Programming (C.a 1727 Only) - Chauvin Arnoux C.A 1725 Manual De Instrucciones

4.9 PROGRAMMING (C.A 1727 ONLY)

The device lets you program four values to define:
- A low alarm threshold (LO AL).
- A high alarm threshold (HI AL).
- A multiplier coefficient (K).
- A recording interval (SCAN).
A press on the
In the programming mode, the C.A 1727 no longer makes measurements; the bargraph is off, the optical
transmitter is off.
The functions of the keys become those indicated in yellow above each key.
Functions of the keys in
measurement mode
Procedure
The explanations below describe the procedure to follow to program the various memories of the
C.A 1727. These stages are common to all functions: scanning, thresholds, and coefficient K.
The "Alarm thresholds" to "Recording interval" paragraphs describe the features specific to each function.
Before switching the C.A 1727 to programming mode, you must choose, on the rotary switch, the
function of which you wish to program the values.
Pressing the key displays the PRGM symbol, switches off the bargraph, and displays "-----".
The second stage is
the: ; or
The digital display unit then indicates the value contained in the memory, or "-----" if nothing has yet been
programmed (when programming for the first time, or if the last programming disabled this function). At
the same time, the left-hand digit (or dash) flashes.
Programming is on 100,000 points (0 to 99,999), and there are 5 possible positions of the decimal point
for the alarm thresholds (the decimal point is fixed for K and the SCAN interval has no decimal point).
A value is entered in memory as follows:
A/ writing of all digits of the desired value, without taking account of the decimal point.
B/ positioning of the decimal point.
key switches the C.A 1727 into programming mode; PRGM is displayed.
Functions of the keys in
pogramming mode
choosing the function
key.
46
Shift left
Shift right
Increment active digit
Decrement active digit
Program scanning
Program threshold
Program coefficient K
to be programmed, by pressing