GRAPHTEC GL820, Quick Start Manual, Page: 20 / 22

± 5.2˚C
±3.0 ˚C
±
（
0.05% of rdg +2.0 ˚C
）
±
（
0.05% of rdg +2.0 ˚C
）
±3.5 ˚C
±
（
0.05% of rdg +2.0 ˚C
）
±
（
0.05% of rdg +2.0 ˚C
）
±
（
0.05% of rdg +1.0 ˚C
）
±
（
0.05% of rdg +2.0 ˚C
）
±
（
0.05% of rdg +1.0 ˚C
）
±
（
0.1% of rdg +1.5 ˚C
）
±
（
0.1% of rdg +0.5 ˚C
）
±2.7 ˚C
±1.7 ˚C
±
（
0.05% of rdg +1.0 ˚C
）
±
（
0.1% of rdg +1.0 ˚C
）
±
（
0.1% of rdg +1.5 ˚C
）
±0. 5˚C
-100
＜ＴＳ
≤ 800
600
＜ＴＳ
≤ 1820
-100
＜ＴＳ
≤ 100
100
＜ＴＳ
≤ 1100
-100
＜ＴＳ
≤ 1370
Ｂ
Ｋ
100
＜ＴＳ
≤ 300
R: 300
＜ＴＳ
≤ 1600
S: 300
＜ＴＳ
≤ 1760
400 ≤
ＴＳ
≤ 600
0 ≤
ＴＳ
≤ 1300
0 ≤
ＴＳ
≤ 2000
Ｅ
Ｔ
Ｊ
Ｎ
Type
Ｒ
/
Ｓ
0 ≤
ＴＳ
≤ 100
Measurement Temperature Rang Measurement Accuracy
Reference contact compensation accuracy
*1: Thermocouple diameters T: 0.32 Φ, others: 0.65 Φ
Ｗ
-200 ≤
ＴＳ
≤ -100
-200 ≤
ＴＳ
≤ -100
-200 ≤
ＴＳ
≤ -100
-100
＜ＴＳ
≤ 400
-200 ≤
ＴＳ
≤-1 00
Measurement
accuracy
A/D converter
Temperature coefficient
Maximum input voltage
Withstand voltage
Common mode rejection ratio
Noise
Number of input channels
Method
Maximum sampling speed
Applied current
1mA
1mA
0.2mA
Accuracy
±1.0°C
±0.8°C
±0.8°C
Measurement Temperature Range
-200 to 850°C
-200 to 500°C
-200 to 500°C
Type
JPt100
Pt100
Pt1000
Temperature
Humidity
Voltage
Photo MOS relay scanning system, all channels isolated, balanced input
10ms/1ch
M3 screw type, 20 channels (maximum 200 channels with extension unit)
Thermocouple
Resistance temperature detector
20m/50m/100m/200m/500m/1/2/5/10/20/50/1-5V F.S.
Thermocouple
:
K
、
J
、
E
、
T
、
R
、
S
、
B
、
N
、
W
（
WRe5-26
）
Resistance temperature detector
:
Pt100, JPt100, Pt1000 (IEC751)
0 to 100% (voltage 0 V to 1 V scaling conversion)
*with B-530 (option)
Voltage
16-bit Delta-Sigma A/D converter
(Effective resolution: approx. 1/40,000 of ± range)
Gain : 0.01% of F.S./°C
Zero : 0.02% of F.S./°C
Occurs when sampling speed is 10, 20, or 50 ms.
B/– terminals
Between input terminal/input terminal
Between input terminal/GND
Between input terminal/input terminal
Between input terminal/GND : 60Vp-p
: 60Vp-p
: 60Vp-p
: 1 minute at 350Vp-p
: 1 minute at 350Vp-p
At least 90 dB (50/60 Hz; signal source 300Ω or less)
At least 48 dB (with +/- terminals shorted)
±0.1% of F.S.
Description Item
Input Unit Specifications
(23°C±5°C)
- When 30 minutes
or more have elapsed
after power was
switched on
- Sampling 1s/10ch
Measurement
accuracy *1
- GND connected
- Filter ON (10)
19