OMX 103UNI

UNIVERSAL ISOLATED TRANSMITTER • UNI > U/I/F

The OMX 103 model series are programmable DIN rail mountable transmitters, designed for maximum efficiency and user comfort while keeping their favourable price.
Type OMX 103UNI is a multifunctional two-input instrument with the possibility of 8 input configurations easily adjustable in the instrument´s menu.
The instrument is based on a single-chip microcontroller with 24-bit A/D converter, which ensures good accuracy, stability and easy operation of the instrument. As a standard the instrument is fitted with a backlit LCD display, enabling clear projection of measured values and configuration settings.

multifunction input (DC, PM, RTD, T/C, DU)
output: 0…5/20 mA/4…20 mA
0…2/5/10 V/±10 V/10…10 100 Hz
digital filters, tare, mathematicNCTIONS
galvanic isolation: 2,5 kVAC
DIN rail mounting
width 35 mm
power supply 10…30 V AC/DC or 80…250 V AC/DC

Options

comparators
data output
measured value record

Input

Number of inputs

2 inputs, isolated

Range

menu selectable

±60 mV

> 10 MOhm

Input 3

±150 mV

> 10 MOhm

Input 3

±300 mV

> 10 MOhm

Input 3

±1200 mV

> 10 MOhm

Input 3

Range

menu selectable

OHM

Range

menu selectable
0…100 Ohm
0…1 kOhm
0…10 kOhm
0…30 kOhm (only for 2 or 4-wire connection)

Connection

2, 3 or 4-wire

RTD

Type

menu selectable

EU > 100/500/1 000 Ohm s 3 850 ppm/°C

-50°…450°C

RU > 50 Ohm s 3 910 ppm/°C

-200°…1 100°C

RU > 100 Ohm s 3 910 ppm/°C

-200°…450°C

US > 100 Ohm s 3 920 ppm/°C

-50°…450°C

Connection

2, 3 or 4-wire

Type

menu selectable

Ni 1 000/10 000 s 5 000 ppm/°C

-50°…250°C

Ni 1 000/10 000 s 6 180 ppm/°C

-50°…250°C

Type

menu selectable

Cu 50/100 with 4 260 ppm/°C

-50°…200°C

Cu 50/100 with 4 280 ppm/°C

-200°…200°C

Projection

Display

LCD displey with backlight

Display range

-99m…999M

Number of characters

2x 3 characters + 2x 3 characters (description)

Display height

4,5 mm

Signalizing LED

1, 2	Limits L1, L2 (red)
T	Tare (green)
M	Min./Max. value (green)

Decimal point

menu adjustable - fixed or floating

Settings

Control

The instrument is controlled and set by two buttons on the front panel

LIGHT	contains only items necessary for basic device settings with password access
PROFI	Full device settings with password access
USER	User menu of any item, selected from LIGHT/PROFI. Access without password.

OM Link

Company communication interface for operation, setting and update of device firmware (microUSB)

Instrument accuracy and functionality

Temperature coefficient

50 ppm/°C

Accuracy

±0,15 % of range + 1 digit
±0,3 % of range + 1 digit (T/C)
±0,6 % of range + 1 digit (T/C-B)

Accuracy of cold junction measurement

±1,5°C

Rate

0,5…80 measur./s

Overload capacity

2x; 10x (t < 30 ms)

Wire compensation (RTD, OHM)

< 30 Ohm

Cold junction compensation

adjustable -20°…99°C, automatic

Linearization

linear interpolation in 177 points (only via OM Link)

Digital filters

arithmetic mean	from 2…100 measurements
floating mean	from 2…30 measurements
exponential mean	from 2…100 measurements
rounding	setting projection step for display

Functions

Tare	designed to reset display on non-zero input signal
Fixed tare	preset fixed tare
Min/max value	registration of min./max. value achieved during measurement
Peak value	display shows only max. or min. values
Teach-in	semiautomatic regime of input calibration

Math. functions

polynom, 1/x, logarithm, exponential, power, root, sin x

Math. operations between inputs

sum, difference, product, and quotient

Watch-dog

reset after 20 ms

Calibration

at 25°C and 40 % r.h.

Comparators

Number of

2/4/6 output

Type

Digital, menu adjustable, contact connect. < 50 ms

Mode

Hysteresis	switch. point, hysteresis band "Mez ± 1/2 Hys." and time (0 ... 99.9 s) determ. switching delay
From-To	output interval ON and OFF
Dose	period, its multiples and time (0 ... 99.9 s), during which the output is active
Error	output switching signals error status

Output

2x relay, switch-over contact (250 VAC/50 VDC, 3 A)
2x open collector (30 VDC/100 mA)

Data outputs

Number of outputs

up to 2 outputs

Protocol

ASCII, MODBUS - RTU, PROFIBUS DP

Data format

8 bits + no parity + 1 stop bit (ASCII)

Rate

600…230 400 Baud
0,0096…12 MBaud (PROFIBUS)

RS 232

isolated

RS 485

isolated, addressing max. 31 instruments

Analogue outputs

Number of outputs

4 outputs, isolated

Type

Isolated, programmable with a 16-bit D / A converter, type and range are menu selectable

Temperature coefficient

15 ppm/°C

Nonlinearity

±0,1 % of range

Rate

response to value change < 1 ms

Ranges

0...2 V, 0...5 V, 0...10 V, ±10 V, 0...5 mA, 0...20 mA, 4...20 mA

Compensation

600 Ohm/12 V

Error state

at range of 4...20mA
error message indication (<3.0 mA)
Detection of current loop interruption

Sensor excitation

Fixed

24 VDC/40 mA

Power supply

10…30 V AC/DC, ±10 %, PF > 0,4, I < 40 A/1 ms, isolated
80…250 V AC/DC, ±10 %, PF > 0,4, I < 40 A/1 ms, isolated

Current draw

< 9,4 W/9,2 VA

Operating conditions

Connection

connector terminal board, cable section < 1,5/2,5 mm2

Stabilization period

within 5 minutes after switch on

Operating temperature

-20°…60°C

Storage temperature

-20°…85°C

Protection class

IP20

El. safety

EN 61010-1, A2

Dielectric strength

4 kVAC within 1 min. between pow. supply and input
4 kVAC within 1 min. between input and relay output
3,75 kVAC within 1 min. between input and analogue output
3,75 kVAC within 1 min. between output

Insulation resistance

for polution degree II, measuring cat. III.

power supply	600 V (ZI), 300 V (Di)*
output, output, PN	600 V (ZI), 250 V (Di)*

EMC

EN 61326-1

Mechanical properties

Material

PA 66, non-inflammable UL 94 V-I (blue)

Dimensions

35 x 98 x 113 mm (w x h x d)

Installation

DIN rail, width 35 mm

Images

Dimensions and installation

To assemble the order, first select the desired instrument configuration.

OMX 103UNI-???-???-??-??

Power supply

Any

10...30 V AC/DC

80...250 V AC/DC

No. of inputs

Any

Single input

Two inputs

Analogue output

Any

Yes

Data recording

Any

Yes

Specification

Any

Standard

Selected combination is invalid

For the selected combination there are no devices in stock

Datasheets

File name	File type	Version	Language	Download
Datasheet OMX103UNI Katalogový list OMX103UNI	PDF	2023.1		Download
Datasheet OMX103UNI Datasheet OMX103UNI Datasheet OMX103UNI Katalogový list OMX103UNI	PDF	2020.1		Download

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User manuals

File name	File type	Version	Language	Download
Operating instructions OMX103UNI Návod OMX103UNI	PDF	2020.1.2		Download

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Application notes

File name	File type	Version	Language	Download
Application note Modbus commands OMX 103UNI Aplikační list Modbus prikazy OMX 103UNI	XLS	2020		Download
Application note Protocol MODBUS description	PDF	2006.01	en	Download

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Certificates

File name	File type	Version	Download
Certificate EU_Declaration_OMX103 Certifikát EU_Prohlaseni_OMX103	PDF	2022	Download
Certificate Declaration_17050_OMX103 Certifikát Prohlaseni_17050_OMX103	PDF	2022	Download
Certificate Seismic_test_OMX103 Certifikát Seizmicka_zkouzka_OMX103	PDF	2021	Download