CTD-ES and CTD-ER Technical Manual
95F-6001-00 (February 2017)
page 5
EAR-Controlled Technology Subject to Restrictions Contained on the Cover Page.
CTD-E Options
Depth Rating – CTD-E units are available with the following depth rating: 500 meter (Delrin
housing) or 7000 meter (Titanium housing).
Pressure Sensor – The pressure sensor is available in the following ranges (in meters): 20,
100, 200, 350, 500, 667, 1000, 2000, 3000 or 7000.
ES - The CTD-ES models have the conductivity sensor and temperature sensor straight
mounted.
ER – The CTD-ER models have the conductivity sensor and temperature sensor mounted at a
right-angle.
Communications Port – The bulk head connector can be configured for the following com-
munications: RS-232 or RS-485.
NOTE. CTD options must be defined at time of order.
CTD-E part numbers use a seven field code - 111-22-3-444444-5555-6666-7.
Field 1
Field 2
Field 3
Field 4
Field 5
Field 6
Field 7
Fa
m
ily
Co
nd
uct
ivi
ty /
T
emp
er
at
ur
e /
Dept
h
Induc
tiv
e T
ec
hnol
og
y Ty
pe
ES
=
S
trai
ght
M
ount
ER
=
R
ight
A
ngl
e M
ou
nt
Ext
er
nal
S
en
so
r I
nt
er
fac
e
Bi
t 1
=
DR
=
D
ire
ct
R
ead
in
g
Bi
t 2 =
B
oar
d E
lec
tro
ni
cs
Ty
pe
Bi
t 3 =
H
ar
dw
ar
e I
nt
er
fac
e
Ty
pe
Bi
t 4
=
C
om
m
uni
ca
tions
T
ype
Bi
t 5
=
H
ous
ing
De
pt
h R
at
ing
(m
et
er
s)
Bi
t 6 =
S
tem
L
en
gt
h
1 =
C
TD
-ER
2 =
C
TD
-ES
Fi
el
d 5
=
D
ep
th R
at
ing of
Conduc
tiv
ity
(m
et
er
s)
Fi
el
d 6 =
P
ress S
en
so
r
Opt
ion
(m
et
er
s)
Fi
el
d 7
=
O
EM
Te
m
pe
ra
tur
e
Pr
obe
M
ount
ing P
os
iti
on
CT
ES
0 = None
0 = DR
0 = N/A
0 = N/A
0 = N/A
0 = None
0 = No
Stem
0 = No
Cond
0 = None
0 = N/A
CTD
ER
I = N/A
1 = N/A
1 = GPO
1 = RS232
1 = 500
1 = 1.037 in
500
20
I = N/A
2 = N/A
2 = RS485
2 = 2000
2 = 1.75 in
7000
100
E = external
3 = 7000
200
350
500
667
1000
2000
3000
7000
Example: CTD-ES-0-010112-500-500-E corresponds to a CTD- Ext Cond, Straight Mount, GPO
electronics, 500M Housing, RS232, Shallow Cond, PS 500M, Ext Temp.
