Since the solenoid valves for supply and exhaust are built into the regulator and are pulse-controlled, if the set pressure and the actual pressure differ, ON/OFF repeatedly occurs in order to return to the set pressure.
The abnormal sounds are most likely the operating sounds of the solenoid valves. A sound can be heard during the pressure setting operation, but the sound stops when

For in-line type speed controllers (with One-touch fittings or female threads on both sides), determine the piping direction using the JIS symbol on the product body. The JIS symbol indicates the flow direction of the check valve for meter-in control or meter-out control, allowing for you to determine the direction in which the piping should be connected. ※While it depends on the speed controller

Press and hold “△” and “▽” simultaneously for 1 s or longer in measuring mode.

Avoid industrial water and use fresh water (tap water) instead.
For deionized water (pure water), replace all the water regularly because of the possibility of bacteria and algae generation inside the tank.
Take measures to prevent the generation of static electricity in the piping as well.
Refer to the “Specifications” section in the catalog for other applicable circulating fluids

Unless an alarm is generated, the device can be safely left to operate.
Note) The water-regulating valve of HRS□-W water-cooled thermo-chillers opens and closes depending on the state of the circulating fluid. It opens and closes according to changes in the refrigerant pressure.
Facility water will not flow at the start of operation or when the heat load is low.

The “mesh” indicates the number of openings in 1 inch.
The higher the number, the finer the filtration accuracy.
The adaptation with the nominal filtration rating of SMC elements is as follows: #100 mesh ― 149 μm, #150 mesh ― 105 μm, and #200 mesh ― 74 μm.

It's compact and space saving with an integrated flow adjustment valve. 

Rack Mount Chiller, 110 VAC, CHILLER, RACK MOUNT, REFRIGERATION TYPE, O72, 42 lb

Series PF3W digital flow switch is perfect for applications requiring a constantly monitored flow of cooling or cleaning water. The PF3W series has been improved both in design and operating performance over the PF2W flow switch.  Depending on the selected model, the PF3W is up to 40% smaller in volume, offering improved piping space and flexibility.  Designed to work with fluids up to 90ºC

RETURN SIDE TYPE MANIFOLD, DIGITAL FLOW SWITCH, WATER, PF3W, F19, 760.00000 lb

It's compact and space saving with an integrated flow adjustment valve. 

Series PF3W digital flow switch is perfect for applications requiring a constantly monitored flow of cooling or cleaning water.?The PF3W series has been improved both in design and operating performance?over the PF2W flow switch.? Depending on the selected model, the PF3W is?up to 40% smaller in volume, offering improved piping space and flexibility.? Designed to work with fluids up to 90

. · A solid state auto switch with an indicator light can be mounted. · Can be equipped with an auto switch.

SMC's LECS series is an AC servo motor controller, available in incremental or absolute encoder compatible types.  The LECSA is a pulse input, positioning type for an incremental encoder, and the LECSB is a pulse input type for an absolute encoder. 

SMC's LECS series is an AC servo motor controller, available in incremental or absolute encoder compatible types.  The LECSA is a pulse input, positioning type for an incremental encoder, and the LECSB is a pulse input type for an absolute encoder. 

Fluid: compressed air, Noise reduction: 25-35 dB(A) or more, Maximum operating pressure: 1.0MPa, Effective area mm 2 (Cv): AN*00 35-960 (1.9-53); AN*02 35-90 (1.9-5.0); AN*03 10-60 (0.6-3.3), Ambient and fluid temperature: 5 - 60 C, CONNECTOR ASSY, VALVE, VQ1000 NO SIZE RATING, .00541 lb

Fluid: compressed air, Noise reduction: 25-35 dB(A) or more, Maximum operating pressure: 1.0MPa, Effective area mm 2 (Cv): AN*00 35-960 (1.9-53); AN*02 35-90 (1.9-5.0); AN*03 10-60 (0.6-3.3), Ambient and fluid temperature: 5 - 60 C, LEAD WIRE ASSY, VALVE, VQ1000 NO SIZE RATING, .00431 lb

Fluid: compressed air, Noise reduction: 25-35 dB(A) or more, Maximum operating pressure: 1.0MPa, Effective area mm 2 (Cv): AN*00 35-960 (1.9-53); AN*02 35-90 (1.9-5.0); AN*03 10-60 (0.6-3.3), Ambient and fluid temperature: 5 - 60 C, LEAD WIRE ASSY, VALVE, VQ1000 NO SIZE RATING, .00515 lb

Fluid: compressed air, Noise reduction: 25-35 dB(A) or more, Maximum operating pressure: 1.0MPa, Effective area mm 2 (Cv): AN*00 35-960 (1.9-53); AN*02 35-90 (1.9-5.0); AN*03 10-60 (0.6-3.3), Ambient and fluid temperature: 5 - 60 C, LEAD WIRE ASSY, VALVE, VQ1000 NO SIZE RATING, .00581 lb

Fluid: compressed air, Noise reduction: 25-35 dB(A) or more, Maximum operating pressure: 1.0MPa, Effective area mm 2 (Cv): AN*00 35-960 (1.9-53); AN*02 35-90 (1.9-5.0); AN*03 10-60 (0.6-3.3), Ambient and fluid temperature: 5 - 60 C, CABLE CONNECTOR, VALVE, VQ1000 NO SIZE RATING, .01236 lb