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OMM 335RTD

OMM 335RTD

4-digit THERMOMETER FOR Pt/Ni SENSORS

OMM 335RTD is a 4-digit thermometer for resistive Pt/Ni xxx sensors.
The instrument is based on a microcontroller and an A/D converter, which ensures good accuracy and easy operation of the instrument. The 22 mm cross-section of the circular instrument body allows its convenient mounting into mosaic and signalling panels.

  • 4-digit projection
  • input  Pt 100/500/1 000; Ni 1 000/10 000; 0…390/3900 Ω
  • linearization
  • size 51,5 x 29,5 mm
  • power supply 10…30 VDC/24 VAC
Input
*
Number of inputs
1 input
OHM
Range
menu selectable
0…390 Ohm
0…3,9 kOhm
Connection
2 or 3-wire
RTD
Type
menu selectable
EU > 500 Ohm s 3 850 ppm/°C
-50°…850°C
EU > 1 000 Ohm s 3 850 ppm/°C
-50°…850°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 or 3-wire
Ni
Type
menu selectable
Ni 1 000 s 5 000 ppm/°C
-50°…250°C
Ni 1 000 s 6 180 ppm/°C
-50°…250°C
Connection
2 or 3-wire
Projection
Display range
-999…9999, single-coloured 7-segment LED
Display height
14 mm
Display colour
red, green
Decimal point
menu adjustable - fixed or floating
Display brightness
menu adjustable
Settings
Control
The instrument is controlled and set by two buttons located on the instrument body
Menu
PROFI Full device settings with password access
OM Link
Company communication interface for operation, setting and update of device firmware (microUSB)
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
Rate
0,1/0,2/0,5/1/2/5/10/20/50/100 measur./s
Overload capacity
2x; 10x (t < 30 ms)
Resolution (RTD, T/C)
1°C, 0,1°C
Wire compensation (RTD, OHM)
< 30 Ohm
Linearization
linear interpolation in 50 points (only via OM Link)
Watch-dog
reset after 500 ms
Calibration
at 25°C and 40 % r.h.
Power supply
Power supply
24 V DC/AC, ±10 %, PF ? 0,4, ISTP< 45 A/1,1 ms
Current draw
< 0,2 W/0,2 VA
Operating conditions
Connection
connector terminal board, cable section < 1,3 mm2
Stabilization period
within 5 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
700 VAC within 1 min. between pow. supply and input
Insulation resistance
for polution degree II, measuring cat. III.
napájení přístroje 250 V (ZI)*
EMC
EN 61326-1
Mechanical properties
Material
PA 66, non-inflammable UL 94 V-I (black)
Dimensions
51,5 x 29,5 x 66 mm (w x h x d)
Panel cutout
arithmet. mean 22,5 mm
Images
Connection
Dimensions and installation
To assemble the order, first select the desired instrument configuration.
OMM 335RTD-??-??
Power supply
Any
?
Any
?
10...30 VDC/24 VAC
0
24 V AC/DC
2
Display color
Any
?
Any
?
Red
1
Green
2
Specification
Any
??
Any
??
Standard
00
Selected combination is invalid
Alternatives in stock
OMM 335RTD-01-00In stock 5 - 10 pcs

Micro USB 2.0 cable, A-B with a length of 2 m, for connecting devices to a PC.
Double shielded 2x AWG28, supports up to 480 Mbps.

USB ISOLATOR

Small compact isolator OM USB ISO ensures safe galvanic separation of your USB appliance.