Providing tailored solutions for measurement applications
Automation Products Group, Inc.

www.apgsensors.com
Tel.1/888/525-7300
sales@apgsensors.com

Application Examples

Providing Constant Hydraulic Pressure on Fluid Power Units/Skids
Market

Fluid Power/Hydraulics


A Fluid Power Unit system is a hydraulic power source that is used to drive rams and pistons in various industrial fabrication processes. The system consists of a structure, called a skid when portable, that includes a fluid power pump, a pressure transmitter, a liquid level control with optional temperature sensor, a flow switch or transmitter, a control valve or variable frequency drive, a controller, a reservoir tank, and interconnecting piping or hoses. These key components work as a system to maintain a constant hydraulic pressure as hydraulic power is used.

Automation Products Group, Inc.'s products are used in fluid power units to monitor the fluid power pump pressure, the reservoir tank level, and fluid flows from tank to discharge.

The sensor signal transmits to the system controller. Typically the controller is a Programmable Logic Controller (PLC) that controls the pumps in the system by modulating the pump output to maintain a constant hydraulic pressure.

Automation Products Group, Inc. incorporates stainless steel sensors in the product design making them "One Wetted" and able to stand up to corrosive hydraulic fluids.

PT-L1
Two-Wire Pressure Transmitter

Low cost
Accuracy (linearity, hysteresis, repeatability): ±0.25% F.S. (B.F.S.L.)
4-20 mA output
High overpressure capability
Hybrid compensation circuit
Zero and span adjustments


Applicable Products
PG-7, PG-5000, PT-L9, PT-L1, PT-400, LF, FLE and TD3120
PG-7
PG-5000
Digital Pressure Gauges

Self-powered by standard 9 V battery
Large, full 4 digit display with 0.5 in. characters
Keypad operated microprocessor circuit has "TARE" (auto zero), peak hold and an alarm as standard functions (PG-7)
Ranges vacuum to 10,000 psi
Direct reading to 9,999 psi
±0.25% of full-scale accuracy
A 16 minute auto off circuit
On/off switch with optional auto-off circuit
Peak-hold and analog outputs available (PG-5000)

More PG-7 Benefits

Weather resistant
Zero adjust via up-down keys


PT-L9
Millivolt Output Pressure Transducer

Low cost
Accuracy (linearity, hysteresis, repeatability): ±0.25% F.S. (B.F.S.L.)
Hybrid compensation network for reliability
Standardized output of 10 mV/V (other outputs available)
Rugged all-stainless welded construction
Miniature sensors in various package configurations (not shown)



FL
Magnetic Float Level Sensors

Custom manufactured to user specifications
Switch points are field adjustable
Stem position adjustable (slide flange)
Reliable
Wide choice of materials
Long switch life
Durable floats
Heavy duty model available for shock resistant construction in the metal floats (rugged series)
Economy model available for light duty applications

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6772