OM 502DC

OM 502DC

5 digit DC VOLTMETER / AMMETER

Type OM 502DC is a precise 5 digit panel programmable DC voltmeter and ammeter.The instrument is based on a single-chip microcontroller with a fast 24-bit sigma-delta converter, which ensures good accuracy, stability and easy operation of the instrument.

  • 5 DIGIT PROGRAMMABLE PROJECTION
  • RANGE:  ±99,999 mV; ±999,99 mV; ±9,9999 V; ±99,999 V; ±300,00 V
    ±999,99 µA; ±9,9999 mA; ±99,999 mA; ±999,99 mA; ±5,0000 A
  • ACCURACY 0,02 %, RATE 100 MEASUR./S
  • DIGITAL FILTERS, TARE, LINEARIZATION, MATH. FUNCTIONS
  • SIZE OF DIN 96 x 48 mm
  • POWER SUPPLY 10…30 V AC/DC or 80…250 V AC/DC

Options

  • comparators

  • data output

  • analog output

  • measured data record

 

Projection
Display range
-99999…999999, single-coloured 14-segment LED
Display height
14 mm
Display colour
červená, zelená
Signalizing LED
1, 2, 3, 4
Limits L1, L2, L3, L4 (red)
T
Tare (green)
M
Min./Max. value (green)
Description
poslední dva znaky displeje lze použít pro zobrazení měřených veličin (jen 14 mm displej)
Decimal point
nastavitelná v menu - pevná nebo plovoucí
Display brightness
nastavitelný v menu
Displayed values
Kan A
Value from channel A
Fil. A
Value from channel A after digital filter adjustment
Mat. Fn.
Value of mathematical function
Max.
Maximum value
Min.
Minimum value
Input
DC
Range
±999,99 µA
< 300 mV
Input I
±9,9999 mA
< 300 mV
Input I
±99,999 mA
< 300 mV
Input I
±999,99 mA
< 50 mV
Input I
±5,0000 A
< 10 mV
Input I
±99,999 mV
1,8 MOhm
Input U
±999,99 mV
1,8 MOhm
Input U
±9,9999 V
1,8 MOhm
Input U
±99,999 V
1,8 MOhm
Input U
±300,00 V
1,8 MOhm
Input U
Settings
Control
The device is controlled and set by five buttons on the front panel
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.
Optional functions
Buttons "Left", "Up", "Down", "Enter" can be assigned additional optional features
ZAKAZ
button has no function
NUL. M.M.
Resetting Min/Max vaslues
NUL. TA.
Tare reset
MENU
Direct access to the selected menu item
DOC. H.
Temporary projection of selected values
TARA
Activating function Tare
ULOZ
Starting recording of the measured data into device memory
NUL. PA.
Resetting memory of the measured data
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
Instrument accuracy and functionality
Temperature coefficient
50 ppm/°C
Accuracy
±0,02 % of range + 1 digit
±0,05 % of range + 1 digit (DC - 1 A)
±0,1 % of range + 1 digit (DC - 5 A)
Rate
1…100 measur./s
Overload capacity
2x; 10x (t < 30 ms) - ne pro > 300 V a 5 A
Linearization
linear interpolation in 50 points (only via OM Link)
Digital filters
arithmetic mean
from 2…100 measurements
floating mean
from 2…30 measurements
exponential mean
from 2…100 measurements
rounding
setting projection step for display
Functions
Min/max value
registration of min./max. value achieved during measurement
Tare
designed to reset display on non-zero input signal
Fixed tare
preset fixed tare
Peak value
display shows only max. or min. values
Math. functions
polynom, 1/x, logaritmus, exponenciál, odmocnina, mocnina, sin x
Data record
Measured data recording into the memory
RTC
period - 1 s…1 day, time-date-display value, < 266k data, 15 ppm/°C
FAST
40 records/s, display value, < 8k data
Not available in combination with with the data output MODBUS
Watch-dog
reset after 400 ms
Calibration
at 25°C and 40 % r.h.
Comparators
Type
Digital, menu adjustable, contact connect. < 30 ms
Mode
Hysteresis
switch. point, hysteresis band "Mez ± 1/2 Hys." and time (0 ... 99.9 s) determ. switching delay
From-To
output interval ON and OFF
Dose
period, its multiples and time (0 ... 99.9 s), during which the output is active
Relay idle state
rozepnutý nebo sepnutý - nastavitelný v menu
Output
1x relay, switch-over contact (250 VAC/30 VDC, 3 A)
2x relay, switch-over contact (250 VAC/30 VDC, 3 A)
1x relay, switch on contact (250 VAC/30 VDC, 3A)
2x relay, switch on contact (250 VAC/30 VDC, 3 A)
2x bistable relay (250 VAC/30 VDC, 3A)
3x relay, 2x switch on + 1x switch-over contact (250 VAC/30 VDC, 3A)
4x relay, 2x switch on + 2x switch-over contact (250 VAC/30 VDC, 3A)
2x open collector (30 VDC/100 mA)
4x open collector (30 VDC/100 mA)
2x open collector (30 VDC/100 mA) + 2x relay, CO contact (250 VAC/30 VDC, 3 A)
2x SSR (250 VAC/1 A)
Data outputs
Protocol
ASCII, MESSBUS, MODBUS - RTU, PROFIBUS DP
Data format
8 bits + no parity + 1 stop bit (ASCII)
7 bits + even parity + 1 stop bit (Messbus)
Rate
600…230 400 Baud
0,0096…12 MBaud (PROFIBUS)
RS 232
izolovaná
RS 485
izolovaná, adresace max. 31 přístrojů
Analogue outputs
Type
Isolated, programmable with a 16-bit D / A converter, type and range are menu selectable
Nonlinearity
±0,1 % of range
Temperature coefficient
15 ppm/°C
Rate
response to value change < 1 ms
Range
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, 1 000 Ohm/24 V
Error state
at range of 4...20mA
error message indication (<3.0 mA)
Detection of current loop interruption
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
Current draw
< 8,0 W/7,8 VA
Power supply protection
Power supply is protected by a fuse inside the instrument
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)
Operating conditions
Connection
connector terminal board, cable section < 1,5/2,5 mm2
Stabilization period
within 15 minutes after switch on
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
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
Explanatory notes

