FAQ

|Temperature Control Equipment

Where can more information on HRS series serial communication (RS232C or RS485) be found?

According to the catalog, the circulating fluid of HRS series thermo-chillers can be either tap water or 15% ethylene glycol aqueous solution, but can pure water be used as well?

Is the serial communication D-sub connector on the HRS series thermo-chiller main unit male or female? Also, what is the size of the D-sub connector mounting screws?

For an HRS series thermo-chiller set to 30℃, what are the possible causes of an unstable circulating fluid temperature? The installation environment and power supply are within the specifications.

Is it possible to adjust the circulating fluid discharge flow rate or pressure of an HRS series thermo-chiller?

What is the recommended capacity of the earth leakage breaker to be installed when using a HRS series product?

Does SMC sell 15% ethylene glycol aqueous solution?

Is it possible to directly flow the fluid you want to control the temperature of (e.g., cutting oil, seawater, etc.) from the return port of the chiller to the discharge port?

Can temperature control be performed with an HRS series thermo-chiller using tap water from an open-air external tank as the circulating fluid?

The alarm lamp on the HRS□□ flashed, and the alarm No. AL□□　appeared. What is the nature of this alarm?

How do I turn an HRS□□ series thermo-chiller ON/OFF remotely?

What are the features and application examples of SMC’s different temperature control devices?

I am currently testing out an HRS024-A-20. The catalog and the operation manual state the rated operating current as 5.1 A at 50 Hz. However, on the nameplate of the actual product it says “8.7 A.” What capacity is required for the earth leakage breaker?

Is the required amount of circulating fluid for an HRZ series chiller the total capacity of the main tank and the sub tank combined (□L)?

Can industrial water be used as the circulating fluid for an HEC series thermo-con?

Does SMC have any compact, high-precision temperature control devices with a cooling capacity of about 200 to 1000 W?

What are the possible causes of the circulating fluid of an HEC series thermo-con decreasing in 2 to 3 months, despite being able to perform temperature control normally?

Is it possible to connect an external tank to an HEC series thermo-con in addition to the built-in tank?

How does the water-regulating valve of an HRS□-W water-cooled thermo-chiller work?

Can HR□ series thermo-chillers be used in open-air systems (where the user has water tanks, tanks, etc., that are open to the atmosphere)?

What size immersion heat exchanger should be used when using a thermo-chiller for the indirect temperature control of an open-air tank?

Is it possible to calculate the piping resistance to determine whether the circulating fluid flow rate is sufficient when an HRS series thermo-chiller and a temperature control device are □m apart?

What is the “Operation Manual for Communication” described in the HRS series thermo-chiller (HEC series thermo-con) operation manual, and where can I obtain it?

For an HRS series thermo-chiller, what does it mean when alarm code “AL01” is generated and the thermo-chiller stops operating, and what can be done to remedy this?

For an HRS series thermo-chiller, what does it mean when alarm code “AL06” is generated and the thermo-chiller stops operating, and what can be done to remedy this?

For an HRS series thermo-chiller, what does it mean when alarm code “AL28” is generated, and what can be done to remedy this?

What is the replacement period of the mechanical seal of an HRS012/018/024/030 thermo-chiller (option “T”) or an HRS050/060 pump?

What is the recommended storage method for when an HRS series thermo-chiller will not be used for a long period of time?

For an HRS series thermo-chiller, what does it mean when alarm code “AL29” is generated, and what can be done to remedy this?

What is the replacement part number of the green I/O signal connector (socket side 12P) to be connected to the HRS series thermo-chiller main unit, which was included with the product?

For an HRS050-A-20, what does it mean when alarm code “AL06” (High circulating fluid discharge pressure) or “AL08” (Circulating fluid discharge pressure rise) is generated, and what can be done to remedy this?

For an HRS150-A-20-ABK, what does it mean when alarm code “AL09” (Circulating fluid discharge pressure drop) is generated, and what can be done to remedy this?