Dytran Instruments 1212V IEPE Series User manual

Dynamic Transducers and Systems
21592 Marilla St. • Chatsworth, CA 91311 • Phone [phone]
www.dytran.com • e-mail: [email protected]
OG1212V.docx
REV A, ECN 12640, 03/29/16
OPERATING GUIDE
MODEL SERIES 1212V IEPE FORCE SENSOR
This manual includes:
1) Specifications, Model Series 1212V
2) Outline/Installation drawing 1212V
NOTE: IEPE is an acronym for Integrated Electronics Piezoelectric types of low impedance voltage
mode sensors with built-in amplifiers operating from constant current sources over two wires. IEPE
instruments are compatible with other comparable systems labeled LIVMTM.

REV A, ECN 12
INTROD
U
T
sensors
a
over a ra
n
over a wi
d
T
high com
p
analogou
s
input forc
e
compres
s
A
the instru
m
voltage,
g
impedan
c
immunity.
eliminate
and conv
e
M
integral c
a
The ampl
DESCRI
P
R
of Model
S
T
hollow ra
d
located a
t
C
533, 03/29/16
U
CTION
he series 12
1
a
re designed
t
n
ge of 500 L
b
d
e frequency
hin x-cut qua
p
ressive prel
o
s
to dynamic
e
. The outpu
t
s
ion and neg
a
A
n integral IC
m
ent, conver
t
g
enerated by
t
c
e voltage ou
t
Additionally,
the need for
a
e
rter.
M
odel series 1
a
ble that ter
m
ifier is locate
d
P
TION
R
efer to Figur
e
S
eries 1212
V
he internal a
m
d
ial housing
a
t
the end of t
h
F
C
ROSS SEC
T
OPER
A
1
2V low profil
t
o measure d
b
s to 5,000 L
b
range.
rtz crystals h
e
o
ad, provide
a
force inputs
w
t
polarity is p
o
a
tive-going fo
r
unity gain a
m
t
s the very hi
g
t
he quartz cr
y
t
put signal wi
t
these built-i
n
a
n external c
212V featur
e
m
inates into a
d
within the h
o
e
1 below for
V
force senso
r
m
plifier is mo
u
a
nd the integ
r
h
is housing.
F
igure 1
T
ION, MOD
E
ATING INST
IEPE DY
N
e ring style f
o
ynamic force
s
b
s full scale a
e
ld under ve
r
a
voltage out
p
w
hen stresse
d
o
sitive-going
f
r
tension.
m
plifier built w
g
h impedanc
e
y
stals, to a lo
w
t
h excellent n
n
electronics
a
harge amplifi
e
e
s a 10 foot
BNC conne
c
o
using.
a cross secti
o
r
s.
u
nted within
t
r
al cable is
E
L 1212V
RUCTIONS
M
N
AMIC FOR
C
o
rce
s
nd
r
y
p
ut
d
by
f
or
ithin
e
w
oise
a
lso
e
r
c
tor.
o
n
t
he
u
s
s
m
d
T
R
C
r
p
t
c
2
i
M
ODEL SER
C
E SENSOR
S
Mod
e
u
se where ra
d
s
ome drop-s
h
s
hafts or pus
h
m
achine for t
Refe
r
127-1212V1,
d
imensioned
T
HEORY OF
R
efer to Figu
SY
S
Figu
r
C
able/Power
r
eadout instr
u
p
ower unit ja
c
The i
t
he sensor a
n
c
harge, Q. T
h
2
) converts t
h
i
s governed
b
V
wher
e
IES 1212V
S
e
l series 121
2
d
ial space is
h
ock testers
o
h
rods where
t
he electrical
c
r
to the Outli
n
supplied wit
h
outline of M
o
OPERATIO
N
re 2, below.
FIG
U
S
TEM SCHE
M
r
e 2 illustrate
s
Unit measur
e
u
ment is con
n
c
k at the righ
t
nput force st
r
n
d produces
a
h
e total shun
t
h
is charge to
b
y the electro
s
Q
V
= ----------
C
e
: Q = total
C = total
s
cryst
a
V = resul
t
cryst
a
2
V is recom
m
not a proble
m
o
r when instr
u
t
here is spac
e
c
onnector to
e
n
e/Installatio
n
h
this manual
o
del series 1
2
N
U
RE 2
M
ATIC DIAG
R
s
the typical
S
e
ment syste
m
n
ected directl
y
t
hand side o
f
r
esses the cr
y
a
n analogous
t
capacitance
a voltage, V.
s
tatic equati
o
Eq.
