Watlow Series 94 - Manual (Page 12)

Figure 2.6a – Solid-state Relay Without Contact Suppression
94_ _- 1D K _- 00_ _
0.5 Amp (AC loads only)
Form A
Figure 2.6b – Switched DC
94_ _- 1D C _ - 00_ _
7
7 to 10VÎ(dc)
unregulated
V—
6
Internal Circuitry
100 Ω
External
Load 7
6
-
+
External
Load
7
SS2
SS2
1
Fuse
L1
L2
Customer installed
Quencharc for inductive
loads only. See note 1.
Install and Wire
2 . 6 ■ I n s t a l l a n d W i r e W a t l o w S e r i e s 9 4
NOTE:
Output is in de-energized
state in Alarm Condition.
NOTE 1:
Switching inductive loads
(relay coils, solenoids,
etc.) with the mechanical
relay, solid-state relay
output options requires
use of an R.C. suppres-
sor.
Watlow carries the R.C.
suppressor Quencharc
brand name, which is a
trademark of ITW
Paktron. Watlow Part No.
0804-0147-0000.
NOTE 2:
When an external device
with a non-isolated circuit
common is connected to
the dc output, you must
use an isolated or un-
grounded thermocouple.
Ó
WARNING: To avoid dam-
age to property and
equipment, and/or injury
or loss of life, use
National Electric Code
(NEC) standard wiring
practices to install and
operate the Series 94.
Failure to do so could
result in such damage,
and/or injury or death.
See note 2.