Seametrics DL75 v.1 - Manual (Page 4)

+
S
-
DL75
To Flow
Sensor
BA
TTER
Y
Sensor Input
Outputs
Sensor
Pulse
-
+
- +
To Pulse Responsive
Metering Pump
FT415
BA
TTER
Y
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
BA
TTER
Y
+
-
caution: Do not apply external
power to the DL75.
DL75 TO FT420
DL75 TO FT415
AR
CH
IVE
D
(2/01/08)