, PM, DU

Peak value: the display shows only max. or min. value
Mat. operations: polynome, 1/x, logarithm, exponential, power, root, sin x

EXTERNAL CONTROL

Lock : control keys blocking
Hold : display/instrument blocking
Tare : tare activation/resetting tare to zero
Resetting MM : resetting min/max value
Memory: data storage into instrument memory

2.2 OPERATION

The instrument is set and controlled by five control keys located on the front panel. All programmable settings of the instrument
are performed in three adjusting modes:
LIGHT Simple programming menu

- contains solely items necessary for instrument setting and is protected by optional number code
PROFI Complete programming menu

- contains complete instrument menu and is protected by optional number code
USER User programming menu

- may contain arbitrary items selected from the programming menu (LIGHT/PROFI), which determine
the right (see or change)

- access without password

All programmable parameters are stored in the EEPROM memory (they hold even after the instrument is switched off).

Complete instrument operation and setting may be performed via OM Link communication interface,
which is a standard equipment of all instruments.

The operation program is freely accessible (www.orbit.merret.cz) and the only requirement is the
purchase of OML cable to connect the instrument to PC. It is manufactured in version RS 232 andUSB and is compatible
with all ORBIT MERRET instruments. Another option for connection is with the aid of data output RS 232 or RS 485 (without
the need of the OML cable).
The program OM LINK in „Basic“ version will enable you to connect one instrument with the option of visualization and
archiving in PC. The OM Link „Standard“ version has no limitation of the number of instruments connected.

2INSTRUMENT DESCRIPTION

2.3 OPTIONS

Excitation is suitable for supplying power to sensors and transmitters. It has a galvanic separation.
Comparators are assigned to monitor one, two, three or four limit values with relay output. The user may select limits regime:

LIMIT/DOSING/FROM-TO. The limits have adjustable hysteresis within the full range of the display as well as selectable
delay of the switch-on. Reaching the preset limits is signalled by LED and simultaneously by the switch-on of the relevant relay.
Data outputs are for their rate and accuracy suitable for transmission of the measured data for further projection or directly
into the control systems. We offer an isolated RS232 and RS485 with the ASCII or DIN MessBus protocol.
Analog outputs will find their place in applications where further evaluating or processing of measured data is required in
external devices. We offer universal analog output with the option of selection of the type of output - voltage/current. The
value of analog output corresponds with the displayed data and its type and range are selectable in Menu.
Measured data record is an internal time control of data collection. It is suitable where it is necessary to register measured
values. Two modes may be used. FAST is designed for fast storage (40 records/s) of all measured values up to 8000
records. Second mode is RTC, where data record is governed by Real Time with data storage in a selected time segment
and cycle. Up to 250 000 values may be stored in the instrument memory. Data transmission into PC via serial interface
RS232/485 andOM Link.

INSTRUCTIONS FOR USE OMB 450UNI

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INSTRUMENT CONNECTION3

The instrument supply leads should not be in proximity of the incoming low-potential signals. Contactors, motors with larger
input power should not be in proximity of the instrument. The leads into the instrument input (measured quantity) should be
in sufficient distance from all power leads andappliances. Provided this cannot be secured it is necessary to use shielded
leads with connection to ground (bracket E).
The instruments are tested in compliance with standards for use in industrial area, yet we recommend to abide by the above
mentioned principles.

MEASURING RANGES

Type Input I Input U

DC

PM

OHM

RTD-Pt

RTD-Cu

RTD-Ni

T/C

DU

0…5/20 mA/4…20 mA ±2/±5/±10/±40 V

0…0,1/1/10/100 kΪ/Autorange

Pt 100/Pt 500/ Pt 1 000

Cu 50/100

Ni 1 000/10 000

J/K/T/E/B/S/R/N/L

Linear potentiometer (min. 500 Ϊ)

OPTION “A”

Type Input I Input U

DC

±0,1 A/±0,25 A/±0,5 A to GND (C)
±2 A/±5 A to GND (B)

