- 4 -
The Rheotherm Flow Controller is an addition to a standard Rheotherm Flow Meter. It uses a
calibrated flow rate measurement to control an adjustable valve to the desired setpoint. The valve
and sensor calibration will be sized to your specific application, with the desired set point, if
specified, near the center of the calibration range. The setpoint is adjustable with a 10:1 turndown
ratio or larger by request. It is recommended to keep the setpoint within 10% to 90% of the range.
Nonintrusive sensor
(TU or TUL)
1.3
PRECAUTIONS
!! CAUTION:
Throughout the manual this caution notation indicates
that failure to execute the accompanying instructions
may cause the instrument or external equipment to
malfunction.
!! WARNING:
A warning indicates that failure to execute the
accompanying instructions may cause permanent
damage to the instrument or external equipment.
1.
Use proper input power — All Flow Controllers use 24v DC Power
2.
Use reasonable care in handling the sensor. Disassemble valve carefully for
cleaning
TU or TUL — Twisting or bending can damage the sensor. The flow tubes are thin-
walled tubing. Do not rotate the electronics box or try to disassemble the sensor
body tube fittings (at each end of the shell).
3.
Check the sensor maximum temperature rating — Do not operate a sensor at or
subject it to a temperature above its specified limit.
