Observator Instruments OMC-150, Manual

Page: 26 / 38

Manual | OMC-150
Status: Final | Not confidential
Page 26 | 38
V2.13
Appendix B: OMC-150 Specifications
parameter value
Type of instrument Anemometer
Measuring principle Cup and vane
Certification ATEX Ex ia IIC T4 Gb
ATEX group and category II 2 G
ATEX Certificate number
IECEx 02 Ex ia IIC T4 Gb
IEXEx Certificate number
Measuring system ISO
– Metric
Materials of exposed parts Stainless steel
Material of cups Polycarbonate with carbon black as antistatic
Ingress Protection IP-x6 according to EN-60529
Operation Temperature -
25 … +70 deg. C
Humidity
5 … 90%
Measuring range (wind speed)
0 … 75 m/s
Accuracy (wind speed) Better than 2 %
Threshold (speed) Approx. 0.3 m/s
Distance constant 1.68 meters
Measuring range (wind direction) 0
… 360 º (no gap)
Direction accuracy (non-linearity etc.) 2 degrees
Output signal compatibility Direct connection to Obsermet OMC-158
Speed signal NAMUR signal according to IEC/EN-60947-5-6
Direction supply voltage 3.3 V nom.
Direction signals Dual 0..+3.3V analogue voltage signals
Electrical connector type ITT Canon CA 3102E 16S-1
Pigtail cable length 5 meters
Pigtail cable type Screened blue signal cable, LAPP Ölflex EB-CY
8x0.75 mm
2
or equivalent.
Overall height (excluding mating plug) Approx. 905 mm
Overall width (vane mounted) Approx. 460 mm max.
Mounting method Pole-mounting bracket with U-bolts (M10) for
mounting on cylindrical or square pole
Clamping range 35 to 60 mm
Weight Approx. 5 kgs. excluding cable
Packing dimensions 1050 x 510 x 150 mm
Packing weight 10 kgs