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Summary of Contents for Zetechtics Jupiter
- Page 1 SUBSEA DISPLAY SYSTEM MANUAL INSTALLATION, OPERATION & MAINTENANCE Jupiter SUBSEA CONTROL SYSTEMS Tel: +44 (0) 1653 602020 Fax: +44 (0) 1653 691712 Email: sales@zetechtics.com Website: www.zetechtics.com Zetechtics Ltd, Malton YO17 6TA England...
- Page 2 All information, documents, data and software supplied by us to you or you to us is confidential and supplied in confidence whether or not a contract comes into existence between us. Zetechtics standard Confidentiality Agreement applies. Jupiter is a Trademark of Zetechtics Ltd.
- Page 3 NOTE: Earlier systems were fitted with 1A fuses. These may be replaced with 3A fuses to or longer shelf / standby life. permit the use of international charger unit, Zetechtics part number: 023-14-02-005. Power Supply/Battery Life: 5 Days Average with continuous display, 5 Months Standby.
- Page 4 Subsea Display System (Part No. 023-14-11-020). Connection to a USB port is Activate the Jupiter Subsea Display by fitting the RS232 Interface Cable or 5 way Power possible via a suitable USB to RS232 convertor. Contact Zetechtics, for further information.
- Page 5 The Jupiter System is highly complex and should only be operated & maintained by suitable qualified & experienced personnel. In particular it is recommended that personnel undergo training by Zetechtics on all aspects of this system. Failure to do so may jeopardise warranty and other service agreements.
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Page 6: Table Of Contents
ABLE OF ONTENTS ..................1 NTRODUCTION ........................1 RIEF ESCRIPTION ........................1 QUIPMENT UPPLIED ........................ 2 OUNTING THE YSTEM .................. 3 ETTING TARTED ..........................3 ONNECTIONS ......................3 YSTEM ONFIGURATION RS232 Serial Interface / “Command Console Interface” ............... 3 ....................3 YSTEM OWER PERATION... - Page 7 ........................22 ISPLAY ONTROLS Zero Display Reed Switches (4 Digit Display only) ..............22 Scale Swap Reed Switch (4 Digit Display only) ................22 ......... 23 IGIT TRAIN AUGE NPUT PERATIONAL ODES ......................... 23 ETTINGS ..........................23 ALIBRATION Dead Band Trim Function ......................24 ........................
- Page 8 ................ 44 YSTEM PECIFICATION ............45 ETECHTICS ONTACT NFORMATION ........................45 ECHNICAL UPPORT ............................ 45 GENTS...
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Page 9: Introduction
RIEF ESCRIPTION All Jupiter Subsea Display Systems are rated to 3,000m depth in sea water, and can be interfaced to a Jupiter Subsea Control System or data-link. They are stand-alone, battery powered, ultra low power consumption with selectable dormant state. Designed for Strain Gauge input and/or Digital Sensor input and display either individually or simultaneously. -
Page 10: Mounting The System
Note: Adapter holes are provided on the Remote Actuator to allow for mounting of adapter levers (not supplied by Zetechtics). If the front glass of the 2 digit display is scratched or otherwise damaged, the Unit should be returned to Zetechtics for replacement/pressure testing. -
Page 11: Getting Started
The unit should be connected to the sensor(s) via Conn 2, as shown in the table above. Ensure that the display face is exposed to daylight or artificial light. Activate the Jupiter Subsea Display by fitting the RS232 Interface Cable or 5 way Power Enable connector to Conn 1. -
Page 12: Low Battery Indication
EQUENCE Ensure that the display face is exposed to daylight or artificial light. Activate the Jupiter Subsea Display by fitting the RS232 Interface Cable or 5 way Power Enable connector supplied to Conn 1. On power up the display will:-... -
Page 13: Operational Option Links A, B, C, D & E
Note: At lower brightness level settings, inconsistencies in display segment brightness may become apparent due to tolerances in their design and manufacture. If your application requires the increased battery life offered by lower display brightness, please contact Zetechtics for a specially selected display assembly to your requirements. -
Page 14: And 4 Digit Quadrature Counter Operational Modes
IGIT UADRATURE OUNTER PERATIONAL ODES The modes of operation describe the behaviour of the display when the count is below zero or above the maximum number the 2 or 4 digit display is able to convey i.e. 99 and 9999 respectively. -
Page 15: U N -Scaled Display
CALED ISPLAY It is possible to configure the display to display an un-scaled count (actual number of counts before the scale factor is applied). It is possible to monitor both the scaled and un-scaled counts simultaneously via the RS232 diagnostic display, and in the case of the 4 digit display it is possible to swap the display between the scaled and un-scaled values with the display switches. -
