Solartron 1287 - Page 3

! his is
a procedure
for testing the 1287 iri stand alone dc
mode.
Using the 1287
input
leads (screened leads but only the
inner is used) connect RE1 and
RE2
together
Connect
RE1 / RE2 to a
known voltage
up to
10 volt
(dc
calibrator) referenced to
LO/EARTH
input on front panel of
1287.
(Break/Self
test)
several times to
display
INITIALISE.
"ENTER” sets
default
settings.
"RANGE” up
c-r down to
display
RE1
on
left
of display
"DIGIT
>“
"RANGE”
up
o.r
down to display RE2
on the right of the display.
SET
UP” led
flashes.
DVM RUN”.
SELECT” up
or down
to display
AUTO.
ENTER”.
"RECYCLE"
via rotary knob.
"ENTER”.
"SET UP” led goes
off.
"ON STANDBY" led comes on.
“DVM RUN”
led
comes on.
Display
should
show
dc input volts
applied
to RE1
and
RE2.
Short REIand RE2
together
and connect
to LO/EARTH
input
on
front
pane!
of
1287,.
display
should show
RE1
and
RE2 as approx 0
volts
+/-
a
few micro volts.
Press
Press
Select
"RANGE” up
or down
to
select.
<
SET UP” led
flashes.
"ON STANDBY”.
"IOC ohms”
resistor via rotary k
display of current 1
in right
of
display.
mob, this selects the
interns! resistor value
used
to
measut e current.
Press "ENTER”
Press
“SET
UP"
led goes
off.
Input
a
current of
Ima to WE
terminal on
front panel of 12.87
relative
to
the LO/EARTH
terminal
on the
1287
front panel.
Display should be showing
Ima on the right of
the
display.
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Press
Connect RE2/WE together.
Connect RE1/CE together.
Connect above across
a
Ikohrrt resistor
Press "SET UP”.