1
electrostatic
c
s
hunt capaci
t
a
ls,
t
ant voltage
a
a
ls
2
m
ended for
m
, such as in
u
menting
e
around the
e
xit radially.
n
drawing,
, for a
2
12V.
R
AM
S
ensor/
m
. The
y
to the
f
Figure 2.
y
stals inside
electrostatic
(see Figure
This process
o
n:
1
c
harge,
t
ance across
a
cross
2
s

REV A, ECN 12
T
gate of th
e
impedan
c
orders of
Ohms.
T
1212V is
s
mA) from
appears
s
internal a
m
DC) is bl
o
the dyna
m
instrume
n
SIGNAL
P
C
Figure 1)
voltages,
output si
g
SENSITI
V
T
fixed at ti
m
The exac
t
calibratio
n
Consult t
h
with this
g
ranges fo
INSTALL
A
R
1212V, s
u
T
prepare
a
11/16” m
flat to .00
1
sensor is
surface.
U
to determ
B
inspect th
which ma
and clea
n
mating s
u
no particl
e
between
t
mating s
u
modify th
e
533, 03/29/16
his voltage,
V
e
MOSFET i
n
c
e level is de
c
magnitude, i.
he source te
r
s
upplied with
the power u
n
s
uperimpose
d
m
plifier. This
o
cked by the
c
m
ic signal is
p
n
t via the Out
p
P
OLARITY
C
ompressive
f
will produce
p
while tensio
n
g
nals.
V
ITY
he voltage s
e
m
e of manuf
a
t
sensitivity o
f
n
certificate s
h
e chart on t
h
g
uide for avai
r each model
A
TION
R
efer to Outli
n
u
pplied with t
h
o mount mo
d
a
flat smooth
m
inimum in di
a
1
TIR for bes
t
mounted by
t
U
se Outline/I
n
ine which is
t
efore installi
n
e mating sur
f
y become lo
d
n
if necessary
u
rfaces meet
s
e
s of foreign
m
t
hem. Foreig
n
u
rfaces could
e
sensitivity
o
V
, is connect
e
n
put IC ampli
f
c
reased by a
p
e., from 1 Te
r
minal of the
I
constant cu
r
n
it, and the fo
d
upon the D
C
bias voltage
c
ircuitry in th
e
p
assed along
p
ut jack.
f
orces on the
s
p
ositive-goin
g
n
produces n
e
e
nsitivity of e
a
a
cture and ca
f
each senso
r
upplied with
e
h
e specificati
o
lable nomina
l
.
n
e/Installation
h
is guide.
d
el 1212V, it i
s
m
ounting sur
f
a
meter. This
s
t
results. Ma
k
t
he base and
n
stallation dr
a
he proper m
o
n
g the senso
r
f
aces for any
d
ged betwee
n
. It is importa
s
quarely and
m
atter of any
n
particles in
c
damage the
s
o
f the sensor.
e
d across the
f
ier where its
p
proximately
rraohm to 10
0
I
C amplifier i
n
r
rent (from 2
t
rce signal
C
bias level o
f
(about +10
V
e
power unit
a
to the reado
u
s
e sensors (
s
g
output sign
a
e
gative-going
a
ch sensor is
nnot be chan
r
is given on
a
e
ach sensor.
o
n sheet sup
p
l
sensitivities
drawing 127
s
necessary
t
f
ace that is
s
urface shoul
d
k
e sure that t
h
not by the to
a
wing 127-12
o
unting surfa
c
r
into a force j
foreign parti
c
n
these surfa
c
nt that the
intimately wi
t
kind include
d
c
luded betwe
e
s
ensor and/o
10
0
n
the
t
o 20
f
the
V
olts
a
nd
u
t
s
ee
a
l
ged.
a
p
lied
and
-
t
o
d
be
h
e
p
12V
c
e.
oint,
c
les
c
es
t
h
d
e
n
r
s
g
s
s
O
t
i
t
m
s
w
B
b
c
i
s
c
f
s
l
h
p
L
i
a
Whe
n
s
quare and c
g
rease on th
e
s
ensor in pla
c
s
ecure.
