GRAPHTEC GL980 - Specification of Input Section

Specification of input section
21
S/N (Noise) 20 mV range: -40 dB or more (at +/- short)
Filter OFF, Line, 5 Hz, 50 Hz, 500 Hz, 5 kHz, 50 kHz
Attenuation -3 dB/Cutoff frequency Slope 6 dB/oct
Common mode rejection ratio
Between Input Ch and GND terminal: 50MΩ or more (At 500 VDC)
Insulation resistance
90 dB or more (50/60 Hz; signal source 300Ω or less)
Frequency response DC to 200 kHz (+1/-4 dB)
DescriptionItem
Measurement
ranges
20, 50, 100, 200, 500 mV;
1, 2, 5, 10, 20, 50, 100, 200, 500 V; 1-5 V F.S.
Thermocouples : K, J, E, T, R, S, B, N, W (WRe5-26)
0 to 100% (Voltage 0 to 1V scaling conversion) * B-530 (option) used
±0.25% of F.S.
Voltage
RMS
Voltage
Temperature
Humidity
Temperature
1MΩ ±5%
Within 1 kΩ
Gain : 0.01% of F.S./°C
Zero : 0.02% of F.S./°C
Allowable signal source rWithin 1 kΩ
Input resistance
16-bit (Effective resolution: Approx. 1/40000 of the +/- range)A/D converter
Temperature coefficient
Detectable in dedicated mode (Not detectable during capturing)Burnout detection
Internal/External switching Reference contact compensation accuracy
Number of input channels 8CH fixed
Fastest Sampling interval 1 μs
Input method All CH insulation, unbalanced input, all CH simultaneous sampling
M3.5 screw type terminals (Rectangular flat washer)
Measurement accuracy
(23°C ±5°C)
•
When 30 minutes or more have
• GND connected
• Vertical placement
• Filter Line
（Voltage, Temperature）
Between each input (-) terminal and GND terminal: 60Vp-p
Between each input (-) terminal and each input (-) terminal:1000Vp-p 1 minute
Between each input (-) terminal and GND terminal: 1000Vp-p 1 minute
Between each input (-) terminal and each input (-) terminal: 60Vp-p
Between each input (-) terminal and each input (-) terminal: 20 mV to 2 V ±30 V
5V to 500V ±500V
Maximum permissible input
voltage
Withstand voltage
Thermocouple Measurement Accuracy Measurement Temperature Range (°C)
R/S
B
K
E
T
N
W
Reference contact compensation accuracy
J
0 ≤ TS ≤ 100℃ ±7.0℃
±5.0℃
± (0.05% of rdg +3.0℃)
± (0.05% of rdg +3.0℃)
± (0.05% of rdg +3.0℃)
± (0.05% of rdg +3.0℃)
± (0.05% of rdg +2.0℃
± (0.05% of rdg +3.0℃)
± (0.05% of rdg +2.0℃)
± (0.1% o f rdg +2.5℃)
± (0.1% o f rdg +1.5℃)
± (0.05% of rdg +2.0℃)
± (0.1% o f rdg +3.0℃)
± (0.1% o f rdg +2.0℃)
± (0.1% o f rdg +2.5℃)
±5.5℃
±3.7℃
±2.7℃
±1.0℃
100 < TS ≤ 300℃
R : 300 < TS ≤ 1600℃
S : 300 < TS ≤ 1760℃
400 ≤ TS ≤ 600℃
600 < TS ≤ 1820℃
-200 ≤ TS ≤ -100℃
-100 < TS ≤ 1370℃
-200 ≤ TS ≤ -100℃
-100 < TS ≤ 800℃
-200 ≤ TS ≤ -100℃
-100 < TS ≤ 400℃
-200 ≤ TS ≤ -100℃
-100 < TS ≤ 100℃
100 < TS ≤ 1100℃
-200 ≤ TS < 0℃
0 ≤ TS ≤ 1300℃
0 ≤ TS ≤ 2315℃
•
Thermocouple
•
Voltage
±1.5% of F.S. (Sine wave, 20 to 10 kHz)
•
RMS(Average)
Other range: -50 dB or more (at +/- short)
Insulated BNC connector or M3.5 screw terminal unit
(However, it cannot input to the BNC connector of same CH and the screw terminal at the same time.)
Input terminal
type
10, 25, 50, 100, 250, 500 mVrms
1, 2.5, 5, 10, 25, 50, 100, 250 Vrms F.S.
* Crest Factor 2 or less
* Measurable frequency: 20 to 10 kHz
* The true effective value (RMS) of AC + DC is measured
* The function to automatically obtain the effective value (RMS) and the operation
cross value from the currently measured value is provided
* Thermocouple diameters T - K: 0.32 φ, others: 0.65 φ