4-4
CHAPTER 4 Specifications
Input Unit Specifications
Item Description
Number of input channels 10 channels
Input terminal type M3 screw type terminal
Input method Photo MOS relay scanning system
All channels isolated, balanced input
Scan speed 10 ms/1 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)
Humidity: 0 to 100% (voltage 0 V to 1 V scaling conversion) *with B-530 (op-
tion)
Measurement accuracy
(23°C ±5°C)
when 30 minutes or more have
elapsed after the power is
turned on
• Filter ON (10)
• Sampling 1s (10CH)
• GND connected
Voltage: 0.1% of F.S.
Temperature
Thermocouple Measurement Temperature
Range (°C)
Measurement Accuracy
R/S 0
≤
TS
≤
100
100 < TS
≤
300
R : 300 < TS
≤
1600°C
S : 300 < TS
≤
1760°C
±5.2°C
±3.0°C
±(0.05% of rdg +2.0°C)
±(0.05% of rdg +2.0°C)
B 400
≤
TS
≤
600
600 < TS
≤
1820°C
±3.5°C
±(0.05% of rdg +2.0°C)
K – 200
≤
TS
≤
–100
– 100 < TS
≤
1370°C
±(0.05% of rdg +2.0°C)
±(0.05% of rdg +1.0°C)
E – 200
≤
TS
≤
–100
– 100 < TS
≤
800°C
±(0.05% of rdg +2.0°C)
±(0.05% of rdg +1.0°C)
T – 200
≤
TS
≤
–100
– 100 < TS
≤
400°C
±(0.1% of rdg +1.5°C)
±(0.1% of rdg +0.5°C)
J – 200
≤
TS
≤
–100
– 100 < TS
≤
100
100 < TS
≤
1100°C
±2.7°C
±1.7°C
±(0.05% of rdg +1.0°C)
N 0
≤
TS
≤
1300°C ±(0.1% of rdg +1.0°C)
W 0
≤
TS
≤
2000°C ±(0.1% of rdg +1.5°C)
Reference contact compensation accuracy ±0.5°C
* Thermocouple diameters T: 0.32
φ
, others: 0.65
φ
Reference contact
compensation accuracy
Internal/External switching
A/D converter Method :∆∑ method
Resolution :16-bit (Effective resolution: About 1/40,000 of the +/- range)
Temperature coefficient Gain : 0.01% of F.S./°C
Zero : 0.02% of F.S./°C
* Occurs when sampling speed is 10, 20, or 50 ms.
Input resistance 1 M Ω ±5%
Allowable signal source
resistance
Within 300 Ω
Maximum permissible input
voltage
Between +/– input terminals :60 Vp-p
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 50 MΩ (at 500 VDC)
Common mode rejection ratio At least 90 dB (50/60 Hz; signal source 300 Ω or less)
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.
If the sample interval exceeds 5 seconds, the average value of data obtained in
a sub-sample (5 seconds) is used.
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