O
PERATIO
N
A
fter
t
o the power
i
nternal coup
l
t
he sensor bi
a
m
ay be used
s
ensor bias
v
w
ithin the po
w
B
IAS MONI
T
Most
b
ias monitori
n
c
heck for nor
i
ndicate in th
e
s
ensor and c
a
c
able is ope
n
f
ull scale (Op
s
horted, the
m
l
imit (Short).
This
f
h
andy troubl
e
p
roblems or
t
L
OADING C
O
Whe
n
i
s important t
o
a
cross the fo
r
ILLUST
R
n
you are sat
i
lean, place a
e
mating surf
a
c
e, torquing
2
N
connecting t
h
unit, wait se
v
l
ing capacito
r
a
s voltage to
before comp
v
oltage since
t
w
er unit.
T
OR METER
Dytran pow
e
n
g voltmeter
s
mal system
o
e
mid-scale a
a
ble are func
t
n
or disconne
c
en) and if th
e
m
eter will ind
i
f
eature pres
e
e
shooting to
o
t
o verify nor
m
O
NSIDERAT
n
applying lo
a
o
note that th
r
ce sensitive
FIG
U
R
ATING OF
F
i
sfied that th
e
thin layer of
s
a
ces and thr
e
2
5 to 30 lb-in.
h
e cable fro
m
v
eral seconds
r
s to fully cha
r
stabilize. Th
e
lete stabiliza
t
t
he DC bias i
e
r units featur
s
on the front
o
peration. Thi
rea (Normal)
t
ioning norm
a
c
ted, the met
e
e
cable or se
n
i
cate to the l
e
e
nts the user
w
o
l when looki
n
m
al operation.
IONS
a
ds to the for
c
e load is dist
r
face of the f
o
U
RE 3
F
-CENTER L
O
3
e
surfaces ar
e
s
ilicone
e
ad the force
of torque to
m
the sensor
for the
r
ge and for
e
instrument
t
ion of the
s blocked
e self test
panel to
s meter will
when the
a
lly. If the
e
r will read
n
sor is
e
ft of the scal
e
w
ith a very
n
g for system
c
e sensor, it
r
ibuted evenl
y
o
rce sensor.
O
ADING
3
e
e
y

REV A, ECN 12
F
way to a
p
potential
a
illustrate,
improper
w
I
n
force sen
s
hydraulic
force be
e
sensor.
TENSILE
F
the 1212
V
through t
h
T
that the l
o
without b
e
A
making t
e
design of
sensors,
t
the prelo
level is e
x
preload o
f
could cre
a
equipme
n
R
combinati
forces. F
o
500 lbf a
n
300 Lbs.,
200 Lbs.
F
533, 03/29/16
igure 3 is int
e
p
ply loads to t
a
pplications,
t
in the most
b
w
ays to appl
y
n
the illustrati
o
s
or is being l
o
or pneumati
c
e
venly distrib
u
LOADING
igure 4 illustr
a
V
in tension.
A
h
e center of t
h
F
PROPER
T
he arrangem
e
o
ad is applied
e
nding mom
e
A
n important
p
e
nsile measu
r
the internal
p
t
he maximu
m
ad force of t
x
ceeded, the
s
f
the force lin
a
te a danger
o
n
t if this is no
t
R
emember th
a
on of both st
a
o
r example, if
n
d the sensor
the maximu
m
e
nded to illus
t
he sensor. D
u
t
he figure sh
o
b
asic sense, t
h
y
loads.
o
n chosen in
o
aded dyna
m
c
ram. It is im
p
u
ted, centrall
y
a
tes one pro
p
A
gain, the for
c
h
e sensor as
F
IGURE 4
T
ENSILE LO
A
e
nt shown in
centrally on
t
e
nts and tran
s
p
oint to keep
i
r
ements, due
p
reload struct
m
tensile for
c
he force lin
k
s
ignal may cl
k may sudde
n
o
us situation
f
fully underst
o
a
t the maxim
u
a
tic and dyn
a
the force lin
k
is supportin
g
m
dynamic r
a
t
rate the pro
p
u
e to the vari
o
o
uld only
h
e proper an
d
Figure 3, the
m
ically by a
p
ortant that t
h
y
, to the forc
e
p
er way to lo
a
c
es must tra
v
shown.
