![]() ![]() Always turn the unit OFF and disconnect Mains power before performing any maintenance or service. Never operate the unit with a damaged power cord. Make certain that the outlet is the same voltage and frequency as your unit. You should also comply with the following safety recommendations: Always connect the power cord on this unit to a grounded (3-prong) power outlet. 2Ĥ Safety Recommendations To prevent injury to personnel and/or damage to property, always follow your workplace s safety procedures when operating this equipment. Proper operation and maintenance is the user s responsibility. Read all instructions pertaining to safety, set-up, and operation. This symbol indicates a protective conductor terminal. It DOES NOT fully disconnect the unit from the power supply. This symbol on the Power Switch indicates that it places the unit in a standby mode. These symbols on the Power Switch / Circuit Breaker indicate that they place the main power supply ON / OFF. This symbol indicates alternating current. This symbol marks information that is particularly important. This symbol advises you of danger from electricity or electric shock. This symbol alerts you to wide range of potential dangers. Please ensure that all individuals involved in the installation, operation, or maintenance of this unit read this manual thoroughly prior to working with the unit. General Information General Safety Information When installed, operated, and maintained according to the directions in this manual and common safety procedures, your Chiller should provide safe and reliable heat removal. All product names, trademarks and registered trademarks are property of their respective owners. Wetted parts within the recirculation system are brass, copper, stainless steel, EPDM rubber, Alcryn, nylon, PVC, and polyethylene. The Chiller is equipped with either a magnetic drive centrifugal pump or a turbine pump. As a result, temperature stability is greatly enhanced and compressor life extended. To optimize cooling efficiency and performance, this sophisticated Chiller also features a modulated refrigeration system. It features a microprocessor-based controller, digital temperature display ( C or F), and simple operation and maintenance. 9 High Temperature Limit (H-#) Low Temperature Limit (L-#) Auto-Refrigeration Temperature (A #) Specific Heat (P.#) Communications Baud Rate (PC#) Temperature Calibration (C #.#) Password (Pd00) Enabling/Disabling the Local Lockout (LLO) Display, Error and Fault Messages Routine Maintenance and Troubleshooting Magnetic Drive Centrifugal Pump Condenser, Air Vents, and Reusable Filter Fluid Level Temperature Calibration Cleaning Exterior Surfaces Troubleshooting Technical Information Hz Compact Chiller Specifications Hz Compact Chiller Specifications General Information & Specifications RS232 Serial Communications (Optional) Equipment Disposal (WEEE Directive) Service and Technical Support Replacement Parts and Accessories Warrantyģ Introduction The Cole-Parmer Polystat Low-Temperature Benchtop Chiller provides cooling power for demanding applications and serves as an economical alternative to tap water cooling systems. 9 Displaying and Adjusting the Set Point. 9 Selecting the Temperature Unit ( C or F). 5 Ambient Temperature and Relative Humidity. Whats Included: 120/230 VAC power adapter with communications cable 32929-89 and NIST-traceable calibration report supplied by the manufacturer.1 User Manual Cole-Parmer Polystat Low-Temperature Benchtop Chillers Model No, ,, , ,Ģ Table of Contents Introduction. For portable flow metering applications, order the battery pack listed under accessories. Order set point control modules separately from the table. Flow set point is established with keypad, the optional set point control module, a 0 to 5 V signal, or an RS-232 input signal. Flow controllers feature an integrated PID to direct the unit’s response to process changes. The 0 to 5 VDC output allows transmission of the flow value to a remote display, recorder, or controller regulating a valve or pump. An integrated keypad around the display is all that is required to program the unit for service. As compared to thermal mass technologies, the LFE design provides an ultrafast response within 10 milliseconds and offers “instant on” with no warm-up time. Because the flow element makes the flow stream laminar, placement in the process does not require straight pipe runs upstream or downstream of the meter, greatly simplifying installation. These meters measure flow via pressure drop across a laminar flow element (LFE). Models with 4 to 20 mA output or totalizer are available. ![]() 100 to 1 turndown with ranges of 1 SCCM full-scale up to 1000 SLPM.Measure 30 standard gases-user selectable from display.Accuracy of ☐.8% of reading ☐.2% full-scale repeatability of ☐.2%.Versatility and high accuracy from a laminar-based mass flow controller.
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