MR8740、MR8741_user_manual_eng_20191016H.pdf - 第369页

17.6 Specifications of Modules 357 Chapter 17 S pecifications 16 17 Storag e temper ature a nd hu- midity rang es Same as the Memory HiCorder in which the 8970 is installed Operating environment Same as the Memory HiCord…

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17.6 Specifications of Modules
356
17.6.5 8970 Freq Unit
Temperature and humidity
range for guaranteed accuracy
23°C ± 5°C (73.4 ± 9.0°F), 20% RH to 80% RH
Measurement functions Based on voltage input, measures frequency, rotation speed, power frequency, integral values,
pulse duty ratio, and pulse width.
Connection terminal Insulated BNC terminal
Input resistance 1 M±1%
Input capacitance 30pF±10pF
Maximum input voltage 400 VDC
Maximum rated voltage to
earth
300 VAC, DC (Measurement category II), anticipated transient overvoltage 2500 V (between each
input channel and main unit, and between input channels)
Input type Unbalanced (input isolated from output)
Product warranty period 3 years
Guaranteed accuracy period 1 year
Frequency mode
Measurement ranges 1, 5, 10, 50, 100, 500, 1k, 5 kHz/div (f.s.=20div)
Measurement accuracy ±0.1%f.s. (except for 5 kHz/div range) ±0.7%f.s.(5 kHz/div range)
Measurement ranges DC to 100 kHz (min. pulse width 2 s)
Rotation speed mode
Measurement ranges 100, 500, 1k, 5k, 10k, 50k, 100 kr/min /div (f.s.=20div)
Measurement accuracy ±0.1%f.s. (except for 100 kr/min range) ±0.7%f.s.(100 kr/min range)
Measurement ranges 0 to 2 kr/min (min. pulse width 2 s)
Power frequency mode
Measurement ranges 50 Hz (40 to 60 Hz), 60 Hz (50 to 70 Hz), 400 Hz (390 to 410 Hz) (f.s.=20div)
Measurement accuracy ±0.03 Hz (50 Hz, 60 Hz) ±0.1 Hz (400 Hz)
Integral values mode
Measurement ranges 2k, 10k ,20k ,100k ,200k ,1M counts/div
Measurement accuracy ±range/2000
Measurement ranges DC to 100 kHz (min. pulse width 2 s)
Pulse duty ratio mode
Measurement ranges 5%/div (f.s.=20div)
Measurement accuracy ±1% (10 to 10 kHz) ±4% (10k to 100 kHz)
Measurement ranges 10 Hz to 100 kHz (min. pulse width 2 s)
Pulse width mode
Measurement ranges 500, 1m, 5m, 10m, 50m, 100 ms/div (f.s.=20div)
Measurement accuracy ±0.1%f.s.
Measurement ranges 2 s to 2 s
Measurement resolution Integral values mode: 2000LSB/DIV (f.s.=20 DIV)
Power frequency mode: 100LSB/DIV (f.s.=20 DIV)
Except for Integral values mode and Power frequency mode: 500LSB/DIV (f.s.=20 DIV)
Response time Less than 40 s + sampling interval of instrument in which the device is installed.
Input voltage range ±10 V, ±20 V, ±50 V, ±100 V, ±200 V, ±400 V
Threshold value ±10 V range : -10 to +10 V variable (0.1 V steps), ±20 V range: -20 to +20 V variable (0.2 V steps),
±50 V range : -50 to +50 V variable (0.5 V steps), ±100 V range: -100 to +100 V variable (1 V steps),
±200 V range: -200 to +200 V variable (2 V steps), ±400 V range: -400 to +400 V variable (5 V
steps)
Slope Rising, falling (Frequency, Rotation speed, Power frequency, Integral values mode)
Level High, Low (Duty ratio, Pulse width mode)
Hold Frequency mode/ Rotation speed mode: ON/OFF (1 Hz, 0.5 Hz, 0.2 Hz, 0.1 Hz)
:When OFF is selected and the next measurement value is not determined within the waiting time
period, the frequency or the rotation speed will be determined using the value which is calculated
based on the time period between the timing of the last measurement and the timing of the sampling.
Put it to 0 when the measurement value is below the fixed value.
Smoothing OFF, ON* (Frequency mode,Rotation speed mode)
*:The permissible smoothing frequency is up to 10 kHz.
