Data Sheet

10
STRAIN UNIT 8939
(Accuracy at 23 ±5°C/73 ±9°F, 35 to 80 % rh after 1 hour of warm-up
time and auto-balance; accuracy guaranteed for 1 year)
Measurement
functions
Number of channels: 2, for distortion measurement
(electronic
auto-balancing, balance adjustment range within ±10000με)
Input connectors
Via conversion cable, TAJIMI PRC03-12A10-7M10.5, Max. rated voltage to
earth: 30Vrms or 60V DC
(with input isolated from the unit, the maximum voltage that
can be applied between input channel and chassis and between input channels without damage)
Suitable
transducer
Strain gauge converter, bridge impedance: 120Ω to 1kΩ, bridge
voltage 2 ±0.05V
Measurement
range
20με to 1000με/DIV, 6 ranges, full scale: 20DIV, low-pass filter:
10Hz/30Hz/300Hz/3kHz
Measurement resolution
1/80 of measurement range (using 12-bit A/D conversion; installed in the 8826)
Highest sampling rate
1MS/s (simultaneous sampling in 2 channels)
Accuracy After auto-balancing
DC amplitude: ±(0.5% of full scale +2με), zero position: ±0.5% of full scale
Frequency characteristics
DC to 20 kHz +1/−3dB
Max. allowable input
10V DC + AC peak (the maximum voltage that can be applied across input pins without damage)
■ Main unit specifications
■ Input unit specifications (sold separately)
ANALOG UNIT 8936
(Accuracy at 23 ±5°C/73 ±9°F, 35 to 80 % rh after 30 minutes of warm-up
time and zero-adjust; accuracy guaranteed for 1 year)
Measurement functions
Number of channels: 2, for voltage measurement
Input connectors
Isolated BNC connector (input impedance 1MΩ, input capacitance 30pF), Max. rated
voltage to earth: 370V AC, DC
(with input isolated from the unit, the maximum voltage that
can be applied between input channel and chassis and between input channels without damage)
Measurement
range
5mV to 20V/DIV, 12 ranges, full scale: 20DIV, AC voltage for
possible measurement/display using the memory function:
280V rms, low-pass filter: 5Hz/500Hz/5kHz/100kHz
Measurement resolution
1/80 of measurement range (using 12-bit A/D conversion; installed in the 8826)
Highest sampling rate
1MS/s (simultaneous sampling in 2 channels)
Accuracy
DC amplitude: ±0.4% of full scale, zero position: ±0.1% of full scale (after zero adjustment)
Frequency characteristics
DC to 400kHz ±3dB, with AC coupling: 7Hz to 400kHz ±3dB
Input coupling
DC, GND, AC
Max. allowable input
400V DC (the maximum voltage that can be applied across input pins without damage)
Dimensions and mass: approx. 170 (6.69in) W × 20 (0.79in) H × 148.5 (5.85in) D mm,
approx. 290 g (10.2 oz) Accessories: None
FFT ANALOG UNIT 8938
(Accuracy at 23 ±5°C/73 ±9°F, 35 to 80 % rh after 30 minutes of warm-up
time and zero-adjust; accuracy guaranteed for 1 year)
Measurement functions
Number of channels: 2, for voltage measurement
Anti-aliasing filter
Integrated filter for suppressing aliasing distortion caused by FFT
processing
(automatic cutoff frequency setting/OFF)
Other functions
Other specifications same as the ANALOG UNIT 8936
VOLTAGE/TEMP UNIT 8937
(Accuracy at 23 ±5°C/73 ±9°F, 35 to 80 % rh after 1 hour of warm-up
time and zero-adjust; accuracy guaranteed for 1 year)
Measurement functions
Number of channels: 2, for voltage measurement/temperature measurement with thermocouple
Input connectors
Voltage input: metallic BNC connector (input impedance 1MΩ, input capacitance 50pF),
thermocouple input: terminal connector
(input impedance min. 5.1MΩ), Max. rated
voltage to earth: 30Vrms or 60V DC
(with input isolated from the unit, the maximum voltage
that can be applied between input channel and chassis and between input channels without damage)
Voltage measurement
range
