Alpha Moisture Systems DS5000 Instruction Manual Download | Manualshive

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Document No:1188

Issue 2

Date 14/11/03

Model DS5000 Dewpoint Monitor

Instruction Manual

Alpha Moisture Systems

Alpha House

96 City Road

Bradford

BD8 8ES

England

Tel: 01274 733100

Fax: 01274 733200

Email:

[email protected]

Web:

WWW.amsytems.co.uk

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Summary of Contents for DS5000

Page 1: ...e 2 Date 14 11 03 Model DS5000 Dewpoint Monitor Instruction Manual Alpha Moisture Systems Alpha House 96 City Road Bradford BD8 8ES England Tel 01274 733100 Fax 01274 733200 Email info amsystems co uk Web WWW amsytems co uk ...

Page 2: ...1188 Instruction Man DS5000 doc Page ii Instruction Manual for the DS5000 Dewpoint Monitor ...

Page 3: ...ic Component Index 5 5 Installing and Commissioning the DT45 Sensor 5 6 Default Instrument Configuration 6 7 Resetting the DS5000 6 8 Programming the DS5000 7 8 1 Principle of Entering Numerical Data 7 9 Configuring the DS5000 7 9 1 unit 7 9 2 AL 1 2 8 9 3 bELL 8 9 4 PrES 8 9 5 4 20 9 9 6 VoLt 9 9 7 ACAL 10 9 8 oFSt 10 9 9 CodE 11 9 10 InFo 11 9 10 1InFo rmation Details 12 10 Normal Operation of t...

Page 4: ...hin the transmitter and is readable from the DS5000 display The DS5000 can perform auto calibration and implement offsets on the attached transmitter All the values are stored on the transmitter retaining the interchangeability of the transmitters The DS5000 has two full range alarms that can be set as rising or falling edge triggered These alarms are visual LED audible and activate changeover rel...

Page 5: ...nd if an effective IP65 weatherproof seal is required the minimum recommended panel thickness is 1 6mm Pass the instrument case through the cut out in the donor panel and attach the two retaining screws to the studs on either side of the case Tighten the retaining screws onto the back of the donor panel until the instrument is clamped securely in position The screws must be tightened sufficiently ...

Page 6: ...ed site of the sensor 4 Installing the Air Gas Sampling System The piping installation schematic diagram see section 4 1 shows all components which could be used in a dry gas measurement application although not all the items shown will be required for every installation Care should be taken to ensure that the sample presented to the measuring sensor is not contaminated with any component that wil...

Page 7: ...alibration It is for these reasons that we recommend that the sensor be installed in a bypass fast loop or total loss sample system where the sensor is accessible without interrupting the main process flow line 4 1 Piping installation Schematic 1 2 3 4A 4B 5 6 7 8 9 10 11 P Main Process Line Notes a The sample point should be on the upper surface of the horizontal pipe or from a vertical section o...

Page 8: ...m the system If measurements are to be taken at full line pressure and the sample is to be returned to a part of the main line or a vent which is at a pressure higher than atmospheric and the input to that line needs a controlled pressure then both 4A and 4B will be required 5 Sample Pressure Gauge This is not a critical part of the moisture measurement but may be required if Dew Frost point measu...

Page 9: ...he sample loop This completes the installation and commissioning but on initial start up it could take several hours for the system to reach equilibrium The instrument will now indicate the dewpoint of the air gas surrounding the sensor at sensor pressure and the analogue outputs will be giving voltage and mA signals proportional to the indicated dewpoint 6 Default Instrument Configuration The sta...

Page 10: ...ave the numerical part of this routine without saving it is to allow the 60 second timeout to occur 9 Configuring the DS5000 To activate the Systems Menu press the key sequence 12 This will display the SYS message on the LCD as portrayed in the System Menu Map see Appendix A Pressing the key again enters the system menu map at the unit screen on the base level There are 11 base level options descr...

Page 11: ...l without saving any changes Once the key is pressed SET1 or SET 2 will be displayed The user can now escape using the S key or continue by pressing the key The current or default trigger point value is displayed Use the S T 12 keys to enter the required trigger point Pressing the key confirms the alarm settings and returns to the AL 1 or AL 2 display Note The only way to leave the numerical part ...

Page 12: ...e The LCD now displays either Hi or Lo Use the 12 key to select the high or low range limit whichever is required and then press the key Note If the key is pressed instead of the key the DS5000 will return to the 4 20 screen on the base level The LCD will now display the current High or Low range value Use the S T 12 keys to enter the new value Pressing the key confirms and saves the new range set...

Page 13: ...ress the key to enter the subroutine If the DS5000 is set up to require a security code the LCD now displays codE for 2 seconds followed by 0000 Use the S T 12 keys to enter the current ACAL security code If no code is required or the correct code is entered the LCD changes to rEF followed 2 seconds later by 0000 Use the S T 12 keys to enter the moisture level at which the Auto Calibration is bein...

Page 14: ...d then press the key Note If the key is pressed instead of the key the DS5000 will return to the CodE screen on the base level The LCD displays OLd for 2 seconds before displaying 0000 The user is then required to enter the current security password Use the S T 12 keys to enter the password Pressing the key triggers the DS5000 to compare the entered code with the stored code If the two codes match...

Page 15: ... 20 0 Ü Voltage Lo range 80 0 v Voltage Hi range 20 0 ÜY 10 Normal Operation of the DS5000 In normal operation the DS5000 will display the current value as received via RS485 from the connected DT45 transmitter The value is updated once per second and is displayed in the currently selected engineering units which is indicated by the LED If a pressure has been entered into the DS5000 the LED will a...

Page 16: ... entered in the Set up menu It is therefore critical that the correct pressures are entered in the Set up menu in order that the displayed values are correct 11 1 Examples If a sensor is installed at atmospheric pressure and the instrument is required to display line pressure dewpoint at 8 Barg LP Line Pressure should be entered as 8 0 and SP Sensor Pressure should be entered as 0 0 If a sensor is...

Page 17: ... display will read oPEn the voltage output will drive to full scale the current output will drive to 23 5mA and both alarms relays will trip If communication with the transmitter is lost for a minimum of 20 seconds the display will read conS the voltage output will drive to full scale the current output will drive to 23mA and both alarms relays will trip If the sensor is wetted beyond its upper li...

Page 18: ...cter seven segment LED and the two alarm LED s Pressure Correction Software pressure correction implemented Power Supplies Universal 90 250VAC 50 60hz or 12VDC Alarms Two single pole changeover contacts NO C NC rated at 10A at 240VAC Alarm trip at set point with 0 1ºC or equivalent hysteresis to eliminate relay chatter Audible Beeper Continuous sound when either Alarm 1 or Alarm 2 trip Silenced wh...

Page 19: ...ter 0000 unit C F b P g L AL 1 Hi Lo Set1 0000 AL 2 Hi Lo Set2 0000 bELL On OFF PrES PSIg bArg SI gcS LP SP 0000 0000 Lo 4 20 VoLt ACAL CodE 0000 oFSt CodE 0000 crnt 0000 nu 0000 donE Code SYS ACAL oFSt OLd 0000 nu 0000 donE InFo v0 18 Sn12 80 3456 20 0 0 0 5 0 20 0 25 0 C Hi Etcetera Exit Menu Incorrect Code 0000 Hi 0000 Lo 0000 Hi 0000 CodE 0000 CAL rEF SET donE ...

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