
IM-P505-02-US
Issue 1
58
UTM20 Series Ultrasonic Transit-time Flowmeters
Output #1 Submenus Options/Descriptions
PARAMETERS
(Pulse Total Mode)
OUTPUT
SOURCE
*POSITIVE
FLOW
NEGATIVE
FLOW
BIDIRECTIONAL
FLOW
Also available for
energy meters:
POSITIVE
ENERGY
NEGATIVE
ENERGY
BIDIRECTIONAL
ENERGY
Select whether the pulse output accumulates
only on positive (forward) flow, only on
negative (reverse) flow or anytime flow occurs
regardless of the flow direction (bidirectional)
For bidirectional, assign the direction status to
the other output, if desired
SCALING
FACTOR
Numeric entry Units and decimal place based on flow rate selection
Default is 1 unit per pulse Enter the number of totalizer units per
pulse The totalizer unit is in the SETUP > MEASUREMENTS menu
For example, if the totalizer unit is gallons, setting the PULSES/
UNIT to 10 transmits 1 pulse every 10 gallons Setting the SCALING
FACTOR to 0 1 transmits 1 pulse every 0 1 gallons
PULSE
WIDTH
Numeric entry 5 to 2000 ms
Default 50 ms Enter the pulse width in milliseconds
PULSE
STATE
*PULSE LOW
PULSE HIGH
PULSE LOW, the pulse totalizer output
remains in the off state and the voltage floats
at the source voltage level When the pulse is
triggered, the output turns on and the voltage
drops to the low voltage level This setup uses
the least power
If the pulse needs to be at the high voltage
level, use the PULSE HIGH option
PARAMETERS
(Flow Direction
Mode)
OUTPUT
SOURCE
*FLOW RATE
ENERGY FLOW
DIRECTION
FORWARD ON
*REVERSE ON
For energy
meters only:
ENERGY
FORWARD
ENERGY
REVERSE
Select whether the output is active when the
flow is forward or reverse When the absolute
value of the flow rate is below the cutoff, the
output will not be active.