500μV to 2V/DIV, 12 ranges, full scale: 20DIV, low-pass filter: 5Hz/
500Hz/ 5kHz/ 100kHz, Measurement resolution: 1/80 of measurement
range
(using 12-bit A/D conversion; installed in the 8826)
Temperature
measurement range
10°C to 100°C/DIV, 4 ranges, full scale: 20DIV, low-pass filter:
5Hz/500Hz, Measurement resolution:1/80 of measurement range
(using 12-bit A/D conversion; installed in the 8826)
Thermocouple
range
K: -200 to 1350°C, E: -200 to 800°C, J: -200 to 1100°C, T: -200 to 400°C,
N: -200 to 1300°C, R: 0 to 1700°C, S: 0 to 1700°C, B: 300 to 1800°C,
Reference junction compensation: internal/ external
(switchable)
Highest sampling rate
Voltage input: 1MS/s, Temperature measurement: 4kS/s
(simultaneous sampling in 2 channels)
Accuracy
Voltage input: DC amplitude ±0.4% of full scale, zero position ±0.15% of full
scale, Temperature measurement (K, E, J, T, N): ±0.1% of full scale ±1°C,
±0.1% of full scale ±2°C (-200 to 0°C), (R, S): ±0.1% of full scale ±3°C, (B):
±0.1% of full scale ±4°C (400 to 1800°C) , Reference junction compensation
accuracy: ±0.1% of full scale ±1.5 °C
(internal reference junction compensation)
Frequency
characteristics
Voltage input: DC to 400 kHz +1/−3dB
Temperature measurement: DC to 1kHz +1/−3dB
Input coupling
DC, GND, AC
Max. allowable input
30Vrms or 60V DC (the maximum voltage that can be applied across input pins without damage)
Dimensions and mass: approx. 170 (6.69in) W × 20 (0.79in) H × 148.5 (5.85in) D mm,
approx. 300 g (10.6 oz) Accessories: None
Dimensions and mass: approx. 170 (6.69in) W × 20 (0.79in) H × 148.5 (5.85in) D mm,
approx. 250 g (8.8 oz) Accessories: Conversion cable × 2
F/V UNIT 8940
(Accuracy at 23 ±5°C/73 ±9°F, 35 to 80 % rh after 30 minutes of warm-up
time and zero-adjust; accuracy guaranteed for 1 year)
Measurement
functions
Number of channels: 2, for voltage input based frequency measurement, integration,
pulse duty ratio, current
(with optional clamp-on sensor), and voltage measurement
Input connectors
Metallic BNC connector (input impedance 1MΩ, input capacitance 60pF), sensor
connector (dedicated connector for clamp-on sensor via conversion cable, common
ground with recorder)
, Max. rated voltage to earth: 30Vrms or 60V DC
(with input isolated from the unit, the maximum voltage that can be applied between
input channel and chassis and between input channels without damage)
Compatible current sensors 9270, 9271, 9272, 9277, 9278, 9279, 3273, 3273-50
Measurement
range
Frequency: DC to 100kHz, with 0.05Hz to 5kHz/DIV, 11 ranges, 5 (r/
min)
to 500 (r/min)/DIV, 5ranges, P50Hz (40 to 60Hz), P60Hz (50 to 70Hz)
* Power line frequency measurement requires the DIFFERENTIAL PROBE 9322 or PT 9303,
Accuracy: ±0.2% of full scale
(except 10kHz/DIV range), ±0.7% of full
scale
(10kHz/DIV range), ±0.032Hz (P50Hz, P60Hz range)
Integration: DC to 90kHz, with 5counts to 500kcounts/DIV, 11 ranges
Pulse duty ratio: 10Hz to 100kHz, with 100% of full scale, 1 range,
Accuracy: ±1% of full scale (10Hz to 10kHz)
Threshold: −10 to +10V (settable in 0.2V steps)
Full scale: 10DIV, Max. allowable input: 30Vrms or 60V DC
(the
maximum voltage that can be applied across input pins without damage)
Measurement
range
Voltage: 0.5mV to 2V/DIV, 12 ranges
Current: 5mA to 100A/DIV, 10 ranges, using current sensor
(powered
from the 8940, max. 4 sensors total)
DC amplitude accuracy: ±0.4% of full scale, zero position ±0.15%
of full scale
(current measurement accuracy dependent on sensor accuracy/
characteristics)
Frequency characteristics: DC to 400kHz ±3dB
Full scale: 20DIV, Max. allowable input: 30Vrms or 60V DC
(the
maximum voltage that can be applied across input pins without damage)
