Omega Products DPF82 User Manual

1

⁄

DIN DUAL RATEMETER/TOTALIZER

8

Two Separate Ratemeters, Totalizers with Combination Function

1

DPF82
larger than actual size.

⁄

8 DIN, shown

DPF80 Series

U Displays A, B, and C

Rate and A, B, and C Total

U Separate Scaling Factors

for A and B Inputs

U C Displays A + B, A - B,

A ÷ B, and A ÷ (A+B)

U Pulse Input: 10 kHz Max
U Security Lockout
U NEMA 4X (IP66)

Front Panel

U 30 mV Magnetic

Pickup Inputs

U 4 to 20 mA or 0 to 20 mA

Analog Output Available

The DPF80 Series (dual-rate
totalizer) consists of 5-digit
ratemeters and 6-digit totalizers in a
¹⁄₈ DIN package. The user can select
1 of 6 displays to show A, B, or C
rate and A, B, or C total. Inputs A
and B have separate scaling to read
in engineering units.

A 4 to 20 mA (0 to 20 mA) output of
the C rate or total is optional. The
user can also press the VIEW
button to see 6 separate items:
total A, total B, total C, rate A, rate
B, rate C. Negative values are
displayed with a negative symbol
(e.g., -12345). For the C value, the
user can choose from the following
combination of A and B inputs: TO­TAL; with a choice of A + B or A - B,
RATIO; with choice
of A ÷ B (x100) to show percent of A
to B quantity or A ÷ [A + B (x100)] to
show percent of A to total quantity.

Two independent presets are
standard. The user selects whether
output A is activated by total or
rate value of input B or selected C.
Outputs activated by A or B total can
be set to latch or auto-recycle with
an adjustable output duration from

00.1 to 99.9 seconds. For rate, ratio,
or C total, outputs pull in when value
(equal to or above the preset and
drop out when value) is below the
preset minus the selected
0 to 99.9 hysteresis.

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SPECIFICATIONS

Display: 5-digit, 14 mm (0.55") high LED
Input Power:

110 Vac ±15% or 12 to 15 Vdc
220 Vac ±15% or 12 to 15 Vdc (optional)
24 Vac ±15% or 12 to 15 Vdc (optional)

Current: 250 mA dc max or 6.5 VA ac
Output Power:

(AC-powered units only) + 12 Vdc
@ 50 mA, unregulated -10 + 50%

Temperature

Operating: 0 to 54°C (32 to 130°F)

Storage: -40 to 93°C (-40 to 200°F)

Humidity: 0 to 90%, non-condensing
Memory:

10 years if power is lost

Inputs
DPF82: High-impedance DC pulse
input 4 to 30 Vdc (high), open or 0 to
1 Vdc (low),10 kΩ impedance,
10 kHz max speed; accepts
simultaneous inputs
DPF83: Mag. input, input A only,
accepts 30 mV input (50V max P/P),
signals 10 kΩ impedance, 5 kHz max,
(input B, 4 to 30V)
DPF84: Mag. input, inputs A and B,
accepts 30 mV input (50V max P/P)
signals 10 kΩ impedance 5 kHz max

Reset

Front Panel: Reset displayed value

and control output
Remote: 4 to 30 Vdc negative edge
resets all counters, “A” counter or “B”
counter (user selectable)

EEPROM stores data for

K factor/Scaling

The DPF80 Series has 2 separate
K factors that are used to convert the
input pulses to engineering units.
The 5-digit K-factor dividers, with
decimal keyed into any position, allow
easy direct entry of any K factor from

0.0001 to 99999. Separate factors
may be entered for the 2 separate
input channels.

Control Outputs

Relays

2 each NO Relay; 10 A 120/240 Vac or
28 Vdc. (NC relay contacts and NPN
transistor output available with solder
jumpers. Transistor output is internally
pulled up to 10 Vdc through relay coil,
sinks from 10 Vdc to 0.5V @100 mA)

Analog Output

An optional 4 to 20 mA (0 to 20 mA)
output is available. The output can be
programmed to track rate or total of the
C display. This feature is available by
adding suffix “A” to the model number.
Connections are via a 2-terminal
pluggable screw connector.
Programming is accomplished by using
the front panel in conjunction with rear
DIP switches.

Accuracy: 50 µA worst case
Compliance Voltage:

non-inductive

3 to 30 Vdc

Presets

Two control outputs are provided. To set
relay values, press “menu” button until
“Relay” appears on the display; the
A and B outputs can be assigned to the
A, B or C displays. A 5-digit value can
be entered for both presets, and the
decimal point location is the same as the
counter. The outputs can be set to
energize from 0.1 to 99.9 seconds or
latch (0.0). If a value other than 0.0 is
entered, the counters will auto reset at
the preset (for A and B counters).

Lockout

Unauthorized front panel changes can
be prevented by entering a user-select­ed 5-digit code. The front panel can be
completely locked out or the presets can
remain accessible.

Ratemeter

Accurate to 4¹⁄₂ digits (±1 display digit).
The ratemeter uses 1/tau with 8-digit
math, can sample from 2 to 24 seconds
maximum, and auto-range up to 5 digits
of significant information. In the “RPS”
mode, the ratemeter displays in units
per second, and in the “scale” mode,
units per hour or per minute. The unit will
display the rate of the A and B Inputs.

Counter

The two 6-digit counters can count
at 10 kHz speed. Each has a
separate 5-digit dividing scale factor.
The counters advance on the positive
edge of each pulse. Besides being able
to step through the total and rate values
of A and B inputs, the user can see a
selected combination of total and rate of
A + B, A - B, A ÷ B x 100 (percent of A
to B), A ÷ (A + B) x 100 (percent of A to
total). A negative display will be viewed
as a 5-digit display with a negative
symbol (-12345).

SM

Extended Warranty

Program

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.

Terminals:

1. COMMON

2. N.O.(N.C./NPN)

3. COMMON

4. N.O.(N.C./NPN)

5. A INPUT

6. B INPUT

7. 12 VDC OUT/+DC IN

8. -DC (GROUND)

9. RESET INPUT

10. 6 to 14 Vdc @ 50 mA

11. AC INPUT

ANALOG

12. AC INPUT

OUTPUT

13. V+

14. I-SINK

RELAYS

A

B

Mounting

Dimensions: mm (in)

1

⁄8 DIN

To Order Visit omega.com/dpf80 for Pricing and Details

Model No. Description
DPF82 Dual simultaneous 4 to 30 Vdc pulse inputs
DPF83 Magnetic pulse input A, and 4 to 30 Vdc pulse input B
DPF84 Dual simultaneous magnetic pulse inputs

Accessory

Model No. Description
DPP-5 ¹⁄₈ DIN panel punch

Comes complete with operator’s manual.
For 24 Vac power, add suffix “-24V” to model number. For 220 Vac power add suffix “-220V”

to model number, no extra charge. For analog output, add suffix “-A” to model number for
additional cost.

Ordering Examples: DPF82, dual simultaneous 4 to 30 Vdc pulse inputs.
DPF84, dual magnetic pulse input ratemeter. OCW-3 OMEGACARESM extends standard

2-year warranty to a total of 5 years.

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