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Summary of Contents for Thermo Scientific 3881
- Page 1 Model 3881, 3883, 3887 and 3889 Forma Blood Bank Refrigerators Operating and Maintenance Manual 7033881 Rev. 1...
- Page 2 Preface Preface MANUAL NUMBER 7033881 IN-3285 5/15/06 Revised refrigeration schematic IN-3285 4/27/06 Release 6 (models 3881 and 3889) ECR/ECN DATE DESCRIPTION Thermo Scientific Thermo Scientific 7033881 Blood Bank...
- Page 3 Material in this manual is for information purposes only. The contents and the product it describes are subject to change without notice. Thermo Scientific makes no representations or warranties with respect to this manual. In no event shall Thermo be held liable for any damages, direct or incidental, arising out of or related to the use of this manual.
- Page 4 This product is required to comply with the European Union’s Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is marked with the WEEE symbol. Thermo Scientific has contracted with one or more recycling/disposal companies in each EU Member State European Country, and this product should be disposed of or recycled through them.
- Page 5 We can also provide you with a quotation on our Extended Warranty for your Thermo Scientific products. Whatever Thermo Scientific products you need or use, we will be happy to discuss your applications. If you are experiencing technical problems, working together, we will help you locate the problem and, chances are, correct it yourself...over the telephone without a service...
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Page 6: Table Of Contents
Silencing the Audible Alarm ......3 - 7 Testing the Performance Alarm Battery ..... .3 - 7 Thermo Scientific 7033881 Blood Bank... - Page 7 Electrical Schematics ........9 - 1 Warranty Information Section 10 7033881 Blood Bank Thermo Scientific...
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Page 8: Receiving
On F.O.B. Destination shipments, Thermo’s and the carrier’s responsibility ends when your Receiving Department personnel sign a free and clear delivery receipt. Whenever possible, Thermo will assist in settling claims for loss or in- transit damage. Thermo Scientific 7033881 Blood Bank... -
Page 10: Installation And Start-Up
Installation and Start-Up Section 2 Models 3881/3883 (120V, 60Hz) and 3887/3889 (230V, 50Hz) are Blood Bank Refrigerators with built-in, over/under temperature alarm systems and 7-day chart recorders as required by regulatory agencies for whole blood storage. The Blood Bank Refrigerator provides consistent, reliable protection of products at a safe 4°C. -
Page 11: Location And Installation
Battery circuit board (part number 400116). Refer to Figure 2-4. Note This battery is shipped in the Performance Alarm/ Monitor and must be connected before connecting the unit to AC power. ▲ 7033881 Blood Bank Thermo Scientific... -
Page 12: Connecting The Back-Up Battery
The circuit board is replaced by inserting the plastic pins completely into their holes and pushing the top of the fastener inward until it “clicks.” The battery pack is recyclable and should be disposed of accordingly. Thermo Scientific 7033881 Blood Bank... -
Page 13: Connecting To Power
The remote alarm relay may be wired to a central remote alarm location or to an independent alarm system. Remote Alarm Relay Connection to the refrigerator is through an RJ-11 terminal block located on the back of the cabinet. Pin identifications are shown in Figure 2-5. 7033881 Blood Bank Thermo Scientific... -
Page 14: Connecting The Under And Over Temp Relays
Normally Closed contacts are also part of the Alarm/Monitor design. However, these contacts must be wired directly to the circuit board. Figure 2-7 identifies the connector blocks mounted along the bottom edge of the board. Thermo Scientific 7033881 Blood Bank... - Page 15 A hole with grommet is located on the rear of the cabinet adjacent to the RJ-11 connectors to allow for passing through the alarm system wiring. Temp Relays (cont.) Figure 2-7. Under and Over Temp Relays Figure 2-8. RS232 and Remote Alarm Location 7033881 Blood Bank Thermo Scientific...
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Page 16: Installing The Temperature Probes
Note If the battery is weak or not connected, the green LED will flash. If power is lost to the cabinet, the LED will also flash as the refrigerator goes into the alarm state. ▲ Figure 2-10. Chart Recorder Thermo Scientific 7033881 Blood Bank... -
Page 17: Installing The Chart Paper
Program 2 0°C to 60°C Program 3 -100°C to 39°C Program 4 -5°C to 50°C Program 5 0°C to 100°C Program 6 -100°C to -200°C Program 7 -115°C to 50°C Program 8 -10°C to 70°C 7033881 Blood Bank Thermo Scientific... -
Page 18: Calibrating The Chart Recorder
If an adjustment is necessary, press either the #1 or #2 button to move the pen left or right. The button must be held about five seconds before the pen begins to move. Release the button when the pen matches the thermometer. Thermo Scientific 7033881 Blood Bank... -
Page 20: Operation
LCD line above them, and change with the various operating functions of the alarm/monitor. The SCROLL button is used when programming the unit. Note The center button is used to silence the audible alarm. ▲ Thermo Scientific 7033881 Blood Bank... -
Page 21: Setting The High And Low Temp Alarm Setpoints
Scroll button as shown in Figure 3-3. Releasing the left button and pressing the Scroll button two more times will show the date and time screen. The month will be flashing 7033881 Blood Bank Thermo Scientific... - Page 22 Step the hours up or down and press Scroll. The Minutes will begin flashing. Set the minutes and press Scroll. The display will return to the Temp 1 screen. Chart 3-1 on the following page illustrates the date/time setting sequence. Thermo Scientific 7033881 Blood Bank...
