Dynasonics TFXP Series Transit Time Ultrasonic Flow Meter - Manual (Page 69)

Rev. 5/09
-3.31- TFXP
ISO-MOD:
Dual Relay
Module
(Optional) RELAY -- Dual Relay (Choices and Values)
RELAY 1 AND RELAY 2
1. None (NONE)
2. Totalizer (TOTALIZE)
a. Totalizer Multiplier (TOT MULT)
3. Flow (FLOW)
a. On Setting (ON)
b. Off Setting (OFF)
4. Signal Strength (SIG STR)
a. On Setting (ON)
b. Off Setting (OFF)
5. Errors (ERRORS)
Two independent SPDT (single-pole, double-throw) Form C relays
are contained in this module. The relay operations are user
configured via software to act in either a flow rate alarm, signal
strength alarm, error alarm or totalizer/batching mode. The relays
are rated for 200 VAC maximum and a have current rating of
0.5 A resistive load (175 VDC @ 0.25 A resistive). It is highly
recommended that a secondary relay be utilized whenever the dual
relay module is used to control inductive loads such as solenoids
and motors.
Figure 3.12 —
Typical Relay
Connections
PART 3 - KEYPAD CONFIGURATION