User Manual

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19.2 Analog Inputs
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16
17
18
19
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
A
Reference contact
compensation accuracy
±0.1% f.s.±1.5℃ (with internal reference contact compensation and
input terminal in state of temperature equilibrium)
Temperature characteristic ±0.05%f.s./℃ (sensor: K, E, J, T, N, with drift compensation mode OFF)
±0.25%f.s./℃ (sensor: R, S, B, with drift compensation mode OFF)
±0.04%f.s./℃ (all sensors, with drift compensation mode ON)
Frequency characteristic
DC to 1 kHz
＋1
−3
dB (data update rate: 250μs±70%, with drift
compensation mode OFF) (data update rate: 1 s±20%, with drift
compensation mode ON)
Input terminals 2-terminal terminal block
Input resistance 5.1 MΩ±5%
Low-pass filter OFF, 5, 500±50% (Hz) -3 dB
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 V rms or 60 V DC
Maximum rated voltage to
earth
30 V rms or 60 V DC
Operational ranges for
temperature and humidity
Same as the MEMORY HiCORDER in which the 8937 is installed
Operating place Same as the MEMORY HiCORDER in which the 8937 is installed
Temperature and humidity
ranges for storage
Temperature: -10℃ to 50℃ (14
｡
F to 122
｡
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 range)
Dielectric strength Between 8937 and main unit, between 8937 and input unit: 400 V AC fo
r
a minute
Dimensions Approx. 170 W×20 H×148.5 D mm (6.69" W×0.79" H×5.832" D mm
)
(excluding projections)
Mass Approx. 300 g (10.6 oz)
Standard Applying EMC
Safety
EN61326, ClassA
EN61010
Pollution Degree 2, measurement category
(anticipated transient overvoltage 330 V)
Common specifications