Original operator’s manual Circulating Baths with MX Temperature Controller RotaChill Operator’s Manual Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully the validity of this document with respect to this product. Manual number: 110-509 HD/EN 25.05.
Table of Contents Introduction ................................................................................................................................................. 2 Circulating Baths with the MX Temperature Controller ............................................................................ 2 General Safety Information....................................................................................................................... 3 Safety Recommendations...............................
Introduction Thank you for choosing a Circulating Bath with MX Temperature Controller. It is intended for the precise temperature control of suitable liquids in a reservoir. Extremely easy to use and maintain, it combines design innovation with highly intuitive operation to deliver convenient and versatile liquid temperature control for a wide range of applications.
General Safety Information When installed, operated, and maintained according to the directions in this manual and common safety procedures, your Circulating Bath should provide safe and reliable temperature control. Please ensure that all individuals involved in the installation, operation, or maintenance of this Circulating Bath read this manual thoroughly prior to working with the unit. This symbol alerts you to a wide range of potential dangers.
Safety Recommendations To prevent injury to personnel and/or damage to property, always follow your workplace’s safety procedures when operating this equipment. You should also comply with the following safety recommendations: WARNING: • This Circulating Bath is suitable only for use with Class I non-flammable fluids (per DIN 12876-1). • Be aware of the chemical hazards that may be associated with the bath fluid used.
Regulatory Compliance and Testing This equipment is compliant with the European Directive 2002/95/EC and its latest amendments on Restrictions on Hazardous Substances (RoHS) and below the given limits of hazardous substances. ETL Intertek (60 Hz units) UL 61010-1 / CSA C22.2 No. 61010-1 — Safety Requirements for Measurement, Control, and Laboratory Use; Part 1: General Requirements UL 61010A-2-010 / CSA C22.2 No.
Package Contents The items included with your Circulator will vary depending on which model Circulating Bath you purchased. Refrigerating / Heating Bath Resource Disk (with Operator’s Manual) ● Reservoir Lid ● 3-ft. / 0.91 m IEC to IEC Power Cord ● 6-ft. / 1.
Controls and Components MX Controller Backlit Digital Display Heating Actual Bath Temperature Refrigerating Circulating Set Point Temperature Menu Button Up Arrow Button Power Button Down Arrow Button Safety Thermostat (under cover plate) Refrigerating/Heating Baths MX Controller Reservoir Cover Reservoir Drain Valve and Port (behind access panel) Power Switch / Circuit Breaker IEC Power Connection to Mains (on rear of unit) Washable Air Filter (behind access panel) WARNING: To avoid the potential f
Quick-Start Unless otherwise specified, quick-start instructions apply to all models. See Installation & Startup for additional information. Maximum: 1 in / 2.54 cm below the underside of the top deck 1 Fill reservoir with fluid Minimum: 2.6 in. / 6.
5 Enter temperature set point 6 Set safety thermostat once unit reaches set point 110-509 HD/EN ¨ 9
Installation and Startup Your Circulating Bath with MX Temperature Controller is designed to be simple to set-up and install. The only tools required are a flat-head screwdriver and a container for adding water or another suitable fluid to the bath reservoir. General Site Requirements Locate your Circulator on a level surface free from drafts and direct sunlight. Do not place it where there are corrosive fumes, excessive moisture, high room temperatures, or in excessively dusty areas.
External Closed Loop Circulation WARNING: When connecting tubing to an external application, it is the user’s responsibility to make sure that the tubing and fittings connected to the Circulator are suitable for the fluid being used and the temperature range of operation. CAUTION: The Circulator’s bypass tubing is secured to the fluid inlet and outlet connections by high temperature nylon hose clamps, which can be removed by carefully cutting them with diagonal cutters.
Refrigeration Control Connections (Refrigerating/Heating Circulators only) Attach the Refrigeration Control Cable connected to the rear of the Temperature Controller to the Refrigeration Control Connection on the Refrigeration Power Module.
