Zetechtics Jupiter 2 Torque Tool Control System

Description

The Jupiter 2 Torque Tool Control System is a subsea control system for torque tools in high integrity applications. The Jupiter 2 has one combined proportional pressure and flow function of 0–240 bar and 0–32 lpm, typically for torque tool control, and four bi-directional solenoid valve functions, each with externally mounted manual pressure and flow adjustment valves.

The NG6 pressure and flow control valve is driven by a 12 bit constant current drive, and the pressure control valve has a 250 bar transducer to monitor tool pressure. Each function has an internally mounted output pressure transducer, and the system has one external 700 bar pressure transducer. Torque is measured through a strain gauge input (0.375 mV/V sensitivity, 12 bit measurement resolution), and turns count through discrete digital inputs with hysteresis.

The Jupiter 2 runs on a 115 VAC supply (2 A, 240 W) and has an RS232/RS485 data link with galvanic isolation to 1500 VDC. It has four sensor inputs configurable as discrete digital inputs or as analogue inputs for 4–20 mA or 0–10 V sensors, provision for connection to a high flow valve pack (HFVP), two external water detectors and an internal water detector with two sense points.

The Jupiter 2 main body measures 245 × 325 × 187 mm, weighs 28.8 kg in air and 16.8 kg in seawater, and is rated to 3000 msw.

Technical Specification

Size

245 × 325 × 187 mm

Depth rating

3000 msw

Weight

28.8 kg in air / 16.8 kg in seawater

Pressure and flow control

1 × NG6 pressure & flow control

Proportional valve drive

Stable 12 bit constant current drive

Pressure control valve transducer

250 bar, monitors tool pressure

Bi-directional proportional solenoid

1 × combined proportional pressure & flow function, 0–240 bar, 0–32 lpm (typically for torque tool control); output pressure transducer on each function (internally mounted)

Bi-directional solenoid valves

4 × NG3 bi-directional solenoid valve functions, each with externally mounted manual pressure and flow adjustment valves (externally adjustable, fully shrouded meter and throttles)

External pressure transducers

1 × 700 bar pressure transducer

Supply voltage

115 V (115 VAC supply)

Supply current

2 A

Supply power

240 W

Data link

RS232/RS485 with galvanic isolation to 1500 VDC

External water detectors

2 ×

Torque measurement (torque tool #1)

Strain gauge, 0.375 mV/V sensitivity (12 bit measurement resolution)

Turns count (torque tool #1)

Discrete digital inputs with hysteresis, suitable for interfacing to most types of torque tool

Sensor inputs

4 × configurable as discrete digital inputs with user defined threshold voltage, or analogue inputs for 4–20 mA or 0–10 V sensors

High flow valve pack (HFVP)

Provision for connection: 1 × combined proportional pressure and flow function, 1 × water detector

Internal water detection

1 × internal water detector (2 × sense points)

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