Master Level Controls Co.
4255 White Bear Parkway, Suite 2400, Vadnais Heights, MN 55110
 
 
Phone 651-426-9085
800-MLC-8020
Fax 651-426-9354
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UL 508A
Industrial Control Panels


 
H Y D R O M A S T E R

DH Digital Hydromaster Controllers



DH2A-400-1

HYDROPNEUMATIC TANK CONTROL

The Digital Hydromaster is a controller which senses level, pressure and maintains a air balance of a hydropneumatic tank and controls for one or more pumps. The Digital Hydromaster consists of a Operator Interface Panel, a Programmable Logic Controller with digital and analog I/O, and a Pressure Transducer. The Hydromaster Operator Interface Panel has A 4" inch color touch display with 4 function keys. The Operator selects pre-programmed screens and inputs pressure start and add-air setpoints, time delays, alternation features, and alarm conditions. The Interface Panel has a 480 X 272 pixel display, size is 4.3 inches. One of the menu screens is the HYDRO TANK STATUS. The status screen displays pressure, plus a bar graph, pump and compressor status. Other menu screens allow the operator to select pressure setpoints or time delays.

The Programmable Logic Controller has 2 analog inputs and 2 analog outputs, 14 digital inputs and 10 outputs. The PLC can expand to 136 I/O if required. The analog 4-20ma input is from a Pressure Transducer with a range of 0-100 PSIG. Solid State Probe Modules detect pump stop and air limit levels from the R-B Probe Assembly. Pump and compressor hand-off-auto control switches are provided. Pump and compressor relays are provided and are rated 10 amp @ 120/230v. The R-B Probe assembly is provided for front mounting to the hydropneumatic tank. The Digital Hydromaster standard models are DT2A for 2 pump control.