
AlternateWire Rope Exit
E1 E2 E3
NOTE
Mount with Ø.25 or M6
Socket Head Cap Screws.
AlternateWire Rope Exit
NOTE
Mount with Ø.50 or M12 Socket Head Cap Screws.
RANGE “A” “B” “C”
2”, 10” 1.12 (28.4) 1.79 (45.5) 1.21 (30.7)
3”, 15”, 30” .96(24.4) 1.95 (49.5) 1.37 (34.8)
4”, 20”, 40” .80 (20.3) 2.11 (53.6) 1.53 (38.9)
5”, 25”, 50” .64 (16.3) 2.27 (57.7) 1.69 (42.9)
60” .49 (12.4) 2.42 (61.5) 1.84 (46.7)
80” .25 (6.4) 2.66 (67.6) 2.08 (52.8)
AlternateWire Rope Exit
Note: Dimensions in
brackets are millimeters.
Dimensional Information
HX-VP420 Series Installation Guide
Wiring and Circuit Diagram
Velocity
The tachometer is self energizing and requires
no input voltage.
shieldedcablebetweenthetransducerandthe
electrical interface. The shield of the cable
shouldbeopen at the transducerandgrounded
at the electrical interface.
With small blade type screwdriver (.105"
max. blade width X .023" max. blade thick-
ness), adjust the Zero and Span controls on
the transducer to set the 4 and 20 mA output
limits. Note: The Zero and Span controls
are somewhat interactive and may require
several iterations to obtain the desired zero
and maxi-
Model HX-VP420
The 4 to 20 mA output transducer is a 2-wire,
loop powered device. The transducer, power
supply, and current monitor must be connected
in series as illustrated above.
The minimum supply voltage is a function of
total loop resistance. It may be calculated using
the formula:
V(Min.)= (0.02 x Load Res.) + 9 VDC
It may also be determined from the accom-
panying graph, shown at right.
Whenmounting,insurethatthebaseplate of the
transducerisgrounded to earthground. Forbest
noise immunity, use twisted pair
mum settings. Extendthe transducer's cable (on
angular position transducers, rotate shaft) to the
desired zero position (must be within 0% to 30%
of range). Adjust the Zero control so that the
outputcurrentis4 mA.Thenextendthecable(on
angular position transducers, rotate shaft) to the
desired maximum position (must be within 80%
to 100% of range). Adjust the Span control for
maximum output current of 20 mA. Recheck the
zerosettingandadjustifnecessary.Recheckthe
Span setting and readjust if necessary.
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