A SERVICE OF

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-6-
pH
levels.
mA
at the desired
mA
and the "Span"
for 20
PII
simulator
at the input, a resistor at the temperature compensation terminals.
(Refer to Table I for the correct resistor and millivolt values).
Adjust
the "Zero" for 4
h
ZERO adjustments interact and require going back and forth between
them.
Connect a millivolt source,
or preferably a
pH
units.
3.6 SPAN
#3
in place.
The output is adjustable
for a span of 1 or 2
#2,
and
al,
#3
is with jumpers RANGE