Fisher Scientific I903C Operation Manual Download Page 1

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Fisher Scientific Isotemp

Ultra Low Temperature Chest Freezers

Operation Manual

7005150 Rev. 0

Isotemp

Summary of Contents for I903C

Page 2: ...1 195763 Retaining Clip 1 370563 Remote Alarm Connector 1 Packing List Important installer and user information A redundant temperature sensing device has been included in this freez er This device is...

Page 3: ...internal adjustments and maintenance must be performed by qualified service personnel s Material in this manual is for information purposes only The contents and the product it describes are subject...

Page 4: ...he equipment that has been put on the market after 13 August 2005 This product is required to comply with the European Union s Waste Electrical Electronic Equipment WEEE Directive 2002 96 EC It is mar...

Page 5: ......

Page 6: ...ctrical Power 1 10 Attach Power Cord 1 10 Set Operating Temperature 1 11 Freezer Start Up 1 11 Set Low Temperature Alarm 1 12 Set High Temperature Alarm 1 12 Run Mode 1 13 Access Code 1 13 Calibrate 2...

Page 7: ...cu ft Models 5 3 Prepare Unit for Storage 5 4 PREVENTIVE MAINTENANCE 5 5 Factory Installed Options 6 1 BUS Back Up System 6 1 Install Injection Assembly 6 1 Install Temperature Probe 6 2 BUS Control P...

Page 8: ...keypad displays and indicators BUS Optional Back Up System panel Optional temperature recorder 7 day one pen or datalogger Keylock keyed lid lock Optional Back Up System Controls Control Panel Option...

Page 9: ...for probe and solenoid RS 232 or RS 485 interface Power Switch mains disconnect Optional BUS battery just behind this panel Optional BUS Connections RS 232 or RS 485 Interface Remote Alarm Contacts an...

Page 10: ...nts Freezer filter location Battery power switch freezer and BUS Thermocouple receptacle Battery mounting bracket Freezer and optional BUS battery Figure 1 5 Probe Cover aaaaaaa aaaaaaa aaaaaaa aaaaaa...

Page 11: ...tch probe access port Figure 1 7 Freezer Left Side Sidecar panel removed O aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa aaaaaaaa...

Page 12: ...e Center displays system status and alarms 8 Scroll for Parameters arrows moves the operator through the choices of the selected mode 9 Up and down arrows Increases or decreases values toggles between...

Page 13: ...shows the selections under each of the modes 1 6 Isotemp ULT Chest Fisher Scientific Section 1 Installation and Start up RUN SETTINGS CALIBRATE CONFIGURATION Default Mode SYSTEM OK Control Set Point C...

Page 14: ...mal operation Alarm messages are displayed if the system detects an alarm condition See Section 4 Alarms To remove the freezer from the pallet use a 7 16 wrench to remove all the bolts securing the sh...

Page 15: ...of the pre tapped holes Isotemp ULT freezers have a data communications interface The factory default setting is RS 232 The wiring identification for the interface is shown in Figure 1 10 One nine pi...

Page 16: ...d secure with the two screws provided The remote alarm provides a NO normally open output a NC normally closed output and COM common The contacts will trip on a power outage high temperature alarm or...

Page 17: ...switch Then open the lower front door by grasping the bottom left corner Locate the battery switch Figure 1 4 and turn it to Standby mode During initial freezer start up the system battery may requir...

Page 18: ...t temperature The freezer is shipped from the factory with a temperature set point of 80 C To change the operating temperature set point 1 Press the Mode key until the Settings indicator lights 2 Pres...

Page 19: ...e high temperature alarm is disabled until the cabinet reaches set point or 12 hours elapse s The low temperature alarm activates an audible visual warning when the freezer chamber temp reaches or dec...

Page 20: ...r the freezer The run mode displays the cabinet temperature on the temperature display and SYSTEM OK on the message center under normal operating conditions In addition the Run mode allows display of...

Page 21: ...for Parameters Press to return to previous parameter Press to return to previous parameter Press to return to previous parameter Low Alarm Set Point High Alarm Set Point Control Set Point To Set Setti...

Page 22: ...ure of the measuring device See Chart 2 1 at the end of this section for more detail 1 Press the Mode key until the Calibrate indicator lights 2 Press the right arrow until CONT T XX X appears in the...

Page 23: ...e to CONFIGURATION mode Numbers decrease Press Enter to save setting Scroll for Parameters Mode SAMPT XX X Scroll for Parameters Press to return to previous parameter Press to return to previous param...

Page 24: ...e the test The temperature on the display will begin to increase until the high alarm set point has been reached The audible alarm will sound and the alarm indicator will flash Press the Silence key t...

Page 25: ...cator will go off The Low Battery light will stay on until a future battery test is performed and passed To test the charge of the BUS battery 1 Press the Mode key until the Configuration indicator li...

Page 26: ...h a letter S Should a high stage alarm occurred it may become necessary to the clear the alarm condition after the condition has been corrected 1 Press the Mode key until the Configuration indicator l...

