How it Works
Greyline Instruments
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DLT-2.0
Operating Manual
39 pgs1.03 Mb0
Specifications
4 pgs546.08 Kb0

Greyline Instruments DLT-2.0 Operating Manual

www.greyline.com
USER'S GUIDE
Installation & Operation
Instructions
Model DLT 2.0
Manual Series A.1.3
Note: This page has been left blank intentionally.
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
UNITS/MODE .................................................................................................. 11
CALIBRATION................................................................................................ 12
CHANNEL SETUP .......................................................................................... 16
RELAY PARAMETERS .................................................................................. 17
SPECIAL FUNCTIONS ................................................................................... 18
SENSOR MOUNTING/LOCATION ............................................................... 20
APPLICATIONS HOTLINE ............................................................................ 26
PRODUCT RETURN PROCEDURE .............................................................. 27
APPENDIX A - OPTIONS ............................................................................... 29
DATA LOGGING (Optional) ........................................................................... 35
CONVERSION GUIDE ................................................................................... 37
SPECIFICATIONS ........................................................................................... 38
IMPORTANT NOTE: This instrument is manufactured and calibrated to meet product specifications. Please read this manual carefully before installation and operation. Any unauthorized repairs or modifications may result in a suspension of the warranty.
Available in Adobe Acrobat pdf format
Page 3
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. IMPORTANT NOTE: To comply with CSA/UL electrical safety standards, AC power input and relay
connection wires must have conduit entry to the instrument enclosure. Installation requires a switch, overcurrent fuse or circuit breaker in the building (in close proximity to the equipment) that is marked as the disconnect switch.
Risk of electric shock. Loosen cover screw to access connections. Only qualified personnel
!
should access connections. Note: Use of instrumentation over 40°C ambient requires special field wiring. Note: User replaceable fuse 2 Amp 250V (T2AL250V).
Page 4
CONNECTIONS
DLT 2.0 Differential Level Transmitter
Sens
Sens
A
B
4-20 Diff
RLY2
RLY1
– +
NO C NC
NO C NC
DATA LOGGER OPTION
EXTRA RELAYS OPTION
NC
RLY3
NC
C
NO
C
NO
RLY4
AC
POWER INPUT
LN
HEATER OPTION
AC GND
USB HARNESS CONNECTOR
4-20
Sens
NC
RLY5
+ -
C
A
NO
+ -
4-20
B
Sens
NC
C
RLY6
NO
GND
CORE
WHT
SHLD GRN
CORE
WHT
SHLD GRN
Page 5
DLT 2.0 Differential Level Transmitter
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 and keys.
To store calibration values permanently (even through power interruptions), press .
Page 6
CALIBRATION MENU
DLT 2.0 Differential Level Transmitter
Mode} Flow
Linear ft
Volume USG
Time min
Temperature C
--Units/Mode--------
Display Alt
--Calibration-------
Min Range 1.000ft
} Sensor B
Max Range 12.000ft
Slope Offst 0.000ft
Damping 10%
LOE Time 30sec
Size 22.5°
Type V-notch}
-- ----Channel Setup--
OAlternate N
FlowFunction
8000 USG/mOff
10000 USG/mOn
Sensor B
Mode Pump
Relay 1}
--Relay Parameters--
LOE mode Off
SetupChannel
Calibration
Relay Parameters
Units / Mode}
--Menu Selections----
Password 0000
--Password----------
Log Site ID 0}
--Data Logging-------
Data Logging
Special Functions
Simulation
Log Logging
Mode Flow
Set Date Sep 22/2009
Set Time 14:24:40
Interval 30sec
Configuration
Language English
Analog Out 4-20mA
Backlight High
Reset Totalizer NO
Restore Defaults NO
--Special Functions-
}
New Password 0000
--Simulation--------
ALevel 12.000ft
Flow B 0.00USG/m
}Test Actual
Level A4-20mA 19.99
Difference 0.00ft
4-20mA Flow B 4.00
4-20mA Diff 20.00
Relays 1 2 3 4 5 6
6Relays
24Logger 1. T
Utility 1.25.05
Sonar 1.14
--Configuration-----
Analog 3Out
}
USG/min
0.000
Data log Logging
Log Used 0%
Sensor A Good
Sensor B Good
Temperature A 22C
--Message-----------
Temperature B 22C
--24 hr log-------- -B
--24 hr log-------- -A
Tot 20130.8 USG
11:08:00Max Time
50138 USGTotal
52.20 USG/mMaximum
34.82 USG/mAverage
Date Feb. 12/20} 10
4.82 ftAverage
8.20 ftMaximum
0.000 ftMinimum
11:08:00Max Time
Date Feb. 12/20} 10
Relays 1 2 3 4 5 6
9:15:00Min Time
0.000 USG/mMinimum
9:15:00Min Time
.00ft} Level A 12
20130.8USGTot
Level B 11.30ft
Difference 0.70ft
EC 100%A
EC B 100%
--Status------------
Relays 1 2 3 4 5 6
OPTIONAL FEATURES
Page 7
ICONS
DLT 2.0 Differential Level Transmitter
A
1. 2.
1.
1.
2.
2. 3.
A
1.
2.
A
4.
3.
Message waiting. Press .Ç
Data logging .off
Data logging .on
USB file download.
File download completed.
Download Error.
