OMX 333DC
OMX 333DC
ISOLATED TRANSMITTER • DC V-A > U/I
The OMX 333 model series are simple DIN rail mountable programmable transmitters.
Type OMX 333DC is a transmitter used for measurements of higher DC voltage and current easily adjustable in the instrument´s menu.
The instrument is based on a single-chip microcontroller with a 16-bit A/D and D/A converter, which ensures good accuracy, stability and easy operation of the instrument.
-
input: ±0,5/±1/±5 A; ±25/±50/±100/±200/±400 V
-
output: 0…5/20 mA/4…20 mA
0…2/5/10 V/±10 V -
digital filters, tare, linearization
-
galvanic isolation: 2,5 kVAC
-
width 25 mm
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DIN rail mounting
-
power supply 10…30 VDC/24 VAC
Input
DC
Range
menu selectable
0…0,5 A
< 15 mV
Input 5
0…1 A
< 30 mV
Input 5
0…5 A
< 150 mV
Input 5
±25 V
10 MOhm
Input 1
±25 V
10 MOhm
Input 1
±100 V
10 MOhm
Input 1
±200 V
10 MOhm
Input 1
±400 V
10 MOhm
Input 1
External inputs
Number
1 input, on contact
Functions
| OFF | No function |
| HOLD | Stopping measurement (option: Display - Analog output - Limits) |
| TARA | Tare activation |
Projection
Signalizing LED
| L1, L2 | Limits L1, L2 (red) |
| Lo, Hi | Signalization, settings and errors (red/green) |
Settings
Control
The instrument is controlled and set by two buttons and a DIP switch on the front panel
OM Link
Company communication interface for operation, setting and update of device firmware
OM Link program is also designed for visualization and filing of meas. values from more instruments
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
±0,15 % of range (for 20 measur./s)
Rate
0,5…80 measur./s
Overload capacity
2x; 10x (t < 30 ms) - not for > 200 V and 5 A
Linearization
linear interpolation in 25 points (only via OM Link)
Digital filters
| exponential mean | from 2…100 measurements |
| rounding | setting projection step for display |
Functions
| Tare | designed to reset display on non-zero input signal |
Watch-dog
reset after 500 ms
Calibration
at 25°C and 40 % r.h.
Comparators
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 |
| Ready | output switching signals perfect status |
| Error | output switching signals error status |
Output
1x relay, switch-over contact (250 VAC/30 VDC, 3 A)
2x relay, switch-over contact (250 VAC/30 VDC, 3 A)
2x open collector (30 VDC/100 mA)
4x open collector (30 VDC/100 mA)
2x relay, switch-over contact (250 VAC/30 VDC, 3 A)
2x open collector (30 VDC/100 mA)
4x open collector (30 VDC/100 mA)
Data outputs
Protocol
ASCII
Data format
8 bits + no parity + 1 stop bit (ASCII)
Rate
600…230 400 Baud
RS 485
isolated, addressing max. 31 instruments
Analogue outputs
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
error message indication (<3.0 mA)
Detection of current loop interruption
Power supply
Power supply
10…30 VDC/24 VAC, ±10 %, PF > 0,4, I < 40 A/1 ms, isolated
Current draw
< 2 W/2 VA
Operating conditions
Connection
connector terminal board, cable section < 1,5 mm2
Stabilization period
within 15 minutes after switch on
Operating temperature
-20°…60°C
Storage temperature
-20°…80°C
Protection class
IP20
El. safety
EN 61010-1, A2
Dielectric strength
2,5 kVAC within 1 min. between pow. supply, input and output
2,5 kVAC within 1 min.between input and data/anal. output
2,5 kVAC within 1 min.between input and data/anal. output
Insulation resistance
for polution degree II, measuring cat. III.
| power supply | 550 V (ZI), 255 V (Di)* |
EMC
EN 61326-1
Mechanical properties
Material
PA 66, non-inflammable UL 94 V-I (blue)
Dimensions
25 x 79 x 110 mm (w x h x d)
Installation
DIN rail, width 35 mm
Images
Dimensions and installation
Connection
Datasheets
User manuals
| File name | File type | Version | Language | Download |
|---|---|---|---|---|
|
Operating instructions OMX333DC
Návod OMX333DC
|
PDF
|
2019.2.0 |
|
Download |
|
Operating instructions OMX333DC
Návod OMX333DC
|
PDF
|
2014.1.0 |
|
Download |
Certificates
| File name | File type | Version | Language | 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 |
Micro USB 2.0 cable, A-B with a length of 2 m, for connecting devices to a PC.
Double shielded 2x AWG28, supports up to 480 Mbps.
ISOLATED TRANSDUCER • USB < > OM INSTRUMENTS
Small compact transducer OM LINK USB with cable ensures safe and comfortable galvanically isolated connection between your computer and ORBIT MERRET instruments.