Protek 608 - Resistance, Continuity, and Low Voltage Ohm Measurement

'.
OPERATING
~
--
nnnn"..
Current
-UUUUU ·
Source
.....
idci :
8gg9
"@ '
\~
II
3-5. ACuA ACmA ACA AC+OCuA, AC+OCmA AC+OCA
1) Select uA, rnA or A with the rotar y switch. Press the ALT-F key once
to select the
AC m ode .. Pressing th e ALT-F key again selects the AC+DC
True rm s mod e.
2) Use th e same pr oce dure as described in section 3-4
(DC c ur rent m eas ureme nts)
3-6. Ohm, CONTINUI TY, Lo Vol' ohm
1) Rotate th e rotary selector switch to the OHMS position.
2)
If the test l eads are opened th e display w ill read "OL".
3) Shorting the test leads will disp l ay zero or an extremely low val ue
Re sistance value, this is th e test lead resistance.
4) Relative
mod e is us eful to cancel this error by subtracting the test lead
Resistance from
the m easured resis tan ce.
S) The seco
nd ary display reads 2.5V if normal O hms measurement has
been selected,
O.2SV if Lo Volt Ohms has been selected. These voltage
values are
th e open circuit test voltag e. If continuity is selected, the
measured resistance va lue is displa ye d on the secondary display.
6)
One of th ese 3 functions may be sel ected by pr essing the ALT-F key
until the desired a
nnunciator is displayed on the l ower left of the LCD.
7) . The continuity function is useful for check ing for open or short circuits.
The resistance value is read on the secondary dispJ ay whil e the main
display reads
either "OPEN" or "S HORT ". The buzzer will sound when
th e displ ay reads "SHORT'. Pressing th e LEFT or RlGHT key while in the
co ntinuity function increases or decreases continuity measure ment range
there by increasing or decreasing
the resistance value, which turns the
bu
zzer on or off . .( See continuity specifications in the Appendices)
11