Housing
Material
Die-cast aluminium
Protection Category (EN 60529 / IEC 529)
IP 65 & 67 (better than NEMA 4 and 4X)
Frequency output
(passive)
scalable pulse output, max, load current 100 mA DC
Max. pulse rate : 0.5 Hz
Accuracy
Linearity
+/- 0.1 % of full scale range
Power influence
+/-0.005 % of full-scale range per 1% variation in voltage supply
Temperature coefficient
100ppm of full-scale range per 1
0
C
Field mount converter
Signal cable length up to 10 m (30 ft) maximum
Diagram III
Curve
Meter
size
A
DN 10 S/ ½” S
B
DN 10 S/ ½”
C
DN 15 / ½”
D
DN 20 / ½”
37
Summary of Contents for VFM 1091
Page 1: ...4 2001 Vortex flowmeter Installation and Operating Instructions VFM 1091 I...
Page 12: ...12...
Page 13: ...13...
Page 30: ...Certificate number of VFM 1091 I Ex FM CSA PTB approvals are pending 30...
Page 31: ...31...
Page 32: ...32...
Page 33: ...33...
