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Isotemp
Gravity Ovens
OV700G (Small)
13-247-725G & -726G
OV701G (Medium)
13-247-737G & -738G
OV702G (Large)
13-247-750G & -751G
LT2042X1 • 3/30/09
Premium Ovens
®
700 Series
Operation Manual
and Parts List
Forced Air Ovens
OV700F (Small)
13-247-725F & -726F
OV701F (Medium)
13-247-737F & -738F
OV702F (Large)
13-247-750F & -751F
Serial Number________________________
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Related Manuals for Fisher Scientific Isotemp OV700G
Summary of Contents for Fisher Scientific Isotemp OV700G
- Page 1 Isotemp Premium Ovens ® 700 Series Operation Manual and Parts List Gravity Ovens Forced Air Ovens OV700G (Small) OV700F (Small) 13-247-725G & -726G 13-247-725F & -726F OV701G (Medium) OV701F (Medium) 13-247-737G & -738G 13-247-737F & -738F OV702G (Large) OV702F (Large) 13-247-750G &...
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Page 2: Table Of Contents
Table of Contents Introduction ................................ 3 Specifications ..............................5 Performance Characteristics ........................5 Electrical Requirements..........................6 Power Requirements ............................6 Chamber Volumes ............................6 Chamber Dimensions ..........................6 Installation ................................7 Selecting a Location ............................7 Unpacking ..............................7 Preparing the Oven ............................8 Power Switch ..............................8 Controls ................................9 Display ................................9 Keypad................................10 Operation ................................11 Safety Precautions ............................11... -
Page 3: Introduction
Introduction Alert Signals Fisher Isotemp 700 Series premium ovens are available in three sizes: small (OV700F and OV700G), medium (OV701F and OV701G) and large (OV702F and OV702G). All ovens provide PID Microprocessor control Warning at operating temperatures ranging from 50°C (122°F) to Warnings alert you to a possibility of per- 275°C (527°F). - Page 4 NTRODUCTION Isotemp ovens incorporate a variety of safety features. A safety backup is built into the controller software: if the primary heater control fails, the backup will maintain con- trol at 5°C above the set point. An alarm LED then indi- cates that the backup controller is operating the oven.
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Page 5: Specifications
Specifications Performance Characteristics Operating Range 50 to 275° Average Uniformity @ 200°* Forced Air Ovens +/-3°C Gravity Ovens +/-4°C Control Resolution 1°C Control Sensitivity +/-0.5°C Recovery Time @ 200°C** OV700F 1.0 minutes OV700G 2.0 minutes OV701F 2.0 minutes OV701G 3.0 minutes OV702F 2.5 minutes OV702G... -
Page 6: Electrical Requirements
PECIFICATIONS Electrical Requirements OV700F ovens 13-247-725F 120 V, 11.5A, 1380W, 60 Hz 13-247-726F 240 V, 5.8A, 1392W, 50/60 Hz OV700G ovens 13-247-725G 120 V, 11A, 1320W, 60Hz 13-247-726G 240 V, 5.5A, 1320W, 50/60Hz OV701F ovens 13-247-737F 120 V, 15.5A, 1860W, 60 Hz 13-247-738F 240 V, 7.8A, 1870W, 50/60 Hz OV701G ovens... -
Page 7: Installation
Installation Selecting a Location Warning The oven requires an area approximately 2 ft. x 2 ft. The Do not use top of oven as a shelf. bench selected must be capable of supporting at least 120 lbs. for the OV700F and OV700G ovens, 130 lbs. for Do not cover oven vent hole. -
Page 8: Preparing The Oven
NSTALLATION Preparing the Oven Caution To prepare the oven for operation, perform the following See data plate on oven for voltage, procedures: current and line frequency specifica- Install the shelf. tions. Check that the power require- ments of the oven will not overload the Make certain all packing material has been circuit to which it will be connected. -
Page 9: Controls
Controls The following sections briefly describe the locations and functions of various display fields and keypad controls. More detailed descriptions are provided, when required, in the operating sections of the manual. Display The 700 Series controller features a bright, one-half inch LED numeric display which reads out the oven tempera- ture. -
Page 10: Keypad
ONTROLS Keypad The 700 Series incorporates a four-key, tactile keypad. The function of each key is discussed individually below. Figure 2: The Keypad Power °C Program Alarm Heat Increase Isotemp Oven Decrease Menu Pressing MENU while holding down the SET key decreases the oven set temperature, as indicated on the temperature display. -
Page 11: Operation
Operation The 700 Series ovens maintain a set temperature until that set temperature is changed. To set a temperature, perform the following: Place the power switch in the ON position. All 8s will flash as a test of the display. Press and hold the SET. -
