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Greyline DLT 2.0 User Manual

Differential level transmitter
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USER'S GUIDE
Installation & Operation
Instructions
Differential Level Transmitter
Model DLT 2.0
Manual Series A.1.3

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Summary of Contents for Greyline DLT 2.0

  • Page 1 USER'S GUIDE Installation & Operation Instructions Differential Level Transmitter Model DLT 2.0 Manual Series A.1.3...
  • Page 2 Note: This page has been left blank intentionally.

  • Page 3: Table Of Contents

    DLT 2.0 Differential Level Transmitter INDEX CONNECTIONS: ....................4   KEYPAD SYSTEM .................... 6   CALIBRATION MENU ..................7   ICONS ......................... 8   MAIN DISPLAY ....................9   MESSAGE ICON ....................9   STATUS ......................9   PASSWORD ..................... 10  ...

  • Page 4: Connections

    DLT 2.0 Differential Level Transmitter CONNECTIONS: POWER INPUT: 100 to 240 VAC 50/60Hz . No adjustments are necessary for voltages within this range. Optional DC: 9-32 VDC, 9 Watts. Connect to + and - terminals. Optional Thermostat and Heater modules are available rated for 115 VAC or 230 VAC.
  • Page 5 DLT 2.0 Differential Level Transmitter CONNECTIONS Sens Sens DATA LOGGER OPTION CORE SHLD CORE SHLD 4-20 4-20 Sens Sens EXTRA RELAYS OPTION RLY3 RLY4 RLY5 RLY6 POWER INPUT – 4-20 Diff HEATER OPTION RLY2 RLY1 USB HARNESS CONNECTOR Page 5...

  • Page 6: Keypad System

    KEYPAD SYSTEM The DLT 2.0 uses a menu system. Arrows show the four directions to leave a menu box. Press a key to move to the next item in the direction shown. Move the cursor (underline) under numerals and increase or decrease numerals with the ...

  • Page 7: Calibration Menu

    DLT 2.0 Differential Level Transmitter CALIBRATION MENU Page 7...

  • Page 8: Icons

    DLT 2.0 Differential Level Transmitter ICONS Ç Message waiting. Press Data logging Data logging USB file download. File download completed. Download Error. A sensor reading displayed. Echo OK. B sensor reading displayed. Echo OK. Difference reading displayed. Echo OK. No Echo .

  • Page 9: Main Display

    Units/Mode The display is configured from “ ” menu to display the Sensor A measurement, Sensor B measurement or Level Difference. The DLT 2.0 will start-up with this display. The display also shows Units Selected, Totalizer and Relay States. MESSAGE ICON...

  • Page 10: Password

    DLT 2.0 Differential Level Transmitter PASSWORD --Password---------- Password 0000 0000 9999 The password (a number from ) prevents unauthorized access to the Calibration menu. From the MAIN display press  to get to Password . Factory default and if it has not been changed press  to proceed to the...

  • Page 11: Units/Mode

    DLT 2.0 Differential Level Transmitter UNITS/MODE --Units/Mode-------- Mode Flow Linear  press the  and then the  or  to select Mode Level Range From Volume Flow Volume Time Temperature Display Range displays distance from the sensors to the target or liquid surface like a tape measure.

  • Page 12: Calibration

    A channel floor. Damping Minimum damping allows fast response to level changes. Increasing damping slows the DLT 2.0's response to level changes and is ideal to smooth the display and outputs in turbulent conditions. Damping value is shown in percent (0- 99%).
  • Page 13 Appears when calibrating Sensor B. Press  and  or  to LOE Time change the number of seconds without receiving an echo before the DLT 2.0 displays ECHO LOSS, and Control relays change state as calibrated under Relay Parameters. Factory default is 30 seconds and is recommended for most applications, Minimum is 1 second and maximum is 99 seconds.
  • Page 14 2. Check the maximum range with the sensor installed: MAX LEVEL When liquid is at zero level press  to view the Range reading in the MAX RANGE Status menu. Use this range measured by the DLT 2.0 as the Range 100% ZERO LEVEL setting.
  • Page 15 2. Check the maximum range with the sensor installed by: V-NOTCH When liquid is at zero level press  to view the Range reading in the Status menu. Use this range measured by the DLT 2.0 as the SENSOR Range setting. RANGE MAX LEVEL...

