Input Section - GRAPHTEC GL980 User Manual

Input section

Item
Number of input channels
Input terminal type Voltage
Temperature M3.5 screw type terminals (Rectangular flat washer)
Input method
Fastest Sampling interval
Measurement Voltage
ranges
Temperature Thermocouples : K, J, E, T, R, S, B, N, W (WRe5-26)
Humidity
Root mean
square value
Measurement accuracy
(23°C ±5°C)
• When 30 minutes or more have
• GND connected
• Vertical placement
• Filter : Line
(Voltage, Temperature)
Reference contact compensation
accuracy
Burnout detection
A/D converter
Temperature coefficient
Input resistance
Allowable signal source
resistance
Maximum permissible input
voltage
Withstand voltage
Insulation resistance
Common mode rejection ratio
8CH fixed
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.)
All CH insulation, unbalanced input, all CH simultaneous sampling
1 μs
20, 50, 100, 200, 500 mV;
1, 2, 5, 10, 20, 50, 100, 200, 500 V; 1-5 V F.S.
0 to 100% (Voltage 0 to 1V scaling conversion)
* B-530 (option) used
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
•
Voltage
±0.25% of F.S.
•
Thermocouple
Measurement Temperature
Thermocouple
R/S
100 < TS ≤ 300℃
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℃
100 < TS ≤ 1100℃
N -200 ≤ TS <
W
Reference contact compensation accuracy
* Thermocouple diameters T - K: 0.32 φ, others: 0.65 φ
•
Root mean square value
±1.5% of F.S. (Average value) (Sine wave, 20 to 10 kHz)
Internal/External switching
Detectable in dedicated mode (Not detectable during capturing)
16-bit (Effective resolution: Approx. 1/40000 of the +/- range)
Gain : 0.01% of F.S./°C
Zero : 0.02% of F.S./°C
1MΩ ±5%
Within 1 kΩ
Between each input (+) terminal and each input (-) terminal: 20 mV to 2 V
Between each input (-) terminal and each input (-) terminal: 60Vp-p
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
Between Input Ch and GND terminal: 50MΩ or more (At 500 VDC)
90 dB or more (50/60 Hz; signal source 300Ω or less)
Description
Range (°C)
0 ≤ TS ≤ 100℃ ±7.0℃
±5.0℃
± (0.05% of rdg +3.0℃)
± (0.05% of rdg +3.0℃)
±5.5℃
± (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℃)
±3.7℃
±2.7℃
± (0.05% of rdg +2.0℃)
0℃ ± (0.1% o f rdg +3.0℃)
0 ≤ TS ≤ 1300℃ ± (0.1% o f rdg +2.0℃)
0 ≤ TS ≤ 2315℃ ± (0.1% o f rdg +2.5℃)
±1.0℃
CHAPTER 4 Specification
Measurement Accuracy
±30 V
5 V to 500 V ±500 V
: 1000Vp-p 1 minute
4-5