OM 352AC
OM 352AC
3 ½ digit AC VOLTMETER AND AMMETER
The OM 352 model series are simple 3 ½ digit panel programmable instruments designed for maximum usefulness and user comfort while maintaining their fair price. Type OM 352AC is a voltmeter-ammeter suitable for measurements of larger ranges of AC voltages and currents.
The instrument is based on a single-chip microcontroller and a true RMS 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…60/150/300 mV; 0…24/50/90/120/250/450 V
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digital filters, linearization, tare
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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
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comparators
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data output
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analog output
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three-color display - 20 mm
Input
AC
Range
menu selectable
0…1 A
> 30 mV
Input 5
0…5 A
> 150 mV
Input 5
0…60 mV
1,2 kOhm
Input 4
0…150 mV
1,2 kOhm
Input 4
0…24 V
500 kOhm
Input 3
0…50 V
1 MOhm
Input 2
0…90 V
1,8 MOhm
Input 1
0…120 V
500 kOhm
Input 3
0…250 V
1 MOhm
Input 2
0…450 V
1,8 MOhm
Input 1
Input frequency
0…400 Hz
for amplitude from 8 V
for amplitude from 8 V
Measured variables
Voltage (Vrms)
Current (Irms)
Current (Irms)
External inputs
Number
1 input, on contact
Functions
| OFF | No function |
| HLD. | Measurement stop (option: Display - Analogue output - Limits) |
| LOK. | Blocking front panel keys |
| TAR. | Tare activation |
Projection
Display range
0…1999, single-coloured 7-segment LED
0…9999, 3-coloured 7-segment LED
0…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
0,3 % of range + 1 digit
(for projection 0…1999 and 5 measur./s)
(for projection 0…1999 and 5 measur./s)
Rate
0,5/1,2/2,5/5 measur./s
Overload capacity
2x; 10x (t < 30 ms) - not for > 250 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)
4x open collector (30 VDC/100 mA)
4x open collector (30 VDC/100 mA)
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
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
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
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
Mechanical properties
Material
Noryl GFN2 SE1, non-inflammable UL 94 V-I
Dimensions
96 x 48 x 120 mm (w x h x d)
Panel cutout
90,5 x 45 mm (w x h)
Images
Connection
Dimensions and installation
Datasheets
| File name | File type | Version | Language | Download |
|---|---|---|---|---|
|
Datasheet OM352
Datasheet OM352
Datasheet OM352
Katalogový list OM352
|
PDF
|
2015.1 |
|
Download |
|
Datasheet OM352
Datasheet OM352
Datasheet OM352
Katalogový list OM352
|
PDF
|
2014.2 |
|
Download |
|
Datasheet OM352
Datasheet OM352
Datasheet OM352
Katalogový list OM352
|
PDF
|
2013.2 |
|
Download |
|
Datasheet OM352AC
Katalogový list OM352AC
|
PDF
|
2023.1 |
|
Download |
|
Datasheet OM352AC
Datasheet OM352AC
Datasheet OM352AC
Katalogový list OM352AC
|
PDF
|
2020.1 |
|
Download |
|
Datasheet OM352AC
Datasheet OM352AC
Datasheet OM352AC
Katalogový list OM352AC
|
PDF
|
2019.1 |
|
Download |
|
Datasheet OM352AC
Datasheet OM352AC
Katalogový list OM352AC
|
PDF
|
2017.1 |
|
Download |
|
Datasheet OM352_652
Datasheet OM352_652
Katalogový list OM352_652
|
PDF
|
2008.1 |
|
Download |
|
Datasheet OM352_652
Katalogový list OM352_652
|
PDF
|
2006.2 |
|
Download |
| Katalogový list OM352AC |
PDF
|
2016.1 | cs | Download |
| Katalogový list OM352_652 |
PDF
|
2009.1 | cs | Download |
| Katalogový list OM352_652 |
PDF
|
2007.1 | cs | Download |
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 352AC 61-005 |
HEX
|
2020 | 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
|
2024.2.34 | 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.