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OMX 311UNI

UNIVERSAL DIGITAL 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

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 MOhm
Vstup 2
±40 V
> 1 MOhm
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
Mechanical properties
Dimensions
48 x 24 x 72 mm (w x h x d)
Material
PA 66, non-inflammable UL 94 V-0 (black)
Installation
DIN rail, width 35 mm
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
Images
Dimensions and installation
Connection
To assemble the order, first select the desired instrument configuration.
OMX 311UNI-??
Specification
Any
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Any
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Standard
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