Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Summary of Contents for Precision 815
- Page 1 Installation/Service Manual Microprocessor Controlled Low Temperature Incubator Model 815 Precision 170 Marcel Drive Winchester, VA Phone: 540-869-8623 Toll Free: 800-621-8820 FAX: 540-869-8626 Manual P/N 36100114 (34001729) Rev D Dated 15 December, 2004...
- Page 2 CONTENTS AND THE PRODUCT IT DESCRIBES ARE SUBJECT TO CHANGE WITHOUT NOTICE. PRECISION MAKES NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THIS MANUAL. IN NO EVENT SHALL PRECISION BE LIABLE FOR ANY DAMAGES, DIRECT OR INCIDENTAL, ARISING OUT OF OR RELATED TO THE USE OF THIS MANUAL.
- Page 3 REVISION STATUS INDEX DATE AMENDED PAGES NOTES Initial Release 6/99 8/99 Update parts list for new kit #'s 9/01 18-20 Removed dual fans, updated parts list 12/04 18-20 Update for base model FFU2064DW1...
-
Page 4: Table Of Contents
Contents Introduction .......................... 1 Unpacking and Damage ....................... 1 General Information ......................2 Performance Data ........................ 2 Explanation of Controls ......................3 Instrumentation Port ......................5 Installation ..........................6 Operation ..........................7 Servicing ..........................8 Troubleshooting ........................8 Maintenance ........................12 Installation and Operation of the RS232 Option ...................... -
Page 5: Introduction
UNPACKING AND DAMAGE Your satisfaction and safety are important to Save all packing material until unit is put into PRECISION and a complete understanding of this service. This merchandise was carefully packed unit is necessary to attain these objectives. and thoroughly inspected before leaving our factory. -
Page 6: General Information
UPON THE FOLLOWING OPERATING CONDITIONS: PAGE 17). LINE VOLTAGE ....110.5 TO 112.5 AMBIENT TEMPERATURE ... 22.5° TO 24°C The 815 Low Temperature Incubator has been designed to provide the ultimate in temperature Theory of Operation control. The user is assured of dependable and... -
Page 7: Explanation Of Controls
EXPLANATION OF CONTROLS 6) HIGH/LOW LIMIT KEY - This key is used to view the high or low temperature alarm setpoint -Front Panel- The first depression of the key selects the high limit. The second depression selects the low limit. 1) HEATER ON LAMP - The "Heater On"... - Page 8 -Explanation of Auxiliary Panel- On the left side of the incubator control panel there is an auxiliary panel which has the items shown in VOLTAGE SOURCE the figure below. They are described as follows: 1) FUSE - This fuse is in line with the main power cord that comes into the incubator.
-
Page 9: Instrumentation Port
INSTRUMENTATION PORT Located on the chart recorder printed circuit board is an offset potentiometer R3. If for some reason the recorder output voltage does not match the Located on the rear side of the incubator is an temperature as shown in the chart, this instrumentation port for the user to insert sensor potentiometer can be used to tune it in. -
Page 10: Installation
INSTALLATION circuit that will be used for this unit. It is critical that the added current demand and Location other equipment on the circuit not exceed the rating To assure proper ventilation, allow a minimum of of the fuse or circuit breaker in use. 4"... -
Page 11: Operation
OPERATION The CALIBRATE key should be used ONLY to match a stable incubator's actual temperature to Power up by depressing the ON/OFF switch. the calibrated thermometer. Immediately after turning on power, all the segments of the display and all of the indicators Place a calibrated thermometer or the probe of one will be on. -
Page 12: Servicing
Service Organization. Freeze-up or gradual drop in chamber temperature: In any communication with White-Westinghouse or Precision, include the model and serial numbers No air circulation in chamber; inoperative fan (see from both nameplates located near the bottom of Remedy 1) the door opening. - Page 13 Does not reach a high set point temperature: WARNING HAZARDOUS HIGH VOLTAGE CONDITIONS EXIST No air circulation in chamber; inoperative fan (see INSIDE CONTROL PANEL. TURN "OFF" LINE SWITCH ON FRONT PANEL AND UNPLUG LINE Remedy 1) CORD. Low line voltage, less than 110V (see Remedy 9) RTD Temperature Probe (see Remedy 3, Step D Remove all screws that fasten the cover.
- Page 14 to TP2. It should be no less than 4 volts DC. There is another device known as an -Measure the DC voltage across R4, since Optoisolator which serves as the high/low the incubator is not requesting heat, there voltage isolator between the triac and the should be no current flowing through this microprocessor.
- Page 15 If the last two steps are not as stated then Before coming to the conclusion that the probe most likely the CPU board is bad and it will is bad when one of these displays appear, have to be replaced. check the connection of the probe to the circuit -Switch the voltmeter to an "AC Volts"...
-
Page 16: Maintenance
MAINTENANCE are necessary, contact White-Westinghouse or adjust door hinges. See page 8. Excessive line voltage variation: The design of the incubator is such that periodic Incubator will operate satisfactorily over full maintenance is kept to a minimum. No lubrication temperature range (-10°C to 50°C) when line is required. -
Page 17: Installation And Operation Of The Rs232 Option
Connect the other end of the cable to the cable Signal Ground (O V) connector on the RS232 PCB assembly (see sketch). Replace the control panel and secure with the eight (8) screws. TOP VIEW OF CONTROL PANEL To J304 Assy, PCB, 815 CPU #34381002... - Page 18 Setting up the Incubator for Communications The display should change to the following. Again, the number in the display might be Your Incubator will require the selection of 3 different than 0.1, but it will have a decimal parameters for communications: point.
- Page 19 Where: Using the Communications: 10 = Actual Temperature The incubator transmits information on its RS232 -5.0 = Setpoint Temperature Port as long as the status update time interval is 0 = Normal not “0.0.” With Status Display Type = 1 or 2: If you start your communication software with the incubator on, most likely you will see the error(s) Actual Temperature:...
- Page 20 To Change Data: To change the value within the EPROM Version Number: The incubator command type the command code followed by the software version level. new value and ENTER (Return). Status Display Type: Selection of format Example 1: To change Setpoint Temperature to that data is sent to your computer 25.0°C type: T25.0 <CR>...
-
Page 21: Wiring Diagrams
WIRING DIAGRAMS... -
Page 23: Parts Replacement List
PARTS REPLACEMENT LIST DESCRIPTION PART NUMBER ASS'Y , PCB, DISPLAY , 815 34395001 ASS'Y , PCB, 815 CPU 34381002 ASS'Y , PCB, PWR SUP, 815 34394901 ASS'Y , PCB, LIMIT / ALARM 34394601 ASS'Y , PCB, CHART RECORD 34393702 ASS'Y , RTD TEMP. PROBE, 100... -
Page 24: Warranty
(1) year from the date of delivery of the products. Sole obligation of PRECISION shall be to repair or replace at our option, FOB factory or locally, without charge, any part(s) that prove defective within the warranty period, provided the customer notifies PRECISION promptly and in writing of any such defect.