PI - Primary insulation, DI - Double insulation

Images
Dimensions and installation
Connection
To assemble the order, first select the desired instrument configuration.
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User manuals

File nameFile typeVersionLanguageDownload
Návod OM502
Operating instrucitons OM502
Operating instrucitons OM502
Operating instrucitons OM502
PDF
2013.3.1
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Operating instrucitons OM502
Operating instrucitons OM502
Návod OM502
PDF
2007.1.2a
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Operating instrucitons OM502
Operating instrucitons OM502
PDF
2006.1
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Operating instrucitons OM502
Návod OM502
PDF
2006.1.2
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Operating instrucitons OM502
Návod OM502
PDF
2019.4
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Operating instrucitons OM502
Operating instrucitons OM502
Návod OM502
Operating instrucitons OM502
PDF
2013.3.2
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Návod OM502
Operating instrucitons OM502
Operating instrucitons OM502
PDF
2011.3
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Operating instrucitons OM502
Návod OM502
Operating instrucitons OM502
Operating instrucitons OM502
PDF
2007.1.2b
Download
Návod OM502
Operating instrucitons OM502
PDF
2010.1.6
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Návod OM502
Operating instrucitons OM502
Operating instrucitons OM502
Operating instrucitons OM502
PDF
2007.1.5
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Návod OM502
PDF
2007.1.3 csDownload
Operating instrucitons OM502
PDF
2007.1.2 deDownload
Operating instrucitons OM502
Operating instrucitons OM502
Operating instrucitons OM502
Návod OM502
PDF
2007.1.4
Download
Operating instrucitons OMProfibus
Návod OMProfibus
PDF
2010.1.2
Download
Operating instrucitons OMProfibus
PDF
2010.1.1 enDownload
Návod OMProfi
PDF
2020.3 csDownload
Návod OMProfibus
Operating instrucitons OMProfibus
PDF
2014.2.1
Download
Návod OMProfibus
PDF
2014.2.0 csDownload
Návod OMProfibus
PDF
2007.1.0 csDownload
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Firmware

File nameFile typeVersionLanguageDownload
OM 502DC 78-500
HEX
2015 xxDownload
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Software

File nameFile typeVersionLanguageDownload
GSD OM-Profibus
ZIP
2020 xxDownload
GSDML OM-Profinet
ZIP
2020.2.33 xxDownload
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CAD

File nameFile typeVersionLanguageDownload
OM Krabicka
DWG
2014 xxDownload
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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.