Parker SciLog FilterTec Plus Installation, Operation & Maintenance Instructions Manual

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Parker SciLog FilterTec Plus Installation, Operation & Maintenance Instructions Manual Manual pdf 42 page image

424.2 PROGRAMMABLE R-P: Alarm LimitsSUMMARY: This section describes assigning limiting values for several alarm conditions:Cumulative Volume in milliliters; Hi-Temperature in ⁰C; Lo-Pressure (monitor systemleakage) in psi; Hi-Pressure (Monitor filter plug-up) in psi; Lo-Flow (pump will stop when pumpfeed rate falls below this limit) in ml/min.; Filtrate Quantity in grams.The alarm condition is triggered when the alarm limit is exceeded. Alarms are not mutuallyexclusive. You may select any combination of alarms.For critical alarms you may want the FilterTec Plus pump to stop (Pump Stop). For less criticalalarm conditions you may want to choose an auditory alarm (Alarm Only).PLEASE NOTE: The High and Lo-Pressure alarms are directly related to the Source chosen inSETUP: Press. Sensor, Source, i.e. P1, P2, etc.Use “Up” and “Down” keys to make a selection, then press “Select” to implement thatselection.Cumulative Volume (CV): This alarm setting represents the total volume of process solutionthat is pumped through your filtration device when a balance is not in use. When using abalance, set this limit in the Filtrate Weight Alarm! For example: if you set the CumulativeVolume Alarm to 10,000ml or 10 liters, the FilterTec Plus will either alarm and / or stop thepump when 10 liters has been pumped through the filtration device.Hi-Temp (HT): Used to monitor the temperature of the process solution, this will stop the pumpat the set limit. Default = 35.0 ⁰CLo-Pressure (LP): Typically set 3-5 psi units below the desired pressure setting in the step-by-step instructions. The Lo-Pressure Alarm is triggered when a sudden filter backpressure dropoccurs after rising above this setting. Such a change in the filter backpressure usually indicatesa system leak.Hi-Pressure (HP): For most applications, this represents a critical alarm condition. If this is thecase choose Pump Stop. Make sure you stay below the pressure limit specified by the filtermanufacturer. I.e., if your filter specifies an upper pressure limit of 25 psi, you might set your Hi-Pressure Alarm to 20 psi. The FilterTec Plus will alarm and stop the pump when the filterbackpressure exceeds 20 psi. If you have chosen Pmaintain, this is the value at which thesystem will switch from a Rate control method to the Pressure control method and maintain thatpressure.Lo-Flow (LC): For constant pressure filtration, this represents a critical alarm condition andshould be set to Pump Stop in Lo-Flow Alarm Enable. In this operational mode, the FilterTecPlus will detect any filter backpressure increases in the source pressure sensor (due to slowfilter plug-up) and automatically decrease the rate to maintain the desired pressure setting in thestep-by-step instructions. The Lo-Flow value (ml/min) represents lowest pump rate before thepump shuts down.Filtrate Qty. (FQ): The FilterTec Plus comes with a top-loading balance. Enter the filtratequantity (grams) that you want to collect, and the FilterTec Plus will either alarm or stop thepump when the desired filtrate / permeate weight has been collected. Set this value to zero ifyou do not wish it to trigger during normal use.Note: This alarm must be enabled in at least “alarm only” mode in order for Q1 (FiltrateQuantity) to be obtained or displayed.