Laurel Electronics LT: Ethernet & 4-20 mA Output Transmitter for Frequency, Rate or Period Input - Manual (Page 4)

LAUREL ELECTRONICS INC. , 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 4
Flow Rate and Simultaneous Total
Laureate frequency meters and transmitters are compatible
with all flow meters which generate pulses at a frequency
proportional to flow rate. The Extended version can display
scaled rate or total for the same input at the push of a button,
and alarm from both the rate and total.
Combining Two Rates
Extended Laureate frequency meters and transmitters offer
A+B, A-B and A/B arithmetic functions. A+B allows two input
flows to be summed for total flow, while A-B allows outflow to
be subtracted from inflow for net flow. Flow ratios aid in the
proper mixing of ingredients.
Custom Curve Linearization
Extended Laureate frequency meters and transmitters can
linearize the output turbine flow meters, which tend to be
nonlinear on the low end. Linearizing improves their dynamic
range and accuracy.
Ordering Guide
Create a model a model number in this format: LT60FR, CBL04
Transmitter Type LT Laureate 4-20 mA Transmitter
6 Standard Main Board
8 Extended Main Board Main Board
With Standard Main Board: Scalable to ±999,999 for frequency, rate, square root of
rate, up or down total, period, A-to-B time interval.
With Extended Main Board:
Above, plus rate and total simultaneously, ratio (A/B),
draw (A/B-1), other arithmetic functions (AxB, A+B, A-B), phase angle, stopwatch,
up/down counting, batching operation, linearization of nonlinear inputs.
Power 0 Isolated 85-264 Vac
1 Isolated 12-32 Vac or 10-48 Vdc
Input Type FR Dual-Channel Frequency
Accessories CBL04 RS-232 cable, TA to computer or USB adapter
CBL02 USB to RS-232 cable adapter