METREL MD 9273, Instruction Manual

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MD 9273 Leakage clamp Instrument Description
9
2.1 Rotary Function switch
It is intended to switch-on clamps and select basic test function or activate BT communication as described
in Table 1 .
Position Function
OFF OFF position.
A Measurement of AC current up to 100 A.
V Measurement of AC or DC voltage up to 600 V.
W Measurement of power of up to 60 kVA, with limits of 100 A and 600 V.
Activates the Bluetooth® Mode to communicate with Metrel instruments.
Table 1: Rotary switch position functions
Keyboard
The keyboard consists of four multifunctional push buttons. Table 2 describes the function of each one.
Key Use Function
F – Function Any position of the rotary
switch
Function selection key. Depending on the rotary switch
position, the functions will vary. See Chapter
Description of Test Functions for details.
Pressing this button cycles through the various
functions.
Hz – Frequency A and V position of the
rotary switch, in the RMS
function only
When pressed for more than 2 s, it alternates the
second display information between THD and Hz.
H – Hold Any position of the rotary
switch and all the
functions except in PEAK
function
When pressed the data hold mode is turned on and the
screen information stops updating.
On next press, the MAX mode is turned on for the
register of maximum values.
On third press, the MIN mode is accessed for the
register of minimum values.
Press again to return to the normal mode.
Light Any position of the rotary
switch, in all the functions With a long press of the key (more than 2 s) the LCD
screen back-light is lit. 30 s after any button was
pressed, it switches off automatically.
Auto A and V position of the
rotary switch, in the RMS
function only Cycles through the different manual ranges until the
Autorange is active again.