INSTRUCTIONS
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120 Volt Reacti-Therm
3747 N. Meridian Road
P.O. Box 117
Rockford, IL 61105
Heating Module
1887
Safety Information
Your Reacti-Therm™ Heating Module has been designed with function, reliability and safety in mind. It is your
responsibility to install it in conformance with local electrical safety codes. This manual contains important safety
information. You must read this manual carefully and understand its contents prior to the use of this equipment. For safe
operation, please pay attention to the alert indicators throughout the manual.
Intended Use
Do not use this product for anything other than its intended usage.
Warnings
To avoid electrical shock, always:
1. Use a properly grounded electrical outlet of correct voltage and current handling capacity.
(CSA Listed)
0228w
2. Refer servicing to qualified personnel.
3. Replace fuses with those of the same type and rating.
4. Disconnect the unit from the power supply prior to maintenance and servicing.
Alert Signals
Warning
Warnings alert you to a possibility of personal injury.
Caution
Cautions alert you to a possibility of damage to the equipment.
Note
Notes alert you to pertinent facts and conditions.
Telephone: 800-8-PIERCE (800-874-3723) or 815-968-0747 • Fax: 815-968-7316 or 800-842-5007
Internet: http://www.piercenet.com
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Performance Characteristics and Specifications
MODEL UNIT VOLTS HERTZ AMPS
18870 Single Block Heating Module
Operating Range:
Temperature Uniformity:
Temperature Stability:
Ambient Operating Range:
Relative Humidity Operating Range:
Note:
The thermal values are based on temperatures read from a thermometer inserted into the thermometer well of the
Reacti-Block™ Aluminum Block. The thermal values may vary slightly as a result of variable load and aluminum block
size. Block weight will vary with the size and number of holes drilled into each block.
Warning:
Do not use this module in the presence of flammable gases or liquids, ignitable dust or mist-forming materials.
10°C above ambient to 150°C
+/- 0.5°C
+/- 0.5°C
17-27°C
20-80%
The Reacti-Therm™ Heating Module is not explosion-proof. It is primarily designed for aqueous systems.
120 60 0.75
Environmental Conditions
Operating
15°C to 30°C; 10% to 85% relative humidity at 25°C, noncondensing. Installation Category II (over-voltage) in accordance
with IEC 664. Pollution Degree 2 in accordance with IEC 664. Altitude limit: 2,000 meters
Storage
-25°C to 65°C; 10% to 85% relative humidity
Set-up
Before You Begin:
and immediately file a claim if shipping damage is observed. Do not discard packaging material.
Examine carton and Reacti-Therm™ Heating Module for damage before use. Call the delivery carrier
Inspect the condition of the unit before use. Place the instrument in an area free of drafts and heating devices for the most
uniform temperature control of samples. Inefficient or uneven heating may result if the Reacti-Therm™ Heating Module is
placed in a fume hood with a high blower speed. Place a clean Reacti-Block™ Aluminum Block into the well. Place a 35 mm
immersion depth thermometer with a range above 165°C into the thermometer well of the aluminum block.
Start Up:
the power switch to the "on" position. Turn the temperature control knob clockwise to raise the temperature;
counterclockwise to lower the temperature. Adjust the temperature control knob so that the thermometer temperature in the
block will read 100°C when equilibrated. The heat indicator light comes on when the instrument is heating, and the light
flickers as the temperature approaches 100°C. Allow 30 minutes for the temperature to stabilize after the indicator light
begins flickering. This procedure allows you to verify that your Reacti-Therm™ Heating Module is heating properly.
With the power switch in the "off" position, plug the three-prong plug of the power cord into a 120 volt outlet. Flip
Instructions for Use
1. Place the Reacti-Therm™ Heating Module in a thermally stable environment. Avoid locating the instrument near air
vents or heating equipment.
2. Place a Reacti-Block™ Aluminum Block into the heating well of the Reacti-Therm™ Heating Module. The well and the
block should be free of debris and contamination to facilitate even and efficient heating.
3. With the power switch in the "off" position, plug the three-prong plug into a 120 volt outlet.
4. Flip the power switch to the "on" position and turn the temperature control knob clockwise to raise the temperature;
counterclockwise to lower it.
