MRC LOM-300 User manual

3, Hagavish st. , Holon,Israel 58817 Tel: [phone], Fax: [phone] [email protected]
Page 3 of 6 pages
Operation manual for
LOM-300

3, Hagavish st. , Holon,Israel 58817 Tel: [phone], Fax: [phone] [email protected]
Page 3 of 6 pages
CONTROLS AND COMPONENTS
OVERVIEW
Temperature controller
Speed controller
Lamp Shaker Cooling Main power
Switch Switch Switch Switch
Remark:
Please turn on the cooling system below 30ºC degrees

3, Hagavish st. , Holon,Israel 58817 Tel: [phone], Fax: [phone] [email protected]
Page 3 of 6 pages
Main Temperature Controller
This control is marked TEMP. CONTROL and consists of the digital display and UP and DOWN arrow pads for inputting set
point temperatures and calibration.
Number
Key
Description / Function
①
PV
To display process value, menu symbol and error code.
②
SV
To display set point value, parameter value or control output value.
③
For setting and calling up parameters.
④
To increase the value of digits.
⑤
To decrease the value of digits.
⑥
R
Revert /STOP/Restart Timer (For machine with timer use only)
⑦
C
Process Unit Indicator- Celsius
⑧
ALM
Indicator
Over-Heat Temperature.
Lights on when the set temperature is over 5
℃, and turns off the
heater.
⑨
Output
Indicator
Control output lamp 1.
Light on when heater is activated
⑩
MAN
Lamp flashes during Manual Mode operates
○
11
COMM
Communication indicator
○
12
TUNE
Lamp flashes during auto-tuning operates
○
13
Lock indicator
○
14
MV&TIME
MV&TIME Indicator

3, Hagavish st. , Holon,Israel 58817 Tel: [phone], Fax: [phone] [email protected]
Page 6 of 6 pages
Calibrating the Main Temperature Control (OFFSET)
1. Press several times scroll to the parameter PASS. Set the PASS value to1000
2. Press and hold the key until the setup Menu page is obtained. Then, press
key to scroll to the parameter.
3. Press key several times to scroll to the parameter OFTL to calibration low
value. Send your low signal to the sensor input of the controller, then press and
release the key. If the process value (the upper display) is different from the
input signal, the user can use and to
change the OFTL value (the lower
display) until the process value is equal to the value the user needs. Press and hold
the key for 5 seconds to complete the low point calibration. A similar procedure
is applied for high scale calibration.
The two points OFTL and OFTH construct a straight line. For the purpose of
accuracy, it is best to change the value same on the two points as possible.

3, Hagavish st. , Holon,Israel 58817 Tel: [phone], Fax: [phone] [email protected]
Page 6 of 6 pages
PID Auto tuning (AT)
The P, I and D terms need to be "tuned" to suit the dynamics of the process being controlled.
Temperature control using digital PID controllers have automatic auto-tune functions. During the
auto-tune period the PID controller controls the power to the process and measures the rate of
change, overshoot and response time of the plant. This is often based on the Zeigler-Nichols
method of calculating controller term values. Once the auto-tune period is completed the P, I &D
values are stored and used by the PID controller.
We recommend doing this AUTO TUNE if there is a temperature overshooting above your set
point
1. Press several times scroll to the parameter PASS. Set the PASS value to1000
2. Press and hold until appears on the display then release.
3. Press and hold at least 5 seconds. The TUNE indicator will begin to flash and the auto-
tuning procedure is beginning.
After the Auto-Tuning process is completed, the TUNE indicator will stop flashing and the unit will
revert to PID control by using its new PID values. The PID values obtained are stored in
nonvolatile memory.

3, Hagavish st. , Holon,Israel 58817 Tel: [phone], Fax: [phone] [email protected]
Page 6 of 6 pages
Speed and Time control panel
Key Description / Function
Start/Stop Indicator lamp. Lamp lights up when platform starts to turn and flashes
when it stops turning.
START
STOP Start and Stop
Right arrow key
Used to shift to another position be it a digit or parameter during programming.
Up arrow key
Used to increase the value of a digit
Down arrow key
Used to decrease the value of a digit
SET Used to lock in the set time and speed
ENTER Used to proceed to the next step in programming
MODE Shows the segment of the program (1-9 segments)
SPEED Shows the speed of rotation.
The lamp lights up and thearrow above it shows the direction of rotation
HOUR/MIN Shows the hours and minutes desired to be set and during a run, the time
remaining.
C The set value of C shows the desired number ofprogrammed segments to be run
sequentially or continuously.

3, Hagavish st. , Holon,Israel 58817 Tel: [phone], Fax: [phone] [email protected]
Page 6 of 6 pages
Circuit diagram