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Summary of Contents for Alpha Moisture Systems dewSMART DS1000
- Page 1 Model SADPmini Model DS1000 Dewpoint Meter Instruction Manual Alpha Moisture Systems Alpha House 96 City Road Bradford BD8 8ES England Tel: +44 1274 733100 Fax: +44 1274 733200 Email: mail@amsytems.co.uk Web: www.amsystems.co.uk...
- Page 3 Model DS1000 - ADHS System Installation, Commissioning and Operation Manual 1450 DS1000 – ADHS System User Man Issue 2 23/01/06...
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Page 4: Table Of Contents
Index General Specification..................1 Instrument ......................1 Sensor......................1 Sensor Holder....................1 System......................1 Safety Information .....................2 Warning......................2 Isolation......................2 Installation......................2 Installing the Instrument into a Panel ............2 Free Standing cabinet..................3 Instrument Wiring ..................3 Power Supply ....................3 Sensor, Alarm and Output Cable Connectors:-..........3 Sensor Cable ....................4 Alarm Cable ....................4 Analogue Output Cable..................4 Installing the Air/Gas Sampling System............4... -
Page 6: General Specification
1 General Specification Instrument Model DS1000 Cabinet Panel Mounting with IP65 Front Panel Material ABS/PC Flammability : IEC 707 FVO Panel Cut Out : 92 x 45 Display 4 digit bright LED Resolution Dewpoint 0.1°C (0.1°F) Alarms 2 changeover alarm relays, normally energised, with separately adjustable set points. -
Page 7: Safety Information
2 Safety Information Read the safety information below, before installation. 3 Warning Hazardous voltages may be present on the instrument terminals. The equipment must be installed by suitably qualified personnel and the instrument mounted in a position which provides protection, behind the panel, to at least IP20. 4 Isolation The power supply terminals and associated internal circuitry are isolated from all other parts of the equipment in accordance with EN61010-1:2001 for connection to a... -
Page 8: Free Standing Cabinet
Free Standing cabinet (If Applicable) Remove the 4 screws at the sides of the cabinet and remove the cover. Remove the plug-in connectors from the back of the instrument. Pass the instrument through the cut-out in the front of the cabinet chassis and slide the panel clamp, from inside the chassis, over the back of the instrument, ensuring that the narrow section is at the top. -
Page 9: Sensor Cable
clamp that is visible through the slot in the top of the connector. This forces the cage open and the cable can be inserted through the round hole. Remove the downward pressure on the spring clamp to clamp the cable. Sensor Cable Connect the sensor cable to the lower left 5 pin connector, ensuring that the correct colour coding is observed and that the cage is securely clamped onto the bootlace... -
Page 10: Piping Installation
response time to an unacceptable level. In general, a flow rate of between 2 and 3 litres/min at NTP will give the right balance. The sensor is a variable capacitor which is directly affected by changes in partial pressure of water vapour and these changes, which are proportional to the dew/frost point temperature, are displayed on the instrument indicator. -
Page 11: Component Index
Component index 1. Sample Isolation Valve - This is a recommended item as it allows access to the sample system without interrupting the main process line. 2. Sample Tube – This should be stainless steel for dry air or gas applications but copper or carbon steel can be used where wetter gases are to be measured. -
Page 12: Installing And Commissioning Sensor
NOTES a) The flashing digit of the display is the one that can be adjusted. b) Pressing the middle button moves the flashing digit along the display c) Pressing the right hand side button adjusts the digit value. Adjust the display until the required trip point for Alarm 1 is indicated. Press both the middle and right hand side buttons together. -
Page 13: Operation
through the inlet pipework to the sensor holder and exhausts through the sensor entry port of the sensor holder. Allow this purge to continue for about 15 to 20 minutes to remove any residual moisture from the sample pipework and components. Close the inlet isolation valve, install the sensor into the sensor holder and ensure that the 8 pin sensor cable connector is correctly positioned and the locking ring screwed down securely to effect a weatherproof seal. -
Page 14: Ds1000 - Adhs Electrical Connections
instrument/sensor range is requested. The only adjustment necessary would be the alarm set points in the case of the instrument. 10 DS1000 - ADHS Electrical Connections 11 Peak/Valley Display The maximum and minimum process variables measured since switch-on or last reset are continuously calculated within the instrument. -
Page 15: Failure Modes
12 Failure Modes Display Fault Action - - - - Over Range – input to DS1000 greater than Measure the mA in the Yellow wire using a “ “ 20mA DVM. 20.5mA = Sensor Open Circuit 21.0mA = Sensor Short Circuit “_ _ _ _ “... -
Page 16: Appendix A - Installing A Panel Mounted Weatherproof Enclosure
14 Appendix A - Installing a Panel Mounted Weatherproof Enclosure Machine the panel cut-out 139 ±0.5mm wide x 68.5 ±0.2mm high. Remove the retaining screw clips, from the sides of the cabinet and position the cabinet through the donor panel. Re-fit the retaining clips and screw the retaining screw into position to secure the instrument into the panel.
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