Procedure; Activating The Alarms (Alarm); Storing And Retrieving Measurements (Mem/Mr); Storing Results (Mem) - Chauvin Arnoux C.A 6250 Manual De Instrucciones

Various values of temperature coefficients :
metal
Aluminium
Copper
Carbon (0-1850 °C)
Iron
3.3.2

Procedure

first check the programming of the t°amb, alpha, and t°ref parameters (see § 3.6.) and the
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connections.
press the R(θ) key
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the R(θ) symbol and the metal selected are displayed steadily on the display unit.
the small display unit indicates the temperature t°ref then the temperature t°amb.
once the measurement has been made, the instrument displays:
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- on the small display unit, depending on the programming:
the programmed ambient temperature
or the temperature measured by the temperature sensor
or "- - - -" if the temperature sensor is validated but not connected or incorrectly
connected, or if the temperature measured is out of bounds (-10 °C to +55 °C).
- on the large display unit:
the compensated resistance value
Remark: Err 10 is displayed if a temperature is out of bounds or if the leads of the sensor become
disconnected.
3.4 ACTIVATING THE ALARMS
The alarms are activated by successive presses on the MR key (
The instrument displays :
alarm 1 and its direction of activation.
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then alarm 2 and its direction of activation.
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then alarm 1 and alarm 2 and their directions of activation.
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The values of the alarms and their direction of activation are programmed in advance by the user in
SET-UP (see § 3.6)
3.5 STORING AND RETRIEVING MEASUREMENTS (MEM / MR)
3.5.1

Storing results (MEM)

Measurement results can be stored at memory addresses identified by an object number (OBJ) and
a test number (TEST).
An object is a "box" in which 99 tests can be stored. An object can thus represent a device on which a
number of measurements/tests are to be performed.
Procedure:
1. When the measurement is over (result held on the display unit), press the MEM key.
The MEM symbol flashes and the small display unit indicates the first free OBJ:TEST number (e.g.
02 : 01). The main display unit then indicates FrEE.
The OBJ no. is that of the last measurement stored, but the TEST no. is incremented by 1.
OBJ:TEST can be changed at any time using the4and 56 keys.
If the user selects a memory address that is already occupied, OCC appears on the main display
unit.
If a new OBJ is selected, TEST is set to 01.
metal
per °C
Lead
0,0043
Mercury
0,00393
Platinium
-0,00025
Zinc
0,0050
33
per °C
0,0043
0,00090
0,0038
0,0037
+ R(θ)).