Yokogawa 415 Steam and Gas - Manual (Page 13)

4-20mA Inputs
Inputs: Flow (2), pressure & temperature.
Input Impedance: 250 ohms.
Measurement Ranges: Pressure: 0kPa (abs) (0 psia) to 100,000 kPa
(10,000 psia).
Temp:-273°C (-459.4°F) to 1200°C (2192°F).
Accuracy: 0.05%
Circuit: The 250 ohm resistors are connected to a
common signal ground (current sinking).
Span (Flow): 999,999.
RTD Input (Model 415R)
Temperature
Measurement Range:
-100°C (-148°F) to 200°C (392°F),
Note: a wider temperature range can be
handled via a 4-20mA input.
Accuracy: 0.1°C
RTD Type: Platinum PT100.
Linearity: The non-linearity of the RTD is internally
compensated for.
Pressure Input
Type: Absolute or Gauge.
Span: The absolute or gauge pressure at both 4mA
and 20mA is programmable.
Atmospheric: If a gauge pressure sensor is used the
atmospheric pressure can be programmed.
4-20mA Output
Function: The flowrate selected as the Default display
is output on the 4-20mA output.
Resolution: 10 bits.
Accuracy: Better than 0.1%.
Maximum Load: 500 ohms internally powered.
950 ohms from 24 VDC.
Isolation: Output is isolated.
Specification 11