Operating Manual - John Morris Scientific

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<strong>Manual</strong> operation Recommendation: Set the excess temperature protection >SafeTemp< at 5 to 10 °C above the working temperature setpoint. Warning: The excess temperature protection >SafeTemp< should be set at least 25 °C below the fire point of the bath fluid used. In the event of wrong setting there is a fire hazard! We disclaim all liability for damage caused by wrong settings! Warn-Type: >Warning< or >Alarm< For the two menu items >OverTemp< and >SubTemp< choose between a warning message being signaled or a complete shutdown of the main functional elements such as heater and circulating pump being effected. OverTemperature: SubTemperature: If for a sensitive temperature application task adherence to a working temperature value >Setpoint< is to be supervised, then set high and low temperature warning values. In the example below, the >Setpoint< of 85 °C is surrounded by the values >OverTemp< 87 °C and >SubTemp< 83 °C. The electronics immediately registers when the actual temperature attains a temperature out of the limits and it follows a reaction according to what is set in the menu item >Warn-TypeWarning< An audible warning (interval tone) sounds and a meassage appears on the VFD COMFORT-DISPLAY. OverTemp SubTemp XXXXX WARNING CODE 03 XXXXX WARNING CODE 04 Warn-Type: >Alarm< A complete shutdown of heater and circulating pump is effected. An audible alarm (continuous tone) sounds and a message appears on the VFD COMFORT-DISPLAY. OverTemp SubTemp XXXXX ALARM CODE 03 XXXXX ALARM CODE 04 Press for help on the LCD. Actual temperature above high temperature value. Actual temperature below low temperature value. 28
Ultra-Low Refrigerated Circulators Setpoint3 85.0°C OverTemp 87.0°C SubTemp 83.0°C The warning functions are only triggered when the actual bath temperature, after start from the „OFF“ or „rOFF“ mode, lies within the set limits for 3 seconds. Setting range: 20 °C ... 320 °C SafeTemperature: Indicated is the cut-out value set with a screwdriver on the excess temperature protection device. This safety installation is independent of the control circuit. When the temperature of the bath fluid has reached the safety temperature, a complete shutdown of the heater and pump is effected. The alarm is indicated by optical and audible signals (continuous tone). The following error message appears on the VFD COMFORT-DISPLAY: XXXXX ALARM CODE 14 A L A R M ! IntAct: 24.60°C Safety circuit alarm Press for help on the LCD Working temperature exceeds the adjusted safety temperature. SafeSens: Indicated is the temperature value of the safety sensor. 29
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Ultra-Low Refrigerated Circulators
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Operating Manual - John Morris Scientific

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