1050 Hopper Ave, Santa Rosa, CA 95403 • Tel (800) AIRFLOW • www.airmonitor.com [email protected]
ELECTRA-flo G5 Transmitter Thermal Airflow & Temperature Measurement System 1015-3 - 07/18
13
Zero Lockdown
Zero Lockdown will drive the displayed flow and velocity,
as well as the associated outputs to zero when the velocity
is below the set point. As very low air velocities tend to be
noisy and unstable, it may be best for control purposes to
raise the zero lockdown velocity to an appropriate threshold
above that which the velocity is steady and reliable.
Alarm/Alert Configuration
The Alarm/Alert Configuration menu provides access to
select and configure the transmitter alarm and alerts. Alarm
type can be either flow or temperature with Upper and Lower
limits. The transmitter alarm controls an on-board relay (see
the wiring diagram for Normally Open and Normally Closed
configurations). Alerts are messages possibly indicating
issues with sensors or the transmitter.
Alarm Operation:
If the process value (Type) exceeds the
Upper or Lower Limit, the relay will change state from
the default of NO or NC and the Type will change to red.
When the process value recovers to be within the Upper
and Lower Limits, the relay will return to the default state
and the Type will return to black. Limit Units are shown
in parentheses. These units are controlled by the System of
Units and the Units of Measure. If the units are US and the
flow is CFH, CFH will be the units used in Limits.
Alert Operation:
Enable Reg. Alerts will turn ON / OFF
Enable Global Alerts will turn ON / OFF
Network Configuration
Type is BACnet MS/TP
Select appropriate Baud Rate, address, ID and Max Masters.
BACnet MS/TP
BACnet MS/TP serial interface connections are connected
at the J2 terminals labeled “BACnet: D+, D-, G, and SH”.
The positive RS485 connection is made to “D+”, the
negative connection is made to “D-”, the common ground
connection for a 3-wire network is made to “G”, and the
shield drain can be connected to “SH”.
Zero Lockdown
ENT - Accept ESC - Leave UP/DN - Change
Lockdown
ON
30
Velocity (FPM):
Alarm/Alert Configuration
ENT - Accept ESC - Leave UP/DN - Change
Type:
Flow
750
100
OFF
ON
Upper Limit (CFM):
Lower Limit (CFM):
Enable Reg. Alerts:
Enable Global Alerts:
Network Configuration
ENT - Accept ESC - Leave UP/DN - Change
Type:
BACnet
38400
3
5
127
Baud Rate:
Address:
ID:
Max Masters:
!
WARNING
Do not connect shield drains to the “G” terminal.
