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System Monitoring
Hct ion
BEEF
MMM
Hot ion
OFEM ACT-BIT
ENDLINE
Edit File Eun Chait?
RI
Store
readings
CYSOHY
Humber of
scans™
=
ENDLINE
Imterwals
HHIMM: 25
Dizplagi BOE Abort DFG]
7-30
The limit action menu appears. Use the
key to select
JFEH HCT<BIT as the action.
Select channel Oas the actuator channel. Whenever the
temperature of the bath rises above 25.5°C, the HP-71
will open actuator channel O on the HP 3421A, which
turns off the heater relay. Thus, the bath temperature is
maintained between
the
control limits of
24.5 and
25.5°C. If the control system fails, the HP-71 will beep
when the temperature goes outside the range 24 to 26°C.
The program gives you the option of another limit test.
Press [N|.
Once the setup is completed, the main menu reappears.
Press [R] to begin the monitor session.
The program asks if you wish to store data periodically.
Press
to select the data storage option.
The program prompts for the name of the data file in
which to store the readings.
The program prompts for the number of scans to store in
the data file. Enter == to store 32 scans.
You are prompted to enter the interval between scans.
Enter Eik12 15% EI to store readings every 15 minutes.
This display appears until the 32 scans have been stored.
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