Seametrics DL76 User manual

DL76
DATA LOGGER SYSTEM
INSTRUCTIONS
DL76 DATA LOGGER SYSTEM INSTRUCTIONS
The Leader in Flow Meter Value

DL76
Data Logger
Data
Port
Active
Replace
Battery
GENERAL INFORMATION
The DL76 is a battery-powered data logger that can be used
with any SeaMetrics flowmeter. It stores pulses for up to
3 years, depending on the user-selected frequency of read-
ing. Indicator lights on the unit flash to indicate when it is
functioning and when the battery is low.
The DL76 can be factory-mounted on the meter or remotely
mounted. Housings are rugged cast aluminum, gasketed for
environmental protection.
When a DL76 logger is placed into operation, it is easily set
up using a laptop computer. Data is also retrieved from the
DL76 by means of a laptop and can be analyzed on the lap-
top or easily loaded on a desktop computer for analysis.
FlowInspector software (ordered separately) is required
for the downloading, storing, viewing, graphing, charting and
printing of data in several formats. FlowInspector requires a
PC with Windows 98, NT, 2000, XP, or Vista; CD-Rom drive;
800 x 600 screen resolution; serial port or USB/serial
adapter; and a SeaMetrics DC3 data cable. FlowInspector
comes in versions compatible with up to 4, up to 16, or
17+ dataloggers.
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)
SPECIFICATIONS*
*Specifications subject to change • Please consult our website for current data (www.seametrics.com).
3.6 Vdc lithium battery (included)
~3 years (varies with sampling interval)
0˚ to 130˚ F (-18˚ to 54˚C)
mL, liter, gallon, Imperial gallon, cubic foot, cubic
meter, million gallon
Seconds, minutes, hours, days
Liter, gallon, Imperial gallon, cubic foot, cubic meter, million gallon,
acre-foot, acre-inch, megaliter, thousand-gallon
Capacity at Sampling Interval
11 days at 15 seconds
22 days at 30 seconds
44 days at 60 seconds
6 months at 240 seconds
1 year at 480 seconds
3 years at 1450 seconds
Low battery; Power/flow
Selectable options (Stop or Overwrite)
10 minutes/month (.02%)
Power
Battery Life
Temperature
Rate Units Volume
Time
Total Units
Data Storage Capacity
Indicators
Memory Wraparound
Clock Accuracy

Red
White
Black
Flow Sensor
+
S
-
MOUNTING
There are three mounting configurations for a DL76: Me-
chanical Meter (DL76M), Insertion Magmeter (DL76ME),
and Wall (DL76W). 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 DL76
in place of the meter cover and tighten the screws evenly.
The gasket on the DL76 should be visibly compressed by
tightening all around.
MOUNTING and CONNECTIONS
DIMENSIONS
BATTERY
DL76 TO MAGMETER
CONNECTIONS (see also next page)
Magmeter
Terminal Block
+
S
-
+- +-
Caution: Do not apply external
power to the DL76.
DL76 TO MECHANICAL METER
SeaMetrics FlowInspector V.2 software is required for
operation of the DL76. Please consult your FlowInspector
manual for instructions in loading the software onto your
computer, setting up your DL76 for use, downloading, stor-
ing, and analyzing your data.
BATTERY
OPERATION
2.82”
3.95”
4.52”
3.35”
2.06”
3.95”
DL76
Data Logger
Data
Port
Active
Replace
Battery
4.90”
3”
16
DL76W (WALL MOUNT) DL76M (METER MOUNT)

+
S
-
DL75
To Flow
Sensor
BATTERY
Sensor Input
Outputs
Sensor Pulse
- + - +
To Pulse Responsive
Metering Pump
FT415
BATTERY
LT-13347-A
2/1/08
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” and
“Active” light is NOT
blinking
Laptop screen reads
”No connection,” but
“Active” light IS blinking
Flow rate incorrect
No flow rate
DL76 is transmitting data.
Wait two minutes before taking action.
Dead battery in DL76
Loose cable
Bad cable
K-factor setting is incorrect
Damaged flow sensor
Broken wire
Wait for “Active” light to blink
Replace battery
Tighten cable
Test cable (tech bulletin “DL75/76: Testing
the DC3 Cable” on Downloads page at
www.seametrics.com)
Make sure K-factor in DL76 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 DL76.
DL76 TO FT420
DL76 TO FT415
DL76 FT415
DL76 FT420