Operators Manual Circulating Bath with Digital Controller 110-118 rev.
Table of Contents Section 1. 1.1 General Information Unpacking 1.2 Package Contents 1.3 Description of Circulating Bath 1.4 Specification 1.5 Circulating Bath Fluid Connections To External Apparatus Section 2. 2.1 Operation Location 2.2 Filling the Reservoir 2.3 Reservoir Fluids 2.4 Circulator Pump 2.5 Closed Loop Circulation 2.6 Power 2.7 Setting Temperature 2.8 Setting the High Limit 2.9 Setting the Safety Thermostat 2.10 Operation of Refrigerated Models 2.
Section 1. General Information 1.2 Unpacking Your circulator is shipped in a special carton. Retain the carton and all packing materials until the unit is completely assembled and working properly. Set up and run the unit immediately to confirm proper operation. Beyond one week, your unit may be warranty repaired, but not replaced. If the unit is damaged or does not operate properly, contact the transportation company, file a damage claim and contact the company where your unit was purchased.
1.5 1.6 Specification, continued Model TC-101D TC-201D Dimensions (in.) 143/ 131 /4 (l x w x h) 37.5 x 13.3 x 35.6 33.7 x 36.2 x 33.7 40 x 47.6 x 43.2 Unit Weights 22 lbs (10.0 kg) 28 lbs (12.7 kg) 63 lbs (28.6 kg) Reservoir Volumes 6 liters 10 liters 6 liters Power Requirement 9A @ 115V / 1 / 60Hz 9A @ 115V / 1 / 60Hz 10A @ 115V / 1 / 60Hz (cm) 4 x 81/ 4 x 14 x 141 /4 TC-501D x 131 /4 153/4 x 183/4 x 17 (105V - 125V) (105V - 125V) (105V - 125V) 4.
2.3 Reservoir Fluids Use distilled water for temperatures from 10° to 100°C or a mixture of laboratory grade ethylene glycol and water for temperatures below -20°C. The fluid must be chemically compatible with the reservoir and with 300 series stainless steel in the pump and heater. The fluid must also be able to produce the temperature range desired. For temperature stability of ±.
APPLICATION NOTES At fluid's low temperature extreme: 1. Presence of ice or slush will adversely affect temperature stability. 2. Viscosity above 10 centistokes will adversely affect temperature uniformity. 3. High fluid viscosity and high speed pumping will generate heat in the fluid. At fluid’s temperature above ambient without using refrigeration: 1. Without refrigeration and within 15°C of room temperature the viscosity should be 10 centistokes or less to avoid friction heating of the fluid.
Although stability is better at the external apparatus control point, depending on the insulation and length of tubing used, the accuracy of temperature may be slightly different than the temperature indicated in the reservoir. 2.6 Power Plug the unit into a properly wired, grounded outlet with the same voltage and frequency indicated on the identification label on the back of the unit. With the Power switch OFF, the display indicates standby mode (....).
TO SET THE HIGH LIMIT TEMPERATURE: 2.9 1. Press and hold the SET/ENTER button until the display reads "UNIT". 2. Turn the INCREASE/DECREASE knob until the display reads "HI-L". 3. Press the SET/ENTER button and enter the desired value using the INCREASE/DECREASE knob. 4. Press SET/ENTER or the setting will be accepted after a few seconds.
2.13 Optimization of Controller There is provision to optimize the the controller for special applications. If the temperature stability using factory settings is satisfactory, there is no need to change the controller tuning. Control performance equal to or greater than ± 5°C from the setpoint temperature is not affected by tuning. To achieve close control, tuning may be necessary if you use: a closed loop system of large volume; a fluid other than water; or a viscous fluid.
Section 3. Maintenance 3.1 Heater The heater should be kept clean. If deposits build up on the heater they may be removed by scouring with a non-metallic (plastic) abrasive pad. Do NOT use steel wool, it causes stainless steel to rust. 3.2 Pump Motor The top and bottom bearings are permanently lubricated with a high temperature silicone grease. They should not require lubrication. The pump motor bearings are not available separately.
4.4 No Cooling or Insufficient Cooling • Check the Cooling switch is ON, the cooling light should also be on. • Check for low or high line voltage. • Check for blocked airflow through ventilation screens. • Refrigeration unit should NOT be operated above 32°C ambient temperature, such a condition may cause the refrigeration compressor to temporarily shut down. • Check if heat is being added to the fluid in excess of the refrigeration system’s capacity. 4.
Section 6. After-sale Support All instruments requiring warranty repair must be returned to Brookfield Engineering Laboratories, Inc. or the Brookfield dealer from whom it was purchased. Transportation is at the purchaser's expense. For repair or service in the United States, return to: Brookfield Engineering Labs., Inc. 11 Commerce Boulevard Middleboro, MA 02346 USA Telephone: 508-946-6200 Fax: 508-946-6262 URL: www.brookfield.com service@brookfieldengineering.
Section 7. Warranty Thank you for your purchase. We are confident it will serve you for a long time. Our warranty to you is as follows: The manufacturer agrees to correct for the original user of this product, either by repair, or at the manufacturer’s election, by replacement, any defect which develops after delivery of this product within the period as stated on the warranty card.
