Sifam Tinsley Zeta 30, User Manual

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4
4.
The function selector switch (6) is coupled with the Automatic terminal
Blocking System (ABS) which allows access only to two correct sockets for
each function. Prior to switching to the "mA" functions or from the "mA"
functions, remove the test lead from the corresponding socket. When the test
leads are plugged-in, the terminal blocking systems prevents accidental
switching to non permissible functions.
Function and range selection
4.1 Switching the DC current measuring ranges
300 µ A, 30 mA,300 mA
not automatically selected when the meter is switched ON. The above ranges
can only be selected manually with “AUTO/MAN” key! The current measuring ranges mentioned above are
Turning the multimeter OFF
Press the "ON/OFF" pushbutton (2).
How to prevent automatic TURN-OFF
In order to prevent automatic "TURN OFF" select "CONTINUOUSLY ON"
mode. For this, press y
"ON/OFF"
pushbutton (2) together. The function "CONTINUOUSLY ON"
is shown on the LCD (1) by the symbol
ellow multi-function pushbutton (5) and the
(8).
ON
4.2 Autoranging
The multimeters feature autoranging for all measuring ranges with the
exception of the 30 mV
Autoranging is automatically selected after switching the Multimeter ON.
According to the measured quantity applied, the multimeter automatically
selects the measuring range which gives the best resolution. When switching
to frequency measurement and to ratio measurement, the previously selected
voltage measuring range is maintained.
- - -, 300 mV.
Note:
F Automatic turn-OFF is inactive on all current measuring ranges when
the measured value display exceeds 30 digits.
Set the function selector switch (6) to the desired position.
Disconnect the meter from the measuring circuit before you open it, and see
section "18.Maintenance"!
Automatic TURN - OFF
The meter turns off automatically, when the measured value remains constant
(variations of the measured value < + 2digits) for about 10 minutes and when
neither a pushbutton nor the function selector switch is operated during that
time. It remains ON, however, when a current measuring range is selected and
a measured value>30digits is displayed.
The meter switches automatically to :
The next higher range at + (3099 1digit)
the next lower range at + (240/280 digits - 1 digit)
from the 300mA - - - to the 3mA - - - range at + (24 digits - 1 digit)
27
Response time Transient response for
step function of the
measured quantity
Response time (after manual range selection)
of analog
indication
V
, V ~,
A
, A
30 W ... 3 M W
30 M
W
nF m F,
0
C
300 Hz, 3 kHz
30, 100 kHz
% (1 Hz)
% ( >10Hz)
Measured quantity/
measuring range of digital
display
0.7 s
1.5 s
4s
0.7 s
1.5 s
2 s
5 s
1.5 s
max. 1...3 s
max. 2 s
max. 0.7 s
max. 9 s
max. 2.5 s
from 0 to 80 %
of upper range limit
from oo to 50 %
of upper range limit
from 0 to 50 %
of upper range limit
~
Interface
Type RS232C, serial, as per DIN 19241
Data transmission Optically with infrared light through the case
Baud rate 8192 bits/s
Ambient conditions
Functional temperature
0
range -10
Storage temperature
0
range -25
Climatic class 2z/-10/50/70/75 % with ref
Altitude up to
Mechanical configuration
Protection type IP 50, for the connection sockets IP 20 according to
DIN VDE 0470 Part 1 /EN 60529
Dimensions 84 mm x
Weight 350 g approx.,including battery
18. Maintenance
Caution
Disconnect the meter from the measuring circuit before you open it to replace the
battery or the fuse!
18.1. Battery
Prior to initial start-up, or after storage of multimeter, verify that the batteries of
multimeter does not leak. Repeat this check in regular short intervals. If the battery
leaks, completely remove the battery electrolyte carefully with a moist cloth and
install a new battery before you operate multimeter again.
When the symbol " " (17) appears on the LCD (1) replace the battery as soon
as possible. Measurement can be done, but a reduced measuring accuracy must
be taken into account.
The multimeter operates with a 1.5 V x 6 batteries according to IEC6 LR03.
0
C...+ 50 C
0
C...+ 70 C without batteries
erence to VDI/VDE 3540
2000 m
195 mm x 35 mm