OM 352DC
OM 352DC
3 1/2 - digit DC Voltmeter and Ammeter
The OM 352 series are simple 3 ½ digit panel programmable instruments designed for maximum usefulness and user comfort while maintaining their fair price. Type OM 352DC is a voltmeter-ammeter suitable for measurements of larger ranges of DC voltages and currents. The instrument is based on a single-chip microcontroller and an A/D converter, which ensure good accuracy, stability and easy operation of the instrument.
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3 ½ digit programmable projection
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range: 0…1/5 A; 0…20/40/100/200 V
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digital filters, tare, linarization
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size of DIN 96 x 48 mm
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power supply 10…30 V AC/DC or 80…250 V AC/DC
Options
- excitation
- comparators
- data output
- analog output
- three-color display - 20 mm
Input
DC
Range
menu selectable
0…1 A
< 12 mV
Input 5
0…5 A
< 60 mV
Input 5
0…20 V
2 MOhm
Input 2
0…40 V
2 MOhm
Input 2
0…100 V
10 MOhm
Input 1
0…200 V
10 MOhm
Input 1
Projection
Display range
±1999, single-coloured 7-segment LED
-999…9999, 3-coloured 7-segment LED
-999…9999, 3-coloured 7-segment LED
Display height
14 mm, 20 mm
Display colour
red, green, red/green/orange
Signalizing LED
| 1, 2 | Limits L1, L2 (red) |
| T | Tare (green) |
Decimal point
menu adjustable - fixed or floating
Display brightness
menu adjustable
Settings
Control
The device is controlled and set by five buttons on the front panel
Selected functions can also be controlled via external inputs
Selected functions can also be controlled via external inputs
Menu
| LIGHT | contains only items necessary for basic device settings with password access |
| PROFI | Full device settings with password access |
| USER | User menu of any item, selected from LIGHT/PROFI. Access without password. |
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
±0,2 % of range + 1 digit
(for projection ±1999 and 5 measur./s)
(for projection ±1999 and 5 measur./s)
Rate
0,5…10 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 |
Output
2x relay, switch on contact (250 VAC/30 VDC, 3 A)
2x open collector (30 VDC/100 mA)
2x open collector (30 VDC/100 mA)
Analogue outputs
Type
Isolated, programm. with resolution of max. 4,000 steps, type and range are menu selectable
Temperature coefficient
50 ppm/°C
Nonlinearity
±0,2 % of range
Rate
response to value change < 250 ms
Ranges
0...2 V, 0...5 V, 0...10 V, 0...20 mA, 4...20 mA
Compensation
600 Ohm/12 V
Data outputs
Protocol
ASCII, PROFIBUS DP
Data format
8 bits + no parity + 1 stop bit (ASCII)
Rate
300…230 400 Baud
0,0096…12 MBaud (PROFIBUS)
0,0096…12 MBaud (PROFIBUS)
RS 232
isolated
RS 485
isolated, addressing max. 31 instruments
Sensor excitation
Adjustable
5…24 VDC/max. 1,2 W
Power supply
Power supply
10…30 V AC/DC, ±10 %, PF > 0,4, I < 40 A/1 ms, isolated
80…250 V AC/DC, ±10 %, PF > 0,4, I < 40 A/1 ms, isolated
80…250 V AC/DC, ±10 %, PF > 0,4, I < 40 A/1 ms, isolated
Current draw
< 6,8 W/6,9 VA
Power supply protection
Power supply is protected by a fuse inside the instrument
Mechanical properties
Dimensions
96 x 48 x 120 mm (w x h x d)
Panel cutout
90,5 x 45 mm (w x h)
Material
Noryl GFN2 SE1, non-inflammable UL 94 V-I
Operating conditions
Connection
connector terminal board, cable section < 1,5/2,5 mm2
Operating temperature
-20°…60°C
Storage temperature
-20°…80°C
Protection class
IP64 (front panel only)
El. safety
EN 61010-1, A2
Dielectric strength
4 kVAC within 1 min. between pow. supply and input
4 kVAC within 1 min. between pow. supply and data/anal. output
4 kVAC within 1 min. between input and relay output
2,5 kVAC within 1 min.between input and data/anal. output
4 kVAC within 1 min. between pow. supply and data/anal. output
4 kVAC within 1 min. between input and relay output
2,5 kVAC within 1 min.between input and data/anal. output
Insulation resistance
for polution degree II, measuring cat. III.
| power supply | 670 V (ZI), 300 V (Di)* |
| input, output, PN | 300 V (ZI), 150 V (Di)* |
EMC
EN 61326-1
Images
Connection
Dimensions and installation
Datasheets
User manuals
Certificates
| File name | File type | Version | Language | Download |
|---|---|---|---|---|
|
Certificate EU_Declaration_OM352
Certifikát EU_Prohlaseni_OM352
|
PDF
|
2022 |
|
Download |
|
Certificate Declaration_17050_OM352
Certifikát Prohlaseni_17050_OM352
|
PDF
|
2022 |
|
Download |
|
Certificate Seismic_test_OM352
Certifikát Seizmicka_zkouzka_OM352
|
PDF
|
2007 |
|
Download |
Firmware
| File name | File type | Version | Language | Download |
|---|---|---|---|---|
| OM 352DC 61-004 |
HEX
|
2009 | xx | Download |
| OM 352DC 61-A01 |
HEX
|
2019 | xx | Download |
Software
| File name | File type | Version | Language | Download |
|---|---|---|---|---|
|
GSD OM-Profibus
GSD OM-Profibus
|
ZIP
|
2020 |
|
Download |
| GSDML OM-Profinet |
ZIP
|
2020.2.33 | xx | Download |
| GSDML OM-Profinet |
ZIP
|
2024.2.33 | xx | Download |
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.