Electrical Power WARNING: The Circulator’s power cord must be connected to a properly grounded electrical receptacle. Make certain that this electrical outlet is the same voltage and frequency as your Circulator. The correct voltage and frequency for your Circulator are indicated on the identification label on the back of the Controller. CAUTION: The use of an extension cord is not recommended. If one is necessary, it must be properly grounded and capable of handling the total wattage of the unit.
Controller Setup Power Press ; all characters and symbols on the LCD will momentarily light. The Circulator will begin running, actual and set point temperatures will be displayed, and the word “SET” will be continuously lit. The circulating symbol will also be lit and the heating or refrigerating symbol may be lit or flashing.
Normal Operation Keys and Controls Power Turns the Circulator’s Temperature Controller ON. Menu Accesses the Temperature Controller’s set-up sub-menus. The items in these sub-menus are used to configure the Controller’s general operational parameters (temperature unit, upper and lower temperature limits, offset calibration, etc.). Up Arrow Used to increase temperature set point and other operational settings/values.
Set-Up Sub-Menus Press the key to access the Temperature Controller’s set-up sub-menus. The to change the current setting / value in the sub-menu. or keys are used Sub-Menu Selection / Range To Change Current Value Temperature unit °C or °F Press Press for °C for °F Offset Calibration -3.0°C to +3.
Selecting the Temperature Unit The temperature units sub-menu (°C / °F) allows you to select the temperature unit in which the actual bath temperature and set point temperature are displayed. The factory default is °C. Appears when in Temperature Units sub-menu To Access: Press the To Change: Press key until °C/°F appears on the display. to select °C; press to select °F. To Accept: Press or allow the LCD to return to the main operational display (approximately 10 seconds).
Setting the Offset Calibration This sub-menu allows you to match the Circulator’s temperature display to an external reference thermometer. A value from -3.0° to +3.0°C may be entered; the factory default is 0.0°C. IMPORTANT: To prevent the Offset Calibration value from being changed unintentionally, the following power down/power up sequence is required to enable the Offset Calibration function. Refrigerating Circulators: 1.
Setting the Low Limit Temperature This sub-menu allows you to limit how low the temperature set point may be set. It also serves as a low limit safety, alerting you if bath temperature falls below the low limit temperature setting. The Low Limit value may be set from -55° to +10°C / -65° to +50°F; the factory default is -50°C / -60°F. To avoid unwanted alarms or shutdowns during regular operation, the Low Limit value should be set at least 5° lower than the selected control temperature.
Setting the High Limit Temperature This sub-menu allows you to limit how high the temperature set point may be set. It also serves as a high limit safety, alerting you if bath temperature rises above the high limit temperature setting. The High Limit value may be set from +40° to +155°C / +100° to +305°F; the factory default is +150°C / +300°F. To avoid an unwanted shutdown during regular operation, the High Limit value should be set at least 5° higher than the selected control temperature.
Adjusting the Auto Cool Temperature This sub-menu is displayed only on Refrigerating / Heating Circulators. It determines the bath temperature at which refrigeration will be activated and permits more precise control when operating at high temperatures as well as more rapid cool downs. For most applications, an Auto Cool set point 15°C above room temperature is recommended. The Auto Cool range is from 1° to 135°C. The factory default is 30°C.
Resetting the Factory Default Values You can return your Circulator to all factory-set defaults as follows: 1. Press the key to turn the Circulator OFF. 2. Turn Mains power OFF by unplugging the power cord from the electrical outlet or (Refrigerating/Heating Circulators) placing the power switch/circuit breaker on the Refrigeration Power Module in the OFF position. 3. Turn Mains power ON while pressing either the or button.
Reservoir Cover Storage Refrigerating/Heating and Heat Only Circulating Baths feature the LidDock® system to eliminate mess when adding fluid or samples to the reservoir. Specially positioned notches in the inner lip of the top deck allow you to stand the reservoir cover up upright over the bath opening, allowing condensate to flow back into the bath.
Display Messages and Alarms Alarm Symbol FAIL POWER (flashing) (flashing) Description Informational Message: Indicates that electrical power was lost during operation. Using the key, turn the Circulator OFF and then back ON. This will clear the message. Warning: The temperature set point is below the Low Limit temperature value. Decrease the Low Limit temperature value or increase the temperature set point. Warning: The temperature set point is above the High Limit temperature value.
