Dynasonics 901 Series Enhanced Ultrasonic Flow Meter - Manual (Page 33)

Addendum — Relay Alarm Module
Description: Installation and Operation Manual Addendum
Series D901/D90M Alarm Relay Option
Origin Date: 7-20-98
Revision: none Revision date: none Page 1 of 2
General
This addendum supplies information not covered in the standard Installation and
Operation Manual supplied with the Series D901/D90M Ultrasonic Flowmeter Product.
The Series D901/D90M product enclosed in this carton was purchased with an
external relay alarm module. The module is enclosed and will need to be mounted
seperately from the D901/D90M enclosure.
Supplemental Specifications - Alarm Module
Loop Load equivalent 200 Ohms
Alarm Trip Point Activated by setting trip point proportional to full scale FPS
(example: to trip alarm at 2 FPS when FULL SCALE on
the D901 is set to 10 FPS. Set alarm to 2/10 = 20%.)
Contact Rating SPDT, 3 AMPS @ 28Vdc or 117 VAC resistive.
Dead Band DIP switch selectable, see chart below
Connections
Termination Inside the D901/D90M
Terminations at the Alarm Relay