ProtEX-MAX PD8-7000 Explosion-Proof Temperature Meter Instruction Manual
50
F4 Operation
A digital input, F4, is standard on the meter. This digital input is programmed identically to function keys
F1, F2, and F3. The input is triggered with a contact closure to COM, or with an active low signal. During
operation, F4 operates according to the way it has been programmed in the
Advanced Features – User
menu.
Maximum/Minimum Readings
The max & min readings (peak & valley) reached by the process can be displayed either continuously or
momentary:
1. Display briefly by assigning to the F1-F3 function keys or to the digital inputs in the
User
menu.
2. Display continuously by assigning either display to max/min through the
Display
menu.
Any of the F1-F3 function keys (buttons) and the digital inputs can be programmed to reset the max & min
readings. The meters are set at the factory to display the max reading by pressing the Up arrow/F2 button
and to use the Right arrow/F1 button to access the
Reset
menu.
To display max reading using function key with factory defaults:
1. Press Up arrow/F2 button to display maximum reading since the last reset/power-up.
2. To reset max/min press Right arrow/F1 button to access the Reset menu. The max & min displays
are reset to actual values.
3. Press Menu to exit max/min display reading.
To display max/min readings continuously:
Assign either display to Max (
d Hi
), Min (
d Lo
), or toggle between Max and Min (
d HL
) every 10
seconds.
