OMX 333iUNI

UNIVERSAL ISOLATED TRANSMITTER • UNI > U/I

The OMX 333i model series are simple DIN rail mountable programmable transmitters.
Type OMX 333iUNI is a multifunctional transmitter with the possibility of 10 input configurations easily adjustable in the instrument´s menu. This device is based on a microprocessor with a 24-bit ∆∑ A/D converter and D/A converter, which ensures good accuracy, stability and easy operation of the instrument.

Multifunction input (DC, PM, RTD, T/C, DU)
Configurable type and measuring range
Analogue output, Relay/Transistor Outputs
Excitation 24 V
Teach-in, Digital filters, Tare, Linearization, Simulation
Quick configuration by DIP switch
PC configurable via USB port
Galvanic isolation 2.5 kVA
Power supply 10…30 VDC / 24 VAC

Input

Number of inputs

1 input

Range

menu selectable

±60 mV

> 10 MOhm

Vstup 3

±75 mV

> 10 MOhm

Vstup 3

±100 mV

> 10 MOhm

Vstup 3

±150 mV

> 10 MOhm

Vstup 3

±300 mV

> 10 MOhm

Vstup 3

±1000 mV

> 10 MOhm

Vstup 3

±20 V

> 1 MOhm

Vstup 1

±40 V

> 1 MOhm

Vstup 1

±100 mA

> 200 mV

Vstup 5

Range

menu selectable

±2 V

1 MOhm

Input 1

±5 V

1 MOhm

Input 1

±10 V

1 MOhm

Vstup 1

±5 mA

< 200 mV

Input 5

±20 mA

< 200 mV

Input 5

4…20 mA

< 200 mV

Input 5

OHM

Range

menu selectable
0…100 Ohm
0…300 Ohm
0…1 kOhm
0…3 kOhm
0…10 kOhm
0…30 kOhm
0…100 kOhm
0...300 kOhm (only for 2 or 4-wire connection)

Connection

2, 3 or 4-wire

RTD

Type

menu selectable

Pt 100/500/1000, 3850 ppm/°C

-50°...450°C

Pt 100 3920 ppm/°C

-50°...450°C

Pt 50 3910 ppm/°C

-200°...1100°C

Pt 100 3910 ppm/°C

-200°...450°C

Connection

2, 3 or 4-wire

NTC

Type

selectable in the menu
NTC1 2k2, B2585=3600 (-40°...125°C)
NTC2 2k0, B2585=3528 (-40°...125°C)
NTC3 10k, B2585=3435 (-40°...125°C)
NTC4 10k, B2585=3977 (-40°...125°C)
NTC5 12k, B2585=3740 (-40°...125°C)
NTC6 20k, B2585=4263 (-40°...125°C)

Connection

2, 3 or 4-wire

PTC

Type

KTY 81/210

Conection

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

Connection

2, 3 or 4-wire

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

Potentiometer power supply

1,65 VDC/3 mA, odpor potenciometru > 500 Ohm

External inputs

Number

2 inputs, on contact

Functions

OFF	No function
HOLD	Stopping measurement (option: Display - Analog output - Limits)
LOCK	Blocking front panel keys
TARA	Tare activation
NUL. TA.	Resetting tare
NUL. M.M.	Resetting Min/Max. value
ROZ.LIM.	Rozepnuti relé/OC (Typ TRVALE)
VZOREK	Spuštění jednorázového měření
HLD.MIN	HOLD - Hodnota minima*
HLD.MAX	HOLD - Hodnota maxima*
HLD.M-M	HOLD - Hodnota MAX-MIN*
*	Hodnota se počítá z periodyí od předchozí aktivace externího vstupu

Settings

Control

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

Optional functions

TARE	Activating function Tare
Teach-in	setting the analog input range

OM Link

Company communication interface for operation, setting and update of device firmware (microUSB)
OM Link program is also designed for visualization and filing of meas. values from more instruments

Instrument accuracy and functionality

Temperature coefficient

50 ppm/°C

Accuracy

0,05 % z rozsahu (DC, PM)
0,07 % z rozsahu
0,1 % z rozsahu (OHM - 100/300 k)

Accuracy of cold junction measurement

±1,5°C

Rate

1…400 měření/s
rychlost 400 měř/s je se FFT filtrací signálu

Overload capacity

2x; 10x (t < 30 ms)

