Creating A User Program - OHAUS Guardian 7000 Serie Installations-, Betriebs- Und Wartungsanweisungen

Guardian 7000 Series

2.9 Creating a User Program

The User Programs feature allows the user to load, store, delete, and run a series of heating and stirring functions
from a programmable text file from a USB storage device.
1. To create a User Program, the user will need access to a computer and a USB storage device.
2. On the computer, create a text (.txt) file and name it "PROG.txt".
a) Although the unit can store up to 5 programs at a time, only 1 program can be loaded at a time.
If the text file is named anything other than "PROG.txt", the unit will not recognize it and the program will
b)
not be loaded.
3. Within the text file, the program can be up to 5 steps separated by line breaks.
4. Each step must follow the format listed below.
a) If any digit is outside of the listed range or if any digit (including decimals and commas) is missing, then
the unit will display an error message ("ERR") during loading.
Temperature
0-5 0-9 0-9 . 0-9
Temperature:
•
The temperature must have a number in each digit as well as the decimal in between the 3rd and 4th digit.
•
The temperature cannot exceed the temperature limit of the unit. (Round Top: 380°C, 7x7: 500°C, 10x10:
500°C)
•
To keep the heater off during a step, input "000.0" for the temperature.
Speed:
•
The speed must also have a number in each digit.
•
For all units the speed must be between 0000 and 1600.
HH, MM, SS:
•
Likewise the timer must have a number in each digit and must be between 00,00,01 and 99,59,59.
Timer Start:
•
If 0, the timer will start to countdown at the beginning of the step.
•
If 1, the timer will start to countdown as soon as the heater has reached the desired temperature setting.
EXAMPLE:
•
Step 1: The unit will heat without stirring up to 200°C. Once the heater reaches 200°C the timer will begin
to countdown from 11 minutes and 30 seconds. Once the timer reaches 00:00, the unit will beep and
proceed to Step 2.
•
Step 2: The unit will heat up to 230°C and stir at 1200 rpm for 1 hour and 30 minutes. The timer will begin
to countdown at the beginning of the step.
•
Step 3: The unit will turn off the heater but continue to stir at 800 rpm for 2 hours. Once the timer reaches
00:00, the unit will turn off the stirrer.
Speed
, 0-1 0-9 0-9 0-9
200.0,0000,00,11,30,1
230.0,1200,01,30,00,0
000.0,0800,02,00,00,0
HH
, 0-9 0-9 , 0-5
MM SS
0-9 , 0-5 0-9
EN-21
Timer
Start
, 0-1