OML 343UNI

OML 343UNI

3 ½  digit MULTIFUNCTION INSTRUMENT

Type OML 343UNI is a multifunction instrument with the possibility of configuration for 8 different input options, easily cofigurable in the instrument menu. Depth of the box 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
  • multifunction input UNI  (DC, PM, RTD, T/C, DU)
  • 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
±90 mA
< 1 V
Input 5
±180 mA
< 2 V
Input 5
±30 mV
> 10 MOhm
Input 3
±60 mV
> 10 MOhm
Input 3
±1000 mV
> 100 MOhm
Input 3
±20 V
1,25 MOhm
Input 1
±40 V
1,25 MOhm
Input 1
±80 V
1,25 MOhm
Input 1
PM
Range
menu selectable
0…20 mA
< 200 mV
Input 5
4…20 mA
< 200 mV
Input 5
±2 V
1 MOhm
Input 1
±5 V
1 MOhm
Input 1
±10 V
1 MOhm
Vstup 1
OHM
Range
menu selectable
0…100 Ohm
0…300 Ohm
0…1,5 kOhm
0…3 kOhm
0…24 kOhm
Connection
2, 3 or 4-wire
RTD
Type
menu selectable
EU > 100/500/1 000 Ohm s 3 850 ppm/°C
-50°…450°C
RU > 50 Ohm s 3 910 ppm/°C
-200°…1 100°C
RU > 100 Ohm s 3 910 ppm/°C
-200°…450°C
US > 100 Ohm s 3 920 ppm/°C
-50°…450°C
Connection
2, 3 or 4-wire
Ni
Type
menu selectable
Ni 1 000/10 000 s 5 000 ppm/°C
-50°…250°C
Ni 1 000/10 000 s 6 180 ppm/°C
-50°…250°C
Connection
2, 3 or 4-wire
Cu
Type
menu selectable
Cu 50/100 with 4 260 ppm/°C
-50°…200°C
Cu 50/100 with 4 280 ppm/°C
-200°…200°C
Connection
2-, 3-, or 4-wire
T/C
Type
selecmenu selectable
J (Fe-CuNi)
Input 3
-200°…900°C
K (NiCr-Ni)
Input 3
-200°…1 300°C
T (Cu-CuNi)
Input 4
-200°…400°C
E (NiCr-CuNi)
Input 3
-200°…690°C
B (PtRh30-PtRh6)
Input 4
300°…1 820°C
S (PtRh10-Pt)
Input 4
-50°…1 760°C
R (Pt13Rh-Pt)
Input 4
-50°…1 740°C
N (Omegalloy)
Input 3
-200°…1 300°C
L (Fe-CuNi)
Input 3
-200°…900°C
DU
Range
Configuration is performed in two steps:
1.
setting numerical value for the beginning and end of the potentiometer range
2.
slider position calibration for the beginning and end of the potentiometer runway
Potentiometer power supply
2,5 VDC/6 mA, potentiometer resistance > 500 Ohm
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
±0,3 % of range + 1 digit (T/C)
(for projection ±1999 and 5 measur./s)
Accuracy of cold junction measurement
±1,5°C
Rate
0,5…20 measur./s
Overload capacity
2x; 10x (t < 30 ms)
Resolution (RTD, T/C)
1°C, 0,1°C
Wire compensation (RTD, OHM)
< 30 Ohm
Cold junction compensation
nastavitelná -20°…99°C, automatická
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-over contact (250 VAC/30 VDC, 3 A)
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 343UNI-???-??
Comparator
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Relé
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Otevřený kolektor
2
Display color
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červená
1
zelená
2
Rubber gasket
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specification
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Standard
00
Okénkové limita - rozpínací
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