Sigma C4 00.0 00.1 00.2 00.3 00.4 , 01.0 01.1 01.2 01.3 01.4

C4 Manual Rev 7.5.2

9.1.3 Local Program Example Using the Special Commands

The following temperature test routine uses program looping commands and the

special port control commands:

Turn chamber or platform (or auxiliary load) on

Do the following loop 5 times

Using probe 2 for control...

Turn compressor on

Use 15 minutes to ramp from ambient to 11.5/C

Hold 11.5 for 20 minutes

Use 1 hour to ramp to -32.3/C

Hold -32.3/C for 1 hour

Turn compressor off

Go to 50/C as quickly as possible

Hold 50/C for 2 ½ hours

Turn chamber or platform (or auxiliary load) off

End program

The following is the exact key sequence for entering this program into the C4

program step memory:

Set the C4 to Program mode by setting the rotary MODE switch to the PROGRAM

position. Press <DISP/CNTL>, then:

Step

Number

Displayed

Step .

Substep

Keys to press Description of entry

00.0 DISP/CNTL Accept default value

00.1 DISP/CNTL Accept default value

00.2 DISP/CNTL Accept default value

00.3 DISP/CNTL Accept default value of 1

00.4 CLEAR/ENTRY 6 ENTER Turn aux/power control port on

01.0 DISP/CNTL Accept default value

01.1 DISP/CNTL Accept default value

01.2 DISP/CNTL Accept default value

01.3 DISP/CNTL Accept default value of 2

01.4 CLEAR/ENTRY 4 ENTER Turn compressor port on