Low-pass filter OFF, 5, 50, 500, 5k, 50 kHz
Input Coupling DC, AC (Low frequency cut-off in AC-coupled mode : 7 Hz)
Frequency dividing function Setting range: 1 to 4096, by one step (Frequency ,Rotation speed ,Integral values mode)
Integration start timing Start, Trigger (Integral values mode)
Integration limit Hold, Loop (Integral values mode)
Operating temperature and
humidity ranges
Same as the Memory HiCorder in which the 8970 is installed
17.6 Specifications of Modules
357
Chapter 17 Specifications
16
17
Storage temperature and hu-
midity ranges
Same as the Memory HiCorder in which the 8970 is installed
Operating environment Same as the Memory HiCorder in which the 8970 is installed
Applicable standards Safety EN 61010, EMC EN 61326 Class A
Dimensions Approx. 106W x 19.8H x 196.5D mm (4.17"W x 0.78"H x 7.74"D) (excluding projections),
Mass Approx. 250 g (8.8 oz.)
17.6 Specifications of Modules
358
*: During current measurement, add the accuracy and characeristic of clamp sensor using with Model 8971.
*
2
: The instrument recognizes this as a 500 A AC/DC sensor is connected; setting the ratio of the scaling function to 2 is required.
17.6.6 8971 Current Unit
Temperature and humidity
range for guaranteed accuracy
23°C ± 5°C (73.4 ± 9.0°F), 20% RH to 80% RH (when zero adjustment is executed 30 minutes
after power on)
Product warranty period 3 years
Guaranteed accuracy period 1 year
Number of input channels 2 channels
Applicable current sensors Model 9272-10, 9277, 9278, 9279, 9709, CT6841, CT6843, CT6844, CT6845, CT6846,
CT6862, CT6863, CT6865
Hioki current sensors with RM515EPA-10PC (Hirose) installed
(Supported conversion ratios: 2 V/20 A, 2 V/50 A, 2 V/200 A, 2 V/500 A, 2 V/1000 A*
2
)
(To connect with Model 8971, using Model 9318 Conversion Cable)
Measurement ranges When using the Model 9272-10 (20 A), 9277, CT6841:
100 m, 200 m, 500 m, 1, 2, 5 A/div
When using the Model 9272-10 (200 A), 9278, CT6843, CT6863:
1, 2, 5, 10, 20, 50 A/div
When using the Model 9279, 9709, CT6844, CT6845, CT6846*
2
, CT6865*
2
:
2, 5, 10, 20, 50, 100 A/div
When using the Model CT6862: 200 m, 500 m, 1, 2, 5, 10 A/div
Measurement accuracy* ±0.65%f.s. (filter 5 Hz ON)
±0.85%f.s. (filter 5 Hz ON, for using with Model 9278 or 9279)
RMS accuracy* ±1%f.s. (DC, 30 to 1 kHz), ±3%f.s. (1 kHz to 10 kHz), (Sine wave input, filter 5 Hz ON)
Response time* 100 ms (rise 090%f.s.)
Crest factor 2
Temperature characteristic* ±0.075%f.s./°C
Frequency characteristic* DC Coupling: DC to 100 kHz ±3 dB
AC Coupling: 7 Hz to 100 kHz ±3 dB (low cut-off frequency 7 Hz±50%)
Noise* 10 mAp-pmax (sensitivity range, with input shorted) (for 20 A/2V range)
Low-pass filter OFF, 5, 50, 500, 5k, 50 k±50%(Hz)-3 dB
Input type Unbalanced (Not insulated)
Input coupling AC/DC/GND
Input resistance 1M±1%
A/D resolution 12 bit
Maximum sampling rate 1 MS/s
Input terminals Sensor connector HR10A-10R-S (HIROSE)
Operating temperature and
humidity ranges
Same as the Memory HiCorder in which the 8971 is installed
Operating environment Same as the Memory HiCorder in which the 8971 is installed
Storage temperature and hu-
midity ranges
-10 to 50°C (14 to 122°F), 80% RH or less (no condensation)
Dimensions Approx. 106W x 19.8H x 196.5D mm (4.17"W x 0.78"H x 7.74"D) (excluding projections)
Mass Approx. 250 g (8.8 oz.)
Applicable Standards Safety EN 61010
EMC EN 61326 Class A
Accessories For connecting the clamp sensor: Model 9318 Conversion Cable x 2, Instruction Manual
Number of the 8971 available
for Memory HiCoder
Max. 4 unit (for Model MR8740)
(cannot be used with MR8741)