Advertisement
135-04-229-021-EH-0314.pdf
1
JX-P420 Series Installation Guide
*
Mounting screws must accommodate this distance.
Mounting
1. To maximize wire rope life, align trans ducer with mov ing el ement so that wire rope exits
p
e
p r
e
n
d
c i
l u
r a
o t
a
x
s i
f o
i w
e r
o r
2. Use Table A or B to determine wire rope exit lo cation relative to trans ducer mount ing
holes.
3. Mount unit with two #8 or two M4 (or smaller) pan head ma chine screws. On units with
ranges of 60" (1500 mm) or 80" (2000 mm), place spac er blocks under mount ing pods as
shown in Fig ure 2. Torque 8-32 screws to 8 lb-in max imum. Torque M4 screws to 0.80 N-m
maximum.
Rotation of Wire Rope Exit
T
o
o r
a t
e t
i w
e r
o r
p
e
e
t i x
o l
c
t a
o i
a nism to mounting hous ing. Note that align ment marks on mech a
R
o
a t
e t
h
o
u
s
n i
g
o t
d
e
i s
e r
d
p
o
t i s
Replacement Wire Rope Wipers
The JX transducer contains wire rope dust wipers which are lo cated just beneath the wire
rope exit location. Pe
r
o i
d
ic, re placement of the dust wipers may be nec essary de pend ing
u
p
o
n
h t
e
a
m
o
u
t n
f o
d
u
t s
n i
h t
To access the dust wipers, remove the dust wip er cover by plac ing a small blade screw-
driver into the slot as shown in Fig ure 4 and pry upward while squeezing the ends of
the cov er. The wip ers may be removed with twee zers and cleaned or re placed. The
replacement wiper kit which contains six pair of prelubricated wip ers is part
n
u
m
b
r e
1
0
1
9
. 8
To install replacement wipers, place a wiper into wiper open ing on both sides of the wire
rope. Press wiper cover into place until detented.
4 to 20 mA Adjustment
The 4 to 20 mA output transducer is a 2-wire, loop pow ered de vice. The transducer,
p
o
w
r e
s
u
p
p
, y l
a
n
d
c
r u
e r
t n
m
o
For best noise immunity, use twisted pair shielded cable between each of the electrical
components. The shield of the cable should be open at the transducer and ground ed at
the electrical interface.
The minimum supply voltage is a function of total loop resistance. It may be
calculated us ing the formula: V = (0.02 x Load Res.) + 9 VDC. Supply Volt-
age may also be determined from the graph at right.
To adjust the zero and span, fi rst remove the two Phillips head screws from the
potentiometer access holes located on the end of the transducer (see Fig. 6).
Vi
s
u
l a
ly locate the adjustment screws on each potentiometer. The screws are
very small and will require a small blade type screwdriver (.06" (1.5mm) max.
blade width x .016" (.4mm) max. blade thickness) for the adjustment. Extend
the wire rope of the transducer to the desired zero po sition (must be with in 0% to
30% of range) and adjust the Zero potentiometer to give a 4 mA output. Extend
the wire rope to the de sired max imum position (must be within 80% to 100% of range) and adjust the Span
potentiometer for the maximum out put cur rent of 20 mA. Since the zero and span controls are somewhat
interactive, recheck the zero and span settings and adjust as necessary. Insure that a sealing o-ring (see Fig.
6) is on each of the two Phillips head screws. Thread each screw into each potentiometer access hole until
the head of the screw bottoms against the raised shoulder. Do not tighten the screw against the shoulder.
Table A
Nominal Cable
Range
Dim A
Designator
(in)
(mm)
(oz)
2, 10
.36
9.1
16
2.8, 15, 30
.50
12.7
14
3.8, 20, 40
.66
16.7
11
4.7, 25, 50
.82
20.8
8
Ranges to 50" (1250 mm)
Figure 1
p
e
e
t i x
h
o
e l
i w
h t
n i
° 2
s (
e
e
F
g i
u
e r
3
. )
, n
o l
o
s
e
n
o f
r u
c s
e r
w
s
i (
e t
m
, 1
F
g i
u
e r
s
1
&
n
s i
m
o i
n
a
n
d
o t
q r
u
e
c s
e r
w
s
o t
50 oz-in (0.35 N-m).
e
o
p
r e
t a
n i
g
e
n
i v
o r
n
m
e
n
. t
n
t i
r o
m
u
t s
b
e
c
o
n
n
e
c
e t
d
n i
s
r e
e i
s
a
i s
u l l
t s
Tension
(N)
4.4
3.9
3.1
2.2
*
M
o
u
t n
n i
g
c s
e r
w
s
Loop Circuit
2˚ Max
Z
) 2
w
h
c i
h
e r
a t
n i
m
e
c
- h
o
c c
r u
t a
4
° 5
n i
e t
v r
a
. s l
Figure 3
Connector Wiring
A
a
side of mating connector.
a r
e t
d
n i
i F
. g
. 5
Figure 4
E
Specifi cations
Output ........................................ 4 to 20 mA
Excitation Voltage ...................... 9 to 35 VDC
Load Resistance (Total Loop) .... See Graph
Min. Supply Voltage ................... (.02 x Load Res.) + 9
Linearity:
Ranges to 4.7" ........................... ±1.0% Full Scale
10" to 25" range ......................... ±0.5% Full Scale
30" to 80" range ......................... ±0.25% Full Scale
Operating Temperature.............. -15°C to 60°C
JX-P420_1630-21469-0021-E-0314
Table B
Range
Dim A
Designator
(in)
(mm)
6, 60
.98
8, 80
1.28
Ranges to 80" (2000 mm)
Figure 2
m
u
t s
a
c c
o
m
m
o
d
a
e t
h t
s i
d
s i
a t
n
c
Figure 5
e
o r
&
S
p
a
n
P
o
e t
n
tiometer Access
s
v
e i
w
e
d
o
n
t
a r
n
s
d
u
c
r e
n
d
o
n
c
a
b
e l
t a
a t
c
h
m
e
t n
NC = No Connection
e l
c
r t
c i
l a
C
a
b
e l
W
r i
n i
g
NC = No Connection
Nominal Cable
Tension
(oz)
(N)
24.9
10
2.8
32.5
8.6
2.4
. e
Figure 6
Figure 7
Figure 8
Advertisement
Table of Contents
Summary of Contents for Pewatron JX-P420 Series
- Page 1 135-04-229-021-EH-0314.pdf JX-P420_1630-21469-0021-E-0314 JX-P420 Series Installation Guide Table A Table B Nominal Cable Nominal Cable Range Dim A Range Dim A Tension Tension Designator (in) (mm) Designator (in) (mm) (oz) (oz) 2, 10 6, 60 24.9 2.8, 15, 30 12.7 8, 80 1.28...
- Page 2 Headquarter Switzerland: Offi ce Germany: Pewatron AG Pewatron Deutschland GmbH Thurgauerstrasse 66 Edisonstraße 16 CH-8050 Zurich D-85716 Unterschleißheim Phone +41 44 877 35 00 Phone +49 89 374 288 87 00 info@pewatron.com info.de@pewatron.com We are here for you. Addresses and Contacts.
Need help?
Do you have a question about the JX-P420 Series and is the answer not in the manual?
Questions and answers