Page 16: Standard Counting Modes
TANDARD ODES Counting Modes The following modes configure standard operational configurations which should suit most user’s needs, but can each be modified once set by adjusting any individual option. Single Input Continuous Display Available with 2 or 4 digit display. seti1c: This command sets the Counter to Input 1, Unipolar mode, continuous display, with overflow indication disabled. -
Page 17: Uadrature Nput Ecoding
UADRATURE NPUT ECODING Examples of the change in inputs versus the change in the count are shown in the table and timing diagram below. Quadrature Input Decoding Table Event Input Input Count Event Description Input 1 has gone to the off state ↓... -
Page 18: Calibration Methods
ALIBRATION ROCEDURE In order to get the correct display for the intended application it is necessary to calibrate the system. Prior to calibration the system must be configured to the required counting mode. See the sections on System Configuration on page 3 and Standard Modes on page 8. The system provides both numerator and denominator scale factors which allow a fractional scale factor such as 2/3 to be derived rather than losing accuracy from the truncated recurring decimal 0.6666. -
Page 19: Method 1 - Calculating Calibration Scale Factors
Method 1 – Calculating calibration scale factors Calibrating a system with a known number of sensor targets and gearbox ratio: 1. Determine if 1 (Single input) or 2 (Quadrature) sensors will be used. 2. Determine the display precision required (number of decimal places). 3. - Page 20 e.g. [2] The following example is chosen to illustrate all aspects of this procedure. 1. QUADRATURE input 2. 1 decimal place 3. A = 3 targets per rotation 4. Gearbox ratio 4.7 to 2 B = 4.7 C = 2 5.
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Page 21: Method 2 - Determining Calibration Scale Factors By Experiment
Method 2 – Determining calibration scale factors by experiment Calibrating a system with an unknown number of sensor targets or gearbox ratio: 1. Verify that the mechanism and sensors (or sensor if only 1 input is being used, and it is not necessary to use quadrature) are operating correctly. - Page 22 e.g.[3] The following is an example of calibrating a torque tool by experiment 1. Check the mechanism operates 2. QUADRATURE input 3. 1 decimal place 4. Set scale factor to 1 5. Zero the display 6. Operate the tool for exactly 10 turns 7.
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Page 23: Calibration Check Procedure
Calibration Check Procedure Checking the calibration is correct: 1. Verify that the mechanism and sensors (or sensor if only 1 input is being used, and it is not necessary to use quadrature) are operating correctly. 2. Check the display is reading 0. Zero the display if not. 3. -
Page 24: Scaling Options
Scaling Options In normal operation the Numerator and the Denominator dictate the ratio of the displayed count for a given number of inputs transitions of the inputs, however a ‘raw’ un-scaled count equivalent to a numerator of +0001 and a denominator of 0001 can be displayed instead, by operating the scale reed switch as described previously. -
Page 25: Display Modes
ISPLAY MODES Operational Display Examples Normal Counter Display with Input Activity When the denominator is greater than the numerator, or a Quadrature input is deployed, the display count may not always change with every state change on the inputs. In order to provide the user with an indication of ‘activity’... -
Page 26: Normal Counter Display Showing Absolute Zero
Normal Counter Display showing Absolute Zero In order to allow the user to precisely determine that the scaled count is exactly zero, rather than a fractional value which displays as a zero in the current counting mode (Rounded or Truncated), both the 4 and 2 digit versions have means to indicate that the count is exactly zero. -
Page 27: Digit Counter Bipolar Overflow Display
4 Digit Counter Bipolar Overflow Display In bipolar modes, the displayed count is able to reach a count of 1 more than +9999 or 1 less than -9999. At first sight the result may seem obvious. Clearly it is 10,000, but what is the sign? 1 count more than 10,000 is actually –9999, and 1 count less than 10,000 is actually +9999! This ‘special number’... - Page 28 Example 2: 4 digit display, configured to show 2 decimal places. Scaled Value: +0.2568 Displayed Value: +_0.25 ( _ indicates blank display position due to leading zero suppression). Truncated mode is particularly useful when implementing a turns counter, for example, where it is only desirable to increment or decrement the display when the count corresponds to complete revolutions (or tenths / hundredths / thousandths there of).
