Yokogawa DR240 - Manual (Page 259)

14-14 IM DR232-01E
14.3 Specifications of mA-input Module
Style Number: S5
Model Code, Number of Input Channels, Terminal Configuration and Shortest
Measurement Interval
Model Code Number of Channels Terminal Configuration Shortest Measurement Interval
DU300-11 10 Screw 0.5 s
DU300-12 10 Clamp 0.5 s
Method of Input
Non-balanced floating input with isolation between channels (separated channels)
Resolution of A/D Conversion
±20000
Integral Time of A/D Conversion
Manual or automatic selection between 20 ms (50 Hz), 16.7 ms (60 Hz) and 100 ms (10 Hz)
(Except, auto switch does not function on the subunit (DS400/DS600) of a DC power supply
model. Selecting "AUTO" will set the A/D integration time to 20 ms (50 Hz).)
Shortest Measurement Interval and Cutoff Frequency
When the lowpass filter is turned off:
Cutoff frequency: 50/60 Hz 10 Hz
Shortest measurement interval: 0.5 s 4 s
When the lowpass filter is turned on:
Cutoff frequency: 50/60 Hz 10 Hz
Shortest measurement interval: 3 s 12 s
Normal Operating Temperature/Humidity Range
-10˚ to 60˚C
20 to 80% RH for an ambient temperature range of -10˚ to 50˚C; 10 to 50% RH for 40˚ to 50˚C; 5
to 30% RH for 50˚ to 60˚C (non-condensing)
Maximum Input Voltage
5 V DC
Maximum Normal-mode Noise Current
24 mA (peak value, including 50- and 60-Hz signal components)
Equivalent voltage of 2.4 V
Normal Mode Rejection Ratio (Equivalent Voltage)
40 dB minimum (50/60 Hz
±0.1%)
Maximum Common Mode Noise Voltage
250 V ACrms (50/60 Hz)
Common Mode Rejection Ratio (Equivalent Voltage)
120 dB minimum (50/60 Hz
±0.1%)
Maximum Noise Across Channels
150 V ACrms (50/60 Hz)
Measuring Range/Accuracy
As described below, under the following operating conditions:
Ambient temperature: 23
±2°C; ambient humidity: 55 ±10% RH; power supply voltage: 90 to 250
VAC (AC power supply)/10 to 32 VDC (the subunit of a DC power supply model only); power
supply frequency: 50/60Hz within
±1% (AC power supply); warm-up time 30 minutes or more;
vibrations and others not affecting instrument operation.
Measuring Range Measuring Accuracy Maximum Resolution
-20.000 to 20.000 mA ±(0.25% of rdg. + 5 digits) 1 µA