A
DING
Figure 4 ens
t
o the sensor
s
verse loadin
g
i
n mind when
to limits in th
e
ure of the
c
e is limited
k
used. If this
ip and the
n
ly release.
T
f
or personnel
o
od.
u
m force is th
a
mic tensile
k
is preloade
d
g
a static loa
d
a
nge possibl
e
p
er
o
us
d
h
e
e
a
d
v
el
ures
g
.
e
to
T
his
and
e
d
to
d
of
e
is
Q
m
i
w
a
i
c
m
5
a
f
b
u
e
i
t
h
r
u
D
M
p
o
t
c
r
s
F
Q
UASI-STA
T
The
d
1212V is lon
g
m
easuremen
i
mportant to
c
w
ithin the m
e
a
ny quasi-st
a
A
s p
r
i
n the IEPE s
e
c
able. This c
a
m
A of curren
t
5
), below.
POWER UN
The
v
a
cting upon t
h
f
ixed bias vol
t
Most
b
ias voltage i
u
F) within th
e
e
ffectively re
t
The
p
i
nstrument p
u
t
erminal of th
h
igh pass filt
e
r
esponse of t
u
nsuitable fo
r
D
ytran powe
r
M
egohm) is
p
p
ower unit (
R
o
f DC offset
w
t
he 10 uF ca
p
c
ircuit. This f
u
r
aising the lo
w
s
till.
T
IC CONSID
E
d
ischarge tim
g
enough to
a
ts to be perf
o
c
onsider othe
e
asurement s
y
a
tic measure
m
r
eviously stat
e
e
nsor is pow
e
a
ble supplies
t
from the po
w
FIG
U
IT DECOUP
L
v
oltage prod
u
h
e crystals is
t
age of the in
power units
a
s “blocked” b
e
power unit
a
t
urns the sig
n
p
roblem with
u
ts a resistiv
e
is coupling c
a
e
r. This filter l
he power uni
t
r
quasi-static
r
units, a “pul
l
p
laced acros
s
R
efer to Figur
e
w
hich would
r
p
acitor used i
u
rther exacer
w
frequency
c
E
RATIONS
e constant o
f
a
llow near sta
t
o
rmed. Howe
v
r coupling ti
m
y
stem which
c
m
ents.
e
d, the integ
r
e
red by a sin
g
anywhere fr
o
w
er unit. (Re
f
U
RE 5
L
ING CONSI
D
u
ced by a dy
n
superimpos
e
ternal IC.
a
re AC coupl
e
y a capacitor
a
s shown in
F
n
al level to ze
r
this is that th
e
e
load at the
o
a
pacitor whic
h
imits the low
t
making the
measureme
n
l
down:” resis
s
the output j
a
e
5) to reduc
e
r
esult from le
a
n the output
d
bates the pr
o
c
ut-off freque
4
f
Model serie
s
t
ic
v
er, it is
m
e constants
c
ould affect
r
al IC amplifi
e
g
le coaxial
o
m 2 to 20
f
er to Figure
D
ERATION
S
n
amic force
e
d upon the
e
d, i.e., the
(usually 10
F
igure 5. This
r
o volts.
e
readout
o
utput
h
forms a
frequency
system
n
ts. In most
tor (usually 1
a
ck of the
e
the amount
a
kage from
d
ecoupling
o
blem by
ncy higher
4
s
e
r
S

REV A, ECN 12
A
has a 1
M
parallel w
place a 5
0
coupling
t
TC
=
The low f
r
f
l
T
relatively
with 1%
a
measure
m
of the dis
c
W
calculate
T
time of 0.
5
applicatio
difficult to
oscillosc
o
which do
e
rather a
D
T
unit (Ref
e
Model 41
1
applied t
o
variable
n
negative
t
adjusting
amplitud
e
sensor, t
h
to zero v
o
limited on
4115B is
v
533, 03/29/16
A
s an exampl
e
M
egohm input
ith the 1 Meg
0
0-kΩload a
c
t
ime constan
t
=
RC = 500,
0
r
equency cut
o
1
= ------------
2π
R
he first 10%
o
linear so in o
a
ccuracy, the
m
ent of a stat
c
harge TC.
