Chapter 4 – Using the F4T Front Panel
TestEquity 101H Temperature/Humidity Chamber
Page 33
Data Logging
Overview
Data Logging can be enabled at any time and will log a user selectable list of data points. While
data logging is enabled, the data log file is stored within either the USB thumb drive or internal
memory. Once the file reaches a specified size (if being transferred automatically), it will be sent
directly to one of three other destinations (USB thumb drive, TFTP server or a Samba server).
The file transfer can also be initiated manually at any time. The file transfer process from
internal memory, whether completed automatically or manually, will move all log files from
internal memory to the selected destination.
Data Logging Menu
Start
Starts the logging of data.
Annotation
Allows you to annotate the log file at a point in time while the data is being logged. For example,
if you wanted to annotate when the door was opened you can create a note which states “door
opened”.
Logged Data Points
This menu indicates which data points have been selected.
Select Data Points
You can select the parameters which get logged. TestEquity has pre-configured the controller to
log the Temperature Set Point, Humidity Set Point, Temperature Process Value, and Humidity
Process Value.
Setup
•
Logging Status:
indicates if recording is active or not.
•
File Name:
any alphanumeric characters, 63 maximum.
Note: A new dedicated file is created when data logging
starts and the filename format will
be “file name” “date stamp” “time stamp”.csv.
•
Log To:
USB (thumb drive) or Internal Memory.
•
Log Interval:
defines the frequency in which the log will be written, 0.1 second to 60
minutes.
•
Available Logging Memory:
(read-only)
•
Available Logging Time:
(read-only) available time determined by the available memory,
logging interval and number of data points that have been selected.
•
File Size Limit:
20MB when using TFTP or Samba, 1GB when using USB.
•
Memory Full Action:
when log to device defined above is full, Overwrite or Stop.
Note: Logging to USB allows for Stop only, when memory is full.
•
Date Format:
MM/DD/YYYY or DD/MM/YYYY.
•
Time Format:
12 or 24 hour clock.