0…60/150/300/1 200 mV

±100 V/±250 V/±500 V to GND (C)

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INSTRUCTIONS FOR USE OMB 450UNI

123

-

+

L

N

POWER SUPPLY

3INSTRUMENT CONNECTION

OMB 451UQC

INPUT C2/Reset

+

INPUT B2

+

INPUT A2

+

INPUT C1/Reset

+
+

INPUT B1

+

INPUT A1

-

GND

ABCD EF GH

RxD/L+

TxD/L-

IV V VI

GND

III II I

GND

Analog output - I

Analog output - U

C 1

789

L2

E 2

C 2

10 11 12

L3

E 3

C 3

13 14 15

L4

E 4

C 4

Relays

Open collector

16 17 18 19 20 21 22 23

EXT. 3

456

E

L1

E 1

DB

CEA

!

-

+

+

GND

Excitation

INPUT - I

INPUT - U

EXT. 1

EXT. 2

S+ S- E--E+
S+

E+
ES+

-

+

-

2524

ES-­ES-

+

+

INPUT - U

+

*GND - U/I0,5

-

*GND - I5

-

INPUT - I

+

CJC

DC, PM

RTD, OHM, Ni

T/C

DU

Excitation

Option A

INPUT - U

INPUT - U

GND - U

GND - I

INPUT - I

PWR

!

Excitation has the minus pole common with the
input - the bracket no. 22 - GND and you may set its
value by trimmer above the bracket no. 16

Maximum of 250 mA may be connected to “INPUT - I” (bracket no. 23) , i.e. 10-times range overload.
Mind the correct connection/mistaking of current - voltage input.

!

Destruction of measuring resistance in current input (15R) may occur.

INSTRUCTIONS FOR USE OMB 450UNI

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INSTRUMENT SETTING4

Setting PROFISetting LIGHT

• For expert users

• Complete instrument menu

• Access is password protected

• Possibility to arrange items of the
„User“ menu

• Tree menu structure

• For trained users

• Only items necessary for instrument
setting

• Access is password protected

• Possibility to arrange items of the
„User“ menu

• Linear menu structure

Setting USER

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INSTRUCTIONS FOR USE OMB 450UNI

• For user operation

• Menu items are set by the user
(Profi/Light) as per request

• Access is not password protected

• Optional menu structure either tree
(PROFI) or linear (LIGHT)

4.1 SETTING

The instrument is set and controlled by five control keys located on the front panel. All programmable settings of the instrument
are performed in three adjusting modes:

LIGHT Simple programming menu

- contains solely items necessary for instrument setting and is protected by optional number code
PROFI Complete programming menu

- contains complete instrument menu and is protected by optional number code
USER User programming menu

- may contain arbitrary items selected from the programming menu (LIGHT/PROFI), which determine
the right (see or change)

- acces without password
All programmable parameters are stored in the EEPROM memory (they hold even after the instrument is switched off).

Complete instrument operation and setting may be performed via OM Link communication interface, which is a standard
equipment of all instruments.
The operation program is freely accessible (www.orbit.merret.cz) and the only requirement is the purchase of OML cable
to connect the instrument to PC. It is manufactured in version RS 232 and USB and is compatible with all ORBIT MERRET
instruments.
Another option for connection is with the aid of data output RS 232 or RS 485 (without the need of the OML cable).

Scheme of processing the measured signal

4INSTRUMENT SETTING

Input

CHAN. A

Linearization

FILTER

MAT.FCE.

Linearization

Min/Max

Relays

Analog

Data

Memory

Display

INSTRUCTIONS FOR USE OMB 450UNI

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9

INSTRUMENT SETTING4

Setting and controlling the instrument is performed by means of 5 control keys located on the front panel. With the aid of
these keys it is possble to browse through the operation menu and to select and set required values.

