Input Unit Specifications - GRAPHTEC midi LOGGER GL240 User Manual

CHAPTER 4 Specification

Input Unit Specifications

Item
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 power was switched on
• Sampling 1 s/10 ch
• Filter ON (10)
• 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
10 channels
M3 screw type terminals (Rectangular flat washer)
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, 100 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 to 1 V scaling conversion) * Use the B-530 (optional)
Voltage: 0.1% of F.S.
Temperature
• Thermocouple
Measurement Temperature
Thermocouple
R/S
R : 300 < TS ≤ 1600℃
S : 300 < TS ≤ 1760℃
B 400 ≤ TS ≤ 600℃
600 < TS ≤ 1820℃
K -200 ≤ TS ≤ -100℃
-100 < TS ≤ 1370℃
E -200 ≤ TS ≤ -100℃
-100 < TS ≤ 800℃
T -200 ≤ TS ≤ -100℃
-100 < TS ≤ 400℃
J -200 ≤ TS ≤ -100℃
-100 < TS ≤ 100℃
N -200 ≤ TS <
W
Reference contact compensation accuracy
* Thermocouple diameters T, K: 0.32 φ, others: 0.65 φ
Internal/External switching
Method : ΔΣ method
Resolution :16-bit (Effective resolution: About 1/40000 of the +/- range)
Gain : 0.01% of F.S./°C
Zero : 0.02% of F.S./°C
* Zero occurs at the sampling of 10, 20, and 50 ms.
1MΩ ±5%
Within 300Ω
Between +/– terminals
Between input terminal/input terminal : 60 Vp-p
Between input terminal/GND
Between input terminal/input terminal : 350 Vp-p 1 minute
Between input terminal/GND
Between input terminal/GND
90 dB or more (50/60 Hz; signal source 300Ω or less)
48 dB or more (with +/– terminals shorted)
Off, 2, 5, 10, 20, 40
Filter operation is on a moving average basis.
The average value of the number of set samples is used.
If the sample interval exceeds 5 seconds, the average value of data obtained in a
sub-sample (5 seconds) is used.
Description
Measurement Accuracy
Range (°C)
0 ≤ TS ≤ 100℃ ±5.2℃
100 < TS ≤ 300℃ ±3.0℃
± (0.05% of rdg +2.0℃)
± (0.05% of rdg +2.0℃)
±3.5℃
± (0.05% of rdg +2.0℃)
± (0.05% of rdg +2.0℃)
± (0.05% of rdg +1.0℃)
± (0.05% of rdg +2.0℃)
± (0.05% of rdg +1.0℃)
± (0.1% o f rdg +1.5℃)
± (0.1% o f rdg +0.5℃)
±2.7℃
±1.7℃
100 < TS ≤ 1100℃ ± (0.05% of rdg +1.0℃)
0℃ ± (0.1% o f rdg +2.0℃)
0 ≤ TS ≤ 1300℃ ± (0.1% o f rdg +1.0℃)
0 ≤ TS ≤ 2000℃ ± (0.1% o f rdg +1.5℃)
±0.5℃
: 20mV to 1V range (60Vp-p)
2V to 100V range (110Vp-p)
: 60 Vp-p
: 350 Vp-p 1 minute
: 50MΩ or more (at 500 VDC)