Instruction Manual MODEL AM-756
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7-6-3 Display Color
This function enables the display color of the main display and comparative
output display (only when comparative output is activated) to be set.
When comparative output is activated, different colors can be set for when
there is and is not a GO judgment.
* The color displayed during relay reset will be the GO judgment color.
Parameter Used:
7-6-4 Status Display
The status of measurement values, the input unit, the comparative output unit,
the option unit and the external control terminal can be checked with the
setting mode.
Parameters Used:
,
,
,
,
,
7-7 Other Functions
7-7-1 Protect
This function enables the setting of whether or not parameters are displayed or
set, the limiting of digital zero functions using the front panel keys and the
maximum and minimum value function limits.
Parameters Used:
,
,
,
7-7-2 Maximum and Minimum Values
(1)
Maximum and Minimum Values
The maximum value, minimum value and the difference between the
maximum and minimum values of the values measured can be confirmed
using maximum and minimum value mode.
For details on displaying this data, please refer to the section entitled "Shifting
to Parameter Setting Mode."
N.B. 1) Maximum and minimum values are for display only. This data
cannot be output using comparative output, analog output or BCD output.
N.B. 2) The maximum displayable value for the difference between the
maximum and minimum values is 199999. Any values exceeding this will
be displayed as 199999.
(2)
Clear Maximum and Minimum Values
Pressing the MODE key in maximum and minimum values mode for longer
than three seconds enables the resumption of maximum and minimum value
measurement with the maximum and minimum values reset.
7-7-3 Set Value Reset
All set values will be initialized when the device is started up while pressing
the ENTER and MODE keys.
Initialization takes approximately 30 seconds. Please do not turn off the
device during initialization. The initialization process cannot be stopped once
activated.
The message "
" will blink on the main display during initialization.
When the initialization of the setting values is complete, the device will revert
to measurement mode.
7-8 Output
7-8-1 BCD (Binary Coded Decimal) Output
(1)
BCD Output
BCD type measurement values are output from this device at intervals set by
the sampling rate.
BCD Output Type
ON or “1”
OFF or “0”
Open collector
Transistor ON
Transistor OFF
TTL
+5V
0V
N.B. 1) The settings of each output are undefined at start up.
N.B. 2) Open collector output is NPN open collector output.
N.B. 3) When the computed result is "WAIT", the data output will be
"000000".
(2)
Over range Signal (OVER)
Output is activated when OVER is displayed.
(3)
Polar Signal (POL)
Output is activated when the measurement value is negative.
(4)
Print Command Signal (PC)
The print command signal is activated when BCD data output is complete and
the output data has been determined. The length of time the signal is activated
differs according to the averaging frequency setting.
Averaging Frequency (times)
1
2
5
10 ,20, 50, 100
PC ON Time (msec)
10
20
50
100
(5)
BCD Enable Input (ENABLE)
When the ENABLE terminal and D.COM are shorted, data output, the over
range signal, the polar signal and print command signal are all deactivated.
ON Voltage: 0 to 0.8V
OFF Voltage: 4.2 to 5V
Input Current: Max. -0.5mA
(6)
BCD Output Logic
The function is used to select BCD Output logic.
* The only signal where logic is not inverted is the PC signal.
BCD Output Type
Logic Setting NEG
Logic Setting POS
Open Collector
Negative logic
Positive logic
(PC: Negative logic)
TTL
Positive logic
Negative logic
(PC: Positive logic)
Parameter Used:
7-8-2 Analog Output
(1)
Analog Output
This function enables output of voltage and current values using measurement
values converted using analog output scaling.
N.B. 1) Analog output is 0% during settings mode or when the measurement
value is "WAIT".
(2)
Analog Output Type
Analog Output Type
Output Range
0% Output
Value
100% Output
Value
0 to 10V
Approx. -0.5 to 10.5V
0V
10V
1 to 5V
Approx. 0.8 to 5.2V
1V
5V
0 to 1V
Approx. -0.05 to 1.05V
0V
1V
4 to 20mA
Approx. 3.2 to 20.8mA
4mA
20mA
N.B. 1) When measurement values fall out of the analog output range, output
will be limited by the analog output range.
N.B. 2) The analog output will output measurement values converted by
analog output scaling even when the OVER message is displayed.
Parameter Used:
(3)
Analog Output Scaling
This function enables the output of arbitrarily converted measurement values
as analog output values. The scale is converted using the analog output scaling
setting of the selected pattern.
･
Calculation Method
The analog output scaling calculation is as follows:
Analog Output Value =
100% Output Value - 0% Output Value
AOHI
－
AOLO
× Measurement Value
+ 0% Output Value
–
AOLO ×
(
100% Output Value - 0% Output Value
AOHI
－
AOLO
)
* Negative (reverse gradient) scaling settings are also possible.
E.g.) 5V output when 16.0000 is displayed, 1V output when -12.0000 is
displayed
A.OUT set value: 1 to 5, AOHI set value: 16.0000, AOLO set Value: -12.0000
Output (V)
Measurement
value
16.0000
5.0
5.2
-13.4000
-12.0000
-19.9999
19.9999
17.4000
0.0000
1.0
0.8