Chauvin Arnoux C.A 6255 Manuale utente
C.A 6255 MICROHMETER
READ the user manual carefully
COMPLY the precautions for use
FUNCTIONS OF THE KEYS
The secondary functions of the keys (written in yellow Italics below each key) can be accessed by
a short press on the yellow key, then on the key concerned.
Activate the secondary function of a keys. The symbol appears on the screen.
Before starting the measurement, select the desired measurement mode: inductive mode,
noninductive mode or non-inductive mode with automatic triggering.
Select the metal for the temperature compensation calculation: Cu, Al, or Other metal
Activate/deactivate the temperature compensation function to calculate the resistance
measured at a temperature other than the measurement temperature.
Activate/deactivate the alarms. The directions and high or low triggering values are
adjusted in SET-UP
Store the measurement at an address identified by an object number (OBJ) and a test
number (TEST). Two presses on MEM are required = confirmation of the location (can be
changed using the ▲▼ and ►keys), then storage.
Retrieve stored data (this function is independent of the setting of the switch) except in
the OFF and SET-UP positions. The data are viewed using the ▲▼ and ►keys. The
R(θ), and ALARM keys can be used.
In SET-UP mode, select a function or increment a flashing parameter.
In SET-UP mode, select a function or decrement a flashing parameter
Select the parameter to be modified (in wraparound mode, from left to right). In SET-UP
mode, access the adjustments of a function.
In SET-UP mode, shift the decimal point and select the unit.
Immediate printing of the measurement to a serial printer. If the temperature
compensation function has been activated, the calculated result and the temperatures
concerned are also printed.
Print stored data to a serial printer.
1st press: the starting OBJ:TEST number appears on the secondary display and the
ending number on the main display (they can be changed using the ▲▼ and ► keys);
press PRINT again to start printing.
Activate/deactivate the backlighting of the display unit.
Activate and adjust the sound level/deactivate the audible signal.
Parameter to be
modified Key Display
Main Secondary Symbol
(1st push)
RS
Communication Prnt rS -
(2nd push)
BUZZ
Buzzer sound level
- BUZZ
(3epush)
EdSn
Display of serial no. Number Edsn -
(4epush)
EdPP
Display of
program no.
Number EdPP -
(5epush)
Lan9
Printing language L9F Lan9 -
(6epush)
trEF
Reference temp.
Value trEF °C
(7epush)
tAnb
Ambient temp.
nPrb tAnb °C
(8epush)
nEtA
Metal selection Value nEtA
Cu or AI or
Other metal
(9epush)
ALPH
Other metal coeff.
Coeff.
value
ALPH Other metal
(10epush)
dE9
Temperature unit
dE9c dE9 -
(11epush)
ALAr
Alarms (values and
directions)
Value ALAr ALARM +
(12epush)
LI9H
Duration of
baclighting T = 1 LI9ht -
(13epush)
nEn
Erasure of memory
dEL nEn -
Value Changing of values
Prnt / OFF / tri9 / PC / ut100
+ rate - type of communication : successive presses on
- speed regulation: then
Low / hight or OFF - successive presses on
- -
- -
Fr / 9b - press on
-10 … 55°C - press on to change the digit
- press on to change the value of the digit
Prb or nPrb
if nPrb : -10 … 55°C
- presence or absence of sensor
- if nPrb : then - press on to change the digit
- press on to change the value of
the digit
Cu or AI or Other metal - successive presses on
0 … 100,00 (10-3 /°C) - press on to change the digit
- press on to change the value of the digit
dE9c (°C) or dE9F (°F) - press on
ALARM 1 or 2 / or /
5mΩto 2500Ω- choice of parameter to change : successive presses on
- modification of the parameter:
1 mn / 5 mn / 10 mn or OFF - press on
dEL or dEL O
(all memory or object) - press on then
LIST OF CODED ERRORS
Err 1 Battery charge too low
Err 2 internal problem
Err 3 Impossible to measure battery charge
Err 4 Impossible to measure temperature
Err 5 Internal temperature too high - Let the instrument cool down
Err 6 Measuring current not established
Err 7 Measurement out of range
Err 8 Internal problem
Err 9 Measurement cycle stopped
Err 10 Temperature sensor incorrectly connected or missing
Err 11 Current-circuit wires incorrectly connected
Err 12 Voltage-circuit wires incorrectly connected or measured resistance too high
Err 13 Residual voltage too high
Err 21 Adjustment out of bounds
Err 22 Measured value out of bounds
Err 23 Edition out of bounds
Err 24 Cannot write to back-up memory
Err 25 Cannot read in back-up memory
Err 26 Memory full
Err 27 Memory empty: no data available
Err 28 Memory check problem
Err 29 Object or test number incorrect
Warning:
If error message 2, 3, 4, or 8 appears, the instrument must be switched off and sent to a
qualified organization for repair.
695533A02_Ed1_05/2017
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