GRAPHTEC GL820 - Page 20

Input Unit Specifications
Number of input channels
M3
screw
type,
20
channels
(maximum
200
channels
with
extension
unit)
Method
Photo
MOS
relay
scanning
system,
all
channels
isolated,
balanced
input
|
Maximum sampling speed
10ms/1ch
\Voltage|
[20m/50m/100m/200m/500m/1/2/5/10/20/50/1-5V
FS.
Measurement | tenpeatue
Thermocouple
K.J,
E.
T,
R,
S, B,
N,
W(WRe5-26)
accuracy
Resistance
temperature
detector:
Pt100,
JPt100,
Pt1000
(IEC751)
~ When 30 minutes
t
Humidity|
0
to
100%
(voltage
0
V
to
1
V
scaling
conversion)
“with
8-530
(option)
Measurement
Voltage
+£0.1%
of
F.S.
accuracy
*1
Thermocouple
(23°C45°C)
0<TS<100 25.2°C
or more have ela,
poe
aka
ie
-
R/S
100<TS<300
+3.0°C
switched
on
R:
300<TS<1600
_
|
(0.05%
of
rdg
+2.0°C)
~
Sampling
1s/10ch
S:
300<TSS1760__|
+(0.05%
of
rdg
+2.0°C)
-raer
OM,
400sTS<600
335°C
- GND connected B
$
600<TS<1820
|
(0.05%
of
rdg
+2.0°C)
-200sTSs-100
|
+
(0.05%
of
rdg
+2.0°C)
K
-100<TS<1370_
|
(0.05%
of
rdg
+1.0°C)
E
-200<TS<-100__|
+(0.05%
of
rdg
+2.0°C)
-100<TS<800
+
(0.05%
of
rdg
+1.0°C)
-200sTSs-100
|
+
(0.1%
of
rdg
+1.5°C)
T.
=100<TS<400
|
+(0.1%
of
rág
+0.5°C)
-200<TS<-100 | +2.7°C
J
~100<TS<i00
|
41.7°C
|
100<TS<1100
|
+
(0.05%
of
rdg
+1.0°C)
N
O<TS=1300
£(0.1%
of
rdg
+1.0°C)
w
O<TS<2000
+(0.1%
of
rdg
+1.5°C)
Reference
contact
compensation
accuracy
£0.5°C
*1: Thermocouple diameters T: 0.32 ®, others: 0.65 ©
Resistance temperature detector
Type
|
NessuenenTenperatue
Range]
Applied
current
|
Accuracy
Pt100
-200
to
850°C
1imA
+1.0°C
JPt100
-200
to
500°C
imA
£0.8°C
Pt1000
-200
to
500°C
0.2mA
£0.8°C
A/D
converter
16-bit
Delta-Sigma
A/D
converter
(Effective
resolution:
approx.
1/40,000
of
&
range)
Temperature
coefficient
|
Gain
:
0.01%
of
F.S./°C
Zero
:
0.02%
of
F.S./°C
‘Occurs
when
sampling
speed
is
10,
20,
or
50
ms.
Maximum
input
voltage
|
Between
+/—
terminals
:
60Vp-p
Between
input
terminal/input
terminal
:_60Vp-p
Between input terminal/GND z
Withstand
voltage
|
Between
input
terminal/input
terminal
:
1
minute
at
350Vp-p
Between
input
terminal/GND
:
1
minute
at
350Vp-p
Common
mode
rejection
ratio
|
At
least
90
dB
(50/60
Hz;
signal source
3009
or
less)
Noise
At least 48 dB (with +/- terminals shorted)
19