User Manual

18 GMC-I Messtechnik GmbH

Control Functions

4.1.4 Quick Measurements (MAN or DATA function)

Measurements performed using a suitable fixed measuring range

are executed more quickly than those which utilize automatic

range selection. Quick measurement is made possible with the

following two functions:

• Manual measuring range selection, i.e. selection of the measuring

range with the best resolution (see section 4.1.2)

•With the DATA function (see section 4.4) In this way, the appro-

priate measuring range is selected automatically after the first

measurement and the second measurement is executed more

quickly.

The selected measuring range remains active for the subsequent

series of measurements with these two functions.

4.2 Zero Offset / Relative Measurements – ZERO/Delta REL Function

Zero offset or a reference value for relative measurements can be

stored to memory depending upon deviation from the zero point:

The relevant reference or correction value is deducted individually

for the respective measuring function as an offset from all future

measurements and remains in memory until deleted, or until the

multimeter is switched off.

Zero balancing and reference value adjustment can be used for

auto-ranging, as well as for manual measuring range selection.

Zero Balancing

Ð Plug the measurement cables into the instrument and connect

the free ends to each other, except for capacitance

measurement in which case the ends of the cables are not

connected to each other.

Ð Briefly press the ZERO | ESC key.

The instrument acknowledges zero balancing with an acoustic

signal, and the “ZERO ΔREL” symbol appears at the LCD. The

value measured at the moment the key is pressed serves as a

reference value.

Ð Zero balancing can be cleared by once again pressing the

ZERO | ESC key.

Deviation from Zero Point

– with short-circuited measurement cables

for V, Ω, R

, , A

– with open input for capacitance unit of measure (F)

Display

±(0 ... 200) digits ZERO ΔREL

±(200 ... 25000) digits

(10 A measuring range: up to 5000 digits)

ΔREL