Honeywell chart recorder question

[carl_e]

Input 1 is still the return temperature* but Pen 1 is no longer displaying Input 1* Pen 1 is now displaying the results of the Input algorithm

In Honeywell terminology* the result of the INP ALG is PV 1* a Pen Value* in this case Pen Value 1.

The Upper display shows other Pen Values* where each available pen is assigned a function.

By default:
Pen 1 = Input 1
Pen 2 = Input 2
Pen 3 = Input 3
Pen 4 = Input 4

Enabling INP ALG results in a calculation which uses PV 1 (pen value 1)* displayed in the Upper display* replacing the former PV1 = Input 1. Now Pen 1 = BTU when INP ALG is enabled.

The Lower Disp button cycles through a long list of items whose values are displayed in the lower display. Each input is identified with 3 characters: IN1* IN2* IN3* IN4 and its value.

So* it appears that the BTU calc is now in the upper display* but you should be able to find each of the input values by using the Lower Disp button to view the values in turn.

For some reason the comma character is not functional* replaced by the asterisk (the star *)