INPUT
No. of inputs
1
The range is selectable either by DIP switch or
by OM Link free SW from PC
DC
Range
±60 mV
> 10 MΩ
Input 1
±75 mV
> 10 MΩ
Input 1
±100 mV
> 10 MΩ
Input 1
±150 mV
> 10 MΩ
Input 1
±300 mV
> 10 MΩ
Input 1
±1000 mV
> 10 MΩ
Input 1
±20 V
1 MΩ
Input 2
±40 V
1 MΩ
Input 2
±100 mA
< 200 mV
Input 3
PM
Range
±5 mA
< 200 mV
Input 3
±20 mA
< 200 mV
Input 3
4…20 mA
< 200 mV
Input 3
±2 V
1 MΩ
Input 2
±5 V
1 MΩ
Input 2
±10 V
1 MΩ
Input 2
OHM
Range
0…100 / 300 Ω
0…1 / 3 / 10 / 30 /100 kΩ
0…300 kΩ (only 2- and 4-wire)
Connection
2-, 3- and 4-wire
with broken cable/sensor detection
RTD
Range
Pt 100/500/1000, 3851 ppm/°C -50°…450°C
Pt 100, 3 920 ppm/°C
-50°…450°C
Pt 50, 3 910 ppm/°C
-200°…1100°C
Pt 100, 3 910 ppm/°C
-200°…450°C
Connection
2-, 3- and 4-wire
with broken cable/sensor detection
Ni
Range
Ni 1 000/10 000, 5 000 ppm/°C -50°…250°C
Ni 1 000/10 000, 6 180 ppm/°C -200°…250°C
Connection
2-, 3- and 4-wire
with broken cable/sensor detection
Cu
Range
Cu 50/100, 4 260 ppm/°C
-50°…200°C
Cu 50/100, 4 280 ppm/°C
-200°…200°C
Connection
2-, 3- and 4-wire
with broken cable/sensor detection
NTC
Range
NTC 1 2k2, B
2585
= 3600
-40°…125°C
NTC 2 2k0, B
2585
= 3528
-40°…125°C
NTC 3 10k, B
2585
= 3435
-40°…125°C
NTC 4 10k, B
2585
= 3977
-40°…125°C
NTC 5 12k, B
2585
= 3740
-40°…125°C
NTC 6 20k, B
2585
= 4263
-40°…125°C
Connection
2-, 3- and 4-wire
with broken cable/sensor detection
PTC
Range
KTY 81/210
-55°…150°C
Connection
2-, 3- and 4-wire
with broken cable/sensor detection
T/C
Range
J (Fe-CuNi)
-200°…900°C
K (NiCr-Ni)
-200°…1 300°C
T (Cu-CuNi)
-200°…400°C
E (NiCr-CuNi)
-200°…690°C
B (PtRh30-PtRh6)
300°…1 820°C
S (PtRh10-Pt)
-50°…1 760°C
R (Pt13Rh-Pt)
-50°…1 740°C
N (Omegalloy)
-200°…1 300°C
L (Fe-CuNi)
-200°…900°C
XK (Chromel-Copel)
-200°...800°C
with broken cable/sensor detection
CJC
adjustable: -20°…99°C or automatic
DU
Power
1.65 VDC/3 mA,
potentiometer resistance > 500 Ω
INSTRUMENT SPECIFICATIONS
TC
50 ppm/°C
Accuracy
±0.1 % of the range (for 20 meas./s)
±0.15 % of the range (OHM - 100k/300k)
Rate
1…100 measurements/s
Overload
capacity
10x (t < 30 ms), 2x
Compensation of
conduct
max. 30 Ω (RTD)
Measurement
accuracy CJC
±1.5°C (T/C)
Functions
Teach-in, Tare, Math functions, Simulation
Digital filters
exponential / floating / arithmetic average,
rouding
Math functions
polynomial / inverse polynomial / logarithm /
exponential / power / root
Linearization
linear interpolation in 100 points
(only via OM Link)
OM Link
company communication interface for
operation, setting and update of
instruments. (microUSB)
Watch-dog
reset after 500 ms
Calibration
at 25°C and 40 % r.h.
ANALOGUE OUTPUT
No. of outputs
1
Type
isolated, configurable with a resolution of
10 000 parts, type and range are selectable
in the menu
Non-linearity
0.1 % of FS
TC
15 ppm/°C
Rate
response to change of value < 3,5 ms
Ranges
0…10 V, 10…0 V
resistive load < 2,6 kΩ
0…20 mA/20…0
4…20/20…4 mA (active/passive)
compensation of leads' resist. < 600 Ω/12 V
EXCITATION
Fixed voltage
24 VDC/35 mA, isolated
POWER SUPPLY
Power
10…30 VDC/24 VAC, ±10 %, 2.5 VA, PF ≥ 0.4,
I
STP
< 40 A/1 ms, isolated
- fuse inside (T500mA)
MECHANIC PROPERTIES
Material
PA66, incombustible UL 94 V-0, blue
Dimensions
114.5 x 99.0 x 17.5 mm
Installation
to DIN rail 35 mm wide
OPERATING CONDITIONS
Connection
connector terminal blocks,
section < 2.5 mm
2
Stabilization
period
within 5 minutes after switch-on
Working temp.
-20°…60°C
Working
humidity
< 95 % r.h., non condensing
Storage temp.
-20°…85°C
Protection
IP20
Construction
safety class I
El. safety
EN 61010-1, A2
Dielectric
strength
2.5 kVAC for 1 min. between power supply
and signal input
2.5 kVAC for 1 min. between signal input
and outputs
Insulation
resist.*
for pollution degree II, measurement cat. III
power supply > 300 V (PI), 255 V (DI)
Input/outputs > 300 V (PI)
EMC
EN 61326-1 (Industrial area)
Seismic
qualification
IEC/IEEE 60980-344 Edition 1.0, 2020, par. 6, 9
Mechanical
resistance
EN 60068-2-6 ed. 2:2008
* PI - Primary insulation, DI - Double insulation
6
Technical data
5
Instrument dimensions and installation
Measuring instruments of the OMX 311UNI series conform to the European regulation 2014/30/EU and 2014/35/EU
This product must be installed, connected and used in compliance with prevailing standards and/or installation regulations.
As standards, specifications and designs develop from time to time, always ask for confirmation of the information given in this publication.
Side view
mm
inch
Front view
17,5
0.69
Top view
Installation to DIN rail of 35 mm width
4.49
114,5
4.47
114,5
1 2 3 4 5 6 7 8 9 10 11 12
ON
1
2
4
5
3
6
SET
SET
PWR
7
8
10
11
9
12
3.90
99
MINI-TECHDOK - OMX 311UNI - 2022.1 - en
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