  • Page 16: Channel Setup

    DLT 2.0 Differential Level Transmitter CHANNEL SETUP --Channel Setup------ Type V-notch Custom Khafagi Rect Weir w/EC Rect Weir Trapezoidal Leopld-Lagco Palmer Bowlus Parshall --Channel Setup------ --Channel Setup------ --Channel Setup------ Type V-notch Type Custom Type Khafagi Size 22.5 ° 0.0000 Height 0.000ft...

  • Page 17: Relay Parameters

    DLT 2.0 Differential Level Transmitter RELAY PARAMETERS --Relay Parameters-- Relay Sensor Diff Press  and  or  to select a relay (2 relays are standard, 4 Relay Function Flow additional are optional). Mode Pump 10000 USG/m Press  and  or  to select...

  • Page 18: Special Functions

    DLT 2.0 Differential Level Transmitter SPECIAL FUNCTIONS --Special Functions- Language English Analog Out 4-20mA Language English French Spanish Select Backlight High and press . Reset Totalizer Restore Defaults New Password 0000 Analog Out 4-20mA 0-5V Select mode for the analog output.
  • Page 19 DLT 2.0 Differential Level Transmitter SIMULATION --Simulation-------- Test Actual Level A 116.74in Exercises the 4-20mA (0-5V) outputs, digital display and control relays. Level B 62.11in Difference 54.63in and press  to simulate maximum Flow, Range or Test Maximum Select 4-20mA Level A 18.15...

  • Page 20: Sensor Mounting/Location

    GOOD SENSOR MOUNTING/LOCATION - Tank Level/Inventory Applications 90° Each DLT 2.0 Level Transmitter includes two non- contacting ultrasonic sensors. The sensors must be installed in a position to obtain unobstructed echoes from the liquid or material being measured. Mount the sensor away from pipes, ladders, or structural members which might cause continuous false echoes.
  • Page 21 DLT 2.0 Differential Level Transmitter SENSOR MOUNTING LOCATION - Tank Level/Inventory Applications PREFERRED SENSOR LOCATION 1 FT (30 cm) HORIZONTAL FROM SIDEWALL FOR 6" SCHEDULE 40 EVERY 10' (3 m) VERTICAL STAND PIPE IF EXTENSION NOTE: 2 FT (60 cm) FOR...
  • Page 22 Stilling wells are recommended to reduce the effects of turbulence as water flows through the flume or weir. The DLT 2.0 sensor is centered over the stilling well. Sensor height must be 8" (203 mm) or more above the highest water level.
  • Page 23 DLT 2.0 Differential Level Transmitter ENCLOSURE INSTALLATION Locate the enclosure within 20 ft (6 m) of the sensor (500 ft -150 m optional). The enclosure can be wall mounted with the four mounting screws (included) or panel mounted with Option PM Panel Mount kit from Greyline Instruments.
  • Page 24 DLT 2.0 Differential Level Transmitter PZxx Series Sensors Troubleshooting Resistance measured (between the shield and center wire) across the coaxial cable ends by mulitmeter indicates ambient temperature. Resistance vs. Temperature Page 24...
  • Page 25 DLT 2.0 Differential Level Transmitter FUSE REPLACEMENT 1. Turn OFF power. 2. Loosen cover screw and open. 3. Remove power module. 4. Locate fuse on Power Board. 5. Replace fuse with 2 AMP/ 250V, 5 x 20mm fuse. 6. Reinstall power module into chassis.

  • Page 26: Applications Hotline

    DLT 2.0 Differential Level Transmitter APPLICATIONS HOTLINE For applications assistance, advice or information on any Greyline Instrument contact your Sales Representative, write to Greyline or phone the Applications Hotline below: United States: Tel: 315-788-9500 Fax: 315-764-0419 Canada: Tel: 613-938-8956 Fax: 613-938-4857...

  • Page 27: Product Return Procedure

    Instruments may be returned to Greyline for service or warranty repair. Obtain an RMA Number from Greyline - Before shipping a product to the factory please contact Greyline by telephone, fax or email to obtain an RMA number (Returned Merchandise Authorization). This ensures fast service and correct billing or credit.
  • Page 28 Greyline will replace or repair, free of charge, any Greyline product if it has been proven to be defective within the warranty period. This warranty does not cover any expenses incurred in the removal and re-installation of the product.

