Laurel Electronics LTM CTR SERIES PULSE, AC or PROCESS TOTALIZER INPUT, SERIAL DATA OUTPUT - Manual (Page 2)

- - 2 -
1. ORDERING GUIDE, LTM “CTR” SERIES TRANSMITTERS
Configure a model number in this format: LTM600VF1, CBL04
LTA Transmitter with serial I/O, Modbus or
Custom ASCII protocol. Includes 4-20 mA,
0-20 mA or 0-10V isolated analog output,
isolated 5V, 10V or 15V transducer excita-
tion output, and dual solid state relays.
Default jumpered for full duplex RS485 and
RS232, and 10V excitation.
Main Board
6............................... Standard pulse or AC input
8............................... Extended pulse of AC input
Please see notes for “Extended”
Power
0............................................. 95-240 Vac ±10%
1....................................12-30 Vac or 10-48 Vdc
Relay Output
0................................................................. None
2....................................... Dual solid state relays
Input Type
FR .................. .. Dual Channel Pulse or AC Input
Standard main board
Frequency (2 channels), rate (2 channels), total
(2 channels), period, stopwatch, time interval.
Extended main board
Above plus rate and total simultaneously, linear-
ized inputs using up to 180 points, arithmetic
functions applied to channels A & B (A+B, A-B,
A*B, A/B, A/B-1), phase angle, duty cycle, up/
down counting, batch control.
VF1 ............................. .. 4-20 mA Process Input
VF2 ............................... .. 0-1 mA Process Input
VF3 ................................. .. 0-10V Process Input
VF1 ............................................ .. Custom Input
Standard main board
Rate or total from analog process signals.
Selectable square root extraction for use with
differential pressure flow meters.
Extended main board
Above plus rate and total simultaneously (analog
totalizer), custom curve linearization using up to
180 points, batch control, and time based on
rate.
QD.................................................. .. Quadrature
Standard main board
Position or length from encoders. Accepts diffe-
rential or single-ended inputs: 1x, 2x or 4x, plus
zero index.
Extended main board
Above plus bidirectional rate (rate and position
or length are not simultaneous).
ACCESSORIES
CBL04 ...... RS232 cable, 3-pin connector on
transmitter end, DB9 connector on
computer end.
CBL02 ...... USB to DB9 adapter cable.