Red Lion LMPC-AMPLIFIED MAGNETIC PICKUP - Manual

1
4.0 (101.6)
3.0 (76.2)
.750±.005 DIA.
304 S.S. CASE
FLUSH MOUNT
.107 (2.7) DIA.
POLE PIECE
NEOPRENE STRAIN
RELIEF BOOT
.874 (22.2) DIA.
3-WIRE CABLE
INTEGRALLY POTTED
WIRE COLOR CODE
RED = +VDC
BLK = COMMON
WHT = NPN O.C. OUTPUT
  DETECTS STEEL SENSING GEARS OR OTHER MOVING
FERROUS TARGETS
  BUILT-IN PULSE SHAPING AMPLIFIER PROVIDES ULTRA-LOW-
SPEED OPERATION WITH LARGE AIR GAPS
  TWO OUTPUT SIGNAL VERSIONS
  3/4" DIAMETER STAINLESS STEEL CASE
  EPOXY ENCAPSULATED SENSOR FOR OIL, DIRT & MOISTURE
RESISTANCE
DESCRIPTION
LOGIC MAGNETIC PICKUPS (LMP’s) provide sensing sensitivities
several orders of magnitude greater than standard magnetic pickups when
detecting moving ferrous targets. By locating a high gain pre-amplifier & signal
processing circuit “inside” the mag pickup housing, larger airgaps and slower
target surface speeds can be achieved thereby greatly expanding application
versatility as compared with conventional mag pickups. In addition, these units
have excellent noise immunity and a frequency response to 10 KHz. The stainless
steel sensing pole is mounted flush to the plastic sensing face allowing greater
ease of setting airgaps and eliminating snagging the pole with a moving target.
Two output types are available (see ordering information). The NPN Open
Collector Transistor Output unit provides a negative going current sinking
output with the approach of a ferrous target and is current limited to 40 mA.
The Transistor Emitter-Follower Output unit provides positive going 5 V
pulses with the approach of a ferrous target and can source 20 mA of load
current. The Open Collector units are available with either an integrally potted
10, 25 or 50 foot 3-wire shielded cable with neoprene strain re lief boot or a
polarized 3-pin 5/8"-24 threaded connector for quick change versatility (see
following page for mating extension cable). The Emitter-Follower output unit is
available in the 3-pin connector version only.
SPECIFICATIONS
1. SUPPLY VOLTAGE (all versions): +9 to +30 VDC @ 25 mA max.
2. NPN OPEN COLLECTOR OUTPUT (LMPC & LMPCC): V
OH
= 30
VDC max.; V
OL
= 1 Vmax. @ 30 mA, output current is limited to 40 mA.
3. EMITTER-FOLLOWER OUTPUT (LMPEC): +5 V signal level @ 20
mA max. current sourcing.
4. OPERATING FREQUENCY (all versions): 10 KHz max.
5. OPERATING TEMPERATURE: -18°C to +60°C (0°F to +140°F)
6. CONSTRUCTION: Epoxy encapsulated in 0.750"
0.005" dia. #304
stainless steel case. Plastic sensing face with stainless steel sensing pole.
7. OUTPUT CABLE (LMPC only): Integrally potted 10, 25 or 50 ft. PVC
jacketed, 3-wire 22 AWG conductors, with stranded shield and 100% foil
shield coverage.
RED = +VDC, BLK = COMMON, WHT = NPN O.C. OUTPUT
8. OUTPUT CONNECTOR (LMPCC & LMPEC): Polarized 5/8"-24 thread
3-pin connector.
A = +VDC, B = COMMON, C = SIGNAL OUTPUT
LOGIC MAGNETIC PICKUPS - SUPER-SENSITIVE MAGNETIC PICKUPS WITH CURRENT
SINKING OUTPUT OR CURRENT SOURCING OUTPUT
DIMENSIONS In inches (mm)
LMPC LMPCC & LMPEC
CONNECTOR BACK VIEW
SENSING
TARGET
SHIELD CABLE FOR LMPC
CONNECT SHIELD TO COMMON AT
INPUT OF INDICATOR
9 - 30 VDC @ 25mA
OUTPUT:
V = 30VDC MAX
OH
COMMON
AMP
O.C.
NPN
LMPC = RED
LMPCC = PIN A
OL V = 1V MAX @ 30mA
LMPCC = PIN B
LMPC = BLACK
AIR-GAP
MAG. PICKUP
LMPC & LMPCC
LMPC = WHITE
LMPCC = PIN C
SENSING
TARGET
PIN A: 9 - 30 VDC @ 25mA MAX
PIN C: 5V SIGN. LEVEL @
PIN B: COMMON
AMP
AIR-GAP
MAG. PICKUP
LMPEC
20mA MAX. SOURCING
1 5 10 50 100
Surface Speed (in/sec)
0.000
0.050
0.100
0.150
0.200
Max. Air-Gap (inches)
Max. Air-Gap vs. Surface Speed
(Typical Performance for Various Diametrical Pitch (D.P.)Gear Sizes)
10 D.P.
12 D.P.
16 D.P.
20 D.P.
24 D.P.
B
A
.750±.005 DIA.
304 S.S. CASE
FLUSH MOUNT
.107 (2.7) DIA.
POLE PIECE
5/8"-24 THREADED POLARIZED
3-PIN CONNECTOR
DIMENSIONS
MODEL A B
LMPCC 3.5" (88.9) 4.125" (104.8)
LMPEC 3.0" (76.2) 3.625" (92.1)
C=SIGNAL
OUTPUT
B=COMMON
POLARIZING
C A
B
KEY
A=+VDC
INPUT
Bulletin No. LMP-G
Drawing No. LP0166
Released 12/12
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net