Master Level Controls Co.
19900 County Road 81, Maple Grove, MN 55311
 
 
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-900-1

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 OCS Operator Control Display, with a Programmable Logic Controller with digital and analog I/O, and a Pressure Transducer. The Hydromaster OCS digital display panel has a 3.5 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 OCS Display Panel has a 320 x 240 pixel color touch display. 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, 24 digital inputs and 16 outputs. 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.