Indication of measured input (red/green/orange LED)

Relay status

(red/green/orange LED)

ON the digit is lit
OFF the digit is not lit
OFF the digit is flashing
limits withrestriction

(hysteresis, delay)

Measured value (red/green LED)

the last two places may display
measuring units

0 500200 400100 300

LCD scale

Keys control

372.4~C

12T34

M

Indication of measured input

input number

(only for option “A”)

Symbols used in the instructions

DC PM DU OHM RTD T/C

DEF

values preset from manufacture

42

symbol indicates a flashing light (symbol)

MIN

inverted triangle indicates the item that can be placed in USER menu

CONNEC.

broken line indicates a dynamic item, i.e. it is displayed only in particular selection/version

(green LED)

Indicates the setting for given type of instrument

Function (green LED)

M Min/max. value
T Tare

increasing the value by rotating the ke to the right (UP)
decreasing the value by rotating the ke to the left (DOWN)

pressing the key shortly

pressing the key for longer than 2 seconds (> 2 s.),

after pressing the key the set value will not be stored



after pressing the key the set value will be stored



30

continues on page 30



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10

INSTRUCTIONS FOR USE OMB 450UNI

Setting the decimal point and the minus sign

DECIMAL POINT

Its selection in the menu, upon modification of the number to be adjusted it is performed by the short push key
transition beyond the highest decade, when the decimal point starts flashing. Positioning is performed by / .

THE MINUS SIGN

Setting the minus sign is performed by the key
the current number (e.g..: 013 >

Control keys functions

Key Measurement Menu Setting numbers/selection

access into USER menu exit menu quit editing

programmable key function back to previous level move to higher decade

programmable key function move to previous item move down

programmable key function move to next item move up

, on class 100 > -87)

+

programmable key function move to next level confi rm setting/selection

+

+

+

+

direct access into PROFI menu

access into LIGHT/PROFI menu

on higher decade. When editing the item substraction must be made from

confi rm setting after selection
numeric value

numeric value is set to zero

confi guration of an item for
“USER” menu

determine the sequence of items
in “USER - LIGHT” menu

4INSTRUMENT SETTING

with

Setting items into „USER“ menu

• inLIGHT or PROFI menu

• no items permitted in USER menu from manufacture

• on items marked by inverted triangle

---

legend is flashing - current setting is displayed

+

NO YES SHOW

return to item




INSTRUCTIONS FOR USE OMB 450UNI

---

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11

light

5

SETTING

5.0 SETTING “LIGHT”

LIGHT Simple programming menu

- contains only items necessary for instrument setting and is protected by optional number code

Setting LIGHT

light

• For capable users

• Only items necessary for instrument
setting

• Access is password protected

• Possibility to arrange items of the
„User“ menu

• Linear menu structure

Preset from manufacture

Password “0”
Menu LIGHT
USER menu of f
Setting the items

DEF

!

Upon delay exceeding 60 s the programming mode
is automatically discontinued and the instrument
itself restores the measuring mode

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12

INSTRUCTIONS FOR USE OMB 450UNI

light

light

5SETTING

142.8 PASSW. 0

Type of instruments

OHMRTD

T/C

PMDC DUOHM

Limit 1 Limit 4Limit 3Limit 2

LIM . L.1 20 LIM . L.2 40 LIM . L.3 60 LIM . L.4 80

Setting type A.O. End A.O.Beginnig A.O.

TYP . A .O. MIN. A .O. MAX. A.O. 10004-20

Bargraph projection - beginning

Colour

DU

C. MIN. YES C. MAX. YES

Access password

+

Measuring range

PMTYP E

2-WIRECONNEC. 00000. oFO RM. A

EXT. 1TCCONNEC. 23C.J .TEM . FOR M. A 000000

0MIN A 100MAX A FO RM. A

Bargraph projection - end

0MIN. BG .

Menu type

CERV.CO LOR

4-20m AMODE

100MAX. BG.

MENU LIG HT

0000. oo

LCD scale division

Return to manufacture calibration

RE. CAL . YES

Calibration - only for “DU”

Selecting projection and connection

Level of LCD backlight

5 DIV.DIVIS.

Return to manufacture setting

RE. SET. YES

Option - comparator

Option - Analog output

100%BACKL.

