Common Specification Of The Terminal In The Input Section; Specification Of Input Section (Gl840-M With Standard Terminal) - GRAPHTEC GL840 Quick Start Manual

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Common specification of the terminal in the input section

* The following specifications are common to GL840-M and GL840-WV.
Item
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
Measurement Voltage 20/50/100/200/500 mV, 1/2/5/10/20/50/100 V, 1-5 V F.S.
accuracy
Thermocouple : K, J, E, T, R, S, B, N, W (WRe5-26)
Temperature
Resistance temperature detector : Pt100, JPt100, Pt1000 (IEC751)
Measurement accuracy : 100°C, 500°C, 2000°C
0 to 100% (voltage 0 V to 1 V scaling conversion)
Humidity
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
Common mode rejection ratio At least 90 dB (50/60 Hz; signal source 300 or less)
Noise At least 48 dB (with +/- terminals shorted)
Specification of input section
Item
•
•
Measurement accuracy * 1 Voltage : ±0.1% of F.S.
Thermocouple
(23°C ±5°C)
• When 30 minutes or Type
more have elapsed after
power was switched on
• Sampling 1 s/20 ch
R/S
• Filter ON (10)
• GND connected
Reference contact compensation
accuracy
•
Resistance temperature detector
Maximum input voltage Between +/– terminals : 20mV to 2Vrange (60Vp-p)
Between input terminal/input terminal : 60Vp-p
Between input terminal/GND : 60Vp-p
Withstand voltage Between input terminal/input terminal : 1 minute at 350Vp-p
Between input terminal/GND : 1 minute at 350Vp-p
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Description
* Occurs when sampling speed is 10 ms/20 ms or 50 ms.
(GL840-M with standard terminal)
Description
*1: Thermocouple diameters T, K: 0.32 , others: 0.65
Measurement
Temperature Range
0 TS 100˚C
100<TS 300˚C
R: 300<TS 1600˚C
S: 300<TS 1760˚C
400 TS 600˚C
B
600<TS 1820˚C
-200 TS -100˚C
K
-100<TS 1370˚C
-200 TS -100˚C
E
-100<TS 800˚C
-200 TS -100˚C
T
-100<TS 400˚C
-200 TS -100˚C
J -100<TS 100˚C
100<TS 1100˚C
-200 TS<0˚C
N
0 TS 1300˚C
W 0 TS 2000˚C
* 3-wire system
Type Measurement Applied current
Temperature Range
Pt100 -200 to 850°C
JPt100 -200 to 500°C
Pt1000 -200 to 500°C
5V to 100V range (110Vp-p)
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Measurement Accuracy
±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 +2.0˚C)
± (0.1% of rdg +1.0˚C)
± (0.1% of rdg +1.5˚C)
±0.5˚C
Accuracy
1mA ±1.0°C
1mA ±0.8°C
0.3mA ±0.8°C
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