8
In the case of immersion type thermocouple measuring mode, Data HOLD [D.HOLD]
function does not work.
6. Other functions
• Automatic cold junction temperature compensation
(Only thermocouple input)
Detects the temperature at thermocouple and connecting terminal of this instrument and constantly
keeps the reference junction status at 0 or 32
• Auto-Power-Off
In order to keep batteries from consuming the power of DFT, it is turned off automatically
unless operation is carried out within the preset time. However, when the measuring is carried out
in immersion type thermocouple measuring mode (when timer is active), power to the DFT is
automatically turned off unless DFT is operated within the preset time after timer action is over.
(Data on the PV display blinks.)
• Auto-range
When the PV indication changes from 999.9 to 1000 ( ), resolution automatically changes
from 0.1 ( ) to 1 ( )
• Immersion type thermocouple measuring mode (EI)
In the case of immersion type thermocouple measuring mode, if temperature exceeds the preset
timer start temperature, the timer starts countdown, and the data is indicated on the PV display at the
same time with the Time-up and the indication blinks.
(HOLD value indicates the value at the Time-up regardless of sensor burnout.)
However, after blinking is cancelled or power is turned on, if the indicated temperature is higher
than the value preset in timer start temperature setting, EI function does not work.
To start EI function again, be sure to set the indication temperature -5 (10 ) or lower.
• Decimal point place indication switch
It is possible to set the use of decimal point for 999.9 ( ) or less.
However, if it is set not to use decimal point, resolution turns from 0.1 ( ) to 1 ( )
• Battery life warning indication
When the battery voltage lowers, the battery life warning indication blinks and indicates that it is time
to change batteries.
• Input burnout indication
[Overscale]
In the case of thermocouple and RTD input, “
” blinks on the PV display if the sensor is burnt
out or the value exceeds the rated scale maximum value.
(Immersion type thermocouple measuring mode [EI] does not have this function.)
However, while Data HOLD, its value is indicated by priority.
Thermo-hygro sensor (THD-700-P) input:
In the case of temperature sensor (TD-S), if the sensor is burnt out or the value exceeds the rated
scale maximum value, “
” blinks on the data display.
In the case of humidity sensor (HD-S), if the value exceeds the rated scale maximum value,
“
” blinks on the PV display.
When humidity sensor is burnt out, “
” blinks or “0.0” is indicated on the PV display.
However, while Data HOLD, its value is indicated by priority.
[Underscale]
In the case of thermocouple and RTD input, if the value goes below the rated scale minimum value
“
” blinks on the PV display.
However, while Data HOLD, its value is indicated by priority.
Thermo-hygro sensor (THD-700-P) input:
In the case of the temperature sensor (TD-S), if the value goes below the rated scale minimum value
“
” blinks on the Data display
In the case of the humidity sensor (HD-S), if the value goes below the rated scale minimum value
“0.0” is just indicated on the PV display.
However, while Data HOLD, its value is indicated by priority.
When sensor is burnt out in the immersion type thermocouple measuring mode (EI), “
” blinks
on the Data display.
• Temperature unit selection
Temperature unit
or
can be selected.
• Memory backup
Backups the memory data when changing batteries
• Memory data clearing
If the power is turned on while the MEMO No. key is being pressed, all the data that is memorized
reverts to the factory adjusted value “
”.