Language selection

LANG. CZECH

Identifi cation

New password

PAS. LI. 0

Type of instruments

OMB 452UNI

Input

SW: version

65-001 4-20

Return to measur-

142.8IDENT . YES

ing mode

INSTRUCTIONS FOR USE OMB 450UNI

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13

5

light

SETTING

142.8

light

PASSW . 0

TYP E

Type „DC“  16

 18

Type “PM”

 20

Type “OHM“

 22

Type “RTD-Pt“

 24

Type “RTD-Ni“

 26

Type “T/C“

 28

Type “DU”

 30

Type “RTD-Cu“

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14

INSTRUCTIONS FOR USE OMB 450UNI

Entering access password
for access into the menu

Access into instrument

PASSW .

menu

PAS = 0

- access into menu is unrestricted, after
releasing keys you automaticaly move to first
item of the menu

Set „Pas sword” = 42 Example

0 1 2 02 12

32 TYP E

DC PM OHM RTD-P t RTD-Ni TC

DU

TYP E

- primary selection of the type of instrument

- performs default setting
from manufacture, incl. calibration

= “PM”

DEF

Type “PM” Example

42

RTD-Cu

Selection of the type of
instrument

of values

DEF

MODEPM

PAS > 0

- access into menu is protected ny number
code

22




Menu Type of instrument

DC DC voltmeter
PM Process monitor
OHM Ohmmeter
RTD-Pt Thermometer for sensors Pt

TYPE

RTD-Ni Thermometer for sensors Ni
TC Thermometer for thermocouples
DU Display for lin. potentiometer
RTD-Cu Thermometer for sensors Cu

light

light

SETTING

5

INSTRUCTIONS FOR USE OMB 450UNI

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15

5

light

SETTING

light

DC DC DC DC DC DC DC DC DC DC DC DC DC

Type “DC”

MODE

MIN A

60 mV 150 mV 300 mV 12 00m V



Selection of the instrument

MODE

measuring range

= 60 mV

DEF

= 500 V*

DEF

* only for option “A”

Range ±150 mV Example

60 mV

150 mV MIN A

Setting for minimum

0

input signal



Menu Measuring range

60 mV ±60 mV
150 mV ±150 mV

MODE

300 mV ±300 mV
1200mV ±1,2 V
100 V ±100 V
250 V ±250 V
500 V ±500 V

0.10 A ±0,1 A

0.25 A ±0,25 A

MODE - A

0.50 A ±0,5 A

1.00 A ±1 A

5.00 A ±5 A




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16

INSTRUCTIONS FOR USE OMB 450UNI

Setting display projection

MIN A

input signal

- range of the setting is -99999…999999

Projec tion for 0 mV > MI N A = 0 Example

for minimum value of

0 MAX A

- position of the DP does not affect display
projection

- the DP is automatically shifted after the
value is confirmed

= 0

DEF

light

light

SETTING

5

MAX A

FOR M. A

Setting for maximum

100

input signal

Setting display projection

MAX A

input signal

- range of the setting is -99999…999999

Projec tion for 150 mV > MA X A = 3500 Example

000000 00000.o 0000. oo 000. ooo 00 . oooo 0. ooooo FLO A. P.

for maximum value of

100 100 100

500



Setting projection of the

FOR M. A

decimal point

- positioning of the DP is set here in the
measuring mode

Projection of DP on display > 00000.o Example

MENU0000. oo 00000. o




- position of the DP does not affect display
projection

- the DP is automatically shifted after the
value is confirmed

= 100

DEF

3500 1500 2500



= 0000.oo

DEF

* subsequent item on the menu depends on instrument equipment

400 300 2 00

FORM . A 0500

DC DC DC DC DC DC DC DC DC DC DC DC DC



32

INSTRUCTIONS FOR USE OMB 450UNI

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17

5

light

SETTING

light

PM PM PM PM PM PM PM PM PM PM PM PM

Type “PM”

