DCLI user manual - BeI The Deeter Group
Contents
1. Wiring Please refer to the unit label if the screw terminal layout is different to that shown below Ly S Power Wj E Power ao A Relay 2 gege _lglelgjalele Z Relay 2 alalele alelelalele Z__ Relay 1 Current loop Current loop Copyright Deeter Engineering Services Limited Document Revision 1 2 24 02 09 The DEETER Group Calibration The display module must be powered and connected to a current loop source before calibration can begin The relays do not require connecting during calibration or relay setup Calibration and relay settings are configured using the 2 buttons at the rear of the module Settings are saved to a non volatile memory and are reinstated after power up Re calibration may be required if additional equipment is added to the current loop circuit at a later stage Left hand button Right hand button power supply 4 20mA y Additional current output A loop driven devices device The displayed output is assumed to have a linear relationship with the input Therefore calibration requires recording just two input levels and selecting the desired displayed output for these inputs Any two inputs could be used but for greatest accuracy they should be as far apart as possible 4mA and2. for 2 seconds and then return to normal operation Document Revision 1 2 24 02 09 Copyright Deeter Engineering Services Limited The DEETER Group Mounting The display module is enclosed in a black plastic box with a tough dark red translucent face plate When mounted only the face plate protrudes above the mounting panel by a height of 7mm A 69 3mm x 29 3mm square aperture should be cut into the mounting panel with a 4mm clear border around the hole The module is designed with 4 flexible retaining arms which will grip when mounted into a panel thickness of 11 Gauge 2 95mm 0 116 14 Gauge 2 03mm 0 080 16 Gauge 1 63mm 0 064 Once mounted the module can easily be removed by squeezing together the flexible arms and pushing the module out of the mounting panel 69 3MM 29 3mmM Document Revision 1 2 24 02 09 The DEETER Group Supply voltage range Supply current Current loop voltage Current loop range Current loop resistance Relay contacts Operating temperature Display range Display linearity Environmental 7 to 26Vdc lt 100mA 30Vdc Max 1mA to 21mA OmA to 21mA for the 0 20mA option 100Q Normally open Form A 48 Vac dc 0 5A 5 to 60 C 999 to 9999 0 1 IP40 IP55 when fitted to a suitable enclosure To ensure maximum accuracy calibrate using the full 4mA
3. 20mA settings are assumed in the following example but the actual inputs can differ Copyright Deeter Engineering Services Limited Document Revision 1 2 24 02 09 The DEETER Group Display calibration and setup procedure e Copyright Deeter Engineering Services Limited Press and hold down the right hand button for 2 seconds The display will show CALI Adjust the loop current to the module to 4mA Press and hold the right hand button for 2 seconds The display will show 0 to represent the displayed output for the 4mA input To increment or decrement the display press and hold the left hand button Rapid change will start after 2 seconds and gradually increase in speed if the button is continually held down To toggle between increment and decrement press and release the right hand button When the desired display output has been selected for the 4mA loop current press and hold the right hand button for 2 seconds The display will show CAL2 Adjust the loop current to the module to 20mA Press and hold the right hand button for 2 seconds The display will show 0 to represent the displayed output for the 20mA input Repeat the process for setting the displayed output as above Press and hold the right hand button for 2 seconds The display will show dp Choose the desired decimal point position or decimal point off by pressing the left hand button Press and hold the right hand button
4. Open the outer carton and check all parts listed below are enclosed and undamaged e amp The DEETER Group DCLI Deeter Current Loop Indicator User Manual Packing list The Indicator Module The User Manual If any parts are missing or damaged please contact the Deeter Group at a a a a a a Copyright Deeter Engineering Services Limited In Europe Deeter House Valley Road Hughenden Valley Bucks HP14 4LW Tel 44 0 1494 566046 Fax 44 0 1494 563961 Email sales deeter co uk In the USA 446 Commerce Street Tallmadge Ohio 44278 Tel 001 330 630 3510 Fax 001 330 630 3512 Sales deeterelectronicsinc com Warnings a Power down all connected equipment before making any connections to the display unit Take care not to damage the connected wires when inserting the display in the mounting panel Do not attempt to repair this product yourself Contact the Deeter Group for product servicing or repairs This device is not water proof Do not touch the electronic circuit should it become exposed When disposing of this product do so in accordance with your local waste disposal regulations Document Revision 1 2 24 02 09 Copyright Deeter Engineering Services Limited The DEETER Group General The DCLI Deeter Current Loop Indicator is an easy to mount display module designed to work with any 4 20mA current loop process sensor A 0 20mA option is provid
5. ed and can be selected during calibration setup The integral display consists of four 7 segment LED s capable of showing values between 999 and 9999 with a selectable decimal point position Any number in this range can represent the minimum current and any other number the maximum current thus the display may represent a wide variety of measurement units and may also be configured to represent an inverted 20 4mA current if desired The module incorporates two relays with normally closed contacts which can be individually configured to open and close at any display threshold Separate ON and OFF settings allow the amount of hysteresis to be chosen and depending on whether the ON setting is higher or lower than the OFF setting the relays can be chosen to either open high close low or open low close high see diagrams below Display Value Relay ON Relay on Relay contacts closed threshold threshold gre ater th an Hysteresis Relay contacts as per last threshold crossed the OFF Relay off threshold threshold Relay contacts open Loop Current Display Value Relay ON threshol d Relay off Relay contacts open h threshold ess than Hysteresis Relay contacts as per the OFF last threshold crossed Relay on threshold threshold Relay contacts closed Loop Current Document Revision 1 2 24 02 09 The DEETER Group
6. for 2 seconds The display will show 4or0 Press the left hand button to toggle the decimal point between 4 and 0 This selects the 4 20mA or 0 20mA operation Press and hold the right hand button for 2 seconds to save and complete the calibration mode Vary the current input to check the display is configured as required before moving on to setting the relays The display will show Hi or Lo for values outside the display range Document Revision 1 2 24 02 09 The DEETER Group Relay setup procedure e Copyright Deeter Engineering Services Limited The relays are configured to turn on or off at display thresholds not the loop current Press and hold the left hand button for 2 seconds to enter the Relay Setup Mode The display will show rl on representing Relay1 ON for a short while then show the present setting To increment or decrement the setting press and hold the left hand button Rapid change will start after 2 seconds and gradually increase in speed if the button is continually held down To toggle between increment and decrement press and release the right hand button When the required setting has been selected press the right hand button for 2 seconds to advance to the next stage Use the above method to set all 4 relay thresholds rl on Relay1 ON 1 off Relayl OFF r2 on Relay2 ON and 2 off Relay2 OFF When relay setup has been completed the display will show donE
7. to 20mA current loop range Re calibrate if additional equipment is added to the current loop Display Messages HPE Display value greater than 9999 LO Display value less than 999 OPEn Loop current less than 1mA 4 20mA option only OVEr Loop current greater than 21mA dxxx Start up firmware revision where xxx revision number Other messages will be displayed during display calibration and relay setup modes Copyright Deeter Engineering Services Limited Document Revision 1 2 24 02 09
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