MR8740T_Quick guide_eng_20191016H.pdf - 第112页
106 Specications of the Options Effect of radiated radio-frequency electromagnetic eld ±15% f.s. (max.) at 3 V/m Effect of conducted radio-frequency electromagnetic eld ±20% f.s. (max.) at 3 V (in the 2 V f.s. range, …
105
Specications of the Options
Model 8968 High Resolution Unit
Conditions of guaranteed accuracy
Specied under the following conditions: installed in a Memory HiCorder and operated at 23°C ±5°C (73°F ±9°F) in
the humidity range of 20% to 80% RH after a half-hour (at least) warm-up and execution of zero-adjustment.
Product warranty
period
3 years
Guaranteed accuracy
period
1 year
Number of input
channels
2 channels
Measurement range 100, 200, 400 mV f.s., 1, 2, 4, 10, 20, 40, 100, 200, 400 V f.s.
Measurement
accuracy
±0.3% f.s. (with the lter setting set at 5 Hz, operated after zero-adjustment)
Temperature
characteristics
±0.045% f.s./°C
Frequency
characteristics
DC to 100 kHz −3 dB (DC-coupled)
7 Hz to 100 kHz −3 dB (AC-coupled, lower cut-off frequency: 7 Hz±50%)
Noise 500 μV p-p (typ., 1 mV p-p (max.) with the highest sensitivity range and the terminals of
each input connector connected with each other
Common-mode
rejection ratio
80 dB or more (at 50 Hz / 60 Hz, a signal source resistance of 100
Ω
or less)
Low-pass lter Off, 5 ±50%, 50 ±50%, 500 ±50%, 5 k ±50%, 50 k ±50% (Hz); −3 dB
Anti-aliasing lters Cutoff frequency (fc): 20, 40, 80, 200, 400, 800, 2 k, 4 k, 8 k, 20 k, 40 k (Hz)
(Automatically set when the anti-aliasing lter is on.)
Attenuation property: −66 dB or higher at a frequency of 1.5 fc
Input type Unbalanced input (oating)
Input coupling AC/DC/GND
Input resistance 1 M
Ω
±1%
Input capacitance 30 pF ±10 pF (at 100 kHz)
A/D resolution 16 bits
Maximum sampling
rate
1 MS/s
Input terminals Insulated BNC terminal
Maximum input
voltage
400 V DC
Maximum rated
voltage to earth
300 V AC, DC (between each input channel and the enclosure, between any two of input
channels)
Measurement category II, anticipated transient overvoltage: 2500 V
Operating
temperature and
humidity
Consistent with the specications of the Memory HiCorder in which Model 8968 is
installed.
Operating
environment
Consistent with the specications of the Memory HiCorder in which Model 8968 is
installed.
Storage temperature
and humidity
−10°C to 50°C (14°F to 122°F), 80% RH or less (no condensation)
Dimensions Approx. 106W × 19.8H × 196.5D mm (4.17″W × 0.78″H × 7.74″D)
Mass Approx. 250 g (8.8 oz.)
5
Specications
106
Specications of the Options
Effect of radiated
radio-frequency
electromagnetic eld
±15% f.s. (max.) at 3 V/m
Effect of conducted
radio-frequency
electromagnetic eld
±20% f.s. (max.) at 3 V (in the 2 V f.s. range, with 1 V DC applied)
Standards Safety: EN61010
EMC: EN61326 Class A
107
Specications of the Options
Model U8969 Strain Unit
Conditions of guaranteed accuracy
Specied under the following conditions: installed in a Memory HiCorder and operated at 23°C±5°C (73°F±9°F) and
80% RH or less after a half-hour (at least) warm-up and execution of the auto-balance.
Operating
environment
Indoors, Pollution Degree 2, Operating altitude: up to 2000 m (6562 ft.)
Operating
temperature and
humidity
−10°C to 40°C (14°F to 104°F), 80% RH or less (no condensation)
Storage temperature
and humidity
−20°C to 50°C (−4°F to 122°F), 90% RH or less (no condensation)
Standards Safety: EN 61010
EMC: EN 61326 Class A
Dimensions Approx. 106W × 19.8H × 196.5D mm (4.17″W × 0.78″H × 7.74″D)
Mass Approx. 245 g (8.6 oz.)
Product warranty
period
3 years
Guaranteed accuracy
period
1 year
Guaranteed
accuracy period after
adjustment made by
Hioki
1 year
Accessories Model L9769 Conversion Cable ×2
(Compatible connector: NDIS connector PRC03-12A10-7M10.5)
Number of input
channels
2 channels
Input terminals NDIS connector EPRC07-R9FNDIS
Measuring object Strain gauge transducer
Gauge ratio 2.0
Bridge voltage 2 V ±0.05 V
Bridge resistor 120
Ω
to 1 k
Ω
Balance adjustment
range
±10000 µ
ε
or lower
Balancing method Electronic auto-balancing
Measurement range 400, 1000, 2000, 4000, 10000, 20000 µ
ε
f.s.
Frequency
characteristics
DC to 20 kHz, +1/−3 dB
A/D resolution 16 bits (± f.s. = ±25000 data points)
Maximum sampling
rate
200 kS/s
Maximum rated
voltage to earth
30 V rms AC or 60 V DC
(between each input channel and enclosure, between any two of input channels)
Anticipated transient overvoltage: 330 V
Measurement
accuracy
±0.5% f.s. ±4 µ
ε
(with the lter set at 5 Hz)
Temperature
characteristics
Gain: ±0.05% f.s./°C
Zero-position: ±2.5 µ
ε
/°C
5
Specications