OMX 311UNI UNIVERSAL DIGITAL CONVERTER CONVERTER ( UNI > U/I )

The OMX 300 model series are digital DIN rail mounted signal converters housed in an enclosure only 17.5 mm wide.

The OMX 311UNI type is a galvanic isolated single-channel universal signal converter. It can be configured for 10 different input variants. Setting of both the input and output ranges can be done conveniently by a DIP switch located on the side of the housing or from a PC via the OM Link SW.
This device is based on a microprocessor with a 24-bit ∆∑ A/D converter, which guarantees high accuracy and excellent stability.

• Multifunction input (DC, PM, RTD, T/C, DU)

• Analogue output, passive/active

• Quick configuration by DIP switch

• PC configurable via USB port

• Excitation 24 VDC

• Galvanic isolation 2.5 kVAC

• Simple instalation to DIN rail

• Power supply 10…30 VDC, 24 VAC
  
  
  Technical Data:
   

  Input

  *

  Number of inputs

  1 input

  DC

  Range

  ±60 mV

  > 10 MOhm

  Vstup 1

  ±75 mV

  > 10 MOhm

  Vstup 1

  ±100 mV

  > 10 MOhm

  Vstup 1

  ±150 mV

  > 10 MOhm

  Vstup 1

  ±300 mV

  > 10 MOhm

  Vstup 1

  ±1000 mV

  > 10 MOhm

  Vstup 1

  ±20 V

  > 1 M?

  Vstup 2

  ±40 V

  > 1 M?

  Vstup 2

  ±100 mA

  > 200 mV

  Vstup 3

  PM

  Range

  ±5 mA

  < 200 mV

  Input 3

  ±20 mA

  < 200 mV

  Input 3

  ±2 V

  1 MOhm

  Input 2

  ±5 V

  1 MOhm

  Input 2

  ±10 V

  1 MOhm

  Input 2

  4…20 mA

  < 200 mV

  Input 3

  OHM

  Range

  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

  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

  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

  Ni

  Type

  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

  Cu

  Type

  Cu 50/100 with 4 260 ppm/°C

  -50°…200°C

  Cu 50/100 with 4 280 ppm/°C

  -200°…200°C

  Connection

  2-, 3-, or 4-wire

  DU

  Potentiometer power supply

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

  Signalizing LED

  PWR, SET

  Device status signaling (RGB)

  Settings

  Control

  The device is controlled and set by a single button on the front panel

  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

  15 ppm/°C

  Accuracy

  ±0,1 % z rozsahu (pro 20 měření/s)
  ±0,15 % z rozsahu (OHM - 100k/300k)

  Accuracy of cold junction measurement

  ±1,5°C

  Rate

  1…100 measur./s

  Overload capacity

  2x; 10x (t < 30 ms)

  Wire compensation (RTD, OHM)

  < 30 Ohm

  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
  Min/max value	registration of min./max. value achieved during measurement
  Teach-in	semiautomatic regime of input calibration
  Simulace	simulace vstupního signálu/funkce přístroje

  Math. functions

  polynom, invertní polynom, logarithm, exponential, power, root

  Watch-dog

  reset after 500 ms

  Calibration

  at 25°C and 40 % r.h.
  Analogue outputs

  Number of outputs

  1 output

  Type

  Isolated, programmable with resolution of max.10,000 steps, type and range are menu selectable

  Temperature coefficient

  15 ppm/°C

  Nonlinearity

  ±0,1 % of range

  Rate

  response to value change < 160 µs

  Ranges

  0…10 V / 10...0 V (resistive load > 2.6 kOhm), 0...20 mA, 4…20 mA / 20...4 mA (aktivní/pasivní)

  Compensation

  600 Ohm/12 V

  Error state

  error message indication (<3.0 mA)
  Sensor excitation

  Fixed

  24 VDC/35 mA, isolated
  Power supply

  Power supply

  10…30 VDC/24 VAC, ±10 %, PF > 0,4, I < 40 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 < 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

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

  Insulation resistance

  for polution degree II, measuring cat. III.
  

  napájení přístroje	300 V (ZI), 255 V (DI)
  input, output	300 V (ZI)*

  EMC

  EN61326-1: 2006

  Seismic capacity

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

  Material

  PA 66, non-inflammable UL 94 V-0 (black)

  Dimensions

  48 x 24 x 72 mm (w x h x d)