WARRANTY
The manufacturer warrants this instrument to be free from defects in
material and workmanship under normal use for one year from the date of
purchase (one year for electrical components). It does not cover damage
resulting from abuse or misuse, repairs or alterations performed by other
than authorized repair technicians, or damage occurring in transit. If you
have questions concerning this product or warranty, contact the dealer from
whom it was purchased. For warranty service, equipment should be well
packed to avoid damage in transit, preferably in original box and packing.
Include your complete return address and telephone number as well as a
description of the difficulty, date and place of purchase, and ship to the
address below. It will be repaired or replaced at no charge and returned. If
misuse, alterations, accident or abnormal conditions of operation caused
failure, an estimate for repairs will be provided for your approval prior to
work being performed
.
Premiere Service Department
7241 Gabe Court Manassas, VA 20109
(703) 330-1413
C: press System Menu SET key to the last para meter C setting, this is
the reserved parameter . don’t change its value and the default is 20.0.
AL: press SET key to the last parameter C setting, this i s the reserved
parameter .It’s high temperature alarm setting, The default value is 10.0
After setting press SET key to switch to normal working mode.
Notice
1. Do not heat empty surface.
2. Do not touch hot surface and use gloves or tongs when moving
heated containers. Clean up any spills promptly.
3. Keep out of reach of children.
Please contact your dealer if the machine fails to operate properly.
Dealer: _________________________________________
Date purchased: __________________________________
Stirring Hot Plate
Model 88-1
USER’S MANUAL
Read this manual before using this instrument and
retain this document for future reference.
Introduction
Stirring Hot Plate has the ability to heat and stir simultaneously or you can
perform each function separately. It is easy to operate and its speed is
adjustable. The thermostatic magnetic stirrer can carry on precise stable
agitation of fluid and is especially applicable for use with samples in small
size. It is a necessary tool for chemical engineering, medical hygiene,
environmental protection and educational research.
Technical Specification of Model 88-1
Heating power: 250W
Stirring power: 30W
Speed range: start-up----2000r/min
Plate area: Ф150mm
Temperature control range: Room Temperature ----300°C
Working power: AC110V 60Hz (may be manufactured to 220V upon
request)
Usage Description
1. The unit should be placed on a sturdy level surface. The working
surface can not be too smooth (such as ceramic tile). Do not block the
vents on the sides.
2. Do not heat or stir volatile materials.
3. The speed should be adjusted from low speed to high speed slowly.
Operation
Put the container which is filled with liquid on the working plate. And Put
the temperature probe into the container. Do not heat plastic containers.
1. Plug in the power cord to a grounded electrical socket and turn on the
power switch (Stir switch should be in “off” position.)
2. To Stir: Be sure the speed adjustment knob is at the lowest setting
before flipping the Stir switch to “on” position. Use the Speed dial to
slowly increase speed as desired.
3. Temperature Setting:
System Menu ▲
SET ▼
1、 Temperature Setting
Press and hold the SET key to switch to the temperature setting mode，
the digit twinkles indicate you could change the value by pressing up key
“▲” to increase or down key“▼” to decrease. Press down constantly
to increase or decrease continuously to the value you need. Press the SET
key to exit the setting mode when finish setting.
2、Parameter Setting
Sc: Press and Hole the System menu key for 3 seconds to switch into
the inner parameter setting mode. It displays the Sc means the error
between the measured value and the actual value. Press the setting key it
shows the twinkling default value 0.0，you could change the value by press
up or down key(the same operation as below) range:-9.9~9.0
E: After setting Sc value press the System menu key to adjust the next
parameter E. It means the lead of breakpoint control (take effect when the P
value is zero) the default value is 0.5.
P: Press the System Menu SET key again switch to the third parameter
P. it means the P parameter of PID control. It means the control TEMP
=setting TEMP-(10/P). When you set 50 degree and the P value is 10 it
means the PID will begin control at 49 degree, and when the P value is 4 it
will begin control at 47.5 degree. If the overshoot is too big please decrease
the P value and if the temperature increases too slowly or couldn’t reach the
setting temperature please increase the P value.
Note: when the P value is zero, the PID will be disabled. It will use
the breakpoint control. It begins to control when the temperature
is low than (setting temperature- E value).
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