- Page 23 Section 3 Operation 7033881 Blood Bank Thermo Scientific...
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Page 24: Interpreting The Alarm Information
3:02 a.m. on January 1. The temperature returned within the upper and lower limits at 3:26 a.m. The third screen shows that the maximum or minimum temperature reached during the alarm condition was 3.5°C. Figure 3-5. Figure 3-6. Alarm Information Thermo Scientific 7033881 Blood Bank... -
Page 25: Calibrating The Temp Probes
Yes will cause the display to step downward. The alarm will sound and the Undertemperature light will flash. Pressing the center button below the LCD will silence the alarm. Pressing Scroll will extinguish the flashing light and return the display to the Temp 1 screen. 7033881 Blood Bank Thermo Scientific... -
Page 26: If The Probe Tests Fail
400116. Refer to Figure 3-9 and to the installation instructions in Section 2. Figure 3-9. Perform the alarm test at intervals recommended by the laboratory or the bolld bank industry. Thermo Scientific 7033881 Blood Bank... - Page 27 Section 3 Operation 7033881 Blood Bank Thermo Scientific...
- Page 28 Section 3 Operation Thermo Scientific 7033881 Blood Bank...
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Page 30: Maintenance
▲ installation To remove the drawer, pull the drawer all the way out until it stops. Depress the release tabs on both tracks (see Figure 4-1). Figure 4-1. Drawer Assembly Thermo Scientific 7033881 Blood Bank... - Page 31 3. The center section of each slide needs to be pushed in to the back of the track. Refer to Figure 4-2. 4. Align the tracks on the drawer with the slides on each side of the unit. 5. Slide the drawer in. Figure 4-2. Drawer Slide 7033881 Blood Bank Thermo Scientific...
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Page 32: Troubleshooting And Service
Alarm point may need adjusted. Low temperature indicator and audible alarm Probe or control board may be defective. are activated intermittently or continuously; chamber temperature is relatively stable at Alarm points may need adjustment. 4°C. Possible loose probe wires. Thermo Scientific 7033881 Blood Bank... - Page 33 Refrigeration system temperature controller is defective. Insufficient refrigerant (leak). Defective compressor. Compressor starting relay is defective. Insufficient voltage. Dirty condenser. Insufficient ventilation at top of cabinet. 7033881 Blood Bank Thermo Scientific...
- Page 34 Normal position without the alarm system activating; temperature pilot lights (normal, Performance monitor system transformer (cir- high, low) are out. cuit board power) is defective. Possible defective probe or loose probe wires. Thermo Scientific 7033881 Blood Bank...
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Page 36: Specifications
Specifications Section 6 Model 3881 3889 Construction Exterior: Cold-rolled steel, powder coated Interior: Stainless steel Insulation: High density foamed-in-place urethane Temperature Range Factory pre-set at +4°C Exterior Dimensions 29.8”W x 74.3” H x 28.0” F-B (75.7cm x 188.7cm x 71.1cm) Capacity 19.7 cu. -
Page 38: Spare Parts
Spare Parts Section 7 Table 7-1. Parts for Models 3881 and 3889 Quantity Stock# Description 890138 8 oz. bottle 34054 Silicone stopper, #6, 1-1/4 940561 Right angle thermometer 231179 Temp control 205149 Condensing unit, 1/4 HP, R404A 209016 Dryer 180003... -
Page 40: Refrigeration Schematics
Section 8 Refrigeration Schematics Thermo Scientific 7033881 Blood Bank 8 -1... - Page 41 Section 8 Refrigeration Schematics 8 -2 7033881 Blood Bank Thermo Scientific...
- Page 42 Section 9 Electrical Schematics Thermo Scientific 7033881 Blood Bank 9 -1...
- Page 43 Section 9 Electrical Schematics 9 -2 7033881 Blood Bank Thermo Scientific...
- Page 44 Section 9 Electrical Schematics Thermo Scientific 7033881 Blood Bank 9 -3...
- Page 46 Section 9 Electrical Schematics Thermo Scientific 7033881 Blood Bank 9 -4...
- Page 47 Section 9 Electrical Schematics 9 -5 7033881 Blood Bank Thermo Scientific...
- Page 48 Section 9 Electrical Schematics Thermo Scientific 7033881 Blood Bank 9 -6...
- Page 50 Section 9 Electrical Schematics Thermo Scientific 7033881 Blood Bank 9 -7...
- Page 51 Section 9 Electrical Schematics 9 -8 7033881 Blood Bank Thermo Scientific...
- Page 52 Section 9 Electrical Schematics Thermo Scientific 7033881 Blood Bank 9 -9...
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- Page 55 Section 9 Electrical Schematics 9 -11 7033881 Blood Bank Thermo Scientific...
- Page 56 Section 9 Electrical Schematics Thermo Scientific 7033881 Blood Bank 9 -12...
- Page 58 Section 10 Warranty Thermo Scientific 7033881 Blood Bank 10-1...
- Page 59 Section 10 Warranty 10-2 7033881 Blood Bank Thermo Scientific...
- Page 60 Thermo Scientific Controlled Environment Equipment 401 Millcreek Road Marietta, Ohio 45750 United States www.thermo.com...
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