MODE

MIN A

0-5m A 0-20 mA 4-20 mA 0-10 V 0-40 V Er . 4



Selection of the instrument

MODE

measuring range

= 4 - 20 mA

DEF

Range 0… 20 mA Example

4-20m A 0-20 mA MIN A

Setting for minimum

0

input signal

Setting display projection

MIN A

0

05

for minimum value of

1

input signal

- range of the setting is -99999…999999

Projec tion for 0 mA > M IN A = -25 Example

• • •

Menu Range

0-5mA 0…5 mA
0-20mA 0…20 mA
4-20mA 4…20 mA
0-2 V ±2 V
0-5 V ±5 V

MODE

0-10 V ±10 V
0-40 V ±40 V

4…20 mA, with error statement of

Er.4-20

„underfl ow“ upon signal smaller
than 3,36 mA




- position of the DP does not affect display
projection

- the DP is automatically shifted after the
value is confirmed

= 0

DEF

-05 -5 -15 -25



5 4 32

MAX A

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18

INSTRUCTIONS FOR USE OMB 450UNI

light

light

SETTING

5

MAX A

FOR M. A

Setting for maximum

100

input signal

Setting display projection

MAX A

input signal

- range of the setting is -99999…999999

Projec tion for 20 m A > MAX A = 2500 Example

000000 00000 .o 0000. oo 000. ooo 00 . oooo 0. ooooo FLO A. P.

for maximum value of

100 100 100 400 300 200



Setting projection of the

FOR M. A

decimal point

- positioning of the DP is set here in the
measuring mode

Projection of DP on display > 00000.o Example

MENU0000. oo 00000. o




- position of the DP does not affect display
projection

- the DP is automatically shifted after the
value is confirmed

= 100

DEF

FORM . A500 1500 2500 0500



= 0000.oo

DEF

* subsequent item on the menu depends on instrument equipment

PM PM PM PM PM PM PM PM PM PM PM PM



32

INSTRUCTIONS FOR USE OMB 450UNI

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19

light

5

SETTING

Type “OHM”

OHM OHM OHM OHM OHM OHM OHM OHM OHM

MODE

light

100 R 1 K 10 K 100 K




CONNEC.

MIN A

Selection of instrument

MODE

measuring range

= 100 Ϊ

DEF

Range 0…10 kΩ Example

100 R 1 K CONNEC.10 K

Menu Measuring range

100 R 0…100 Ϊ
1 k 0…1 kΪ
10 k 0…10 kΪ

MODE

100 k 0…100 kΪ
AUTO Autorange



2-WIRE 3-WIRE 4-WIRE

CONNEC.

DEF

Type of con nection - 3 w ire > CONECT. = 3 -WIRE Example

2-WIRE

Selection of the type of
sensor connection

= 2- WIRE

3-WIRE MIN A

Setting for minimum

0

input signal



Menu Connection

2-WIRE 2-wire
3-WIRE 3-wire

CONECT.

4-WIRE 4-wire




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20

INSTRUCTIONS FOR USE OMB 450UNI

Setting display projection

MIN A

input signal

- range of the setting is -99999…999999

Projec tion for 0 Ω > MI N A = 0 Example

for minimum value of

0 MAX A

- position of the DP does not affect display
projection

- the DP is automatically shifted after the
value is confirmed

= 0

DEF

light

light

SETTING

5

MAX A

FOR M. A

Setting for maximum

100

input signal

Setting display projection

MAX A

input signal

- range of the setting is -99999…999999

Projec tion for 1 kΩ > M AX A = 1000 Example

FORM . A

000000 00000 .o 0000. oo 000. ooo 00 . oooo 0. ooooo FLO A. P.

