Operating Manual - John Morris Scientific

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<strong>Operating</strong> controls and functional elements 6 Adjustable excess temperature protection according to IEC 61010-2-010 7 8 ext Pt100 SERIAL Socket for external measurement and control sensor or external setpoint programming Interface RS232 / RS485: remote control via personal computer 9 Socket: control cable of JULABO refrigerated circulator or output for alarm messages Option: Electronic module Order No. 8 900 100 The circulator automatically recognizes the connected electronic module. 10 Alarm output (for external alarm signal) 11 12 ALARM STAND-BY Standby input (for external emergency switch-off) Programmer input and temperature recorder output REG+E-PROG 13 Connector for supplementary pump or solenoid valve 230 V / max. 1.25 A No control voltage in the -OFF- condition 14 Connector solenoid valve 1. No control voltage in the -OFF- condition 2. Configurable for controlled counter cooling via solenoid valve (only used with Heating Circulators) 15 Fuses (for connectors 13, 14), T1.25A 16a 16b 17a 17b Mains fuses for circulator, T16A Mains fuses for cooling machine, T10A Mains power cable with plug for circulator Mains power cable with plug cooling machine 18 F95, FW95 Built-in mains outlet for connection of circulator (230 V / 16 A) Built-in mains outlet 230 V / 6 A 18 F81, F83, FP88 Built-in mains outlet for connection of circulator (230 V / 10 A) 19 Drain port with drain tap 20 Venting grid, removable 21 22 Pump connectors suction pump pressure pump OUT IN 24 Only for water cooled models: Cooling water OUTLET and INLET 16
Ultra-Low Refrigerated Circulators 2. Safety notes for the user In addition to the safety warnings listed above, warnings are posted throughout the manual. These warnings are designated by an exclamation mark inside an equilateral triangle. „Warning of a dangerous situation (Attention ! Please follow the documentation).“ The danger is described according to an alarm keyword. Read and follow these important instructions. Warning: Describes a possibly highly dangerous situation.. If this is not avoided, serious injury and danger to life could result. Caution: Describes a possibly dangerous situation. If this is not avoided, slight or minor injuries could result. A warning of possible damage can also be contained in the text. Notice: Describes a possibly harmful situation. If this is not avoided, the product or anything in its surroundings can be damaged. 3. Preparations 3.1. Installation Place the unit on an even surface on a pad made of non-flammable material. The place of installation should be large enough and provide sufficient air ventilation to ensure the room does not warm up excessively because of the heat the instrument radiates to the environment. (Max. permissible ambient temperature: 40 °C). With regard to a disturbance in the cooling loop (leakage), the guideline EN 378 prescribes a certain room space to be available for each kg of refrigerant. The necessary amount of refrigerant is specified on the type plate. > For 0.48 kg of refrigerant R404A, a room space of 1 m 3 is required. > For 0.68 kg of refrigerant R23, a room space of 1 m 3 is required. Keep at least 20 cm of open space on the front and rear venting grids. Do not set up the unit in the immediate vicinity of heat sources and do not expose to sun light Before operating the unit after transport, wait about one hour after setting it up. This will allow any oil that has accumulated laterally during transport to flow back down thus ensuring maximum cooling performance of the compressor. OUT IN G½" Only for water cooled models: Ensure circulation of cooling water by connecting the tubing to cooling water inlet and outlet on the rear of the refrigerated circulator. Cooling water connectors: G½" Cooling water see page 13 17
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Ultra-Low Refrigerated Circulators
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Error messages Description -08 INVA
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Operating Manual - John Morris Scientific

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