Atec Yokogawa-WT1800 - Manual (Page 11)

Comparisons Comparisons Comparisons
Comparison between WT1600 and WT1800 Comparison between WT1600 and WT1800
Characteristics comparison Characteristics comparison
g Examples of frequency characteristics of the WT series and the PZ4000
g Comparison with the previous model (main changes)
Examples of frequency and power accuracy characteristics Total power error with rated range input for an arbitrary power factor (at 50/60 Hz)
Influence of the common-mode voltage on the readings Example of the frequency and power accuracy for zero power factor
2
1
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
1 10 100 1000 10000 100000 1000000
1.5
1
0.5
0
-0.5
-1
-1.5
1 10 100 1000 10000
WT1600 WT1800
Voltage input terminal
Current input terminal
External sensor input terminal
Basic voltage/current accuracy
Basic power accuracy
Frequency range
Voltage/Current frequency range (-3 dB, typical)
Sampling speed
Wiring setting method
Selects specified range
Effective input range
Screen size and resolution
Data update rate
Line filter
Frequency filter
Harmonic measurement
Harmonic mode
Fundamental frequency of the PLL source
Upper limit of the measured order
Harmonic analysis number
Integration
Integration mode
Delta computation function
Auto printing function
Screen print-out function
Printer width/length
Crest factor (CF=peak/minimum rms)
Average (moving average)
Store function
Store items
Screen shot image format
Frequency measurements
Rotation speed input
Universal analog inputs
SCSI interface
Internal HDD
DA output channels numbers
DA output resolution
Data memory
Communication command compatibility
GP-IB communication
Ethernet communication
Ethernet communication protocol
USB communication
RS232 communication
Plug-in terminal (safety terminal)
Large binding post
Insulated BNC connector (standard)
+/-0.1%
+/-0.1%
DC, 0.5 Hz to 1 MHz
No definition
approximately 200 kS/s
Selects wiring system pattern
N/A
1% to 110% of range rating
6.4-inch (640×480)
50 m, 100 m, 200 m, 500 m, 1, 2, 5 [sec]
OFF, 500 Hz, 5.5 kHz, 50 kHz
OFF or ON
Standard
Selects normal or harmonic mode
1 to 10 Hz (use external sampling clock)
10 Hz to 440 Hz (internal sampling clock)
Up to 100 order
1 system
Active power, current
Charge/discharge mode
Standard
N/A
Built-in printer, Ethernet network printer
80 mm / 10 m
300
Selects from 8, 16, 32 or 64 counts
Store / Recall
Numeric, waveform (1002 peak to peak data)
TIFF, BMP, Post Script, PNG and JPEG
3 sources (standard)
1 input (/MTR option)
N/A
Yes (/C7)
Yes (10 GB, /C10)
30 ch (/DA option)
12 bits
approximately 11 MB (internal), FDD, HDD
---
Standard (select GP-IB or RS-232)
Option (with HDD and SCSI option)
Yokogawa original protocol
N/A
Standard (select GP-IB or RS-232)
Plug-in terminal (safety terminal)
Large binding post
Insulated BNC connector (option)
+/-0.1%
+/-0.05%
DC, 0.1Hz to 1 MHz
5 MHz (-3 dB, typical)
approximately 2 MS/s
Selects wiring and element numbers
Yes
1% to 110% of range rating
8.4-inch (1024×768)
50 m, 100 m, 200 m, 500 m, 1, 2, 5, 10, 20 [sec]
OFF, digital filter 100 Hz to 100 kHz (100 Hz step)
analog filter 300 kHz, 1 MHz
OFF, 100 Hz or 1 kHz
/G5 option or /G6 option
Simultaneous normal and harmonic measurement
0.5 Hz to 2600 Hz (internal sampling clock)
(without external sampling clock function)
Up to 500 order
select from 1 system (/G5 option) or 2 systems (/G6 option)
Active power, current, apparent power, reactive power
Charge/discharge, sold/bought mode
/DT option
Yes
Built-in printer
80 mm / 10 m
300
Sets between from 2 to 64 counts
Store
Numeric
BMP, PNG and JPEG
3 sources (standard), 12 sources (/FQ option)
A-phase, B-phase, Z-phase input (/MTR option)
Two analog inputs (/AUX option)
N/A
N/A
20 ch (/DA option)
16 bits
Direct save to USB device up to 1 GB
Approximately 90% command compatibility
Standard
Standard (No HDD and No SCSI)
VXI11
USB-TMC
N/A
* There are restrictions on some specifications and functions.
For details, refer to the specifications.
* A table comparing commands between the two models will be
published on the Products page of the Yokogawa website.
1
0.1
0.01
0.001 0.01 0.1 1
WT230
150 V / 1 A range
WT500
100 V / 0.5 A range
WT1800
150 V / 1 A range
WT3000
100 V / 5 A range
PZ4000
300 V pk / 1 A pk range
WT230
150 V / 1 A range
WT500
100 V / 0.5 A range
WT1800
150 V / 1 A range
WT3000
100 V / 5 A range
PZ4000
300 V pk / 1 A pk range
WT230 WT500 WT1800 WT3000 PZ4000
Frequency [Hz]
Frequency [Hz] Frequency [Hz]
cos Ø = power factor
Accurac
y (cos Ø = 1) [% of range]
Error [% of range] Accurac
y [% of range]
Total error for the po
wer range value [% of range]
3
2
1
0
1 10 100 1000 10000 100000
WT230
150 V
WT230
1 A range
WT500
15 V range
WT500
0.5 A range
WT1800
100 V range
WT1800
1 A range 5 A element
WT1800
1 A range 50 A element
WT3000
100 V range
WT3000
0.5 A range
PZ4000
200 V pk range
PZ4000
2 A pk range
12