6.6.4. Selecting Preset
Action
LCD-Display
Description
1.
2.
Press
to
Recall _
Recall 4
This will use the Recall Program
Feature.
Use the number key (1-9) to select the
program number and it will enter into
Recall Preset Mode.
In this example, Preset Program
Number 4 is selected.
3.
Press
Press this key to activate the chosen
preset number.
Note: Whenever to terminate the Preset Program, press "CLEAR" to return to the normal operation.
7. Maintenance
7.1. Recalibration
7.1.1. Introduction
This in-case recalibration is to reduce the difference between the set values and the displayed values
on the LCD Display. You only use the recalibration when the difference is greater than 0.1V for voltage
or 0.01A for current. The whole recalibration for voltages and current takes less than 15 minutes. It is
performed by a proprietary software using regression algorithm. The recalibration software is
compatible to window XP, ME, 2000, 98SE, 98.
7.1.2. Installation of the recalibration software
1. In the installation disk, run
Setup.exe
inside the folder of Re-calibration to install the recalibration
software.
2. Follow the instructions in the setup program.
3. Finally, a SDP Recalibration icon is created in the Program Menu.
7.1.3. Operation Instruction
1. Ensure your PC is Off, connect RS-232 to serial com. port of your PC and the power supply.
2. On your Power Supply, press [
SHIFT
] key, then quickly press [
RS232/485
] key and select RS-232
followed by [
ENTER
] key.
3. Switch on your PC and run the recalibration software.
4. Follow the instructions shown in the software.
7.2. Trouble Shooting
1. Keypad and jog dial do not work.
Check key lock symbol, if in Lock state, unlock unit by [
SHIFT
] then [
LOCK/UNLOCK
] key.
Otherwise switch OFF unit and switch ON again to see if problem persists.
2. No output power
Check output on/off symbol on display. Otherwise, press [
SHIFT
] then [
O/P ON/OFF
].
3. Cannot get high voltage setting within the rated maximum. Check Upper Voltage Limit setting by
[
SHIFT
] then [
0
] key. Reset to rated maximum voltage.
4.
CANCEL
symbol keeps appearing in all keying in operation. Keying in time not fast enough as only
10 seconds are allowed for data input. And 3 seconds for operation mode setting. e.g. lock/unlock,
output on/off & etc.
5.
OUT OF RANGE
keeps appearing
A. Check if setting is within the rated range.
B. If this occurs during voltage setting, please refer to point 3.
8. PC Interface Control User Manual
This section shows how to connect:
A single power supply via RS-232 Interface
2 or above(up to 31) power supplies via RS-485 Interface
-39-
RECALL
9
1
ENTER
