A.
Failure to read and follow all instructions carefully before installing or operating this
water regulating valve could cause personal injury and/or property damage. Save these instructions
for future use.
NOTE FOR SAFETY
Warning
Never remove the cover when power is applied. This can result in electric shock.
Connect wiring after turning off power. This can result in electric shock.
Do not sprinkle water over the microswitch. This can result in electric shock.
Do not connect a load exceeding the electric rating. This can result in bad contacts.
Do not turn screws other than the operating value setting screw.
Incorrect operations or water leakage can occur.
Install the switch so that the arrow indication and the fluid flow match.
The switch does not work if fluid flows in the opposite direction.
In addition, paddles can be damaged.
Use fluid that does not corrode the liquid contacting material. In addition, use
fluid in liquid form. Gas or liquid mixed with gas causes unstable operations.
Connect the switch to ground. Do not connect the grounding wire to a gas pipe,
water pipe, lightning rod or the grounding wire of a telephone line.
If the grounding is not appropriate, this can result in electric shock.
Use fluid with flow velocity of 2m/s or less. In addition, avoid strong pulsating
fluid and vibration. Paddle can be damaged.
B. SPECIFICATIONS
Specification table
Model
Structure
FQS-0
Non-water proof
FQS-U
FQS-W
FQS-M
Drip proof
FQS-T
Maximum operating pressure 0.98 MPa
Allowable fluid temperature 5 to 80 ℃ (FQS-030GQ9: 5 to 100℃)
Endurance operations 100,000 operations
Mounting screw R1(MPT) or NPT(option)
Ambient temperature -25 to +80 ℃ (FQS-030GQ9: -25 to 50℃)
Contact structure Single-pole double-throw
I N S T R U C T I O N S
FLOW SWITCH
Type
FQS
Liquid contacting materials
Copper alloys
Bronze,stainless steel
Stainless steel(O-ring NBR)
C
A
B
Ambient humidity
80%RH or less
95%RH or less
Flow rate increase
A: Normally open terminal
B: Normally closed terminal
C: Common terminal
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