Wire compensation (RTD, OHM)

< 30 Ohm

Cold junction compensation

adjustable -20°…99°C, automatic

Linearization

lineární interpolací v 100 bodech (pouze přes OM Link)

Digital filters

arithmetic mean	from 2…100 measurements
floating mean	from 2…30 measurements
exponential mean	from 2…100 measurements
zaokrouhlení	nastavení pevného kroku pro změnu hodnoty

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
Simulace	simulace vstupního signálu/funkce přístroje
Odložený start	čas kdy se neprovádí měření po připojení přístroje k napájení

Math. functions

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

Watch-dog

reset after 500 ms

Calibration

at 25°C and 40 % r.h.

Comparators

Number of

2 outputs

Type

Digital, menu adjustable, contact connect. < 30 ms

Mode

AKT.NAD	Aktivní nad nastavenou hodnotou
AKT.POD	Aktivní pod nastavenou hodnotou
OKENKO	Počátek, Konec, Hystereze, Zpoždění
DAVKA	Perioda, Doba

Realy functions

SW.ON	contact closed when active
SW.OFF	contact open when active
PULSE	closes once for a moment
LATCH	contact on untill disarmed

Output

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

LED indication

Data outputs

Number of outputs

1 outputs

Type

RS 485, isolated

Protocol

MODBUS - RTU

Data format

Format	8bit + parity + stop bit
Parity	none / even / odd
Stop bit	1 / 1.5 / 2

Rate

600…230 400 Baud

Address

MODBUS

< 246 instruments

Line termination

by internal resistor 120 Ohm

Analogue outputs

Number of outputs

1 output

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

Accuray

±0,02 % full scale

Rate

response to value change < 1 ms

Ranges

0…2 / 5 / 10 V, ±10 V, resistive load > 1 k?
0…5 / 20 mA / 4…20 mA, comp. < 600 Ohm / V

Error state

error message indication (<3.0 mA)
Detection of current loop interruption

Sensor excitation

Fixed

24 VDC/60 mA, isolated

Power supply

10…30 VDC/24 VAC, ±10 %, PF > 0,4, I < 45 A/1 ms, isolated

Current draw

< 2,4 W/2,6 VA

Power supply protection

Power supply is protected by a fuse inside the instrument

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°…80°C

Pracovní vlhkost

< 95 % r.v., nekondenzující

Protection class

IP20

El. safety

EN 61010-1, A2

Dielectric strength

2,5 kVAC within 1 min. between pow. supply and input
2,5 kVAC po 1 min. mezi vstupem a výstupem
4 kVAC within 1 min. between input and relay output

Insulation resistance

for polution degree II, measuring cat. III.

power supply

300 V (ZI)*

EMC

EN 61326-1

RoHS

IEC 63000 : 2018

Seismic capacity

IEC/IEEE 60980-344 ed. 1.0:2020, par 6,9

Mechanical durability

EN 60068-2-6 ed. 2:2008

Images

Dimensions and installation

Connection

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

OMX 333iUNI-??-??

Comparators

Any

2x relay

2x open collector

Output

Any

Analogue

RS 485

Extension

Any

Standard

Stand. SW, sec. adjustment lin.tab. MEGATRON

Sig. chyby 120% max. range for AVL Moravia

Selected combination is invalid

Alternatives in stock

OMX 333iUNI-01-00In stock < 5 pcs

OMX 333iUNI-02-10In stock < 5 pcs

OMX 333iUNI-20-00In stock > 10 pcs

OMX 333iUNI-21-00In stock 5 - 10 pcs

Datasheets

File name	File type	Version	Language	Download
Datasheet OMX333iUNI Katalogový list OMX333iUNI	PDF	2023.1		Download

Show all ↓ Hide ↑

Certificates

File name	File type	Version	Download
Certificate EU_Declaration_OMX333 Certifikát EU_Prohlaseni_OMX333	PDF	2022	Download
Certificate Declaration_17050_OMX333 Certifikát Prohlaseni_17050_OMX333	PDF	2022	Download
Certificate Seismic_test_OMX333 Certifikát Seizmicka_zkouzka_OMX333	PDF	2015	Download