Measurement resolution
1/80 of measurement range (installed in the 8826, excluding current range when using 9279)
Highest sampling rate
1MS/s (simultaneous sampling in 2 channels), (frequency/duty ratio
measurement: 1.125μs cycle)
Other functions
Voltage input pull-up: ON (10kΩ)/OFF, input coupling: DC, GND, AC
(voltage/current), DC (others), low-pass filter: 5Hz/500Hz/5kHz/100kHz
Dimensions and mass: approx. 170 (6.69in) W × 20 (0.79in) H × 148.5 (5.85in) D mm,
approx. 300 g (10.6 oz) Accessories: None
CONVERSION CABLE 9318 (to connect 9270 to 9272, 9277 to 9279 and 8940)
CONVERSION CABLE 9319 (to connect 3273, 3273-50 and 8940)
■ PC Software Specifications
Wave Viewer (Wv) Software (Application disk CD-R, bundled accessory)
Functions
• Simple display of waveform file
• Text conversion: convert binary data file to text format, with
selectable space or tab separators in addition to CSV, and speci-
fiable section, thinning available
• Display format settings: scroll functions, enlarge/reduce dis-
play, display channel settings
• Others: voltage value trace function, jump to cursor/trigger
position function
Compatible PC operating systems
Windows 95/98/Me, Windows NT 4.0 (SP3 or later), 2000, XP
REC & MEM functions (version 2.00 or later. Real-time save function: version 2.20 or later)
Time axis
(REC)
20ms to 1hour/DIV; 16 settings, 1 DIV = 100 samples, time axis
compression 1/2 to 1/500, 8 settings
Note: Sampling period 1/100 of time axis range at memory recorder function
Time axis
(MEM)
100μs to 5 minutes/DIV; 20 settings, 1 DIV = 100 samples, time axis
zoom ×2 to ×10; 3 settings, compression 1/2 to 1/10,000, 12 settings
Note: Sampling period 1/100 of time axis range (min. 1μs)
Recording length
REC: Settable in 1-division steps, 25 to 1,000 DIV (5,000 DIV at
expanded memory)
, or continuous
MEM: Settable in 1-division steps, 25 to 2,000 DIV
(10,000 DIV at
expanded memory)
Trigger source
REC: timer trigger, or OFF
MEM: CH1 to CH32 (analog), logic A to H, or external trigger
Real-time save
functions
Note: Used with the PC card,
firmware version 2.50 or later
Time axis: 100ms/DIV to 5 minutes/DIV (less than 16 channels),
200ms/DIV to 5 minutes/DIV
(more than 17 channels) (1 DIV=100
samples, sampling period 1/100 of time axis range)
Save destination: PC card, or MO disk in the optional MO UNIT 9598
Save time: Depending on free capacity of the PC card, or MO disk
Trigger: trigger settings are not applicable to the MEM waveform,
and the start of MEM waveform recording coincides with the start
of the REC waveform.
Time axis at REC: 500ms/DIV to 1 hour/DIV
(less than 16 channels),
1s/DIV to 1 hour/DIV
(more than 17 channels) (1 DIV=100 samples,
sampling period 1/100 of time axis range)
Other functions
Only REC waveform is output when printer output is started,
reprinting of stored REC waveform data
(last 1,000 DIV; or 5,000
DIV at expanded memory)
, Additional recording function (recording is
resumed without overwriting previous data)
, variable display
FFT functions (version 2.00 or later.)
Analysis mode
Storage waveform, Linear spectrum, RMS spectrum, Power
spectrum, Cross-power spectrum, Auto-correlation function,
Histogram, Transfer function, Cross-correlation function, Unit-
impulse response, Coherence function, Octave analysis
Analysis channels
1 or 2 selected channels out of all analog channels
Frequency range
133mHz to 400kHz, External, (resolution 1/400, 1/800, 1/2000, 1/4000)
Number of sampling points
1000, 2000, 5000, 10000 points
Windows
Rectangular, Hanning, Exponential
Averaging
function
Time axis / frequency axis simple averaging, exponential
averaging, peak hold