Omega Products DPF75 User Manual
1
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8 DIN RATEMETERS, TOTALIZERS,
AND BATCH CONTROLLERS
For Frequency Inputs
DPF76 Series
U Front-Panel
Programming
and Scaling
U Rate and Total
in One Unit
U Remote or
Front-Panel Reset
U Optional Analog
Output for Rate
or Total
U NEMA 4X (IP66)
Front Panel
The DPF75 is a combination
6-digit totalizer/batch controller
and 5¹⁄₂ digit ratemeter with 2 relays.
The user can set one relay for batch
and the other for rate alarm. The
totalizer and ratemeter display in the
same engineering units: units per
second, minute, or hour. The DPF75
can accept 2 inputs and separately
scale them for “A - B” or “A + B”.
Either input A rate or net total can
be displayed.
The DPF76 is a 6-digit scalable
totalizer/batch controller with 2 relays
for 2-stage batch control. The DPF78
is a 4¹⁄₂ digit scalable ratemeter with
2 alarm relays.
SPECIFICATIONS
Input Power: 110 Vac ±15%, 220 Vac
±15%, 6.5 VA at rated AC voltage
Output Power (AC-Powered
Units Only):
unregulated—10 + 50%
Rate Accuracy: ±0.1% of rdg + 1 LSD
K Factor: Up to 5-digits
Temperature:
Operating: 0 to 54°C (32 to 129°F)
Storage: -40 to 93°C (-40 to 199°F)
Memory: EEPROM stores data for
10 years if power lost
Pulse Input: Low = 0 to 1 Vdc;
high = 4 to 30 Vdc; 10 kΩ impedance,
up to 10 kHz; min 0.05 Hz for rate
indication
+12 Vdc @ 50 mA
1
DPF75
Option “-LL”: 30 mV min to 50V max
p-p input, 10 kΩ impedance, 5 kHz max
Relays: Rated 5 A @ 240 Vac or
28 Vdc; SPST, selectable for NO or
NC; relays latch or auto-recycle after
0.1 to 99.9 s
Panel Cutout: 4.5 H x 9.2 cm W
(1.772 x 3.622"); DIN standard,
10.3 cm (4.06") depth
Shipping Weight: 907 g (2 lb)
DIN, shown actual size.
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8
OMEGACARESM extended warranty program
is available for models shown on this page.
Ask your sales representative for full details
when placing an order. OMEGACARESM
covers parts, labor and equivalent loaners.
To Order Visit omega.com/dpf70 for Price and Details
Model No. Description
DPF75 Ratemeter and batch controller with 2 separate 5 A SPST relays
for rate alarm or batching
DPF76 Scalable totalizer/batch controller with relays
DPF78 Scalable ratemeter with 2 separate 5 A SPST alarms
Options
Ordering
Suffix Description
-A Analog output, 0 or 4 to 20 mA proportional to rate/total*
-LL Low level magnetic input A, 30 mV range
-220 220 Vac power
-RS232 RS232 communications*
-RS422 RS422 communications*
“-A”, “RS232” and “RS422” options are mutually exclusive. Only one may be ordered with a unit.
*
Accessories
Model No. Description
DPP-5 ¹⁄₈ DIN panel punch
FLSC-AMP
Comes complete with operator’s manual.
Ordering Examples: DPF75-RS232-LL, ratemeter/batch controller with RS232 output,
and low-level input option.
DPF75, totalizer/batch controller,
total of 5 years.
Amplifier for low-level turbine and paddlewheel sensor inputs
OCW-3, OMEGACARESM extends standard 2-year warranty to a
M-22
Extended Warranty
Program
SM
M
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