HP Extech 380976 - Manual (Page 15)

380976 V3.2 4/11 15
Meter Control Keys
HOLD - MX/MN Key
Data Hold Function
Press this key momentarily to put the meter into Data Hold mode (HOLD will appear on the LCD).
In this mode, the meter freezes the displayed reading. To exit the Data Hold mode, press the key
again (the HOLD icon will switch off). Note that the Data Hold mode is not available for
Capacitance measurements.
MX/MN (Maximum and Minimum reading mode)
The MX/MN mode permits the user to record and recall the highest and lowest readings. The
MX/MN feature is available for ACA, ACV, DCV, TEMP, and µA functions only. The following
steps outline the MX/MN feature:
1. Take an ACA, ACV, DCV, TEMP, or µA measurement as described earlier.
2. Press and hold the MX/MN key for 2 seconds.
3. The Elapsed Timer (top display) and the MX/MN & ® indicators will appear on the LCD.
4. The Elapsed Timer shows the duration of the measurement session in Minutes and Seconds
(the Elapsed Timer switches to Hours and Minutes after 60 minutes). The maximum
recording time is 100 hours.
5. The ® indicator informs the user that the measurement range is being held. Note that the
AUTO POWER OFF feature is disabled in the MX/MN mode.
6. Press the MX/MN key again to view the highest reading and the time (shown on the Elapsed
Timer) that the reading was taken. The ‘MX’ icon will appear on the LCD.
7. Press the MX/MN key again to view the lowest reading and the time (shown on the Elapsed
Timer) that the reading was taken. The ‘MN’ icon will appear on the LCD.
8. Press again to view the current elapsed time and measurement.
9. To exit this mode, press and hold the MX/MN key until MX/MN indicators switch off.
Using the HOLD button for Power Measurements
Refer to the power measurement section of this manual for details.
RANGE Key
The RANGE Key operation varies from mode to mode. Refer to the information below:
In ACA, ACV, DCV, µA, Capacitance, and Resistance modes:
1. Press RANGE to enter the Manual Range mode (the ® indicator will appear).
2. Press RANGE again to select the desired range manually.
3. Press and hold the RANGE key to exit this mode (the ® indicator switches off).
In KW/kVA mode:
As described earlier, use the RANGE key to select the desired display combination: KW & PF,
KW & KVAR, KVA & Phase angle, or Current / Voltage.
In TEMP mode:
Use the RANGE key to select the desired unit of measure ( o C or o F).