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EM-9501-B Rev.6
• Low-end cutout
Input signal below the preset cutout value is forcibly cut to 0. Typically used to avoid negative reading. Set for the three low-
est digits of the scaled range (disregarding the decimal point).
• Automatic return time to Measuring Mode
The display goes back automatically to Measuring Mode if the front buttons are left untouched for the specified time period
while it is in one of the setting modes (except the loop test output mode).
With this value set to 0, the display must always be exited manually from the setting mode.
• Transition time to Lockout Setting Mode
The display goes to Lockout Setting Mode only when the designated buttons are pressed for the specified time duration.
• Manual sub display reset
When the sub display shows one of the alarm setpoints, it is reset (display turns off) normally after ‘Automatic return time to
Measuring Mode’ has been elapsed. Choose ‘ON’ with ‘Manual sub display reset’ if you do not want the automatic action.
• P output
P output can be assigned to external output instead of one of the alarm points (HH, H, L, LL).
• Latching
Alarm trip is normally reset automatically when ‘Latching’ is set to ‘OFF.’ The output is held but the display reading contin-
ues to accept measured values when set to ‘OUT.’ Both output and reading are held when set to ‘ALL.’
In order to reset the latching, access Advanced Setting mode and set ‘Latching’ to ‘OFF’ once before setting ‘Latching’ type
again.
• Alarm power ON delay
The measuring begins after waiting for the delay time from power on.
• Standby sequence
If standby sequence is ON when power turns on, outputs stand by until the input enters P zone.
• Scaling error
Choose ‘OFF’ if you want no alarm trips when the input signal is out of the scaled range.
• Display reading type
Specify which reading is initially displayed when the power supply is turned on or when the display is shifted from the setting
mode to the measuring mode.
Sampling Times v.s. Reading
T INP READING REFERENCE USED IN NEXT CALCUL.
1 I
1
I
1
– I
1
= 0 C
1
= I
1
1 1
2 I
2
I
2
– C
1
C
2
= –– (C
1
+I
2
) = –– (I
1
+I
2
)
2 2
1 1 1
3 I
3
I
3
– C
2
C
3
= –– (C
2
+I
3
) = –– (I
1
+I
2
) +
–– I
3
2 4 2
1 1 1 1
4 I
4
I
4
– C
3
C
4
= –– (C
3
+I
4
) = –– (I
1
+I
2
) +
–– I
3
+
–– I
4
2 8 4 2
:
:
:
:
1 1 1
n I
n
I
n
– C
n–1
C
n
= ––– (I
1
+I
2
) +
––– I
3
+ .... +
–– I
n
2
n–1
2
n–2
2
In : Input
Cn : Reference value used in the next round of calculation
Comparison is made against the result of last display
(calculated) value.
Example
T INP READING
REFERENCE USED IN NEXT CALCUL.
1
5.0 5.0 – 5.0 = 0
5.0
1
2
4.0 4.0 – 5.0 = -1.0 ––
(5.0 + 4.0) = 4.5
2
1
3
5.5 5.5 – 4.5 = 1.0 ––
(4.5 + 5.5) = 5.0
2
1
4
4.0 4.0 – 5.0 = -1.0 ––
(5.0 + 4.0) = 4.5
2
1
5
9.5 9.5 – 4.5 = 5.0
––
(4.5 + 9.5) = 7.0
2
Analog output may not simply increase/decrease depend-
ing upon timing of the input supplied in relation to the
sampling rate.
• High-pass filter
Deviation between the currently measured input value and the average of the past values is calculated in order to disregard
mild changes in the input signals, detecting only steep changes.