for maximum value of

100 100 100 1000 0000 000



Setting projection of the

FOR M. A

decimal point

- positioning of the DP is set here in the
measuring mode

Projection of DP on display > 00000.o Example

MENU0000. oo 00000. o




- position of the DP does not affect display
projection

- the DP is automatically shifted after the
value is confirmed

= 100

DEF



= 0000.oo

DEF

* subsequent item on the menu depends on instrument equipment

OHM OHM OHM OHM OHM OHM OHM OHM OHM



32

INSTRUCTIONS FOR USE OMB 450UNI

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21

5

light

SETTING

Type “RTD-Pt”

light

RTD - Pt RTD - Pt RTD - Pt RTD - Pt RTD - Pt RTD - Pt

MODE

CONNEC.

EU-100 EU-50 0 EU -1k0 US-100



Selection of instrument

MODE

measuring range

= Pt 100

DEF

MODE

Range - Pt 1 0 00 > MODE = EU -1k0 Example

EU-100 EU-50 0 CONNEC.EU-1k0

RU-100RU- 50



Menu Measuring range

EU-100 Pt 100 (3 850 ppm/°C)
EU-500 Pt 500 (3 850 ppm/°C)
EU-1k0 Pt 1000 (3 850 ppm/°C)
US-100 Pt 100 (3 920 ppm/°C)
RU-50 Pt 50 (3 910 ppm/°C)
RU-100 Pt 100 (3 910 ppm/°C)



2-WIRE 3-WIRE 4-WIRE

CONNEC.

DEF

Selection of the type of
sensor connection

= 2- WIRE



Menu Connectiion

2-WIRE 2-wire
3-WIRE 3-wire

CONECT.

4-WIRE 4-wire

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22

INSTRUCTIONS FOR USE OMB 450UNI

Type of con nection - 3 wi re > CONNEC . = 3-WIRE Example

2-WIRE

3-WIRE FOR M. A

light

light

SETTING

5

FOR M. A



32

000000 00000 .o 0000. oo

Setting projection of the

FOR M. A

decimal point

- positioning of the DP is set here in the
measuring mode

Projection of DP on display > 000000 Example

MENU00000. o 000000



= 00000.o

DEF

* subsequent item on the menu depends on instrument equipment



RTD - Pt RTD - Pt RTD - Pt RTD - Pt RTD - Pt RTD - Pt

INSTRUCTIONS FOR USE OMB 450UNI

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23

5

light

SETTING

light

RTD - Ni RTD - Ni RTD - Ni RTD - Ni RTD - Ni RTD - Ni RTD - Ni

Type “RTD-Ni”

MODE

CONNEC.



5. 0- 1k 6. 2- 1k 5 .0-10k 6. 2-1 0k

Selection of instrument

MODE

measuring range

= Ni 1 000 - 5 000 ppm/°C

DEF

Range - Ni 10 0 00, 5 000 ppm > M ODE = 5.0-10 k Example

5.0- 1k 6 .2- 1k CONNEC.5. 0-1 0k

MODE



Menu Measuring range

5.0-1k Ni 1000 (5 000 ppm/°C)

6.2-1k Ni 1000 (6 180 ppm/°C)

5.0-10k Ni 10000 (5 000 ppm/°C)

6.2-10k Ni 10000 (6 180 ppm/°C)



2-WIRE 3-WIRE 4-WIRE

CONNEC.

DEF

Selection of the type of
sensor connection

= 2- WIRE



Menu Connection

2-WIRE 2-wire
3-WIRE 3-wire

CONECT.

4-WIRE 4-wire

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24

INSTRUCTIONS FOR USE OMB 450UNI

Type of con nection - 3 w ire > CONNEC = 3 -WIRE Example

2-WIRE

3-WIRE FOR M. A

light

light

SETTING

5

FOR M. A



32



000000 00000 .o 0000. oo

Setting projection of the

FOR M. A

decimal point

- positioning of the DP is set here in the
measuring mode

Projection of DP on display > 000000 Example

MENU00000. o 000000



= 00000.o

DEF

* subsequent item on the menu depends on instrument equipment

RTD - Ni RTD - Ni RTD - Ni RTD - Ni RTD - Ni RTD - Ni RTD - Ni

INSTRUCTIONS FOR USE OMB 450UNI

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25

light

5

SETTING

Type “T/C”

light

T/C T/C T/C T/C T/C T/C T/C T/C T/C T/C T/C

MODE

T/C B T/ C E T/ C J T/C K

>

T/C R T/ C S T/ C TT/C N

>

T/C L




CONNEC.

