4-4
Specifications
Input Unit Specifications
Item Description
Number of input channels 20 channels (maximum 200 channels with extension unit)
Input terminal type M3 screw type terminals
Input method Photo MOS relay scanning system
All channels isolated, balanced input
Scan speed 0.1s/10 ch maximum
Measurement ranges 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)
• Resistance temperature detector: Pt100, JPt100, Pt1000 (IEC751)
Humidity:
0 to 100% (voltage 0 V to 1 V scaling conversion) *with B-530 (option)
Measurement accuracy
*1
Voltage: 0.1% of F.S.
(23°C ±3°C) Temperature
•
When 30 minutes or more
• Thermocouple
have elapsed after power
was switched on
• Sampling 1 s/20 ch
• Filter ON (10)
• GND connected
*1: Thermocouple diameters T: 0.32
φ
, others: 0.65
φ
• Resistance temperature detector
Reference contact Internal/External switching
compensation accuracy
A/D converter 16 bits (out of which 14 bits are internally acknowledged)
Temperature coefficient Gain: 0.01% of F.S./ °C
Input resistance 1 MΩ ±5%
Allowable signal source Within 300 Ω
resistance
Maximum permissible Between +/– terminals : 60 Vp-p
input voltage Between input terminal/input terminal : 60 Vp-p
Between input terminal/GND : 60 Vp-p
Withstand voltage Between input terminal/input terminal : 1 minute at 350 Vp-p
Between input terminal/GND : 1 minute at 350 Vp-p
Insulation resistance Between input terminal/GND : At least 50MΩ (at 500 VDC)
Common mode rejection At least 90 dB (50/60 Hz; signal source 300 Ω or less)
ratio
Noise At least 48 dB (with +/– terminals shorted)
Filter Off, 2, 5, 10, 20, 40
Filter operation is on a moving average basis.
The average value of the set sampling count is used.
Thermo couple Measurement Temperature Measurement Accuracy
Range (°C)
R/S 0 ≤ Ts ≤ 100 ±5.2°C
100 < Ts ≤ 300 ±3.0°C
R: 300 < Ts ≤ 1600°C ±(0.05% of rdg +2.0°C)
S: 300 < Ts ≤ 1760°C ±(0.05% of rdg +2.0°C)
B 400 ≤ Ts ≤ 600 ±3.5°C
600 < Ts ≤ 1820°C ±(0.05% of rdg +2.0°C)
K -200 ≤ Ts ≤ -100 ±(0.05% of rdg +2.0°C)
-100 < Ts ≤ 1370°C ±(0.05% of rdg +1.0°C)
E –200 ≤ Ts ≤ –100 ±(0.05% of rdg +2.0°C)
–100 < Ts ≤ 800°C ±(0.05% of rdg +1.0°C)
T –200 ≤ Ts ≤ –100 ±(0.1% of rdg +1.5°C)
–100 < Ts ≤ 400°C ±(0.1% of rdg +0.5°C)
J –200 ≤ Ts ≤ –100 ±2.7°C
–100 < Ts ≤ 100 ±1.7°C
100 < Ts ≤ 1100°C ±(0.05% of rdg +1.0°C)
N0 ≤ Ts ≤ 1300°C ±(0.1% of rdg +1.0°C)
W0 ≤ Ts ≤ 2315°C ±(0.1% of rdg +1.5°C)
Reference contact compensation accuracy ±0.5°C
Type Measurement Temperature Applied current Measurement Accuracy
Range (°C)
Pt100 -200 to 850°C (FS=1050°C) 1mA ±1.0°C
Jpt100 -200 to 500°C (FS=700°C) 1mA ±0.8°C
Pt1000 -200 to 500°C (FS=700°C) 0.2mA ±0.8°C
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