Functional Description
The DT200 will display all LCD segments when it is first turned on, for
approximately 3 seconds. It will provide information with either one or
both thermocouples plugged in.
Numerous viewing combinations are available. The LCD is divided into
three distinct sections; one large (Primary) top screen and two smaller
bottom screens (Secondary and Relative Clock). The three display areas
keep you constantly updated with the temperature measurements and
relative time information. You have a number of options regarding how
and what information is presented on the LCD.
• Temperature readings area easily toggled between Fahrenheit
and Celsius
• The back light illuminates the LCD for viewing in low light areas
• The HOLD button will freeze the upper display data while
allowing the lower displays to continue updating
• Information about selected functions along with a low battery
indicator is also displayed as appropriate
• The DT200 will default to the last mode selected when used in
that setting for 10 seconds or more
NOTE:
If no thermocouples are plugged in, four dashes will appear
in the temperature data screens. This instrument operates and
updates silently.
Auto Power Off
This instrument will shut off automatically in approximately 90 minutes.
For recording or operating over longer periods of time you can defeat
the auto power off function by holding down th on/off button and the
hold button at the same time when turning the unit on. An “N” will
appear in the middle of the screen at which time you can release the
hold button. when the screen flashes over to its normal measurement
mode, release the on/off button.
Mode Options
Delete and replace with Programmable user selectable start-up mode.
The display will default to the mode last used if it was displayed for
10 seconds or more. For your convenience the DT200 defaults to the
settings used during the last operation. The following table lists the
modes of operation that can be invoked by pressing the buttons
indicated. The table assumes your instrument has been powered on
with two thermocouples installed and is set to display (default) T1 on
the primary display, type K thermocouple, and Record off.
Operating Instructions
ACS1 Clamp Strap Adapter
For use with temperature testers
measuring the temperature of pipes
and tubes, e.g. super-heat measurements.
The adjustable Velcro
®
strip clamps the
probe tightly to pipes with diameters
from 1/4” to 4”
(Fig 1)
.
Button
On/Off
HOLD/
RELATIVE
T1-T2
Back Light
K/J/T
˚K/˚C
Record
Response/Display
Turns instrument of (Default setting) and off
Press momentarily
and the Primary display
(T1, T2 or T1-T2) freezes;
Press for two or
more seconds
- REL appears on top of LCD
and the Primary display indicates the relative
zero (Relative zero causes the value of the
primary display to show as “000.0” - only
the amount of temperature change will be
indicated); Relative temperatures can be
recorded.
Press momentarily again
and
the unit returns to default
Press momentarily
and the Primary display
changes to T2 (Secondary screen displays
T1); press momentarily again and it displays
T1-T2; Secondary display alternates between
T1 and T2;
Press momentarily again
and
the instrument returns to default
Press momentarily
and the back-light
illuminates for approximately 30 seconds
then turns off
Press momentarily
and the unit
cycles through K (the default), J and T
thermocouple types; The current mode is
displayed on the left of side of the LCD
Press momentarily
and the unit toggles
between Fahrenheit (the default) and Celsius
temperatures; The current mode is indicated
on the right side of the LCD
Press momentarily
and the Relative
Clock start in the lower right screen, REC is
displayed in upper left of LCD - All other
button functions are locked out except
Power and Back-light. T1, T2, or T1-T2 is
displayed on the Primary screen; The
Secondary screen continues to update.
Press momentarily again
and the unit
cycles through MAX and MIN (maximum
and minimum recorded temperatures) and
back to current temperature; The record
mode is displayed on the LCD. Press and
hold RECORD for three seconds to turn off
the record function
DT200-MAN
P. 2
(Fig 1)