Dytran 3122C User manual

Dynamic Transducers and Systems
21592 Marilla St. • Chatsworth, CA 91311 • Phone [phone]
www.dytran.com • e-mail: [email protected]
OG3122C.docx
REV F ECN 13551 07/10/17
OPERATING INSTRUCTIONS
MODEL 3122C & 3122C2
HERMETICALLY SEALED
CHARGE MODE ACCELEROMETERS
NOTE
Models 3122C and 3122C2 are essentially
similar instruments with the following exceptions:
The upper temperature limit for Model 3122C is
+375 degrees F while the upper temperature .
for Model 3122C2 is +500 degrees F. The
sensitivity of Model 3122C is 50 pC/g while
the 3122C2 is 15 pC/g. Most other
specifications are similar. (Check specification
sheet for other differences).
This manual includes:
(1) Outline/installation drawing 127-3122C
(2) General Guide to Charge Mode Accelerometers

REV F 07/11/1
7
INTRODUC
T
Mod
Models, the
5
Model 3122
C
temperature
3122C2 has
Both models
hermetically
-
welded cons
t
housing and
The
dense tungs
t
the piezoele
c
preload scre
w
This is so th
e
between ma
s
linearity low
a
DESCRIPTI
O
FIGURE 1
C
Figu
of Models 31
preloaded a
g
acceleration
piezo crystal
acceleration
INSTALLAT
Bot
h
use of a pro
v
stud. To mo
u
drill and tap
a
depth of .15
0
7
MODE
T
ION
el series 312
2
5
0 pC/g Mod
e
C
2. Model 31
2
limit of +375
an upper te
m
feature her
m
-
sealed 10-3
2
t
ruction. The
base is 316
L
seismic mas
s
t
en alloy, is ti
g
c
tric crystals
b
w
under hun
d
e
re is absolut
s
s, crystals a
n
a
nd the natu
r
O
N
C
ROSS SEC
T
re 1 is a repr
e
22C. The se
i
g
ainst the pie
z
into the bas
e
s giving accu
to charge ou
t
ION
h
Models are
d
v
ided 10-32
M
u
nt the 3122
C
a
10-32 mou
n
0
inch minim
u
L 3122C CH
A
2
C consists
o
e
l 3122C an
d
2
2C has an
u
ºF, while th
e
m
perature limi
m
etic sealing
b
2
connectors
a
metal used f
o
L
stainless st
e
s
, made from
g
htly preload
e
b
y means of
a
d
reds of pou
n
ely no relativ
e
n
d base kee
p
r
al frequency
T
ION OF MO
e
sentative cr
o
i
smic mass i
s
z
o crystals s
o
e
is transferre
d
rate transfer
t
put.
d
esigned for
m
M
odel 6200
m
C
/C2, it is ne
c
n
ting hole to
a
u
m perfect th
r
OPERATI
A
RGE MOD
E
o
f two
d
the 15 pC/g
u
pper
e
Model
t of +600 ºF.
b
y use of
a
nd laser
o
r the
e
el.
a very
e
d against
a
special
n
ds of force.
e
motion
p
ing the non-
high.
DEL 3122C
o
ss section
s
heavily
o
the
d
directly the
from
m
ounting by
m
ounting
c
essary to
a
minimum
r
ead in the
NG INSTRU
C
E
HERMETIC
center
inches
select
inch di
a
A
s a r
u
surfac
e
be. A
s
results
torque
applyi
n
OPER
A
to use
the ch
a
accele
signal
w
acquis
conne
c
and e
v
noise
c
10-32
t
BNC.
(
use is
t
conve
r
Mode
(
betwe
e
conve
r
charg
e
fixed s
e
A
gain,
to the i
MAIN
T
the ca
b
other
c
contac
shooti
n
returni
n
neces
s
factor
y
Return
C
TIONS
SEALED A
C
of a circular
m
in diameter.
To install M
(or prepare)
a
a
meter mou
n
u
le of thumb,
e
, the better t
s
urface flat to
for the high
f
Use the pr
o
the 3122C t
o
n
g the torque
A
TION
To operate
an electrost
a
a
rge mode o
u
rometer to a
l
w
hich may th
ition instrum
e
For laborat
o
c
ted to any vi
v
en with most
c
able such a
s
t
o 10-32 or t
h
(
xx is the len
g
A
recomm
e
t
he Dytran S
e
r
t the 3122C
t
(
LIVM) opera
t
e
n the 3122C
r
t the pC/G si
g
e
amplifiers a
r
e
nsitivities of
use low nois
e
nput of the c
h
T
ENANCE A
N
The only m
a
b
les and con
n
c
ontaminants
.
t the factory
f
n
g the syste
m
n
g the instru
m
s
ary.
Do not retu
r
y
without first
c
ed Material
A
C
CELEROM
E
m
ounting sur
f
odel 3122C,
a
flat surface
n
ting surface
o
the flatter th
e
he high freq
u
.001 TIR will
f
requency m
e
o
vided mounti
o
20 to 25 lb-i
to the .50 in
c
Model 3122
C
a
tic charge a
m
u
tput signal fr
o
l
ow-impedan
c
en be fed dir
e
e
nt(s).
o
ry use, the
3
bration type
c
electrostatic
s
the Dytran
M
h
e Model 601
9
g
th in feet).
e
nded charge
e
ries 4751B.
T
t
o Low Impe
d
t
ion. They ar
e
and the LIV
M
g
nal to mV/G
r
e available i
n
50, 20, 10 a
n
e
cable to co
n
h
arge amplifi
e
N
D REPAIR
a
intenance r
e
n
ections free
.
Should a pr
o
f
or assistanc
e
m
and for inst
r
m
ents should
r
n the instru
m
c
alling the fa
c
A
uthorization
E
TER
f
ace of at lea
s
it is necessa
r
to accept th
e
o
f the instru
m
e
mounting
u
ency respon
s
give excelle
n
e
asurements.
ng stud and
nches of torq
c
h hex.
C
, it is neces
s
m
plifier to con
o
m the
c
e voltage-m
o
e
ctly to the d
a
3
122C may b
e
c
harge ampli
f
types. Use a
M
odel 6013A
x
9
Axx, 10-32
t
amplifier for
f
T
hese instru
m
d
ance Voltag
e
e
mounted in
-
M
power unit
. These mini
a
n
four models
n
d 1 mV/pC.
n
nect the 31
2
e
r.
e
quired is to
k
from moistur
e
o
blem arise,
e
in trouble-
r
uctions in
this become
m
ent back to
t
c
tory to obtai
n
(RMA) numb
e
2
s
t .50
r
y to
e
0.44
m
ent.
s
e will
n
t
ue,
s
ary
vert
o
de
a
ta
e
f
ier
low-
x
x,
t
o
f
ield
m
ents
e
-
line
and
a
ture
with
2
2C
k
eep
e
and
t
he
n
a
e
r.