Telephone: 800-8-PIERCE (800-874-3723) or 815-968-0747 • Fax: 815-968-7316 or 800-842-5007
Internet: http://www.piercenet.com
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5. Allow at least 30 minutes for the temperature of the Reacti-Therm™ Heating Module to equilibrate. Actual times
required for the unit to reach equilibrium for a given temperature may vary depending on the block used, room
temperature, etc.
6. Place vials or test tubes containing samples in the heating block.
7. An inert atmosphere can be maintained over samples by using the Reacti-Vap™ Evaporator manifold system, which
provides a flow of an inert gas over samples. See your Pierce Catalog and Handbook for more information.
Safety Tips
1. Allow the unit to cool before cleaning. Unplug the instrument from the 120 volt outlet and remove the heating block
from the well. Keep the block and well clean for future use. To extend the life of the unit, flip the power switch to "off"
when the unit is not in use.
2. The well is not designed to retain liquids. If spillage occurs, liquid should be removed from the well immediately to
prevent damage to electrical components and prevent any possible fire hazard.
3. There is a set of fuses in the power entry module. These will blow if high amperage is applied to the circuit. These fuses
will need to be replaced. If this occurs, an inspection should be made by a qualified service person.
4. Corrosive atmospheres should be avoided to prolong the life of the instrument.
Service and Maintenance
The Reacti-Therm™ Heating Module is relatively service-free. If your module should need maintenance or a replacement
part, contact Pierce. Always disconnect the power plug from the 120 volt outlet before attempting any kind of external
cleaning. Only cleaners that will not harm ferrous or aluminum metal should be used to clean this unit.
Reacti-Therm™ Heating Module Calibration
Equipment Needed:
1 flat-bladed 3 mm tip, 4 1/2” shaft screwdriver
1 Thermometer (Pierce Product No. 18911), Range 0-200°C, 1°C graduations, 225 mm length, immersion depth 35 mm
By adjusting a high trimpot and low trimpot, the temperature of the heating block can be adjusted for the high and low
settings of the heat control knob. Access to the trimpots is through the holes on the right-hand side of the Reacti-Therm™
Heating Module case. Adjusting the trimpots clockwise lowers the temperature and adjusting them counterclockwise
increases the temperature. Allow the temperature of the heating block to equilibrate for 45 minutes after the unit is turned on
and following each additional adjustment.
Warranty
Pierce warrants its products to be free from defects in material and workmanship for a period of one year from date of
purchase. This warranty applies only to defects in original parts or components and does not apply to claims or alleged
product failures resulting from unauthorized repairs, misuse, accidents, corrosion, lack of proper maintenance, failure to
follow Pierce instructions for use or from ordinary wear.
Pierce's obligation under this warranty shall be to repair or replace any products found to be defective. Contact Pierce if this
equipment needs repairs or replacement parts.
Telephone: 800-8-PIERCE (800-874-3723) or 815-968-0747 • Fax: 815-968-7316 or 800-842-5007
Internet: http://www.piercenet.com
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Replacement Parts
Number Description
EL1124X1
PC1123X1
GSX3
PT548X2
RS1124X1
SWX146
CRX72
CS548X2A
PLX76
FSX20
FTX1
JS548X1
KBX43
GS548X1
18911
Reacti-Therm™, Reacti-Block™, Reacti-Vap™ and Reacti-Vial™ are trademarks of Pierce.
©Pierce Chemical Company, 7/2001. Printed in the U.S.A.
Element
Printed circuit board
Silicone adhesive to seal sensor
Well, floor plate
Sensor, thermal
Power switch
Cord set
Well, case assembly
Pilot light w/mounting fastener
Foot screw (4)
Feet (4)
Insulator board for printed circuit control
Knob with set screw, control
Gasket, silicon rubber mounts between well case and floor pit
Thermometer, Range 0-200°C
Telephone: 800-8-PIERCE (800-874-3723) or 815-968-0747 • Fax: 815-968-7316 or 800-842-5007
Internet: http://www.piercenet.com
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