Profesor

1

ABILITY TO LOCK OUT FRONT PANEL FUNCTIONS

SEALED FRONT PANEL CONSTRUCTION (NEMA 4/IP65)

ONE OR TWO PRESET VERSIONS

0.5" HIGH LIQUID CRYSTAL DISPLAY OR 0.4" HIGH LED DISPLAY

ACCEPTSINPUT COUNT RATE UP TO 2500 CPS

BI-DIRECTIONAL COUNTING

SOLID-STATE CURRENT SINK OUTPUT(S)

FORM C RELAY OUTPUT(S)

PROGRAMMABLE TIMED OUTPUT (0.01 sec to 99.99 sec.)

SIMPLE FRONT PANELFOR PROGRAMMING EASE

FRONT PANEL PROGRAMMABLE DECIMAL POINTS

MEETS DIN PANEL MOUNT SPECIFICATIONS

REMOTE RESET CAPABILITY

NON-VOLATILE MEMORY (E2PROM)

ON-LINE SELF-TEST
DESCRIPTION
TheLibra Series of presettable counters is an economical and reliable solution
to one or two preset level requirements. The LIBC1 and LIBC1E are the single
preset versions and the LIBC2 and LIBC2E arethe dual preset versions. All four
units have a solid-state output and a Form C relay output for each preset. These
units feature input configuration programmability, a full complement of controlinputs, programmable timed outputs, non-volatile memory, and many other
features which will satisfy most any single or dual preset level requirement.
The Libra counters have two main countingactions, Reset to Zero (RTZ) and
Reset to Preset (RTP). With RTZ, the counter resets to zero and counts up (if
UP/DN terminal is at high level) and activates the outputs when the preset
value(s) arereached. When RTP is used, the unit starts at the preset value and
counts down (if the UP/DN terminal is at low level) and activates the output
when zero is reached. For the 2-preset version, the countstarts at preset 2 and
counts toward zero. Output 1 fires when preset 1 value is reached and output 2
fires when the count reaches zero. There are eight modes of operation for the
single preset unitand sixteen modes of operation for the dual preset unit.
The timed output is programmed through the front panel buttons and can be
programmed from 0.01 sec. to 99.99 sec. (The unit’s timed output...