A sensor reading displayed. Echo OK.
B
D
1.
1.
B
D
2.
2.
B
D
3.
3.
Page 8
B sensor reading displayed. Echo OK.
Difference reading displayed. Echo OK.
No Echo .
DLT 2.0 Differential Level Transmitter
USG/min
0.000
Tot 20130.8 USG Relays 1 2 3 4 5 6
--Message----------­Data log Stopped Log Used 0% Sensor A Good Sensor B Good Temperature A 21C Temperature B 21C
--Status------------
.00ft} Level A 12
Level B 11.30ft Difference 0.70ft
20130.8USGTot EC 100%A EC B 100% Relays 1 2 3 4 5 6
--24 hr log-------- -B Date Feb. 12/20} 10
50138 USGTotal
34.82 USG/mAverage
52.20 USG/mMaximum 11:08:00Max Time
0.000 USG/mMinimum
9:15:00Min Time
MAIN DISP LAY
NOTE
Sensor A reads Sensor B reads
The display is configured from “
Range, Level or Volume
Range, Level, Volume HRT and Flow
Units/Mode” 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
Press from the MAIN display to view status of the data logger and error/warning messages provided by the instrument. The Message Icon will appear on the MAIN display if error messages are being generated by the instrument. Press to return to the main display.
STATUS
Press from the MAIN display to view instrument status.
Level for both
sensors is displayed.
Tot Displays the current totalizer reading.
EC Displays echo confidence.
Relays Energized relays will display as a white character on a black
background.
24 HR LOG (Data Logging option only)
Press from the MAIN display to view a formatted flow report from instruments with a built-in data logger. Press to scroll down one day or repeatedly to scroll to a specific date. Press to toggle between Sensor A and Sensor B formatted reports. Up to 365 days can be stored. Newest date will overwrite the oldest. Press to return to the main display.
Page 9
DLT 2.0 Differential Level Transmitter
--Password----------
Password 0000
PASSWORD
The password (a number from
0000 to 9999) prevents unauthorized access to
the Calibration menu.
From the MAIN display press to get to password is
Menu Selections screen.
0000 and if it has not been changed press to proceed to the
If a password is required, press to place the cursor under the first digit and or to set the number, then to the second digit, etc. Press or to proceed to
the
Menu Selections screen.
A new password can be stored by going to
Password
.
Password. Factory default
Special Functions/New
Page 10
DLT 2.0 Differential Level Transmitter
--Units/Mode-------­Mode Flow
}
Linear ft Volume USG Time min Temperature C Display B
--Units/Mode--------
Mode Flow
Linear} in
--Units/Mode--------
}Volume USG
ft3
bbl
IMG
USMG
--Units/Mode--------
Mode Flow Linear in Volume USG Time min
Temperature} C
ft
mm
m3
IG
UNITS/MODE
From
Flow, HRT or Volume.
Mode press the and then the or to select Level, Range,
Range displays distance from the sensors to the target or liquid surface like a
tape measure. Range mode is useful to measure the exact distance from the sensors to the zero level during calibration.
Level used to measure tank levels and level difference in linear units, or
"Head" in an open channel for comparison with flow tables.
m
Volume displays inventory of the two tanks in engineering units.
HRT select Horizontal Round Tank mode to calculate and display volume
units in horizontal round tanks.
Flow calculates channel flow through a flume or weir (sensor B only).
Sensor A measures level.
L
Volume, HRT or Flow gives the additional choice of volumetric units:
ft3 - cubic feet USG - US gallons USMG - US million gallons (FLOW only) IG - Imperial gallons IMG - Imperial million gallons (FLOW only) m3 - cubic meters
F
L - liters bbl - U.S. oil barrel
Press to store the selection, then to the next menu item and to enter.
Linear press and then or to select units of measurement.
Press to store the selection.
Time press and then or to select day, hr, min or
sec.
Temperature press then  to select C or F (Centigrade or
Fahrenheit)
Press or to return to the Menu Selections screen.
Page 11
DLT 2.0 Differential Level Transmitter
--Calibration------­Sensor B
}
Min Range 1.000ft Max Range 12.000ft Slope Offst 0.000ft Damping 10% LOE Time 30sec
CALIBRATION
Press to
Calibration and to enter. Use or to position
before each menu item and to enter. When settings are completed press to store and return to the
Calibration menu.
Note - Sensors A & B do not
need to be installed at the same height.
Sensor
Select either Sensor A or Sensor B for calibration.
Min Range distance from the sensor face to highest expected level.
Max Range distance from the sensor face to channel floor.
MaxVol (Used for double tank monitoring applications, Volume and
HRT mode only. Enter the maximum volume of the vertical or horizontal tank.
Note - to measure differential level the two sensors need a common reference assumed to be a level channel floor.
SENSOR ‘A’
SENSOR ‘B’
MIN
RANGE
MAX RANGE
BARSCREEN
SLOPE OFFSET
MIN
RANGE
MAX RANGE
Slope Offst
Appears when calibrating Sensor B. Enter a slope offset value
to compensate for a sloped channel floor. Offset will be a positive value when Sensor B channel floor is lower than Sensor 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 (0­99%). Some experimentation may be required to select the optimum damping value. A value of 1% is recommended for most applications and for fast level changes (up to ½ inch/sec ­13 mm/sec).
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