Input Unit Specifications - GRAPHTEC GL900 User Manual

Specifications

Input Unit Specifications

Number of input channels
Input terminal
type
Input method
Maximum sampling speed
Measurement
ranges
Measurement accuracy*
(23°C±5°C)
• When 30 minutes or more
have elapsed after power
was switched on
• Filter Line
• GND connected
• Standing upright
• When the measured value
is Average
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 At least 90 dB (50/60 Hz; signal source 300 Ω or less)
S/N (Noise)
Frequency response
Filter
4-4
Item
Fixed to 8 channels
Voltage BNC connector
Temperature M3 screw type terminal board
All channels isolated
Imbalanced input
Simultaneous sampling of all channels
10 μs
Voltage 20 m, 50 m, 100 m, 200 m, 500 m;
1, 2, 5, 10, 20, 50, 100, 200, 500 V; F.S., 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)
1 • Voltage
±0.25% of F.S.
• Thermocouple
Type
R/S
B
K
E
T
J
N
W
Reference contact compensation accuracy ±1.0°C
*1: Thermocouple diameters T: 0.32 φ , others: 0.65 φ "
Internal/External switching
16 bits (out of which 14 bits are internally acknowledged)
Gain : 0.01% of F.S./°C
Zero : 0.02% of F.S./°C
1 MΩ±5%
Within 1 kW
Between input channel + and - terminals : 20 mv to 1 V → 30 Vp-p
Between input channel terminals
Between input channel terminal and GND terminal : 60 Vp-p
Between input channel terminal and GND terminal : 1 minute at 1000 Vp-p
Between input channel terminals
Between input channel terminal and GND terminal : At least 50 MΩ (at 500 VDC)
20 mV range : At least -40 dB
Other range : At least -50 dB
DC to 20 KHz (+1/-4 dB)
OFF, Line, 5Hz, 50Hz, 500Hz
(Attenuation) -3 dB / 6 dB oct
Description
Measurement temperature range
0 ≤ TS ≤ 100
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
0 ≤ TS ≤ 1300
0 ≤ TS ≤ 2315
: 2 V to 500 V → 500 Vp-p
: 60 Vp-p
* with B-530 (option)
Measurement accuracy
±7.0°C
±5.0°C
±(0.05% of rdg +3.0°C)
±(0.05% of rdg +3.0°C)
±5.5°C
±(0.05% of rdg +3.0°C)
±(0.05% of rdg +3.0°C)
±(0.05% of rdg +2.0°C)
±(0.05% of rdg +3.0°C)
±(0.05% of rdg +2.0°C)
±(0.1% of rdg +2.5°C)
±(0.1% of rdg +1.5°C)
±3.7°C
±2.7°C
±(0.05% of rdg +2.0°C)
±(0.1% of rdg +2.0°C)
±(0.1% of rdg +2.5°C)
: 1 minute at 1000 Vp-p