Dynasonics TFXM Series Ultrasonic Multi-Channel Flow Meter - Manual (Page 56)

Rev. 8/02
-3. 18- TFXM
When one of the relays is set to TOTALIZE mode, an entry of
TOT MULT must be programmed to establish the accumulated
flow volume that needs to pass before the relay will “pulse”.
The relay will pulse every time that volume is accumulated.
The pulse has a duration of approximately 50mSec. Enter a
value using the same units that were established as Engineer-
ing Units TOTAL on page 3.12.
When a relay is set to FLOW mode, two entries must be made:
ON and OFF. The ON and OFF entries dictate at what volu-
metric flow rate (using the volumetric units established as Engi-
neering Units RATE and RATE INTERVAL on page 3.12) the
relay turns ON and at what flow rate the relay turns OFF - es-
tablishing a deadband. For “fail-safe” mode, the ON setting
should be set higher than the OFF setting.
When a relay is set to SIG STR mode, the relay will activate
when the measured Signal Strength falls below the Signal
Strength Cutoff setting. See page 3.26.
When a relay is set to ERROR mode, the relay will activate
when any error occurs in the flow meter that has caused the
meter to stop measuring reliably. See the Appendix of this
manual for a list of potential error codes.
Integral RS485 Communications
RS485 MO — MODE
SLAVE
MASTER
RS485 BA — BAUD RATE
1200
2400
9600
19200
ADDRESS — Device Address
1-127
PART 3 - KEYPAD CONFIGURATION
Batch/Totalizer
Relay
Signal Strength
Alarm
Error Alarm
Relay
Flow Rate Relay
RS485
MODBUS
Communications
4. AUX COMM MENU -- RS485