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Page 29: Examples Of The Display With Various Options
Examples of the display with various options The following examples assume the following: The numerator has been set to +000.1 through the ‘pnum’ command. The denominator has been set to 0003 though the ‘pden’ command. The Quadrature input has been deployed. The system has a 4 digit display. -
Page 30: Display Controls
ISPLAY ONTROLS Each of these controls can be enabled or disabled using the console interface or the option links as described later. Zero Display Reed Switches (4 Digit Display only) The Display may be zeroed by using the Reed Switch built in to the 4 Digit Display, or by using the Remote Reed Switch and Cable, supplied separately as an option. -
Page 31: Digit Strain Gauge Input Operational Modes
IGIT TRAIN AUGE NPUT PERATIONAL ODES ETTINGS The system has three possible gain settings. The setting should be selected based on the maximum expected output (sensitivity) from the transducer. Links on Strain gauge Interface Board 023-14-07-003 (2 from Cylindrical Housing End Cap) Transducer Sensitivity (mV/V) Link Fit the link on the strain gauge conditioning PCB according to the above table. -
Page 32: Calibration Dead Band Trim Function
Dead Band Trim Function This function enables the system to be adjusted so that the display reads zero, during operations to either side of zero, where for instance an applied torque has no effect. Note: Setting the “dead band” must be carried out when the Subsea Display System “User FSD”... -
Page 33: Display Controls
ISPLAY ONTROLS Zero Display Reed Switches It is possible to zero the display reading of the Subsea Display System (this function may be disabled at the RS232 Command Console Interface). Positioning a magnet in close proximity to the right-hand side of the display (or by actuating the right-hand lever on the Remote Actuator Assembly): Switch Actuator Description... -
Page 34: Dual 4 Digit Display Operational Modes
IGIT ISPLAY PERATIONAL ODES ESCRIPTION The Dual 4 Digit Subsea Display System is capable of operating as both a quadrature counter display and a display for a strain gauge derived input such as torque,. The system displays turns and torque simultaneously without the need for any re-configuration or switching of displays. The default factory set condition is that the strain gauge input (torque) is displayed at the top and the count display is at the bottom 4 digit display. -
Page 35: Command Console Interface
OMMAND ONSOLE NTERFACE The Command Console interface provides a means to set all system configuration options, including modes of operation and counter scaling. It is also possible to diagnose some system operation issues. RS232 Console Display An example of the console display is shown below: Console Operation Procedure In normal operation the Diagnostics &... -
Page 36: Rs232 D
3. When the connection is configured, Hyper Terminal should open the RS232 serial communications port automatically. The current display value will be shown on the Command Console terminal, eg 000000. The display must be active, i.e. there is enough light falling on the display if the light sensor is enabled. 4. -
Page 37: Command Summary - General Use
RS232 C ONSOLE OMMANDS Command Summary – General Use Command Description Password hello Starts the RS232 Diagnostics & Command Console letmein User password setrs232 Sets the Serial Interface to RS232 {3} Requires User Password setrs485 Sets the Serial Interface to RS485 Requires User Password baud2400 Set the Baud Rate to 2400 {3}... -
Page 38: Command Summary - Quadrature Counter
Command Summary – Counter Command Description Password bipolar Count +/- Around Zero (Bipolar Mode) Requires User Password deepsleepdisable Disable Deep Sleep mode Requires User Password deepsleepenable Enable Deep Sleep mode Requires User Password disable232zero Disables RS232 Data Loopback Zero Requires User Password disableabs0 Disable the Display of Absolute Zero (TDC) {1} Requires User Password... - Page 39 setiqbc Quadrature Bipolar Continuous Requires User Password setiqbo Quadrature Bipolar Overflow Requires User Password setiqc Quadrature Input Continuous (Unipolar) Requires User Password setround Rounding On Requires User Password setsas Set 4 digit analogue system on display 1 {4} Requires User or Supervisor Password settrunc Rounding Off (Truncated)
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Page 40: Command Summary - Strain Gauge Input
Command Summary – Strain Gauge Input Command Description Password excite Keep the bridge on Requires User Password Program full scale Requires User Password ptare Manual tare value input, eg. ptare+3456 or ptare-3456 Requires User Password pzero Program the user zero set point Requires User Password setlbft Set the scaling factor to 1bs.Ft... -
Page 41: Command Description
Command Description All the following commands should be followed by carriage return on the keyboard. hello Starts the RS232 Diagnostics & Command Console: letmein User password. baud2400 Changes the baud rate of the serial port to 2400 bits per second. No change occurs until there is a power cycle on the system, or the “powercycle”... - Page 42 disableoverflow Disables the overflow indication. disableunscaled If the ‘Scale’ reed switch is enabled by the hardware link ‘link C’ or by software, issuing this command will prevent Scale Swapping function from affecting the count. disablezero If the ‘Zero’ reed switch is enabled by the hardware link ‘link B’ or by software, issuing this command will prevent the zero function from affecting the count.
