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
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
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 |
Projection
Display range
±1999, single-coloured 7-segment LED
Display height
14 mm
Display colour
red, green
Signalizing LED
| 1 | Limit L1 (red) |
| T | Tare (green) |
Decimal point
menu adjustable - fixed or floating
Display brightness
menu adjustable, automatically
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
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
±0,15 % of range + 1 digit
±0,3 % of range + 1 digit (T/C)
(for projection ±1999 and 5 measur./s)
±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
adjustable -20°…99°C, automatic
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)
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
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
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
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)
Images
Connection
Dimensions and installation
Datasheets
User manuals
| File name | File type | Version | Language | Download |
|---|---|---|---|---|
|
Operating instructions OML343UNI
Návod OML343UNI
Operating instructions OML343UNI
|
PDF
|
2017.1.2 |
|
Download |
|
Operating instructions OML343UNI
Návod OML343UNI
Operating instructions OML343UNI
|
PDF
|
2013.1.1 |
|
Download |
|
Operating instructions OML343UNI
Návod OML343UNI
|
PDF
|
2012.1.0 |
|
Download |
|
Operating instructions OML343UNI
Návod OML343UNI
|
PDF
|
2011.1.0 |
|
Download |
Certificates
| File name | File type | Version | Language | Download |
|---|---|---|---|---|
|
Certificate EU_Declaration_OML343
Certifikát EU_Prohlaseni_OML343
|
PDF
|
2022 |
|
Download |
|
Certificate Declaration_17050_OML343
Certifikát Prohlaseni_17050_OML343
|
PDF
|
2022 |
|
Download |
Firmware
| File name | File type | Version | Language | Download |
|---|---|---|---|---|
| OML343UNI 62-010 OML343UNI |
HEX
|
2014 | 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.