Turndown Ratio describes the difference between the highest and lowest possible span of measurement output which can be set for a sensing device with a rangeable output signal such as 4 to 20mA output which is HART enabled.
Turn-down ratio refers to rangeable output devices and indicates how much the output setting can be changed.
e.g. A 10:1 turndown ratio on a 1 bar gauge pressure transmitter would allow the following:
- Highest range setting: 0 to 1 bar absolute = 4 to 20mA
- Lowest range setting: 0 to 100 mbar absolute = 4 to 20mA
- DS201P High Range Flush Pressure Gauge, Switch and Sensor
- DS210 Combined Low Pressure Switch, Indicator and Sensor
- XMPi Process Plant Gauge and Absolute Pressure Transmitter
- DPS300 User Switchable Pressure Range, Volts or Current Output Low DP Sensor
Measurement Signal Related Terms
More pages related to measurement signal technical terms.