Page 12: Limit Alarms
PERATION Limit Alarms The 700 Series controllers feature a deviation alarm which alerts the operator and and interrupts heater power whenever the actual oven temperature differs from the set temperature by more than 5°C. The set limit is built in to the controller and cannot be changed. -
Page 13: Display Offsets
PERATION Display Offsets The 700 Series controllers permit the operator to select a display offset Offsets temperature. With a display offset entered, the temperature displayed will be the actual oven temperature (measured at the control thermocouple) plus or minus the display offset selected. Functionally, the off- set feature permits the operator to measure and calibrate such that the display will indicate the temperature at a specific point or zone within the oven. -
Page 14: Service
Service The following sections describe procedures for servicing the 700 Series ovens. The first procedure, Replacing the Caution Door Gasket, may be performed by most users. However, Service procedures requiring all other service procedures involve potential exposure to access to the electronics compart- line voltage. -
Page 15: Replacing The Door Handle
ERVICE replacement gasket around the corners of the liner to avoid bunching up of the gasket materi- Install a Phillips head screw as the gasket rounds each corner to keep the gasket properly stretched. (The screw goes through the liner, pierces the gasket and threads into the door wrap.) After all four corners are secured, install the... -
Page 16: Adjusting The Door Cam
ERVICE Locate nuts securing tongue on cam shaft. Loosen but do not remove outside nut. Adjust inside nut, one full turn clockwise draws door 1/16” closer to cabinet when door is closed. Secure cam tongue in place by tightening out- side nut. -
Page 17: Replacing The Heater
ERVICE Heater Cover Fascia Heater Front Face Electronics Compartment (Open) Bezel Bezel/Control Panel Bottom Screws Replacing the Heater To replace a defective heater, proceed as follows: Disconnect power cord from the electrical outlet. Caution Allow oven to cool to ambient tempera- Remove the two screws that secure the heater ture before attempting repair. -
Page 18: Replacing The Cooling Fan
ERVICE Replacing the Cooling Fan To replace a defective cooling fan, proceed as follows: Complete the procedures discussed in Accessing the Electronics Compartment. Remove the two fan power wires from push-on terminals located on fan housing. Remove the three mounting screws holding the fan in place. -
Page 19: Replacing The Controller
ERVICE mounting nuts located in the oven floor, in front of and in back of the motor shaft. Push an 11/32-in nut driver through the front access hole, gently pushing aside the oven insulation until the nut driver reaches the front motor mounting nut. -
Page 20: Replacing The Solid State Relay
ERVICE Replacing the Solid State Relay Caution To replace a defective solid state relay, proceed as fol- Allow oven to cool to ambient tempera- lows: ture before attempting repair. Complete the procedures discussed in Accessing the Electronics Compartment. Caution Consult the schematic and locate the solid state relay (mounted on bezel). -
Page 21: Replacing The Control Thermocouple
ERVICE Replacing the Control Thermocouple Caution Allow oven to cool to ambient tempera- To replace a defective control thermocouple, proceed as fol- ture before attempting repair. lows: Complete the procedures discussed in Accessing the Electronics Compartment, observing all Caution Caution statements. Service procedures requiring access to the electronics compartment involve Remove thermocouple wires from the controller 6... -
Page 22: Troubleshooting
Troubleshooting This table is intended to assist in resolving oven problems by relating symptoms to their likely causes. The service discussed below is beyond the scope of most users and should be performed by qualified and trained personnel. In the event service is required beyond that available by the customer, contact Fisher Service Dept. -
Page 23: Replacement Parts
Replacement Parts Note Only factory authorized components should be used for repair. Replacements for oven parts may be ordered, by part number, from Fisher Customer Service at 1-800-766-7000. Item Part Number (ref) Line Cord and Plug OV700, OV701, OV702 (120 V) CRX121 OV700, OV701, OV702 (240 V Intʼl) CRX123... -
Page 24: Schematic
Schematic... -
Page 28: Warranty
Warranty Laboratory instruments and equipment manufactured by Fisher Scientific Company L.L.C. – Laboratory Equipment Division (hereinafter called “the Company”) are warranted only as stated below. Subject to the exceptions and upon the conditions specified below, the Company agrees, at its election, to...
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