Hypertherm HPR260 Manual Gas Preventive Maintenance Program Rev.5 - Manual (Page 179)

MAINTENANCE
HPR260 Auto Gas Instruction Manual 5-35
TP 206 TP 210
Testing the flow switch
1. Turn ON the power.
2. Measure the VDC between TP210 and TP206.
TP206 is common on PCB3. TP210 provides a filtered, 67% scaled, voltage from the flow switch. 0.45 VDC (0.67
VDC at the flow switch) equals 2.3 lpm (0.6 gpm). If the TP210 voltage reading is below 0.45 VDC and the flow is
equal to or above 3.0 lpm (1 gpm), replace the flow switch.
5