background image

3/4      

Wiring

Adjustments

Checkout Procedure

Figure 7: Switch Action

Figure 6: Minimum Adjustment

To  avoid  possible electric shock or dam-

age  to  the  equipment.  disconnect  the 

power  supply before the wiring connec-

tions or adjustments are made.

To adjust the setting of the flow switch:

1. Remove the F61 cover.

2. For higher flow rates, turn the adjusting screw clock-

    wise. To lower the flow rate after it has been raised

    from the factory setting, turn the adjusting screw coun-

   terclockwise.

3. Check to see that the flow switch is not set lower than

    the factory setting by depressing the main lever nu-

    merous times. If the lever fails to "click" upon return

    at any time, turn the adjusting screw clockwise until

    the lever clicks upon return every time.

The circuit between the red and the yellow leads (termi-

nals) will close when sufficient liquid flows through the

pipe to trip the F61 (see Table 1). A low flow indicator

light or signal, when used, will activate when the liquid

flow decreases or ceases.

Before leaving the installation, observe at least three

complete operating cycles to be sure that the F61 and

the system to which it is connected are functioning cor-

rectly

The switch is factory set at approxi-

mately  the  minimum  flow rate (see

Table 1 ).  Do not set  lower than the

factory  setting as  this may result in

the  switch  failing  to  return to a'no

flow' position.

Sealed settings(screws marked with

black paint) are not intended to be

changed. Adjustment attempts may

damage the control or cause loss of

calibration, voiding the warranty.

Make all wiring connections using copper conduc-

tors only.

Install all wiring in accordance with the National Elec-

tric Code and local regulations.

WARNING: Shock hazard.

CAUTION: Improper operation hazard.

CAUTION: Equipment damage hazard.

Action of Switch

on an lncrease

in Flow Above

the Setpoint

Action of Switch
on an Decrease

in Flow Above

the Setpoint

Range 

Adjustment

Screw

Yellow

Yellow

Blue

Blue

Red (common)

Red (common)

Main
Lever

Adjusting

Screw

Hotowell International Co.,Limited | www.hotowell.com | Tel.:+86-592-3327332 | Fax.:+86-592-3272142

Reviews: