FLIR DM6x USER MANUAL Document Identifier: DM6x-en-US_AA
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5.8 Data Hold
In Data Hold mode, the displayed reading is held. To enter/exit Data Hold mode, short
press the
button. In Hold mode, the indicator is displayed.
5.9 Relative Zero Mode
Relative Zero allows the user to offset measurements by the amount determined by a
stored reference value. Almost any displayed reading can be set as the relative
reference value including MAX/MIN/AVG readings. Long press the button to toggle
Relative Zero mode ON and OFF.
When switched ON, the meter stores the displayed reading as the offset/reference
value, the zero (0) symbol appears on the upper right, and the meter will display the
measurement value minus the stored reference.
5.10 VFD Mode (Low Pass Filter) Models DM64/DM66 only
The VFD (variable-frequency drive) utility eliminates high-frequency noise from AC
voltage measurements. This is accomplished using a low-pass filter. To activate, short
press the MODE button until the VFD symbol appears.
5.11 MAX-MIN-AVG Record Mode
Short press REC to activate the recording mode, three arrow icons ( [MAX],
[MIN], and
[AVG]) will appear indicating that the meter is now recording. Short
press the REC button to step through the MAX-MIN-AVG readings. The meter beeps
when new MAX or MIN readings are detected. Long press REC to exit the recording
mode. Auto-ranging is active and Auto-Power-Off is disabled in this mode.
5.12 Test Lead Input Warning
The meter beeps (at a fast rate) as well as displays “InEr” to warn the user that an
improper connection to the
A, mA, or A input jack is being made when another
function, especially a voltage function, is selected.
5.13 Auto Voltage AC/DC Detection in ‘Lo Z’ mode (DM64/DM66 only)
Auto Voltage ‘Lo Z’ mode automatically selects DCV or ACV, based on input levels
detected through the test leads. This mode uses a ‘Lo Z’ low ramp-up impedance
(approx. 2.1kΩ for low voltages) to drain ghost voltages. Refer to Section 6.2 Low
Impedance Auto-Voltage Measurements for complete details.
