Modulating level controls - Filter

Other applications
This brochure deals with the water level controls
normally fitted to shell type steam boilers. They can
also be used on water tube boilers and anywhere a
water level has to be detected.
The following are just a few examples of the many level
control duties possible.
Control valve
Make-up water
LC2200 controller
LP20 probe / PA20 amplifier
Valve modulates to
maintain water level
within this band
Low level alarm
Boiler feedtank make-up with modulating control,
and low level alarm
Valve modulates to
maintain water level
within this band
How to specify
Proportional level controller for electrically actuated
valve with alarm output, three stage wave filter and out
of range alarm. Complete with capacitance probe and
preamplifier.
Optional: Transmitter and
Remote display unit
Control valve
Make-up water
Flow to process
LP20 probe /
PA20 amplifier
High level alarm
LC2200 controller
Valve modulates to
maintain water level
within this band
Process water tank with modulating fill control,
and high level alarm
LP20 probe / PA20 amplifier
Some of the products shown may not be available in certain markets.
LC2300 controller
To drain
Pneumatic control valve
Drainage control of a large process pressure vessel,
modulating control.
How to order
1 - Spirax Sarco modulating level control system
comprising:
LP20 probe 600 mm long.
PA20 Preamplifier
LC2200 Controller
Optional: LT2010 Transmitter
DS1000 Digital display unit
Spirax-Sarco Limited, Charlton House,
Cheltenham, Gloucestershire, GL53 8ER UK.
Tel: +44 (0)1242 521361 Fax: +44 (0)1242 573342
E-mail: Enquiries@SpiraxSarco.com
Internet: www.SpiraxSarco.com
© Copyright 2001 Spirax Sarco is a registered trademark of Spirax-Sarco Limited
SB-P402-02 AB Issue 3
LCM