Selection of the type of

MODE

thermocouple

- setting the input range depends on the
measuring range ordered

= Type “J”

DEF

Type of thermocouple “K” Example

T/C J

T/C K

CONNEC.

Menu Type of thermocouple

T/C B B
T/C E E
T/C J J
T/C K K
T/C N N

MODE

T/C R R
T/C S S
T/C T T
T/C L L



INT.1TC INT.2TC

CONNEC.

DEF

Type of con nection > CO NECT. = EX T. 2TC Example

EXT.1TC EXT. 2TC C.J.TEM .

Selection of the type of
sensor connection

= EXT. 1TC

EXT.1TC

EXT. 2TC



Menu Connection Ref. T/C

measuring C.J. at

INT.1TC

instrument brackets
measuring C. J. at

instrument brackets

INT.2TC

with anti-series
connected ref. TC

the entire measuring

CONECT.

set is working under

EXT.1TC

invaried and constant
temperature

when using

EXT.2TC

compensation box









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26

INSTRUCTIONS FOR USE OMB 450UNI

light

light

SETTING

5

C.J .TEM.

FOR M. A

DEF




= 23

Setting temperature of

23

cold junction

Setting temperature of cold

C.J .TEM.

junction

- range 0…99°C with compensation box

Setti ng temper ature of col d junction > C .J. TEM . = 35 Example

23 25 24 35 25 FORM . A



000000 00000 .o 0000. oo

Setting projection of the

FOR M. A

decimal point

- positioning of the DP is set here in the
measuring mode

Projection of DP on display > 000000 Example

MENU000000

* subsequent item on the menu depends on instrument equipment



DEF

= 000000

T/C T/C T/C T/C T/C T/C T/C T/C T/C T/C T/C



32

!

For thermocoule type “B” the items CONECT.
and C.J. TEM. are not available

!

Method and procedure of setting the cold junctions is
described in separate chapter on page 88

INSTRUCTIONS FOR USE OMB 450UNI

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27

5

light

SETTING

light

DU DU DU DU DU DU DU DU DU DU DU DU DU

Type “DU”

MIN A

MAX A

Setting for minimum

0

input signal

Setting display projection

MIN A

input signal

- range of the setting is -99999…999999

Projec tion for the b eginnin g > MIN A = 0 Example

input signal

- range of the setting is -99999…999999

Projec tion for the e nd > MAX A = 500 0 Example

for minimum value of

0 MAX A

Setting for maximum

100

input signal

Setting display projection

MAX A

for maximum value of

100 100 100

2000

3000

4000 5000




- position of the DP does not affect display
projection

- the DP is automatically shifted after the
value is confirmed

= 0

DEF




- position of the DP does not affect display
projection

- the DP is automatically shifted after the
value is confirmed

= 100

DEF

10000 000 000

FORM . A

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28

INSTRUCTIONS FOR USE OMB 450UNI

light

FOR M. A

light

000000 00000 .o 0000. oo 000. ooo 00 . oooo 0. ooooo FLO A. P.

SETTING

5

DU DU DU DU DU DU DU DU DU DU DU DU DU



- positioning of the DP is set here in the
measuring mode

Projection of DP on display > 00000.o Example

Calibration of the beginning and the end of

32

range of linear potentiometer is on page 40

FOR M. A



Setting projection of the
decimal point

= 0000.oo

DEF

* subsequent item on the menu depends on instrument equipment

MENU0000. oo 00000. o



INSTRUCTIONS FOR USE OMB 450UNI

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29