5vdc, output 1 wiring, S.s. relay, output 2 wiring, Output 2 option “b”, solid state relay model# 98_a – Watlow Series 985 User Manual

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Output 1 Option “H”, O-5VDC

Model# 98_A-_H _0-0000

Process Output
Proportional value determined by the control to balance the sensor input and set point.

This value will fall between O-5VDC dependlng on your process output type.

Output 2 Option “B”, Solid State Relay

Model# 98_A-

B 0-0000

- -

Solid State Relay

Watlow’s solid state relays change state at zero volts, which is zero-cross switching.”
They are also optically isolated, which means the output circuitry is energized by

infrared light striking a photo-sensitive device. This results

virtual absence of electri-

cally

generated noise,

plus output to input

electrical isolation.

Off state impedance is

2 O K o h m s minimum.

Figure 20 -
O-5VDC, Output 1,

Option "H" Wiring

Diagram.

Figure 21 -
S.S. Relay,
Output 2, Option "B"
Wiring Diagram.

Install and Wire, Chapter

WATLOW Series 980/985 Users Manual