18
EVD-2 • 5401042 • REV L • 03/05
DETERMINING THE NUMBER OF DETECTORS FOR A SAFE APPLICATION
Refer to column one in Table 4 for the type of the safe in the application. In column two
find the maximum linear distance from a detector to any point on the protected surface.
This distance is the detector range. Next, refer to column one, (for steel safes), or
column two, (for composite safes), in Table 5. Find the range of distances based upon
the detector range that corresponds to the safe in the application. Using the row of this
range of distances, determine the number of detectors from column three, (if safe has
a single door), or from column four, (if safe has double doors). In some single detector
applications, the EVD-2 system may be used to protect multiple safes via a combination
of an EVD-M and multiple EVD-R remote pickups. For applications with a larger distance
than that shown in Table 5, consult Potter’s technical support for assistance.
Table 5.
m
u
m
i
x
a
M
e
c
n
a
t
s
i
D
r
a
e
n
i
L
t
n
i
o
P
y
n
A
o
t
r
o
t
c
e
t
e
D
m
o
r
f
f
o
s
e
c
a
f
r
u
S
d
e
t
c
e
t
o
r
P
n
o
s
e
f
a
S
l
e
e
t
S
*
m
u
m
i
x
a
M
e
c
n
a
t
s
i
D
r
a
e
n
i
L
t
n
i
o
P
y
n
A
o
t
r
o
t
c
e
t
e
D
m
o
r
f
f
o
s
e
c
a
f
r
u
S
e
t
c
e
t
o
r
P
n
o
s
e
f
a
S
e
t
i
s
o
p
m
o
C
*
*
s
r
o
t
c
e
t
e
D
f
o
r
e
b
m
u
N
e
t
e
l
p
m
o
C
r
o
f
d
e
r
i
u
q
e
R
f
o
e
g
a
r
e
v
o
C
s
e
f
a
S
r
o
o
D
e
l
g
n
i
S
s
r
o
t
c
e
t
e
D
f
o
r
e
b
m
u
N
e
t
e
l
p
m
o
C
r
o
f
d
e
r
i
u
q
e
R
f
o
e
g
a
r
e
v
o
C
s
e
f
a
S
r
o
o
D
e
l
b
u
o
D
"
6
9
=
<
D
"
0
1
1
=
<
D
1
2
"
2
9
1
=
<
D
<
"
6
9
"
0
2
2
=
<
D
<
"
0
1
1
2
2
"
8
8
2
=
<
D
<
"
2
9
1
"
0
3
3
=
<
D
<
"
0
2
2
3
3
"
4
8
3
=
<
D
<
"
8
8
2
"
0
4
4
=
<
D
<
"
0
3
3
4
4
"
0
8
4
=
<
D
<
"
4
8
3
"
0
5
5
=
<
D
<
"
0
4
4
5
5
NOTE: D=Maximum Linear Distance
*Steel Safe Construction:
Body: Minimum 1/4" Steel
Door: Minimum 1/2" Steel
**Composite Safe Construction:
Body: Minimum 16 Gauge Steel over 3" Composite Material
Door: Minimum 1/4" Steel over 3" Composite Material
