Watlow Electric 93 User Manual

Page 11

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W a t l o w S e r i e s 9 3

I n s t a l l a n d W i r e

2 . 5

Figure 2.5a –

0-5VÎ (dc) Process

Input impedance: 10k

Figure 2.5b –

4-20mA Process

Input impedance: 5

Figure 2.5c –

4-20mA Process: 2-Wire Transmitters

Install and Wire

NOTE:

Successful installa-
tion requires four
steps:

• Choose the con-
troller’s hardware
configuration and
model number
(Appendix);

• Choose a sensor
(Chapter Two and
Appendix);

• Install and wire the
controller (Chapter
Two);

• Configure the con-

troller (Chapters
Three, Four and Five).

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WARNING: To avoid
damage to property
and equipment,
and/or injury or loss
of life, use National
Electric Code (NEC)
standard wiring prac-
tices to install and
operate the Series 93.
Failure to do so could
result in such dam-
age, and/or injury or
death.

NOTE:

When an external
device with a non-
isolated circuit com-
mon is connected to
the 4-20mA or dc out-
put, you must use an
isolated or unground-
ed thermocouple.

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CAUTION: Process
input does not have
sensor break protec-
tion. Outputs can
remain full on.

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