Specifications

9










 Voltage input terminals
 Current external sensor input terminals
 Current direct input terminals
 GP-IB port
 BNC connector for two-system
synchronized measurement
Standard features
 Serial (RS-232) port (option/C2)
or USB port (PC) (option/C12)
 Ethernet port(100BASE-TX/10BASE-T)
(option/C7)
 VGA port (option/V1)
 D/A output (option/DA)
 Torque and speed input terminals
(motor version)
Optional features
䉴 Rear Panel
䉴 Example of basic characteristics showing the WT3000’s high
precision and excellent stability
10 100 1,000 10,000 100,000 1,000,000
Example of frequency versus power accuracy characteristic
Error (% of reading)
Frequency (Hz)
20
15
10
5
0.0
–5
–10
–15
–20
100 V/5A range
Total power error with rated range input
for an arbitrary power factor (50/60Hz, 30A input element)
Total Error (% of range)
Power factor
1.000%
0.100%
0.010%
0.001%
0.01
0.01 0.1 1
WT3000
WT3000
WT3000
WT2000
WT2000
WT2000
10
8
6
4
2
0
–2
Effect of common mode voltage on reading value
Error (% of range)
Frequency (Hz)
1 10,000 100,000
500 mA range
15 V range
Example of frequency characteristic
Error (% of range)
Frequency (Hz)
10 100 1,000 10,000 100,000 1,000,000
100 V/5A range
15
10
5
0
-5
-10
-15
REAR PANEL
CHARACTERISTICS