MR8740T_Quick guide_eng_20191016H.pdf - 第111页

105 Specications of the Options Model 8968 High Resolution Unit Conditions of guaranteed accuracy Specied under the following conditions: installed in a Memory HiCorder and operated at 23°C ±5°C (73°F ±9°F) in the humi…

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104
Specications of the Options
Standards Safety: EN61010
EMC: EN61326 Class A
Accessories Ferrite clamp-on choke ×2
Options Model 9810 Thermocouple (K)
Table: Measurable ranges, resolutions, and measurement accuracy of each thermocouple
type and measurement range
Measurement
target
Measurement range Measurable range Resolution Measurement accuracy
Thermocouple*
1
K*
2
200°C f.s. −100°C to 200°C 0.01°C ±0.1% f.s. ±1°C
(0°C or higher)
±0.1% f.s. ±2°C
(−200°C or higher but
lower than 0°C)
1000°C f.s. −200°C to 1000°C 0.05°C
2000°C f.s. −200°C to 1350°C 0.1°C
J*
2
200°C f.s. −100°C to 200°C 0.01°C
1000°C f.s. −200°C to 1000°C 0.05°C
2000°C f.s. −200°C to 1100°C 0.1°C
E*
2
200°C f.s. −100°C to 200°C 0.01°C
1000°C f.s. −200°C to 800°C 0.05°C
2000°C f.s. −200°C to 800°C 0.1°C
T*
2
200°C f.s. −100°C to 200°C 0.01°C
1000°C f.s. −200°C to 400°C 0.05°C
2000°C f.s. −200°C to 400°C 0.1°C
N*
2
200°C f.s. −100°C to 200°C 0.01°C
1000°C f.s. −200°C to 1000°C 0.05°C
2000°C f.s. −200°C to 1300°C 0.1°C
R*
2
200°C f.s. 0°C to 200°C 0.01°C ±0.1% f.s. ±3.5°C
(0°C or higher but lower
than 400°C)
(For Type B, accuracy
is not guaranteed below
400°C.)
±0.1% f.s.±3°C (400°C
or higher)
1000°C f.s. 0°C to 1000°C 0.05°C
2000°C f.s. 0°C to 1700°C 0.1°C
S*
2
200°C f.s. 0°C to 200°C 0.01°C
1000°C f.s. 0°C to 1000°C 0.05°C
2000°C f.s. 0°C to 1700°C 0.1°C
B*
2
1000°C f.s. 400°C to 1000°C 0.05°C
2000°C f.s. 400°C to 1800°C 0.1°C
W*
3
(WRe5-
26)
200°C f.s. 0°C to 200°C 0.01°C
1000°C f.s. 0°C to 1000°C 0.05°C
2000°C f.s. 0°C to 2000°C 0.1°C
*1: Not including reference junction compensation accuracy
*2: JIS C 1602-1995
*3: ASTM E-988-96
105
Specications of the Options
Model 8968 High Resolution Unit
Conditions of guaranteed accuracy
Specied 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 specications of the Memory HiCorder in which Model 8968 is
installed.
Operating
environment
Consistent with the specications 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
Specications
106
Specications 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