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 M
Ω
±
5%
Allowable signal source
Within 300
Ω
resistance
Maximum permissible
B/– 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 50M
Ω
(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)
N
0
≤
Ts
≤
1300
°
C
±
(0.1% of rdg +1.0
°
C)
W
0
≤
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
