Hioki 8841 - Page 429

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19.2 Analog Inputs
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8
9
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14
A
Temperature measurement
accuracy
K, E, J, T, N
±
0.1% f.s.
±
1.0
o
C
±
0.1% f.s.
±
2.0
o
C (-200
℃
to 0
o
C)
R, S
±
0.1% f.s.
±
3
o
C
B (effective measurement range: 400
o
C to 1800
o
C)
±
0.1%f.s.
±
4
o
C
Reference junction
compensation
Selectable internal or external
Reference junction
compensation accuracy
±
0.1%f.s.
±
1.5
o
C (with internal reference contact compensation and input
terminal in state of temperature equilibrium)
Temperature characteristic
±
0.05%f.s./
o
C(sensor:K,E,J,T,N,withdriftcompensationmodeOFF)
±
0.25%f.s./
o
C (sensor: R, S, B, with drift compensation mode OFF)
±
0.04%f.s./
o
C (all sensors, with drift compensation mode ON)
Frequency characteristic
DC to 1 kHz
＋1
−
3
dB
(data update rate: 250
μ
s
±
70%, with drift
compensation mode OFF) (data update rate: 1 s
±
20%, with drift
compensation mode ON)
Low-pass filter
OFF, 5, 500
±
50% (Hz) (-3 dB)
Input terminals
2-terminal terminal block
Input resistance
5.1 M
Ω±
5%
Common mode rejection
ratio
80 dB minimum (at 50/60 Hz and with signal source resistance
100
Ω
maximum)
Input type
Unbalanced input (isolated from output)
A/D resolution
12 bits
Maximum sampling speed
1 MS/s (However, update rate differs with temperature input.)
Maximum input voltage
30 Vrms or 60 VDC
Maximum rated voltage to
earth
30 Vrms or 60 VDC
Operational ranges for
temperature and humidity
Same as the MEMORY HiCORDER in which the 8937 is installed
Location for use
Same as the MEMORY HiCORDER in which the 8937 is installed
Temperature and humidity
ranges for storage
Temperature: -10
o
Cto50
o
C (14
｡
Fto122
｡
F)
Relative humidity: 80%RH maximum (with no condensation)
Effect of radiated radio-
frequency electromagnetic
field
±
2% f.s. at 3 V/m (at 5 mV/DIV)
Dielectric strength
Between 8937 and main unit, between 8937 and input unit: 400 VAC for a
minute
Dimensions
Approx. 170W
×
20H
×
148.5D mm (6.69"W
×
0.79"H
×
5.832"D)
(excluding projections)
Mass
Approx. 300 g (10.6 oz)
Standard Applying
EMC EN61326, Class A
Safety EN61010
Pollution Degree 2, measurement category
Ⅰ
(anticipated transient overvoltage 330 V)
Common specifications