Chauvin Arnoux CA 650 Notice De Fonctionnement page 79

Desc: The description about a specific channel on the display.
Log Method: The method of logging measured data. Select the column, and then
choose the Log method of Instant, Average, Minimum or Maximum data.
Disable: Select Disable while a specific channel is not required at this time.
Instant: logging in the last measured data at the sampling interval
Average: logging in averaged measured data at the sampling interval
Minimum: logging in minimum measured data at the sampling interval
Maximum: logging in maximum measured data at the sampling interval
Log Speed: It is the logging speed (recording speed) of measured data. Select Log
Speed column, then choose 1, 2, 5, 10, 30, 60 or 120 seconds.
Offset: It is offset value to correct the sensor error.
Gain: It is a multiplier to correct the sensor error.
The correct value = ( the process value + offset ) x gain
Sensor: It displays automatically the setup input of V, mV, mA, T/C ( J, K, T, E, B, R,
S, N, and L ), PT100, and JPT100. The default setting is 4-20mA if no other input
specified.
Unit: The engineering unit of input.
Range: Various input ranges can be set for voltage and current. Normally, it sets 0-1,
1-5, 0-5 or 0-10 V for the voltage, and set 0-20 or 4-20mA for the current.
Scale Unit: Defines the scale unit.
Scale Low: Defines the low scale with decimal if necessary . For instance, input 0-10
V, the Scale Low can be set up with value 0.00 to be correspondent to low range 0 V.
Scale High: Defines the high scale with decimal if necessary . For instance input 0-
10 V, the Scale High can be set up with value 100.00 to be correspondent to high range
10 V.
Event
The Event is frequently used for Alarm purpose. Event can also be used for digital
output DO, Timer, Totalizer, Counter or Report.
Type: There are various types of H, L, HH, LL, R or r to be selected for job or Alarm
purpose.
H: High limit. When the process is over high limit, the alarm or job is actuated.
L: Low limit. Any the process is lower than low limit, the alarm or job is actuated
HH: High high limit, to set up another limit higher than high limit for double warning.
LL: Low low limit, to set up another limit lower than low limit for double warning.
R: Increasing rate of change. The job or alarm is actuated when the rate of increasing
process value is greater than the specified rate time interval. For example, when the
Setpoint is set to 100_1S, if the process is increasing greater than the value 100 in 1
second, then job or alarm will be actuated.
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