- Page 43 pden (Program the DENominator) The denominator is entered as a four digit unsigned integer with leading zeroes between 0001 & 9999. Note that when the denominator is changed, the accumulators are zeroed unless the supervisor password has been issued. pfnumph xxxx Program the Flow Numerator to 1 per Hour.
- Page 44 powercycle Issuing this command forces the processor to reset as if it had been powered down and up again Note that while the system is executing a power cycle the accumulators will be reset to zero and changes to the inputs will not be recognized and counts will be lost. ptare Manual tare value input pzero...
- Page 45 seti2c (SET Input to 2 Continuous) This command is essentially a short cut to 1 of 5 of the most obvious configurations for the deployment of the system. The seti2c command: Sets the input to Input 2 (non quadrature). Sets Unipolar Mode. Disables Overflow Indication.
- Page 46 settrunc Sets the display truncation on, and thereby defeats the rounding of the displayed value. settvs Set TVS mode tare Tare the current value unipolar Sets the display value to Unipolar mode where decreasing the count though zero results in a large (full scale (+9999 on the four digit display or 99 on the two digit display) value that decreases in magnitude.
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Page 47: Power
The battery installed is a high capacity Ni-MH ‘D-Cell’. If this fails it can be replaced with a spare from Zetechtics Ltd, or in an emergency, an alkaline primary D-Cell such as a Duracell® or similar, see Replacing the Battery. -
Page 48: Maintenance
4. It is not usually necessary to remove the 4 digit or dual 4 digit display from the cylindrical housing at all and this is discouraged by Zetechtics, as unnecessary damage may result. The 4 digit and dual 4 digit display disconnects via sprung contact pins as the internal support tube is removed from within the cylindrical housing. -
Page 49: Replacing The Battery
ATTERY The battery installed is a high capacity Ni-MH ‘D-Cell’. If this fails it can be replaced with a spare from Zetechtics Ltd, or in an emergency, an alkaline primary D-Cell such as a Duracell® or similar. Open the Subsea Display System (see Opening the Subsea Display). -
Page 50: Subconn® Connectors
AINTENANCE TORAGE The Subsea Display System should be rinsed with clean fresh water after use and dried thoroughly before being stored in a suitable box and secured. Subconn® Connectors Maintaining the quality and performance of the connectors in the Subsea Display is integral to the overall system operation. -
Page 51: Hardware Options
4 Digit Jupiter Subsea Display - NAMUR 023-14-52-141 Dual 4 Digit Jupiter Subsea Display 023-14-52-142 Dual 4 Digit Jupiter Subsea Display - NAMUR Sensor Connection Note: In order to use NAMUR type sensors, the system must be ordered correctly wired for... - Page 52 1 x D Cell Type 5 Days Average Display on Continuously, 5 Months Standby. This depends on the sensor type in use. Please check with Zetechtics Power Supply/Battery Life: for a specific application. Active sensors running off the +5V or +10V...
- Page 53 Address: mailto:support@zetechtics.com Zetechtics email Technical Support is available 24 hours a day 7 days a week. Between midnight and 6am urgent support requests should be made to the technical support telephone number given above. Responses to simple email questions, or email acknowledgement / telephone call back for more complex support requests is typically within 30 minutes.