最大PID比率 |
50
or
60
Hz,
depending
on
AC
line
frequency |
数据记录率 |
10
samples/second/channel
– 1
sample/hour/channel
(can
be
setindependently
for
each
channel
or
globally
for
all
channels) |
显示分辨率 |
0.001
°C,
°F,
K,
V,
A,
W,
etc.
if
–1000
<
displayed
value
<
1000;6
significant
figures
otherwise |
PID
控制回路 |
Single
step
response
or
relay
tuning
with
conservative,
moderate,
andaggressive
response
targets |
显示 |
320
×
240
pixel
touchscreen;
numeric
and
graphical
data
displays. |
报警 |
Upper
and
lower
temperaturelimits
or
rate-of-change
limits
can
be
set
on
each |
|
channel.
If
exceeded,
an
audio
alarm
and
a
relay
closure
occur. |
接口 |
USB,
Ethernet,
and
RS-232;
optional
GPIB
(IEEE488.2) |
|
PTC320
thermistor,
diode,
and RTD
reader
|
输入 |
One
input
for
2-wire
or
4-wire
thermistor,
diode,
or
RTD |
连接器 |
6-pin
240°
push-pull
DIN
socket |
范围 |
30,
100,
300,
1k,
3k,
10k,
30k,
100kΩ,
±2.5V,
or
auto |
激发源
(RTDs) |
0,
10,
20,
50,
100,
200,
500
nA;
1,
2,
5,
10,
20,
50,
100,
200,
500
μA;
1,
2,5
mA;
or
auto |
激发源
(diodes) |
0 or
10
μA |
准确度 |
TBD |
噪声 |
TBD |
温度系数 |
TBD |
|
PTC321
Pt RTD
reader
|
输入 |
Four
100Ω
Pt
RTD
4-wire
inputs |
连接头 |
5-pin,
3.5mm
header |
范围 |
0 –
400
Ω |
ITS-90
Pt100
RTDs |
–215
°C
to
850
°C |
激发源 |
1 mA |
初始精度 |
±30
mK |
温度漂移 |
1.4
mK/°C |
时间漂移 |
±15
mK/year
(at
25°C
ambient
temperature) |
噪声 |
2
mKrms
(at
25°C
sensor
temperature
and
10
samples/s) |
信号检测 |
Card
detects
open
and
short
circuit
conditions |
|
PTC330
thermocouple
reader
|
输出 |
Four
optoisolated
thermocouple
inputs |
连接口 |
Mini
thermocouple
jacks |
热电偶类型 |
E,
J,
K,
N,
or T |
范围 |
±500
mV |
Type
E |
–245
°C
to
1025
°C
(cal
table
range
with
cold
junction
at
25°C) |
Type
J |
–185
°C
to
1225
°C |
Type
K |
–245
°C
to
1395
°C |
Type
N |
–245
°C
to
1325
°C |
Type
T |
–245
°C
to
425
°C |
输入电容 |
<1
pF |
精度 |
±500
mK
(over
12
months) |
噪声 |
20
mKrms
(at
10
samples/s) |
温度漂移 |
20
mK/°C
(type
K
thermocouple
at
164.0
K) |
共模抑制比CMRR |
100
dB |
|
PTC420
AC
output
card
|
输出 |
One
line
voltage
output
switched
by
solid-state
relay |
连接口 |
NEMA
5-15
(3-prong
North
American
wall
socket);
a
heater
cable
with
a
mating
plug
on
one
side
and
stripped
ends
on
the
other
is
included |
输出电压 |
120/240
VAC |
最大输出电流 |
5 A |
On/off
cycle
time |
Adjustable
between
1
and
240
s |
最大线性电压 |
250
VAC |
冲击电流 |
100
A
max.
(non-repetitive) |
输出分辨率 |
0.1%
at
10 s
cycle
time |
最小加热器电阻 |
24 Ω
(110
VAC),
46 Ω
(230
VAC) |
|
PTC430
DC
output
card
|
输出 |
One
linear,
unipolar
DC
current
source |
连接 |
Two
banana
jacks,
1
inch
center-to-center
spacing |
范围 |
50 V
1A,
20 V
2 A,
50 V
0.5A,
20 V
0.5
A,50
V
0.1A,
or
20 V
0.1
A |
输出分辨率 |
16-bit
(24-bit
with
dithering) |
精度 |
±1
mA
(1 A
range)
±0.1
mA
(0.5
A
range)
±0.01
mA
(0.1
A
range) |
噪声
25
Ω负载 |
200
μV
(1 A
range)
15
μV
(0.5
A
range)
5 μV
(0.1
A
range) |
|