Connection Details; Technical Information - OTC 4291 Manual Del Usuario

Connection Details

All flow meters are calibrated at 21 cSt as standard. Special calibration is available over a custom flow range or at a
different viscosity. Please contact OTC Technical Services to discuss your application.
8
4
5
1

Technical information

Pressure Drop Chart
Hydraulic Oil Viscosity 21 Centistokes (fully open load valve)
10.0
5.0
1.0
0.5
5 10
Pins
1 = Freq +ve
3
2 = Freq -ve
3 = Temp
2
4 = Temp
5 = N/C
N.B. N/C = Do not connect
OTC 4291
50 100 500
Flow (lpm)
Note
1 UK gallon
= 4.546 litres
1 US gallon
= 3.785 litres
1000