Input Unit Specifications - GRAPHTEC midi LOGGER GL220 User Manual

CHAPTER 4 Specifications

Input Unit Specifications

Number of input channels
Input terminal type
Input method
Scan speed
Measurement ranges
Measurement accuracy
(23°C ±5°C)
when 30 minutes or more have
elapsed after the power is
turned on
• Filter ON (10)
• Sampling 1s (10CH)
• GND connected
Reference contact
compensation accuracy
A/D converter
Temperature coefficient
Input resistance
Allowable signal source
resistance
Maximum permissible input
voltage
Withstand voltage
Insulation resistance
Common mode rejection ratio
Noise
Filter
4-4
Item
10 channels
M3 screw type terminal
Photo MOS relay scanning system
All channels isolated, balanced input
10 ms/1 ch maximum
Voltage: 20, 50, 100, 200, 500 mV; 1, 2, 5, 10, 20, 50 V; 1-5 V F.S.
Temperature
• Thermocouples: K, J, E, T, R, S, B, N, W (WRe5-26)
Humidity: 0 to 100% (voltage 0 V to 1 V scaling conversion) *with B-530 (op-
tion)
Voltage: 0.1% of F.S.
Temperature
Thermocouple Measurement Temperature
Reference contact compensation accuracy
* Thermocouple diameters T: 0.32 φ, others: 0.65 φ
Internal/External switching
Method
Resolution :16-bit (Effective resolution: About 1/40,000 of the +/- 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.
1 M Ω ±5%
Within 300 Ω
Between +/– input terminals
Between input terminal/input terminal
Between input terminal/GND
Between input terminal/input terminal
Between input terminal/GND
Between input terminal/GND: At least 50 MΩ (at 500 VDC)
At least 90 dB (50/60 Hz; signal source 300 Ω or less)
At least 48 dB (with +/– terminals shorted)
Off, 2, 5, 10, 20, 40
Filter operation is on a moving average basis.
The average value of the set sampling count is used.
If the sample interval exceeds 5 seconds, the average value of data obtained in
a sub-sample (5 seconds) is used.
Description
Range (°C)
0 ≤ TS ≤100
R/S
100 < TS ≤300
R : 300 < TS ≤1600°C
S : 300 < TS ≤1760°C
400 ≤ TS ≤600
B
600 < TS ≤1820°C
– 200 ≤ TS ≤ –100
K
– 100 < TS ≤1370°C
– 200 ≤ TS ≤ –100
E
– 100 < TS ≤800°C
T – 200 ≤ TS ≤ –100
– 100 < TS ≤400°C
– 200 ≤ TS ≤ –100
J
– 100 < TS ≤100
100 < TS ≤1100°C
0 ≤ TS ≤1300°C
N
0 ≤ TS ≤2000°C
W
:∆∑ method
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 +1.0°C)
±(0.1% of rdg +1.5°C)
±0.5°C
:60 Vp-p
:60 Vp-p
:60 Vp-p
:1 minute at 350 Vp-p
:1 minute at 350 Vp-p