Routine Maintenance and Troubleshooting WARNING: Always turn your Circulating Bath OFF and disconnect it from the electrical power outlet before performing any maintenance or service. WARNING: To avoid the potential for burns, allow the Circulating Bath to cool completely before cleaning or performing any maintenance. WARNING: Always drain all fluid from the reservoir before moving or lifting your Circulator.
Checking the Over-Temperature Safety System Your Circulator incorporates over-temperature protection according to IEC 61010. For optimum safety, this system should be checked for proper operation at least every six months. This check must be performed with the unit running. 1. Enter a temperature set point of approximately 50°C and then allow the bath to stabilize at that temperature.
Condenser, Air Vents, and Reusable Filter (Refrigerated Models only) To keep the refrigeration system operating at optimum cooling capacity, the condenser, removable air filter, and all air vents (front, side, back) should be kept free of dust and dirt. Be sure to check them on a regular basis and clean as required. Reusable Filter The reusable filter is easily accessed from the front of the unit by simply removing the access panel.
Temperature Controller Removal and Re-Installation Removal The Temperature Controller on your Circulating Bath is designed to be easily removed from the top deck without the use of special tools. It is removed as follows: 1. Place the tip of a small flat blade screwdriver under the retaining ring locking tab and pry up gently. Locking Tab 2. Rotate the Temperature Controller clockwise until it stops (about 0.75 inch / 1.9 cm). 3.
Re-Installation The top deck of your Circulator incorporates four alignment pins to facilitate positioning of the Temperature Controller when it is being reinstalled. These pins correspond to keyhole slots on the interior of the Circulator’s retaining ring. 1. With the retaining ring locking tab oriented above one of the indents on the top deck, slowly lower the Temperature Controller into the top deck opening until it is resting on top of the positioning pins.
Troubleshooting Chart Problem Possible Causes Corrective Action Unit does not run (Digital Display is blank) No power to unit Check that the electrical cord is secure and connected to an operating electrical outlet. Refrigerated units only Electrical cord between Control Head and Refrigeration Power Module loose or unplugged Power Switch / Circuit Breaker in OFF position Check that the electrical cord is secure and properly connected. Place Power Switch / Circuit Breaker in ON position.
Problem Possible Causes Corrective Action Insufficient cooling Dust build up on air filter or condenser Blocked air ventilation screens Temperature set point is too high Excessive heat load Clean air filter and/or condenser as required.
Technical Information Performance Specifications Operating Temperature Range: Model dependent; see table below Temperature Stability: ±0.07C (±0.13°F) Pump Type: 1-speed pressure 60Hz models 50Hz models Maximum Pressure: 1.8 psi (0.12 bar) 1.5 psi (0.10 bar) Maximum Pressure Flow Rate: 3.4 gpm (12.8 lpm) 2.8 gpm (10.
Reservoir Fluids No matter what bath fluid is selected, it must be chemically compatible with the reservoir and the materials in your Circulator. It must also be suitable for the desired temperature range. WARNING: Do not use a flammable liquid as a bath fluid as a fire hazard may result. WARNING: Always use fluids that satisfy safety, health, and equipment compatibility requirements.
At fluid's high temperature extreme: • Heat loss from vapor adversely affects temperature stability. • To prevent the accumulation of vapors inside the room, the reservoir may need to be placed in a fume hood. • Use a cover and/or floating hollow balls to help prevent heat and vapor loss. • Replenish fluid lost from vapor frequently.
Replacement Parts and Accessories Description Part Number IEC to IEC Power Cord (Refrigerating/Heating Circulators) 14-300-011-03 IEC to Mains Power Cord, U.S.
Warranty Heidolph Instruments provides a three-year warranty on the products described here (with the exception of glass and consumable parts) if registered with enclosed warranty card or via internet (www.heidolph.com). Warranty starts with the date of registration. Without registration warranty starts according to serial number. This warranty covers defects in materials and workmanship. Transit damage is excluded from this warranty.