W
ith a dischar
the time to t
a
T = 1% x
his result sta
t
5
seconds to
n of the stati
c
do without t
h
o
pe. A better
s
e
s not use a
d
D
C coupled v
o
he Dytran M
o
e
r to simplifie
d
1
5B, the inpu
o
a DC coupl
e
n
egative DC
v
t
erminal of th
e
this negative
e
of the positi
v
h
e output of t
h
o
lts, and with
ly by the TC
o
v
irtually unaf
f
e
, if your rea
d
resistance.
T
ohm pull do
w
c
ross the 10
u
(TC) is:
0
00 x 10uF
o
ff is:
.16
= -----------
=
R
C 5
o
f the RC dis
c
rder to make
total elapsed
ic event mus
t
ge TC of 5 s
e
a
ke a 1% rea
d
5 = 0.5 Sec
o
t
es that we h
a
take the rea
d
c
force. This
o
h
e use of a di
g
s
olution is to
d
e-coupling c
a
o
ltage level s
h
o
del 4115B i
s
d
schematic,
F
t signal from
e
d summing
a
v
oltage is ap
p
e
summing a
m
voltage to e
x
v
e DC bias v
o
h
e 4115B ma
y
the discharg
e
o
f the senso
r
f
ected by rea
d
d
out instrume
n
T
his appears
w
n resistor to
u
F capacitor.
T
= 5 Seconds
=
.032 Hz
c
harge curve
a measurem
e
time of the
t
be less that
e
conds, we c
a
d
ing.
o
nds.
a
ve a maxim
u
d
ing after the
o
f course, is
v
g
ital storage
use a power
a
pacitor but
h
ifting circuit.
s
such a pow
e
F
igure 6). In
t
the sensor is
a
mplifier. A
p
lied to the
m
plifier. By
x
actly the
o
ltage from t
h
y
be set prec
e
time consta
r
itself. Model
d
out load.
n
t
in
T
he
is
e
nt
1%
a
n
u
m
v
ery
unit
e
r
t
he
h
e
isely
nt
C
d
d
c
b
r
o
a
t
s
r
d
M
p
a
d
I
w
(
i
d
R
a
p
SIM
C
ALIBRATI
O
Sinc
e
d
ynamic sen
s
d
ynamic (rap
c
alibrate the
m
Thes
b
y placing a
t
r
emoving it a
n
o
n a digital s
t
a
ccurate and
t
hese sensor
s
s
ensors be r
e
r
ecalibration
w
d
etermined b
M
AINTENA
N
The
s
p
recludes fie
l
a
problem wi
t
d
iscuss the p
I
f the instrum
e
w
ill be issue
d
(
RMA) numb
e
i
nstrument th
d
o not return
R
MA numbe
r
a
nd you will
b
p
roceed with
FIG
U
PLIFIED SC
H
O
N
e
the Model 1
s
ors, i.e., sen
idly changin
g
m
dynamicall
y
e sensors ar
e
t
raceable for
c
n
d capturing
t
t
orage oscillo
s
repeatable
m
s
. It is recom
m
e
turned to th
e
w
ith frequen
c
y the usage
f
N
CE AND RE
s
ealed const
r
l
d maintenan
c
t
h your sens
o
roblem with
o
e
nt must be
r
d
a Returned
M
e
r so we ma
y
rough the ev
a
an instrume
n
r
. There is no
b
e notified of
a repair.
U
RE 6
H
EMATIC, 4
1
212V sensor
s
sors designe
g
) forces, it m
a
y
.
e
calibrated
a
c
e on them, t
h
t
he resultant
s
cope. This i
s
m
ethod for ca
l
m
ended that
t
e
factory for p
c
y of calibrati
o
f
actor.
PAIR
r
uction of Ser
i
c
e. Should y
o
o
r, contact th
e
o
ne of our sal
r
eturned to th
M
aterials Au
t
y
better follo
w
a
luation proc
e
n
t without firs
t
charge for t
h
any charges
5
1
15B
s
are
d to measur
e
a
kes sense t
o
a
t the factory
h
en rapidly
step function
s
a very
l
ibration of
t
hese
eriodic
o
n
i
es 1212V
o
u experienc
e
e
factory to
es engineers
e factory, yo
u
t
horization
w
the
e
ss. Please
t
obtaining th
e
h
e evaluation
before we
5
e
o
e
s
.
u
e