Instruction Manual MODEL AM-756
14/20
6-8
Group
Menu Display Parameter Name
Setting Range
Default
Value
Description
Display
Conditions
Settings Protect
OFF: Display all
PATN: No pattern display
COND: No condition display
ALL: All displays off
OFF
Hides parameters of set group.
* For parameter groupings, please refer to "Parameter
Settings Group".
-
Set Value
Changes Protect
OFF: Set values can be changed
ON: Set values cannot be changed
OFF
Enables/disables changes to set parameter values. Even if set
value change is disabled, display of the values is possible.
-
Digital Zero
Protect
OFF: Digital Zero enabled
ON: Digital Zero disabled
OFF
Limits the digital zero function of the front panel keys.
*The external control digital zero function is not limited.
-
Maximum
Minimum Values
Protect
OFF: No limit
CLR: Limit clear function
CNG: Limit display switching
OFF
Limits switching between maximum and minimum values
and value reset.
-
6-9
グループ
Menu Display
Parameter Name
Setting Range
Description
Display Conditions
Process Value
-199999 to 199999
Indicates the measurement value before PH
* Display only. Settings cannot be made.
-
Input Unit
DV: Direct voltage input
A: Direct current input
DB: Process input
Indicates the input unit currently connected.
* Display only. Settings cannot be made.
-
Comparative
Output Unit
NONE: No comparative output
PHOTO: Photocoupler output
RELAY: Relay output
Indicates the comparative output unit currently
connected.
* Display only. Settings cannot be made.
-
Optional Unit
NONE: No optional unit
C IN: Control terminal
BCD: BCD output
A.O: Analog output
Indicates the optional unit currently connected.
* Display only. Settings cannot be made.
-
External Control
Terminals
1 to 4
0: OFF, 1: ON
4th bit: R:RESET
3rd bit: PSEL0
2nd bit: PSEL1
1st bit: PSEL2
Indicates the status of the external control terminal.
* Display only. Settings cannot be made.
* PSEL2 is permanently OFF during analog output.
Option: Any other
than NO
External Control
Terminals
5 to 7
0: OFF, 1: ON
3rd bit: S/H
2nd bit: PH
1st bit: DZ
7 Function List
7-1 Measurement
7-1-1 Input
(1)
Input Range (
,
,
Parameters)
Input Set
Value
Input
Range
Possible Display
Range
Resolution
11
±0.2V
Approx. ±0.21V
±199999
12
±2V
Approx. ±2.1V
13
±20V
Approx. ±21V
14
±200V
Approx. ±210V
23
±20mA
Approx. ±21mA
24
±200mA
Approx. ±210mA
1V
±5V
Approx. ±5.25V
2A
±20mA
Approx. ±21mA
N.B.) Please do not connect unused terminals.
(2)
Over range Warning
The main display will read
or
under the following
conditions.
･
The value input is outside the possible display range.
･
The measured value exceeds ±199999.
7-1-2 Scaling Function
Measurement values can be obtained using input values converted into
arbitrary display values. Scales are converted by using the scaling setting of
the currently selected pattern.
･
Parameters Used:
to
,
to
,
to
,
to
･
Calculation Formula
The scaling calculation formula is as follows.
Measurement
value
FSC - FIN
OFS - OIN
× +
(
)
OFS - OIN ×
FSC
－
FIN
OFS - OIN
=
Input
value
* Negative scaling settings (reverse gradient) are also possible.
7-1-3 Digital Limiter Function
This function sets the upper and lower limits of the displayable range.
It is limited by the digital limit values of the presently selected pattern.
When the measurement value is greater than the set upper limit, the displayed
value is limited by the set upper limit.
Upper Parameters:
to
When the measurement value is less than the set lower limit, the displayed
value is limited by the set lower limit.
Lower Parameters:
to
7-2 Noise Elimination
7-2-1 Averaging Frequency
Measurement data obtained at 50 times/ sec is averaged at an interval set by
the sampling rate. Measurement values, comparative output, analog output and
BCD output are updated with their average values.
Parameter Used:
7-2-2 Moving Average
Data which has been averaged by using the sampling rate interval is in turn
averaged by the quantity of set data. With every sampling, the oldest data is
discarded and new data is obtained and averaged.
Parameter Used:
7-3 Measurement Value Correction
7-3-1 Digital Zero
(1)
Digital Zero
The current measurement value can be shifted to zero by using either the
external control terminal or front panel keys. When digital zero is on, the
digital zero function is active, and when digital zero is off, the device runs on
normal operation. When the digital zero function is on, the function message
[DZ] illuminates, enabling visual confirmation of the operating status.
