4-6
IM 707231-01E
4.4
Specifications for the 30-CH Scanner Box
Number of Input Channels
30
Input Format
Isolation between input and ground
Functional isolation between the Input channels*.
* Functional isolation means insulation that removes the effect of noise from the electric potential
difference occurring between 2 points, and is intended to satisfy measurement specifications
rather than to provide protection from electric shock.
Input Terminal type
M4 Screw
The maximum allowable cross-sectional area per one cable (due to the restriction on
the area of the cover opening) when connecting to all input terminals.
When using the cable clamp: 2 mm
2
Without the cable clamp:
19 mm
2
Operating Conditions
Temperature: 5 to 40
°
C
Humidity:
20-80% RH (except maximum wet-bulb temperature of 29
°
C, no
condensation)
Maximum Allowable Input Voltage
30 VACrms, 42.4 Vpeak or
±
60 VDC between H and L terminals (overvoltage category:
CAT I and II).
Maximum Noise between Channels
60 VACrms,
±
100 VDC.
Insulation Withstand Voltage
Between voltage input terminals and case: 60 Hz 1500 VACrms for one minute
Insulation Resistance
Between input terminal and ground: 10 M
Ω
(500 VDC) or more
Modules that can be Connected
707231 (WE7231 30-CH Fast Digital Thermometer Module)
Weight
Approx. 1.3 kg
External Dimensions
Approx. 123(W)
×
76(H)
×
305(D) mm (projections excluded)
