Holding The Displayed Readings; Data Logging - Extech Instruments HD200 User Manual

Displaying Temperature units
1. Press UNITS to select the desired temperature units.
2. Touch the thermocouple(s) to the object under test. The temperature reading appears in the
primary display.
Notes:
 The display shows "- - - -" when a thermocouple is not connected.
The display shows OL (overload) when the temperature being measured is outside the

thermocouple or meter range.

Holding the Displayed Readings

1. Press HOLD to freeze the readings on the display .The display shows "HOLD".
2. Press DIF/T
1
primary or secondary display.
3. Press HOLD again to turn off the HOLD function.
Viewing the MIN, MAX, and AVG Readings
1. Press MAX/MIN to step through the maximum (MAX), minimum (MIN), or the average (AVG)
readings. The elapsed time since entering MIN MAX mode, or the time at which the minimum
or maximum occurred appears on the display.
2. Press MAX/MIN button for 3 seconds to exit the MIN MAX mode.
Note: Max/Min/Ave applies to the T1 and T2 inputs only.
Datalogging
1. Set the desired sampling interval as described in the Setup Mode.
2. Press the REC/
on at the set sample rate when the meter is datalogging.
3. Press the REC/
The supplied software allows the user to transfer stored data to a PC. Refer to the separate
software instructions on the supplied software disk for details.
Using the Offset Function to Adjust for Probe Errors
Use the offset option in Setup Mode to adjust the thermometer's readings to compensate for errors
in a specific thermocouple or IR temperature. The allowable adjustment range is ± 5.0
0
F.
1. Plug the thermocouple into the input connector.
2. Place the thermocouple in a known, stable temperature environment such as an ice bath or dry
well calibrator.
3. Allow the readings to stabilize.
4. In Setup change the offset until the primary reading matches the calibration temperature.
·T ·T to scroll through T1, T2, T3, T1-T2, T1-T3, or T2-T3 readings for the
2 3
▼
button to start recording. The "TYPE K" and "IR TEMP" indicators will flash
▼
button to stop recording.
7
0
C or ± 9.0
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