|
RTD
TRANSMITTER,
2
3
and
4
WIRE
SEM1500P
Series
|
 |
- RTD
Input
BS
EN
60751
- 2,
3,
or
4
Wire
Input
- High
Performance
- Fully
Linearized
- Small
Size
- 4
to
20
ma
Output
|
|
INTRODUCTION
The
SEM1500P
is
a
series
of
DIN
rail
mounted
transmitters
designed
to
accept
RTD
temperature
sensors
and
to
convert
them
to
the
industry
standard
4
to
20
ma
transmission
signal.
Units
are
supplied
factory
set
to
any
one
of
six
standard
ranges
or
can
be
easily
user
calibrated
to
provide
virtually
any
range
from
-292
to
1112
ºF,
minimum
range
is
50
ºF.
Non
standard
ranges
can
be
supplied,
factory
set,
at
a
nominal
extra
cost.
High
accuracy
is
achieved
by
using
active
two,
three
or
four
wire
bridge
arrangements
which
effectively
remove
any
errors
associated
with
the
sensor
connecting
cables.
The
small
size
of
the
unit
enables
many
more
units
to
be
installed
in
a
smaller
space
than
was
previously
possible.
|
INPUT
SPECIFICATION
@ 68 °F
| .RTD
(Pt100) |
| .Sensor |
.Pt100
Platinum
Resistor |
| .BS
EN
60751
(IEC751) |
| .BS
1904
(DIN43760) |
| .other
available
on
request |
| SEM1503P. |
.2
or
3
wire |
| SEM1504P. |
.2
or
4
wire |
| .Accuracy |
.±0.27
ºF
±%
reading
as
follows |
| Accuracy
%
of
reading. |
0.4 |
0.2 |
0.1 |
0.2 |
0.4 |
| Temperature
ºF. |
-292 |
-148 |
32 |
392 |
932 |
1112 |
| .Burn
Out |
.UP
scale
standard |
| .Excitation
Current |
.SEM1503P
2
ma
nominal |
| .SEM1504P
1
ma
nominal |
OUTPUT
| .Type |
.Passive
2
wire
current
output |
| .Range |
.4
to
20
ma
(30
ma
max.) |
| .Protection |
.Reverse
connection
plus
over
voltage |
GENERAL
SPECIFICATIONS
| .Supply |
.10
to
30
VDC |
| .Load |
.700
ohms
@
24
V |
| .Thermal
Stability |
.50ppm/ºF |
| .Ripple
Refection |
.<40
µA/V
(measured
at
1V
ripple
60
Hz) |
| .Response
time |
.100
ms
to
reach
70%
of
final
value |
| .Temperature |
.Ambient
32
to
158
ºF |
| .Relative
Humidity |
.Ambient
10-95%
non-condensing |
APPROVALS
| .EMC |
.Emissions |
.BS
EN
50081 |
| .Susceptibility |
.BS
EN
50082 |
ENCLOSURE
| .Case
Material |
.Polyamide
(Grey) |
| .Case
Flammability |
.To
UL94-VO
VDE
0304
Part
3
Level
IIIA |
| .Mounting |
.Top
Hat
rail
to
DIN
EN
50022-35 |
| .Protection |
.IP20 |
| .Connections |
.Captive
screw
connections |
| .Cable
Size |
.12
AWG
solid
/
14
AWG
stranded |
STANDARD
RANGES
The
SEM1500P
Series may
be purchased
pre-ranged
to any of
the following
standard
ranges:
| RANGE
ºF |
|
RANGE
ºC |
| from |
to |
|
from |
to |
| -22 |
+95 |
|
-30 |
+35 |
| -12 |
+167 |
|
-25 |
+75 |
| 32 |
122 |
|
0 |
50 |
| 32 |
212 |
|
0 |
100 |
| 32 |
392 |
|
0 |
200 |
| 32 |
752 |
|
0 |
400 |
NON
STANDARD
RANGES
Units
can be supplied
set up to
other non-standard
ranges for
a small
extra charge
or alternatively
the unit
can easily
be re-ranges
as follows:
ADJUSTMENTS
(Range selection)
Range selection
GAIN and
OFFSET Coarse
settings
are made
by two 16
position
rotary screw
adjustment
switches
on the side
of the unit.
Fine adjustment
is by front
access potentiometers.
Full re-calibration
details
are supplied
with each
transmitter.
| INPUT
type |
OFFSET
RANGE
ºF |
GAIN
RANGE
ºF |
OFFSET
RANGE
ºF |
GAIN
RANGE
ºF |
| 100
ohm
platinum |
4
ma |
4
to
20
ma |
4
ma |
4
to
20
ma |
| Pt-100 |
-148
to
+428
ºF |
75
to
1112
ºF
full
accuracy |
-100
to
+220
ºC |
25
to
600
ºC
full
accuracy |
SEM1500P
Instruction
Manual
ORDER
CODE
| SEM1503P
/ |
value
@
4
ma
/ |
value
@
20
ma
/ |
ºF
or
ºC |
| SEM1504P
/ |
Call
(713)
861-1100
for literature
and pricing.
If you
prefer
to ask
for information
via the
internet,
email
info@sandelius.com.
© 2001 Sandelius
Instruments, Inc. - All Rights Reserved
|