  • Page 29: Appendix A - Options

    APPENDIX A - OPTIONS EXTRA SENSOR CABLE - OPTION XC Each Greyline level instrument includes 25 ft. (7.6 m) RG62AU coaxial cable. Additional RG62AU coaxial cable and Cable Junction Box (Option JB4X) may be installed to extend cable up to 500 ft (152m) as required during installation.
  • Page 30 DLT 2.0 Differential Level Transmitter EXTENDED SENSOR CABLE INSTALLATION IN MANHOLE MANHOLE COVER XC EXTENDED SENSOR CABLE UP TO 500 ft 152 m CONDUIT TO ELECTRONICS ULTRASONIC SENSOR Wetwell, Sump or Pump Station Page 30...
  • Page 31 Class II, Groups E,F,G Class III The Intrinsic Safety Barrier may be ordered with the Greyline instrument and is supplied mounted in the Greyline instrument enclosure. Replacement barrier fuses (Part No. ISB- 011239) may be purchased separately. The instrument enclosure containing the ISB Intrinsic Safety Barrier must be installed in a non-hazardous location.
  • Page 32 DLT 2.0 Differential Level Transmitter GN3SPEC-ISB-04 The intrinsic safety barrier assemblies installed in the DLT 2.0 limit the voltage and current supplied to the transducers to the values listed under ‘Barrier Specifications’. To safely install Greyline transducers certified for use in hazardous...
  • Page 33 DLT 2.0 Differential Level Transmitter ENCLOSURE HEATER AND THERMOSTAT - Option TH Instruments can be factory-equipped with an Enclosure Heater and Thermostat or the module can be customer-installed. The Thermostat is factory set to turn ON at 40°F (4.5°C) and OFF at 60°F (15.5°C).
  • Page 34 LCD display. Test operation of the DLT 2.0 by holding the sensor steadily and aiming at a flat, stable target 12 to 28" (305 to 711 mm) away from the end of the sensor. Allow a few seconds for the DLT 2.0 to lock onto the target before displaying its distance.

  • Page 35: Data Logging (Optional)

    DLT 2.0 Differential Level Transmitter DATA LOGGING (Optional) --Data Logging------- Log Site ID Setup Mode Level Range Flow Data Logging Select from Menu Selections. Volume Set Date Feb 18/2008 Mar 19/2009 Log Site ID Enter a number from . The site ID will become...
  • Page 36 Older files can be erased or moved from the flash memory drive or a new memory drive can be used. OPENING LOG FILES Install Greyline Logger on your PC or laptop. Refer to the Help menu in the program for detailed instructions. Select File/Open/Instrument Log (.log) to open the log file from your USB flash drive.

  • Page 37: Conversion Guide

    DLT 2.0 Differential Level Transmitter CONVERSION GUIDE FROM MULTIPLY BY US GALLONS CUBIC FEET 0.1337 US GALLONS IMPERIAL GALS 0.8327 US GALLONS LITRES 3.785 US GALLONS CUBIC METERS 0.003785 LITRES/SEC 15.85 LITRES CUBIC METERS 0.001 BARRELS US GALLONS BARRELS IMPERIAL GALS 34.9726...

  • Page 38: Specifications

    DLT 2.0 Differential Level Transmitter 7.4 / 188 mm " 6.46 / 164 mm " 5.12 / 130 mm " SPECIFICATIONS Accuracy: 0.25% F.S., Repeatability: 0.1% F.S., Linearity: 0.1%F.S. Displays: White, backlit matrix - displays flow rate, totalizer, relay states, operating mode and DLT 2.0...
  • Page 39 DLT 2.0 Differential Level Transmitter Optional Sensor PZ32T 25' (7.6 m) RG62AU 3/4" COAXIAL CABLE Maximum Range: 32 ft. (10 m) ISOLATION COUPLING Deadband (blanking): Programmable, minimum 12” (305 (SUPPLIED) Beam Angle: 8° at 3 DB 3/4" 3-7/8 " Temperature Compensation:...

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