DSPM UniMeasure HX-VP420 Series Installation Manual

HX-VP420 Series Installation Guide
Model HX-VP420
The 4 to 20 mA output transducer is a 2-wire,
loop pow ered de vice. The transducer, pow er
supply, and cur rent monitor must be con nect ed
in series as illustrated above.
The minimum supply voltage is a function of
total loop resistance. It may be calculated us ing
the formula:
V(Min.)= (0.02 x Load Res.) + 9 VDC
It may also be determined from the ac com -
pa ny ing graph, shown at right.
When mounting, insure that the baseplate of the
transducer is grounded to earth ground. For best
noise immunity, use twisted pair
RANGE
Note: Di men sions in
2", 10"
brackets are mil li me ters.
3", 15", 30"
4", 20", 40"
5", 25", 50"
60"
80"
Alternate Wire Rope Exit
E1
Via Paolo Uccello 4 - 20148 Milano
Tel +39 02 48 009 757 Fax +39 02 48 002 070
Wiring and Circuit Diagram
shielded cable between the transducer and the
electrical interface. The shield of the cable
should be open at the transducer and ground ed
at the electrical interface.
With small blade type screwdriver (.105"
max. blade width X .023" max. blade thick-
ness), ad just the Zero and Span con trols on
the trans duc er to set the 4 and 20 mA output
limits. Note: The Zero and Span con trols
are some what in ter ac tive and may re quire
several it er a tions to ob tain the de sired zero
and maxi-
Velocity
The tachometer is self en er giz ing and requires
no input voltage.
Dimensional Information
NOTE
Mount with Ø.25 or M6
Socket Head Cap Screws.
Alternate Wire Rope Exit
"A" "B" "C"
1.12 (28.4) 1.79 (45.5) 1.21 (30.7)
.96(24.4) 1.95 (49.5) 1.37 (34.8)
.80 (20.3) 2.11 (53.6) 1.53 (38.9)
.64 (16.3) 2.27 (57.7) 1.69 (42.9)
.49 (12.4) 2.42 (61.5) 1.84 (46.7)
.25 (6.4) 2.66 (67.6) 2.08 (52.8)
E2 E3
mum settings. Ex tend the trans duc er's cable (on
an gu lar position transducers, ro tate shaft) to the
desired zero po si tion (must be with in 0% to 30%
of range). Adjust the Zero con trol so that the
output cur rent is 4 mA. Then extend the ca ble (on
angular position trans duc ers, ro tate shaft) to the
de sired max i mum position (must be within 80%
to 100% of range). Ad just the Span con trol for
max i mum out put cur rent of 20 mA. Re check the
zero set ting and adjust if nec es sary. Re check the
Span setting and readjust if nec es sary.
NOTE
Mount with Ø.50 or M12 Socket Head Cap Screws.
Alternate Wire Rope Exit
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