1. Introduzione
This manual provides essential information for the safe and efficient operation, installation, and maintenance of the PolyScience MX07R-20 Refrigerated Circulating Water Bath. Please read this manual thoroughly before operating the unit to ensure proper usage and to prevent potential hazards.
The PolyScience MX07R-20 is a 7-liter capacity refrigerated circulating water bath designed for precise temperature control in laboratory and industrial applications. It features an MX Controller for intuitive operation and a temperature range from -20°C to 135°C.
2. Informazioni sulla sicurezza
WARNING: Failure to follow these safety instructions may result in personal injury or damage to the equipment.
- Utilizzare sempre l'unità su una superficie stabile e piana.
- Assicurare un'adeguata ventilazione attorno all'unità per evitare il surriscaldamento.
- Do not operate the unit without proper fluid levels in the bath.
- Use only recommended heat transfer fluids. Consult the fluid manufacturer's safety data sheet (SDS) for handling precautions.
- Scollegare l'alimentazione prima di effettuare qualsiasi operazione di manutenzione o pulizia.
- Avoid direct contact with heated or cooled fluids and surfaces.
- Do not immerse the controller or electrical components in fluid.
- Assicurarsi che l'alimentazione elettrica corrisponda ai requisiti dell'unità (120 V/60 Hz).
3. Disimballaggio e installazione
3.1 Disimballaggio
Carefully remove the unit from its packaging. Inspect for any signs of shipping damage. Retain packaging materials for future transport or storage.
3.2 Posizionamento
Place the circulating bath on a sturdy, level surface. Ensure there is sufficient clearance (at least 15 cm or 6 inches) around all sides for proper air circulation, especially for the WhisperKool Environmental Control System and Cool Command modulated refrigeration system. The unit's dimensions are approximately 21.3"D x 8.7"W x 25.4"H.

Image 1: PolyScience MX07R-20 Refrigerated Circulating Water Bath with indicated dimensions (Depth: 21.3", Width: 8.7", Height: 25.4"). The unit features a top-mounted MX Controller and a DuraTop insulating, chemical-resistant top deck.
3.3 Riempimento del fluido
The bath has a 7-liter capacity. Fill the bath with the appropriate heat transfer fluid (e.g., distilled water, ethylene glycol/water mixture, silicone oil) to a level between the minimum and maximum fill lines. Ensure the fluid level is sufficient to cover the pump and heating/cooling coils.
3.4 Collegamento di alimentazione
Connect the power cord to a grounded electrical outlet (120V/60Hz). Ensure the power switch is in the OFF position before connecting.
4. Istruzioni per l'uso
4.1 MX Controller Overview
The MX Controller features a large, universal icon and English display for easy readability. It provides intuitive control over temperature settings and operational parameters.
4.2 Impostazione della temperatura
- Accendere l'interruttore di alimentazione principale.
- The display will show the current bath temperature and the setpoint temperature.
- Use the arrow keys on the controller to adjust the setpoint temperature to your desired value within the range of -20°C to 135°C.
- Press the ENTER key to confirm the new setpoint.
- The unit will begin heating or cooling to reach the setpoint. The Cool Command modulated refrigeration system will optimize cooling performance.
4.3 Calibrazione
The MX Controller offers single-point calibration capability. Refer to the detailed controller manual for specific instructions on performing calibration to ensure temperature accuracy.
5. Manutenzione
5.1 Gestione dei fluidi
- Regularly check the fluid level and replenish as needed to prevent damage to the pump or heater.
- Change the heat transfer fluid periodically (e.g., every 3-6 months, depending on usage) to maintain optimal performance and prevent algae growth or contamination.
5.2 Pulizia
- Esterno: Pulire le superfici esterne con adamp panno e detersivo delicato. Evitare detergenti abrasivi.
- Bath Tank: Drain the bath and clean the interior with a non-abrasive brush or cloth. Rinse thoroughly with distilled water.
- Condensatore: Periodically clean the condenser fins (located on the side/rear) with a soft brush or vacuum cleaner to ensure efficient refrigeration.
5.3 Conservazione
If storing the unit for an extended period, drain all fluid from the bath and ensure it is clean and dry. Store in a clean, dry environment.
6. Risoluzione Dei Problemi
This section addresses common issues. For more complex problems, contact PolyScience technical support.
6.1 L'unità non si accende
- Controllare che il cavo di alimentazione sia collegato saldamente a una presa di corrente.
- Verify the main power switch is in the ON position.
- Check the circuit breaker or fuse for the electrical circuit.
6.2 Temperature Not Reaching Setpoint
- Ensure the fluid level is adequate.
- Verify the setpoint temperature is within the unit's operating range (-20°C to 135°C).
- Verificare la corretta ventilazione attorno all'unità.
- Ensure the condenser is clean and free of obstructions.
- If using an external application, ensure proper insulation and connections.
6.3 Codici di errore
If an error code appears on the MX Controller display, consult the detailed MX Controller manual for specific error code definitions and troubleshooting steps. Common issues may include low fluid level, over-temperature, or sensor faults.
7. Specifiche
| Caratteristica | Specificazione |
|---|---|
| Numero di modello | MX07R-20-A11B |
| Capacità | 7 litri |
| Intervallo di temperatura | -20°C a 135°C |
| Dimensioni del prodotto (P x L x A) | 21.3" x 8.7" x 25.4" |
| Peso dell'articolo | 62.1 libbre |
| Fonte di alimentazione | Corded Electric (120V/60Hz) |
| Materiale | Plastic, Stainless Steel, Phenolic Resin |
| Tipo di controllore | MX Controller |
| Tipo di installazione | Libera installazione |
| Accedi alla posizione | Superiore |
8. Garanzia e supporto
For warranty information, please refer to the official PolyScience website or the warranty card included with your product. PolyScience provides customer support for technical assistance and service inquiries.
This product is eligible for 30-day easy returns. For further assistance, please contact customer support.





