Hart Scientific’s Model 3125 Detachable Hot Plate is controlled by Hart Scien
tific’s 2200 controller and uses a precision platinum RTD as a sensor with a
heater to control the temperature. The 3125 and 2200 are a matched set. Both
of them have the same serial number.
The controller display shows the temperature and also the set-point tempera
ture. The temperature may be set to any temperature within the range of 35°C
to 400°C in 0.01°C or °F increments by using the buttons on the control panel.
The controller’s multiple fault protection devices insure user and instrument
safety and protection.
The Detachable Hot Plate (see Figure 1) consists of a controlled plate made of
aluminum. A heater is attached to the bottom with an RTD temperature sensor
used to control it. The housing consists of a top cover and a base, which serve
as a clamp and strain relief point for the wiring. The Reference Well is avail
able for use with a 3/16-inch diameter probe, which may be used to check the
plate temperature. This well is used to calibrate the system.
1150/2300W
10 A
115/230V
115V
1
50/60 Hz
HEATER
2
3
PROBE
4
RS-232
115/230VAC 50/60 Hz
2200 Controller Back Panel
3125 Hot Plate Assembly
Figure 1 Controller and Hotplate Assembly
3125Manual Rev. 8C15011
Page 7
1 Introduction
2Manual Rev. 8C1501Hart Scientific
Page 8
2 Specifications and Environmental Conditions
2Specifications and Environmental
Conditions
2.1Specifications
Operating Range35°C to 400°C (95°F to 752°F)
Accuracy±0.5°C to 200°C
±1.0°C to 400°C
Traceable to NIST
Resolution0.01°C or °F
Readout°C or °F switchable
Stability±0.2°C to 200°C
±0.3°C to 400°C
ControllerHart Model 2200 Microprocessor based with
RS232 serial port
SensorRTD
Heater325 Watt, solid state controlled
Plate (accessible)3.8 inch diameter
Weight4.5 lb. (2.1 kg)
2.2Environmental Conditions
Although the instrument has been designed for optimum durability and trou
ble-free operation, it must be handled with care. The instrument should not be
operated in an excessively dusty or dirty environment. The instrument oper
ates safely under the following conditions:
•
temperature range: 5-40°C (41-104°F)
•
ambient relative humidity: 15-50%
•
pressure: 75kPa-106kPa
•
mains voltage within ±10% of nominal
•
vibrations in the calibration environment should be minimized
•
altitude does not effect the performance or safety of the unit
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-
2.3Warranty
Hart Scientific, Inc. (Hart) warrants this product to be free from defects in ma
terial and workmanship under normal use and service for a period as stated in
our current product catalog from the date of shipment. This warranty extends
only to the original purchaser and shall not apply to any product which, in
3125Manual Rev. 8C15013
-
Page 9
2 Specifications and Environmental Conditions
Hart’s sole opinion, has been subject to misuse, alteration, abuse or abnormal
conditions of operation or handling.
Software is warranted to operate in accordance with its programmed instruc
tions on appropriate Hart products. It is not warranted to be error free. Hart’s
obligation under this warranty is limited to repair or replacement of a product,
which is returned to Hart within the warranty period and is determined, upon
examination by Hart, to be defective. If Hart determines that the defect or
mal-function has been caused by misuse, alteration, abuse or abnormal condi
tions or operation or handling, Hart will repair the product and bill the pur
chaser for the reasonable cost of repair.
To exercise this warranty, the purchaser must forward the product after calling
or writing Hart for authorization. Hart assumes NO risk for in-transit damage.
For service or assistance, please contact the manufacturer.
Hart Scientific, Inc.
799 East Utah Valley Drive
American Fork, UT 84003-9775
Phone: (801) 763-1600
Fax: (801) 763-1010
E-mail: support@hartscientific.com
THE FOREGOING WARRANTY IS PURCHASER’S SOLE AND EXCLUSIVE
REMEDY AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY
OR MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE
OR USE. HART SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSS WHETHER IN
CONTRACT, TORT, OR OTHERWISE.
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-
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4Manual Rev. 8C1501Hart Scientific
Page 10
3Safety Guidelines
Operate the instrument in room temperatures between 5-50°C
•
(41-122°F). Allow sufficient air circulation by leaving at least 15 cm (6
inches) of space between the instrument and nearby objects. Overhead
clearance 45 cm (18 inches) to allow for safe and easy placement and re
moval of sensors for calibration.
The hot plate is a precision instrument. Although it has been designed for
•
optimum durability and trouble free operation, it must be handled with
care. The instrument should not be operated in excessively dusty or dirty
environments or near liquids thatmay present an electrical shock hazard.
Do not operate near flammable materials.
DO NOT use fluids to clean off the surface.
•
The instrument generates extreme temperatures. Precautions must be
•
takentoprevent personalinjuryordamage toobjects.Sensorsmay beex
tremely hot when removed from the instrument. Cautiously handle
sensors to prevent personal injury. Carefully place sensors on a heat re
sistant surface or rack until they are at room temperature. Allow the sur
face to cool before transporting the instrument.
3 Safety Guidelines
-
-
-
-
Never introduce any foreign material onto the surface plate. Fluids, etc.
•
can leak into the instrument causing damage.
• Theunit is fused throughthe2200 Controller.Refertothe2200Controller
manual for fuse information.
3125Manual Rev. 8C15015
Page 11
3 Safety Guidelines
6Manual Rev. 8C1501Hart Scientific
Page 12
4Troubleshooting
4 Troubleshooting
If problems arise while operating the 3125, this section provides some sugges
tions that may help you solve the problem. Opening the unit without contacting
Hart Scientific Customer Service may void the warranty.
Unit will not heat
Check the power cord to see if it is connected to the 2200 controller.
•
Out of calibration
Ensure that the 2200 and 3125 are a matched set. Check the serial num
•
bertothe hotplateon boththehotplate andthe2200 controller.These two
serial numbers must match.