Page 27: ...splayed in the message center 3 Press Enter The message center will display 485 ADDR XX 4 Press up down arrow to select the appropriate address for the freezer 1 24 5 Press Enter to save This function...

Page 28: ...EST Scroll for Parameters Press to return to previous parameter Press to return to previous parameter Press to return to previous parameter Low Alarm Test High Alarm Test System Battery Test To Config...

Page 29: ...ISP CONTROL CONTROL probe Press Enter to save the setting Mode Scroll for Parameters Press to return to previous parameter Display Temperature SAMPLE probe Mode Scroll for Parameters Mode Press Enter...

Page 30: ...er The audible and visual alarms remain until the freezer is connected to the correct power source Alarms Description Message Delay Ringback Relay No alarm condition exists SYSTEM OK Power Failure POW...

Page 31: ...undependable Communication between the micro board and the display board has been lost Under this condition the visual alarm flashes along with dashes in the temperature display Contact Technical Ser...

Page 32: ...3 Wash the filter material using water and a mild detergent 4 Dry by pressing between two towels 5 Install the filter back into the grille and close the door Depending upon environmental conditions t...

Page 33: ...in and turn power switch on 9 Turn the battery power switch to Standby mode 10 Allow the freezer to operate empty overnight before reloading the product The lid gasket should be cleaned a minimum of...

Page 34: ...rn the battery power switch to Standby mode 9 Close lower panel door 1 Open the front door by grasping the handle and pulling 2 Locate the battery power switch Figure 5 2 Turn the battery power switch...

Page 35: ...tion of the replacement batteries P N 400159 Dispose of the used batteries in a safe manner and in accordance with good environmental practices s Defrost the unit as previously described This prepares...

Page 36: ...freezer to recover to set point between shelves Fill a chest by starting at the left side near the probe Filling with room temperature racks will result in a long pull down time Fill unit with frozen...

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Page 38: ...ed gas into the chamber to keep the chamber temperature within the specified range The BUS operates on an internal 12 volt rechargeable battery which is kept charged during normal operation by the int...

Page 39: ...supply cylinder it must be equipped with a siphon tube s 1 Plug the solenoid probe connector into the BUS connection Loop the probe wire back into the base side car Secure the connector with a screw o...

Page 40: ...rews securing the probe cover see Figure 6 5 5 Route the BUS probe through the probe port approximately 12 Secure the back up probe to the temperature probe using a small tie wrap Figure 6 5 6 Seal ar...

Page 41: ...attery switch to Standby mode to charge both batteries The following section describes the configuration and operation of the BUS Warning When activated this unit injects liquid nitrogen or carbon dio...

Page 42: ...optional back up system is designed to inject CO2 or LN2 into the freezer compartment if the temperature rises above back up system set point To set the BUS set point 1 Press the Mode key until the S...

Page 43: ...er operation 1 Disconnect the AC power to the freezer by turning power switch off 2 As the freezer warms up verify the BUS injects at the desired temperature Displayed temperature may vary by a few de...

Page 44: ...er of flashes to determine the present program setting 4 To change the program setting press the left or right arrows to increase or decrease the count 5 When the desired program number is flashing pr...

Page 45: ...move Release the button when the pen position matches the thermometer Note The felt tip pen on the recorder requires periodic replacement Usually the ink will appear to fade before replacement become...

Page 46: ...Dedicated Circuit 20 Amp Time Delay Breaker 15 Amp 230VAC Dedicated Circuit 15 Amp Time Delay Breaker Shipping Weight 716 lbs 324 8 kg Model 5150 5151 Temperature Range 50 C 58 F to 86 C 123 F in an...

Page 47: ...edicated Circuit 20 Amp Time Delay Breaker 15 Amp 230VAC Dedicated Circuit 15 Amp Time Delay Breaker Shipping Weight 821 lbs 372 4 kg Model 5156 5157 Temperature Range 50 C 58 F to 86 C 123 F in an 18...

Page 48: ...tegory overvoltage category defines the level of transient overvoltage which the instrument is designed to withstand safely It depends on the nature of the electricity supply and its overvoltage prote...

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Page 50: ...tected part of your body to touch objects cooled by liquid nitrogen Such objects may stick fast to the skin and tear the flesh when you attempt to free yourself Use tongs to withdraw objects immersed...

Page 51: ...perties are very similar to those of nitrogen precautions and safe practices for the handling and use of liquid argon are the same as those for liquid nitrogen s Use only containers designed for low t...

Page 52: ...into liquid nitrogen liquid will spout from the top of the tube due to gasification and rapid expansion of liquid inside the tube Warning Nitrogen gas can cause suffocation without warning s Store and...

Page 53: ...lting gas tends to displace the normal air from the area In closed areas excessive amounts of CO2 gas reduce the concentration of oxygen and can result in asphyxiation Because CO2 gas is colorless odo...

Page 54: ...rm and at rest If exposed to liquid or cold gas restore tissue to normal body temperature 98 6 F as rapidly as possible followed by protection of the injured tissue from further damage and infection R...

Page 55: ......

Page 56: ...Fisher Scientific 2000 Park Lane Drive Pittsburgh PA 15275 USA www thermofisher com...

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