Thermo Scientific 3881 Operating instructions

Model 3881, 3883, 3887 and 3889
Forma Blood Bank Refrigerators
Operating and Maintenance Manual 7033881 Rev. 1

Thermo ScientificThermo Scientific
MANUAL NUMBER 7033881
1 IN-3285 5/15/06 Revised refrigeration schematic aks
0 IN-3285 4/27/06 Release 6 (models 3881 and 3889) aks
REV ECR/ECN DATE DESCRIPTION By
Preface
7033881 Blood Bank i
Preface

Thermo Scientificii 7033881 Blood Bank Thermo Scientific
Preface
Important Read this instruction manual. Failure to read, understand and follow the instructions in this manual
may result in damage to the unit, injury to operating personnel, and poor equipment performance. ▲
Caution All internal adjustments and maintenance must be performed by qualified service personnel. ▲
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.
©2003 Thermo Scientific. All rights reserved.

7033881 Blood Bank iii
Preface
Important operating and/or maintenance instructions. Read the accompanying text carefully.
Potential electrical hazards. Only qualified persons should perform procedures associated with this
symbol.
Equipment being maintained or serviced must be turned off and locked off to prevent possible injury.
Hot surface(s) present which may cause burns to unprotected skin, or to materials which may be
damaged by elevated temperatures.
Potential biological hazards - proper protective equipment and procedures must be used when
following instructions associated with this symbol. Reference O.S.H.A. Regulation 1910-1030.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the Directive 2002/96/EC (WEEE) and the 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 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. Further information on
Thermo’s compliance with this directive, the recyclers in your country and information on Thermo
products will be available at www.thermo.com.
✔Always use the proper protective equipment (clothing, gloves, goggles, etc.)
✔Always dissipate extreme cold or heat and wear protective clothing.
✔Always follow good hygiene practices.
✔Each individual is responsible for his or her own safety.
Thermo Scientific

Thermo Scientificiv 7033881 Blood Bank Thermo Scientific
Preface
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technicians or a qualified service organization for on-the-spot repair. If your service need is
covered by the warranty, we will arrange for the unit to be repaired at our expense and to your
satisfaction.
Regardless of your needs, our professional telephone technicians are available to assist you
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7033881 Blood Bank vThermo Scientific
Table of Contents
Receiving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 - 1
Preliminary Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 - 1
Visible Loss or Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 - 1
Responsibility for Shipping Damage . . . . . . . . . . . . . . . . . . . . . . . .1 - 1
Installation and Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 1
Location and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 2
Preparing the Performance Monitor/Alarm . . . . . . . . . . . . . . . . . . .2 - 2
Connecting the back-up battery . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 2
Connecting to Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 4
Connecting RS-232 Communications . . . . . . . . . . . . . . . . . . . . . .2 - 4
RS-232 data format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 4
Connecting the Remote Alarm Relay . . . . . . . . . . . . . . . . . . . . . . .2 - 4
Connecting the Under and Over Temp Relays . . . . . . . . . . . . . . . .2 - 5
Installing the Temperature Probes . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 7
Liquid temperature measurement . . . . . . . . . . . . . . . . . . . . . . . .2 - 7
Preparing the CoBex Chart Recorder . . . . . . . . . . . . . . . . . . . . . . .2 - 7
Installing the chart recorder battery . . . . . . . . . . . . . . . . . . . . . . .2 - 7
Installing the chart paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 7
Replacing the pen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 7
Changing the recorder range . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 7
Calibrating the chart recorder . . . . . . . . . . . . . . . . . . . . . . . . . . .2 - 8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 1
Operating the Performance Alarm/Monitor . . . . . . . . . . . . . . . . . .3 - 1
Reading the Real-time Refrigerator Conditions . . . . . . . . . . . . . . .3 - 2
Setting the High and Low Temp Alarm Setpoints . . . . . . . . . . . . . .3 - 2
Setting the Month, Day, and Time . . . . . . . . . . . . . . . . . . . . . . . . .3 - 2
Interpreting the Alarm Information . . . . . . . . . . . . . . . . . . . . . . . .3 - 5
Calibrating the Temp Probes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 6
Overtemp and Undertemp Alarm Test . . . . . . . . . . . . . . . . . . . . .3 - 6
If the probe tests fail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 7
Silencing the Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 - 7
Testing the Performance Alarm Battery . . . . . . . . . . . . . . . . . . . . . .3 - 7
Section 1
Section 2
Section 3

vi 7033881 Blood Bank Thermo Scientific
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
Condenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
Door Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
Drawer Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
Troubleshooting and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 1
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 - 1
Refrigeration Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 - 1
Electrical Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 1
Warranty Information
Table of Contents
Section 4
Section 5
Section 6
Section 8
Section 7
Section 9
Section 10

7033881 Blood Bank 1-1Thermo Scientific
Section 1 Receiving
This laboratory refrigerator was thoroughly inspected and carefully packed
prior to shipment. All necessary precautions were taken to ensure safe
arrival. Immediately upon receipt, before the unit is moved from the
receiving area, carefully examine the shipment for loss or damage. Unpack
the shipment and inspect both interior and exterior for any in-transit
damage.
If any loss or damage is discovered, note any discrepancies on the delivery
receipt. Call the delivering carrier and request that their representative
perform an inspection. Do not discard any of the packing material and do
not move the shipment from the receiving area.
For products shipped F.O.B. Marietta, Ohio, the responsibility of Thermo
Scientific ends when the merchandise is loaded onto the carrier’s vehicle.
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.
Preliminary
Inspection
Visible Loss or
Damage
Responsibility for
Shipping Damage

7033881 Blood Bank 2-1Thermo Scientific
Section 2 Installation and Start-Up
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.
The refrigerators feature adjustable stainless steel drawers that roll out for
easy access to inventory, high visibility glass doors and fluorescent lights to
provide unrestricted inventory viewing, plus an oversized refrigeration
system giving quick temperature recovery for maximum product protection
after door openings.
Figure 2-1. Blood Bank Refrigerators Models 3881/3889/3883/3887