OMX 333iUNI

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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
DC
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
PM
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
Ni
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
Cu
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
DU
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
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
?
Any
?
No
0
2x relay
2
2x open collector
4
Output
Any
?
Any
?
No
0
Analogue
1
RS 485
2
Extension
Any
??
Any
??
Standard
00
Stand. SW, sec. adjustment lin.tab. MEGATRON
01
Sig. chyby 120% max. range for AVL Moravia
10
Selected combination is invalid
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