Thermo Scientific Precision 818 Operating instructions

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User Manual
Thermo Scientific Precision
Model 818 Incubator
Plant Growth Chamber - Microprocessor Controlled
Operating and Maintenance Manual 7013758 Rev. 1

Thermo Scientific
Manual Number 7013758
1 40905 6/8/17 Added Chinese info bpg
0 40096 4/3/15 Original - new cabinet size, technical data ccs
ev EC /ECN Date Description By
Preface
Plant Growth Chamber i
Catalog Number (Model) Volume
(L /cu. ft.) Voltage
PR505755L (3759) 504/17.8 120V
PR505750L (3758) 504/17.8 230V
PR505750L-CN 504/17.8 230V
Covered in this manual:

Thermo Scientificii Plant Growth Chamber
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. s
Caution All internal adjustments and maintenance must be performed by qualified service personnel. s
Warning If the growth chamber is not used in the manner specified in this operating manual, the protection
provided by the equipment design may be impaired. s
Warning Hot/warm surface(s) can occur. epending on ambient termperature and settings, surface can become
warm (up to 60°C). s
Material in this manual is for information purposes only. The contents and the product it describes are subject
to change without notice. Thermo Fisher 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.
©2015 Thermo Fisher Scientific. All rights reserved.
Contains Parts and Assemblies
Susceptible to Damage by
Electrostatic Discharge (ESD)
CAUTION

Thermo Scientific Plant Growth Chamber 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.
Marking of electrical and electronic equipment, which applies to electrical and electronic equipment
falling under the irective 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) irective 2002/96/EC. It is marked with the WEEE symbol. Thermo Fisher
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 Scientific products will be available at www.thermoscientific.com.
4Always use the proper protective equipment (clothing, gloves, goggles, etc.)
4Always dissipate extreme cold or heat and wear protective clothing.
4Always follow good hygiene practices.
4Each individual is responsible for his or her own safety.

Thermo Scientificiv Plant Growth Chamber Thermo Scientific
Preface
Do You Need Information or Assistance on
Thermo Scientific Products?
If you do, please contact us 8:00 a.m. to 6:00 p.m. (Eastern Time) at:
1-740-373-4763 Direct
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1-877-213-8051 FAX
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[e-mail] Tech Support Email Address
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Our staff can provide information on pricing and give you quotations. We canSales Support
take your order and provide delivery information on major equipment items or make
arrangements to have your local sales representative contact you. Our products are listed on the
Internet and we can be contacted through our Internet home page.
Our staff can supply technical information about proper setup, operation orService Support
troubleshooting of your equipment. We can fill your needs for spare or replacement parts or
provide you with on-site service. 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
call.
When more extensive service is necessary, we will assist you with direct factory trained
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
Monday through Friday from 8:00 a.m. to 6:00 p.m. Eastern Time. Please contact us by
telephone or fax. If you wish to write, our mailing address is:
Thermo Fisher Scientific (Asheville) LLC
401 Millcreek Road, Box 649
Marietta, OH 45750
International customers, please contact your local Thermo Scientific distributor.

Thermo Scientific Plant Growth Chamber v
Thermo Scientific
Preface
Warranty Notes
Information You Should Know Before Requesting Warranty Service
•Locate the model and serial numbers. A serial tag is located on the unit itself.
• For equipment service or maintenance, or with technical or special application inquiries, contact Technical
Services at 1-800-438-4851 or 1-740-373-4763 (USA and Canada). Outside the USA, contact your local
distributor.
Repairs NOT Covered Under Warranty
• Calibration of control parameters. Nominal calibrations are performed at the factory; typically ±1°C for
temperature, ±1% for gases, and ±5% for humidity. Our service personnel can provide precise calibrations as
a billable service at your location. Calibration after a warranty repair is covered under the warranty.
• Damage resulting from use of improper quality water, chemicals or cleaning agents detrimental to
equipment materials.
• Service calls for improper installation or operating instructions. Corrections to any of the following
are billable services:
1) electrical service connection
2) tubing connections
3) gas regulators
4) gas tanks
5) unit leveling
6) room ventilation
7) adverse ambient temperature fluctuations
8) any repair external to the unit
• Damage resulting from accident, alteration, misuse, abuse, fire, flood, acts of God, or improper
installation.
• Repairs to parts or systems resulting from unauthorized unit modifications.
• Any labor costs other than that specified during the parts and labor warranty period, which may
include additional warranty on CO2sensors, blower motors, water jackets, etc.

Section 4
Section 5
Section 6
Section 8
Section 7
Plant Growth Chamber viThermo Scientific
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Unpacking and amage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
Performance ata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2
Explanation of Front Panel Controls . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Explanation of Auxiliary Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Instrumentation Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Operation and Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
To Lock the Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
To Unlock the Keyboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Adjusting the Intake and Exhaust Ports . . . . . . . . . . . . . . . . . . . . . . 3-10
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1
Symptoms and Possible Causes . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Possible Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
General Cautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
RS232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Setting Up the Incubator for Communication . . . . . . . . . . . . . . . . 6-2
Setting up the Computer for Communication . . . . . . . . . . . . . . . . 6-5
Using the Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Section 1
Section 2
Section 3

