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Summary of Contents for dewSMART ADSH

Page 1: ...IPhamoisture Ui SYSTEMS mo_deL S 1O_O_OID_T2_0___deWDoint meter instruction manual alphahouse 96 city road bradfordBO8 8ES england mp oc www to ac com 101 Derbv St 203 Hingham MA02043 USA Tel 781 7408778 Fax 781 7408779 ...

Page 2: ... over specified range Maximum Load 1K active V supply 2 20 KQ passive 90 to 250V AC 50 60Hz DT20 Stainless Steel with IP65 weatherproof seals 80 20 C DP OR llO 20 C DP Dewpoint 2 C Refer to calibration certificate for further information Calibration traceable to National International Standards 50 barg maximum standard version 4 pin connector IP65 when mated 3 wire shielded maximum cable length 10...

Page 3: ...solated from all other parts of the equipment in accordance with EN61010 1 for connection to a category II supply pollution degree 2 Function isolation 500V max is provided between input and output circuits Any terminals or wiring connected to the input or output which are accessible in normal operation must only be connected to signals complying with the requirements for Safety Extra Low Voltage ...

Page 4: ...ument 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 Ensure that the connector sockets at the back of the instrument are correctly located in the cut outs provided Enter a No 2 pozidriver through the 2 round holes at the back of the chassis a...

Page 5: ...ove 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 ferrules on the cable provided Root the sensor cable to the intended site of the sensor NOTE Do not install the sensor at this time Wait until the commissi...

Page 6: ...brasion to the sensor surface without being so low as to extend the system response time to an unacceptable level In general a flow rate of between 2 and 3 litres min at NTP will give the light balance 0 J l CJ I 0 D I I n 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 temp...

Page 7: ...ing the middle button moves the flashing digit along the display Pressing the right hand side button adjusts the digit value 3 Adjust the display until the required trip point for Alarm 1 is indicated 4 Press both the middle and right hand side buttons together This sets the trip point for Alarm 1 into the instrument memory The display will indicate SEt 2 5 Press the middle button and the display ...

Page 8: ... OK press the middle and right hand side buttons together and the display will indicate SEt2 Press the middle button the display will indicate Alarm 2 set point If this is OK press the middle and right hand side buttons together and the display will indicate SEt1 Press the left hand side and middle buttons together to return to the dewpoint display 10 If the alarm set points have to be altered at ...

Page 9: ... ensure that the sensor cable connector is correctly positioned that the sealing cup is in place and the retaining screw is screwed down securely to effect a weatherproof seal Open the inlet valve slowly again and by opening all valves after the sensor holder allow a low pressure purge through the whole sample system Note If a closed by pass loop is installed this section of the procedure is not p...

Page 10: ...conesponding instrument sensor range is requested The only adjustment necessary would be the alarm set points in the case of the instrument While the sensor should give several years operation it is advisable to confirm the calibration from time to time to ensure accurate operation of the system The sensor is equipped with an Autocal feature which allows adjustment of the calibration span To opera...

Page 11: ...l lJ L LJ l l J l lJ J l L L Retaining Ring PCB DOC DSJOOOIDT20 IJ J J Plug 0 Ring Sensor Body Wiring Sensor Plug Assembly Sensor Body Autocal Potentiometer View Inside Sensor r Page 11 Mode Selection Switch ...

Page 12: ...0mA Passive DOC D81O00 ono 12 1 1 1 L I Red Yellow Blue u 1 L J 1 I L J 1 L J LJ Alarm 2 u L I LJ u Alarm 1 NO 5 w u u u u LJ A 0 0 L 0 0 5 Conm10n NC 2 3 4 Power Supply 90 2S0V AC SO 60Hz Max Power 6VA Page 12 2 3 4 D E 00 F G ...

Page 13: ... 00000968 0127 26 15 4323 568 82 98 144 00001459 0192 24 11 5277 694 34 96 141 00002178 0287 22 8 6422 845 0IJ 9 IJ7 000031 4 O42 20 4 7790 tO2 0n 0 2 134 00004 9 0622 18 0 9 21 1239 61 DO 000068 9 090 i 16 3 1 135 149 o 7 126 J OlKJ9924 1305 14 7 1 365 17 6 j 86 123 00014205 1869 12 10 1 636 2152 63 84 119 0002018 2655 10 14 1 956 2573 68 82 116 0002844 3742 8 18 2 331 3067 11 80 112 0003981 5238...

Page 14: ...nd calibrated directly by The National Physical Laboratory England Certificate Nos 08C041 94020 08C041 93013A The instrument and or Sensor under test was calibrated by comparison to a optical Dew Point Hygrometer which is certified against a Standard Hygrometer calibrated directly by NIST USA Test Report No 262060 99 We hereby certify that the equipment detailed above has been tested and calibrate...

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