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FLOW BATCHING PROCESSOR
118
(4.65)
164
(6.42)
1/2 NPT
144
(5.67)
164
(6.42)
ALTERNATING TANKS APPLICATION
118
(4.65)
1/2 NPT
144
(5.67)
DPF-520 Series
U
Batch Control
U
Regeneration Control
U
High/Low Flow Rate Monitoring
U
Water Usage Monitoring
U
NEMA 4X
The DPF-520 Series is a batching flow processor
with additional output controls. It is designed for
use with OMEGA® flowmeters and flow sensors, as
well as other manufactuer’s products which have
frequency output proportional to flow. In addition to
batch functions, the DPF-520 Series indicates flow
rate, and other data in large 9.66 mm (³⁄₈") digits on an
easily-read, backlit display. Units of measure are user
selectable.
An analog output of 4 to 20 mA is available both in
active and passive loop configuration, and in
0 to 5 Vdc or 0 to 10 Vdc outputs, and can be
used in applications such as flow rate logging. Two
programmable pulse scaled outputs are also standard,
and can be used, for example, to provide proportional
chemical feed with a pulse-responsive metering pump.
The housing is supplied with two brackets for wallmount applications, or the top/bottom housings can be
easily separated and reassembled for panel-mount.
Dimensions: mm (inch)
164
(6.42)
(IP56)
164
(6.42)
1/2 NPT
144
(5.67)
DPF-520 shown
smaller than actual size.
SPECIFICATIONS
Power: 115 Vac, 50/60 Hz @ 125 mA, 12 Vdc @ 750 mA or
10 to 16 Vdc (220 Vac optional)
Temperature: 0 to 55ºC (32 to 130ºF)
Enclosure: Precision cast aluminum, NEMA 4X (IP56),
panel or wall mount configuration
Batch Outputs: Two form C (SPDT) relays, 115 Vac
6A maximum
Maximum Pulse Output: 100 mA at 60 Vac/Vdc,
opto-isolated, open-collector
Memory Type: Non-volatile EEPROM with auto-backup
Sensor Power: 12 Vdc, 10 mA
Display: Totalizer = 8 digit; Rate = 5 digit, backlit
Units: Volume = Gallons, cubic feet, cubic meters, millions
of gallons, milliliters, fluid ounces, pounds, liters;
Time = Seconds, minutes, hours, days
Analog Output: 4 to 20 mA passive opto-isolated;
4 to 20 mA active; 0 to 5 Vdc, or 0 to 10 Vdc
Sensor Input: 1 to 1000 Hz, ESD protected, interfaces to
current sinking sensor (NPN, TTL, contact closure) output
Setup Memory: Non-volatile EEPROM, auto-backup
Flow Sensor
TYPICAL DUAL FLOW
BATCH APPLICATION
DPF-520
HF
LF
S
T
118
(4.65)
ALTERNATING TANKS APPLICATION
To Order Visit omega.com/dpf-520
for Pricing
and Details
Model No. Description
DPF-521 Wall mount batch controller
DPF-521C Wall mount batch controller with
regeneration control
DPF-521R Wall mount batch controller with
rate alarm
DPF-521C-220V Wall mount batch controller with
regeneration control, 220 Vac
DPF-521R-220V Wall mount batch controller with rate
alarm control, 220 Vac
DPF-522 Wall mount usage monitor
DPF-522-220V Wall mount usage monitor, 220 Vac
Comes complete with 2 mounting brackets and operator’s manual.
Ordering Examples: DPF-521R, wall mount batch controller with
rate alarm.
DPF-522, wall mount usage monitor.
M-21
M
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