6
1. Controls and Functions
1-1. Front panel
1
2
3
4
5
6
8
9
7
1
Numeric display
The TD-260T shows a continuous reading or a set value on
the display.
If the sensor input is erroneous or a reading cannot be
displayed, the corresponding overflow message is displayed
as shown below.
-LOAD:
A/D converter overflow in the negative
direction
LOAD:
A/D converter overflow in the positive direction
-Full:
Display overflow, lower than -19999
Full:
Display overflow, higher than 99999
2
Decision output LEDs
The following LEDs show statuses of the TD-260T.
HH/HI
The HH/HI LED shows the operation of the decision
output for the High-High limit (“HH”) or High limit (“HI”),
meaning that the LED displays one of the following
solid colors when a displayed reading is higher than the
corresponding set value.
Red:
shows that the HH decision output is ON.
HH value < displayed reading
Orange: shows that the Hi decision output is ON.
HI value < displayed reading
Note that the light displays solid red when the
setting for Enable HH and LL (F1-5) is OFF
OK
The OK LED shows the operation of the OK decision
output, meaning that the LED displays solid green when
a displayed reading is both higher than the LO value and
lower than the HI value.
Green: shows that the OK decision output is ON.
LO value displayed reading HI value
LL/LO
The LL/LO LED shows the operation of the decision output
for the Low-Low limit (“LL”) or Low limit (“LO”), meaning
that the LED displays one of the following solid colors
when a displayed reading is lower than the corresponding
set value.
Red:
shows that the LL decision output is ON.
Displayed reading < LL value
Orange: shows that the LO decision output is ON.
Displayed reading < LO value
Note that this LED displays solid red when the
setting for Enable HH and LL (F1-5) is OFF.
NOTE
The operations of decision outputs vary depending on
the settings for Comparative Output Pattern (F1-15) and
Hysteresis (F1-6).
In the above examples, “standard” for Comparative Output
Pattern and “0” for Hysteresis are selected.
3
Decision LED (JUDGE)
The LED lights when the decision output is enabled.
With Enable JUDGE Signal (F3-8) set to ON;
the LED lights if the JUDGE signal from A6 is ON, or
the LED remains off if the JUDGE signal from A6 is OFF.
With Enable JUDGE Signal (F3-8) set to OFF,
the LED lights and remains on.
4
Calibration keys
GAIN:
To perform a calibration by applying an actual
load, press this key.
TEDS:
To perform a calibration when a TEDS sensor is
connected, press this key.
CAL:
To perform a calibration by entering the rated
output values, press this key.
5
Lock LEDs
CAL:
Lights while changing calibration values is not
allowed.
SET:
Lights while changing set values is not allowed.
6
Hold-mode LEDs
Each LED displays solid green, showing that the
corresponding mode is set, or it displays solid red or orange,
showing that the TD-260T is operating in the corresponding
mode.
PEAK:
Lights when the TD-260T is operating in the
Peak-hold mode.
BOTTOM: Lights when the TD-260T is operating in the
Bottom-hold mode.
P-P:
Lights when the TD-260T is operating in the
Peak-to-Peak hold mode.
SAMPLE: Lights when the TD-260T is operating in the
Sample hold mode.
7
HOLD key
Pressing this key starts the hold operation. To stop the hold
operation, press the key again.
