Seametrics DL75 User manual

DL75
DATA LOGGER SYSTEM
INSTRUCTIONS
DATA LOGGER SYSTEM INSTRUCTIONS
The Leader in Flow Meter Value
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(2/01/08)

DL75
Data Logger
Data
Port
Active
Replace
Battery
GENERAL INFORMATION
The DL75 is a battery-powered data logger that can be used
with any SeaMetrics flowmeter. It stores pulses for weeks
or months, depending on the user-set frequency of read-
ing. Indicator lights on the unit flash to indicate when it is
functioning and when the battery is low.
Normal life of the 3.6 Vdc Lithium C-cell battery is ap-
proximately three years, depending on sampling interval.
When the battery light on the front of the logger begins to
blink, remove and replace the battery as soon as possible.
Logger data is non-volatile, and will be preserved during
battery change.
The DL75 can be factory-mounted on the meter or remotely
mounted. Housings are rugged cast aluminum, gasketed for
environmental protection.
When a DL75 logger is placed into operation, it is easily
set up in the field using a laptop computer. Data is also
retrieved from the DL75 by means of a laptop. One laptop
can be used to retrieve data from multiple loggers. Data can
be analyzed on the laptop or easily loaded onto a desktop
computer for analysis.
SeaMetrics FlowInspector software allows the downloading,
storing, viewing, graphing, charting and printing of data in
several formats. FlowInspector requires a PC with Windows
98, NT, 2000, or XP; CD-Rom drive; 800 x 600 screen reso-
lution; serial port or USB/serial adapter; and a SeaMetrics
DC3 data cable.
SPECIFICATIONS
3.6 Vdc lithium battery (included)
~3 years (varies with sampling interval)
mL, liter, gallon, Imperial gallon, cubic foot, cubic
meter, million gallon, acre-foot
Seconds, minutes, hours, days
Capacity at Sampling Interval
11 days at 15 seconds
22 days at 30 seconds
45 days at 60 seconds
90 days at 120 seconds
180 days at 240 seconds
Low battery; Power/flow
Selectable options (Stop or Overwrite)
10 minutes/month (.02%)
Power
Battery Life
Volume Units
Time Units
Data Storage Capacity
Indicators
Memory Wraparound
Clock Accuracy
FEATURES
Data port connector for SeaMetrics DC3 data
collection cable
Sturdy gasketed cover with potted electronics
Bright status LEDs flash to indicate meter
activity and battery life
Removable foot brackets for remote mounting
(wall mount model only)
Cable to meter (wall mount only)
Protective data port cap (shown open)
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Red
White
Black
Flow Sensor
+
S
-
MOUNTING
There are three mounting configurations for a DL75: Me-
chanical Meter (DL75M), Insertion Magmeter (DL75ME),
and Wall (DL75W). The meter mount models match up to
any SeaMetrics lower square housing. All configurations can
be factory-ordered or field-installed. Converting from one
mounting configuration to another requires use of MK10 or
MK20 mounting kits.
Meter Mounting. Remove the four screws on the meter
cover with a 5/32” Allen wrench. After connecting the leads
to their respective terminals (see diagram), put the DL75
in place of the meter cover and tighten the screws evenly.
The gasket on the DL75 should be visibly compressed by
tightening all around.
MOUNTING and CONNECTIONS
2.82”
3.95”
4.52”
3.35”
2.06”
3.95”
DL75
Data Logger
Data
Port
Active
Replace
Battery
4.90”
3”
16
DL75W (WALL MOUNT)
DIMENSIONS
DL75M (METER MOUNT)
BATTERY
DL75 TO INSERTION MAGMETER
CONNECTIONS (see also next page)
Magmeter
Terminal Block
+
S
-
+- +-
Caution: Do not apply external
power to the DL75.
DL75 TO MECHANICAL METER
SeaMetrics FlowInspector software is required for operation
of the DL75. Please consult your FlowInspector manual for
instructions in loading the software onto your computer,
setting up your DL75 for use, downloading, storing, and
analyzing your data.
BATTERY
OPERATION
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+
S
-
DL75
To Flow
Sensor
BATTERY
Sensor Input
Outputs
Sensor Pulse
- + - +
To Pulse Responsive
Metering Pump
FT415
BATTERY
LT-11568-D
12/18/06
SeaMetrics Incorporated • 19026 72nd Avenue South • Kent, Washington 98032 • USA
(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • www.seametrics.com
TROUBLESHOOTING
Problem Probable Cause Try...
Laptop screen reads
”No connection,” but
“Active” light is NOT
blinking
Laptop screen reads
”No connection,” but
“Active” light IS blinking
Flow rate incorrect
No flow rate
DL75 is transmitting data.
Wait two minutes before taking action.
Dead battery in DL75
Loose cable
Bad cable
K-factor setting is incorrect
Damaged flow sensor
Broken wire
Wait for “Active” light to blink
Replace battery
Tighten cable
Replace cable
Make sure K-factor in DL75 matches flow
sensor
Mechanical: See if rotor spins freely
EX Magmeter: See if “Status LED” indicator
is blinking
Check for flow rate
CONNECTIONS
Pulse
Passthru
Pulse
Scaled
Sensor
Input
Power
4-20 mA
To Flow Sensor
S
12-32 Vdc
Loop Power Supply
4-20 mA Device
-
++-
+
-
+
-
+
-
FT420
+
S
-
DL75
BATTERY
+
-
Caution: Do not apply external
power to the DL75.
DL75 TO FT420
DL75 TO FT415
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(2/01/08)