KROHNE OPTIMASS with MFC 300 EN - Manual (Page 135)

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• The above data are provided as a rough guide only.
• Driver = Black and Grey.
• Sensor A = White and Yellow. Sensor B = Green and Purple.
• RTD = Red and Blue (530...550 ) at ambient temperature
• Strain Gauge = 420...560
• Resistance values outside these values could indicate a circuit failure. Meter may be in
start-up or have measuring errors.
• All circuit should be isolated from ground (meter case) and each other: >20M . If circuits
are shorting to ground, meter may be in start-up.
Caution:
If the measuring tube/s fail, process fluid can leak into the outer casing. If this happens,
depressurise the meter and remove it from the process line as soon as it safe to do so.
OPTIMASS 2000
Resistance (Ohm)
Driver Sensor A/B
Size 100 240 78
Size 150 240 64
Size 250 168 78