68
L
L
L
L
L
t
t
t
q
t
L
t
t
t
t
tt
t
T
E
I
t
t
r
r
Error
in
E
rro rs
Refef
to
lnstrument
sellngs
Comments
POWER
SUPPLY
li
prob
ems with lhe nslrumenl check
power
suppiy
I rst
6.1.1
No
nput vo
lag-a
aulorang ng
Check
if balleries are
empty
Check
if 9V EXT
power
supply
6.2. DISPLAY No LED
rs ghted
Oniy lndicatron LED s are lighted
(+.
-
,
MAN. t!4a, mva)
LED [4AN
is nol
lighled
One 7
segment LED
is
ghled
very br
ghl
Two 7
segmenl LED
s are b anked
One
7
segmenl LED
,s
ncofrect
One seqment
of
a LED
rs
ncorrect
62.1.
62.2.
623
624
6.25
626
6 2.7
6.2 8
No Inpur
voltage
Auto
rangrng
Check
!f the display
63
ADC
Drsp ay conslänt 0000
D sp ay conslant 0 loverrange)
Disp ay will not become
0000
No
adjuslmeni
of d sp
ay
poss
b
e
Unslable d
rsplay
ADC nol in€ar
6.3
1
6 3.2.
633
634
635
636
637
Inpul vollage direclly
supplred
to npu t oi
ADC
0 ! 90mv.:900nrv
Hi
:
8108 r
qhl
side
lf adtustments
4
and 5
(Chapter
52 )
cannol be macle
ranlle 1
and 2 o(
ADC lhen
the
errof
is
kely
n
lhe ADC
The ADC s used
64 V
----ATTE.
NUATOF
Dlsplay cannol be adtusted lo zero
Range
1V: and
10V:
cannot be adJUsled
(Adl
3.
4.
5)
Range 100V:
and
1000V:
cannot be
adlusted
(Adt.
no
6 7)
V: ranqes nol lrnear
6
4.1.
642
643.
645.
nput
vorlage
VAr0
Manual ranqrng
I
error
rs
on
y
n V: luntion
then the error
rs k-oly rn lhe
65. RA NGING No manua ranging
No
aulo
rangrng
IncorreCi rangrnq
(decrmal
po
nl Inconecl)
Osc lating belween lwo Vtu ranges
652
6.5 3
6.5
4
Funct on V:- V- or kt
Inpuli
not
mportant
ManualiAuto rangrng
Rang
ng
parl
s burll
rn the
conlroi
ogrc
and
,s
used
n a i functrons
66. Vfu RANGES
(R
MS
Display consianl 0000
Display
will nol
become zero.
VQ/O sho.lcrrcurl-ad
Adlustment
cannol be made
{Adt
no l0)
rnqorrecr measureo varue
6 6.2
6.6.3.
6 6.4.
Inp! t voltaqe
s upplred
lo va/O
Manual ranqrnq
The AC/DC convertor s also used
6.7.
A
RANGES
(Cu(ent
DLsplay constant 0000
Range
1000 A cannot
be adlusied
(Adl.
no.
14)
Range l0 MQ cannot
be adjusted
(Adj.
no.
15)
Devral on
rn
the
measered
value
10Ä,1e range noi linear
6.7.2
6.7.3.
6.7.4
6.7.5.
Resrstance su
Pll
ed
to vaio
Manual rang ng
The current source 000063
is also
used
n the functions
'C
and
6.8. A- FANGES
(Shunts)
Dispiay conslant 0000
n range
10A:
Range
10A:.-cannot be adjusled
{Adl.
no.
12)
D sp ay constant 0000
n
range 100mA:
Ranqe 100mA
*- cannot be adjusled
6.8.r.
6.8.2
6.8.3.
6.8.4
Cunent s upp ied to
Va/o and l0A/0
Comb ned snunt A:-. Atu
(Shunts)
ursp ay constanl 0000
Range
100mAa cannol be adjusted
(Adj.no.
19)
6.9.1.
6.9.2 Current supp led to
Va/o
and
10A/0
Combrned shunt A:
,
Atu
610
.C
RANGES
(Temp.
bradge)
Disp ay constant
0000
'C
range cannot
be adjusted
(Adj.
no. 17)
6.10
1
6.r02
Funclron'C
Inpuli Probe or res
slor
(Adj.
no.
r7)
cornbLned
tu.
'C
ano
{
range
6.11
I
uNoe
Incorrect
f
unctionning
6.11.1runction
I
Inpuli D ode
betwe€n
va/0
Comb
ned
cu.rent source Q.
"c
and
t
(2ka
ranse)
STAND BY
(40
sec
)
Stand by lime is too long
Stand by time is loo
short
6.12.1
6.12.2
STAND
BY
(40
sec)
6.13DATA HOLD Dala ho d does not funclion
6.13.l Use
data hold
probe
Pt!49263 or inlerconnecl
probe
inpul sockel
pornt
5 and 0 socket
ü
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