Figure 2.14c — Process Retransmit
0-20mA, 4-20mA, Load impedance: 600Ω max.
98 _ _ - _ _ _ _ - M _ _ _
0-5V
ÎÎ
, 1-5V
ÎÎ
, 0-10V
ÎÎ
(VDC), Load impedance: 500Ω min.
98 _ _ - _ _ _ _ - N _ _ _
2.14 WATLOW Series 988 User’s Manual
Installation and Wiring, Chapter 2
NOTE:
Input-to-output iso-
lation is defeated
when the external
signal conditioner
power supply is
used to power a
transmitter con-
nected to input 1 or
input 2.
NOTE:
Successful installa-
tion requires five
steps:
• Model number and
software choice
(Appendix);
• DIP switch set-
tings (Chapter 1);
• Sensor match
(Chapter 2 and
Appendix);
• Sensor installation
(Chapter 2); and
• Wiring (Chapter 2).
Figure 2.14d — External Signal Conditioner Power Supply
98 _ _ - _ _ _ _ - T _ _ _
Figure 2.14a — AC Outputs
Solid-state Relay
with
Contact Suppression
98 _ _ - _ _ _ _ - B _ _ _
0.5 amps, minimum off-state impedance: 20KΩ
Electromechanical Relay
without
Contact Suppression
98 _ _ - _ _ _ _ - J _ _ _ _
Form A or B, 5 amps, off-state impedance: 31MΩ
Solid-state Relay
without
Contact Suppression
98 _ _ - _ _ _ _ - K _ _ _ _
0.5 amps, off-state impedance: 31MΩ
Figure 2.14b — Switched DC
98 _ _ - _ _ _ _ - C _ _ _
Minimum load resistance: 500Ω