Plant Growth Chamber 1-1Thermo Scientific
Section 1 Introduction
Your satisfaction and safety are important to Thermo and a complete
understanding of this unit is necessary to attain these objectives.
Warning As a routine laboratory precaution, always wear safety glasses
when working with this apparatus. s
This product is not intended, nor can it be used, as a sterile or patient
connected device. In addition, this apparatus is not designed for use in
Class I, II or III locations as defined by the National Electrical Code.
Save all packing material until unit is put into service. This merchandise
was carefully packed and thoroughly inspected before leaving our factory.
Responsibility for safe delivery was assumed by the carrier upon acceptance
of the shipment; therefore, claims for loss or damage sustained in transit
must be made upon the carrier by the recipient as follows:
1. Visible Loss or amage: Note any external evidence of loss or damage
on the freight bill, or express receipt, and have it signed by the carrier's
agent. Failure to adequately describe such external evidence of loss or
damage may result in the carrier's refusing to honor your damage
claim. The form required to file such claim will be supplied by the
carrier.
2. Concealed Loss or amage: Concealed loss or damage means loss or
damage which does not become apparent until the merchandise has
been unpacked and inspected. Should either occur, make a written
request for inspection by carrier's agent within fifteen (15) days of the
delivery date; then file a claim with the carrier since the damage is the
carrier's responsibility.
If you follow the above instructions carefully, we will guarantee our full
support of your claim to be compensated for loss or concealed damage.
Note o not - for any reason - return this unit without first obtaining
authorization. In any correspondence to Thermo, please supply the
nameplate data, including catalog number and serial number. s
Unpacking and
Damage

1-2 Plant Growth Chamber Thermo Scientific
Section 1
Introduction
The growth chamber has been commonly referred to as the standard
model 818.
The PR505750L can be converted for operation on 200V or 240V by
changing the input connections to the autotransformers (see wiring
diagram at the end of this manual).
The PR505750L/PR505755L Plant Growth Chamber has been designed
to provide the ultimate in temperature control. The user is assured of
dependable and precise performance through the use of microprocessor
technology in the temperature control circuitry. This growth chamber is
operable in the range of -10° to 50°C without illumination, and +10°C to
+50°C with illumination. These temperature ranges will meet a wide
variety of applications, such as BO determination, general incubation,
as well as the preservation of critical materials.
*with d r illuminati n switch n
General Information
Performance Data
Set
temperature
Uniformity values:
Temperature deviation
from set value, spatial
(3 point measurement)
Uniformity values:
Temperature deviation
from set value, spatial
(27 point measurement
according to DIN 12880)
Temperature stability:
Maximum temperature
difference at chamber
center point (1 point
measurement)
Energy
consumption
Heat up time / Cool
down time from
ambient temperature
according to DIN
12880
Recovery time
after door open-
ing according to
DIN 12880
-10°C ±0.8°C ±1.3°C ≤ ±0.25°C ≤ 0.3 kW ca. 80 min ca. 10 min
+10°C ±0.6°C / ±0.2°C ±1.9°C / ±1.3°C ≤ ±0.25°C ≤ 0.54 kW /
≤ 0.52 kW ca. 54 min.* ca. 4 min.
+20°C ±0.5°C / ±0.2°C ±1.8°C / ±0.9°C ≤ ±0.20°C ≤ 0.55 kW /
≤ 0.49 kW N/A N/A
+50°C ±0.25°C / ±0.15°C ±1.1°C / ±0.9°C ≤ ±0.15°C ≤ 0.56 kW /
≤ 0.51 kW ca. 100 min. * ca. 42 min. *
Note The above performance figures are based upon the following operating conditions:
- Ambient temperature of 22°C, ±3°C
- Line voltage 120V, ±5% (120V version) and 230V, ±5V (230V version)
The following test protocols have been used:
3 point measurement test: 1 thermocouple sensor in center of each shelf - 1 shelf top position, 1 shelf lowest
position, 1 shelf middle position
27 point measurement test: 9 x thermocouples on each shelf - 1 shelf top position, 1 shelf lowest position, 1
shelf middle position (based on IN 12880)
1 point measurement test: 1 thermocouple at chamber center point (temporal temperature variation
characterized by the maximum temperature difference)

The refrigeration system, defrost heater, and air circulating fan are used in
conjunction with a microprocessor controlled proportioning circuit to
achieve sensitive temperature control. An RT (Resistance Temperature
etector) located in the airstream senses any temperature deviation from
the control point, and heat is provided proportionally to maintain the
desired temperature. Regardless of what temperature is being maintained,
the compressor operates continuously. This constant operation alleviates
component failures associated with cycle type operation.
The circulating fan provides even air distribution throughout the chamber
and ensures temperature uniformity.
The program mode of PR505750L/PR505755L plant growth chamber
allows the user to program into memory 2 sets of values for time, setpoint
temperature, and light condition per day for a full week. The following is
an example of a schedule and a pictorial describing the events during that
week. A blank schedule sheet is provided toward the end of the manual for
the user to copy, then document a schedule. It is strongly recommended to
do this before any programming is performed.
The growth chamber leaves the factory with a default schedule as follows:
Hr1 1am Hr2 1pm
Min1 00 Min2 00
Set1 20.0 Set2 20.0
LGT1 OFF LGT2 OFF
Plant Growth Chamber 1-3Thermo Scientific
Section 1
Introduction
Theory of Operation