Ranger 247 Operator's Manual
Also see for 247: Service manual
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Ranger Irrigation Fluid Warming SystemEnglishModel 247 Product Safety FeaturesThe following chart describes the safety alarm features of the Ranger Irrigation Fluid warming unit.note: The difference in over-temperature alarm system cut-off points does not indicate any differencein safety and is simply a result of tighter controller tolerances.The Ranger Irrigation Fluid Warming System is designed with very tight controls to regulate its temperatureto the 41°C set-point. The microprocessor controller measures the temperature at the fluid pathway inside thewarming plate four times every second, making it very responsive to changes in flow rate.ALARM TyPE SET-POINT INDICATION DESCRIPTIONPrimary over-temperaturealarm system48°C LED alternately displays“HI” and temperature,alarm sounds, alarm lightflashes.Primary Alarm: Alarm sounds,controller cuts power to theheaters until temperature fallsbelow 41°C. When heatertemperature drops below 41°C(in a few seconds), audible andvisual alarms stop.Independent back-upover-temperature alarmsystem (cut-off).50°C LED displays thetemperature or has gonedark, alarm sounds.Primary failure. Temperaturewill rise to 50°C within a fewseconds. The safety backupsystem is activated at 50°C andpower is immediately shut offto theheating plates.Under-temperature alarm 33°C LED displays “LO”and temperature, alarmsounds, alarm lightflashes.Heater temperature has fallento 33°C. Alarms will stopwhen temperature rises above33°C. Continue use of unit.ALARM TyPE SET-POINT INDICATION DESCRIPTIONPrimary over-temperaturealarm system48°C LED alternately displays“HI” and temperature,alarm sounds, alarm lightflashes.Primary Alarm: Alarm sounds,controller cuts power to theheaters until temperature fallsbelow 41°C. When heatertemperature drops below 41°C(in a few seconds), audible andvisual alarms stop.Independent back-upover-temperature alarmsystem (cut-off).50°C LED displays thetemperature or has gonedark, alarm sounds.Primary failure. Temperaturewill rise to 50°C within a fewseconds. The safety backupsystem is activated at 50°C andpower is immediately shut offto theheating plates.Under-temperature alarm 33°C LED displays “LO”and temperature, alarmsounds, alarm lightflashes.Heater temperature has fallento 33°C. Alarms will stopwhen temperature rises above33°C. Continue use of unit. |
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