OML 343DC

OML 343DC

3 ½  digit DC VOLTMETER - AMMETER

Type OML 343DC is an inexpensive 3 ½ digit panel programmable DC voltmeter - ammeter designed for simple applications with depth of the box of only 30 mm.
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.

  • 3 ½ digit programmable projection
  • range: ±1/±5 A; ±120/±240 V
  • digital filters, tare , linearization
  • size of DIN 96 x 48 mm
  • power supply 10…30 VDC/24 VAC

Options

  • comparator

 

Projection
Display range
±1999, single-coloured 7-segment LED
Display height
14 mm
Display colour
červená, zelená
Signalizing LED
1
Limit L1 (red)
T
Tare (green)
Decimal point
nastavitelná v menu - pevná nebo plovoucí
Display brightness
nastavitelný v menu, automaticky
Input
DC
Range
menu selectable
±1 A
< 12 mV
Input 5
±5 A
< 60 mV
Input 5
±120 V
10 MOhm
Input 1
±240 V
10 MOhm
Input 1
PM
Range
OHM
Range
Connection
RTD
Type
Connection
Ni
Type
Connection
Cu
Type
Connection
T/C
Type
DU
Range
Potentiometer power supply
External inputs
Number
1 input, on contact
Functions
OFF
No function
HOLD
Stopping measurement (option: Display - Analog output - Limits)
TARA
Tare activation
Settings
Control
The device is controlled and set by five buttons located behind the the rear lid
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
Instrument accuracy and functionality
Temperature coefficient
50 ppm/°C
Accuracy
±0,15 % of range + 1 digit
(for projection 0…1999 and 5 measur./s)
Rate
0,5…20 measur./s
Overload capacity
2x; 10x (t < 30 ms) - ne pro > 240 V a 5 A
Resolution (RTD, T/C)
Wire compensation (RTD, OHM)
Cold junction compensation
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
1x relay, switch on contact (250 VAC/30 VDC, 3A)
1x open collector (30 VDC/100 mA)
Power supply
Power supply
10…30 VDC/24 VAC, ±10 %, PF > 0,4, I < 45 A/1 ms, isolated
Current draw
< 1,8 W/1,9 VA
Mechanical properties
Material
Polycarbonate, non-inflammable UL 94 V-0
Dimensions
96 x 48 x 30 mm (w x h x d)
Panel cutout
92 x 44 mm (w x h)
Operating conditions
Connection
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
IP 65 (front panel only)
El. safety
EN 61010-1, A2
Dielectric strength
2,5 kVAC within 1 min. between pow. supply and input
4 kVAC within 1 min. between input and relay output
Insulation resistance
for polution degree II, measuring cat. III.
power supply
300 V (ZI)*
input, output
300 V (ZI)*
EMC
EN 61326-1
Explanatory notes

PI - Primary insulation, DI - Double insulation

Images
Connection
Dimensions and installation
To assemble the order, first select the desired instrument configuration.
OML 343DC-???-??
Comparator
Any
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ne
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Relé
1
Otevřený kolektor
2
Display color
Any
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Any
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červená
1
zelená
2
Rubber gasket
Any
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ne
0
ano
1
specification
Any
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Standard
00
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User manuals

File nameFile typeVersionLanguageDownload
Návod OML343DC
Operating instructions OML343DC
PDF
2019.1.2
Download
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Firmware

File nameFile typeVersionLanguageDownload
OML343DC 62-002 OML343DC
HEX
2019 xxDownload
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