Omega Products DP-F31 User Manual

TWO-STAGE BATCH CONTROLLER/RATEMETER

Extended Warranty

Program

SM

Optional RS232 or 422 Computer Interface Capability

DP-F30 Series

Starts at

$

620

Ideal for use with
all OMEGA®mass
flowmeters,
controllers, turbine
and paddlewheel
flow sensors, vortex
meters, magmeters,
and pitot tubes.

DP-F31, $620, shown

smaller than actual size.

63.5 H x 187 mm W (2.5 x 7.375") cutout

Temperature:

 Displays Rate, Batch

Total, and Grand Total

 Separate K Factors

for Rate and Total

 12 to 24V Output
 Optional 16-Point

Linearization

 NEMA 4X (IP65)

Front-Panel Cover

The DP-F30 Series ratemeters/
totalizers accept 3 to 30 Vdc pulses,
dry-contact closure, voltage, or
milliamp inputs, and provides
2-stage SPDT relay outputs for
batch control. The display is fully
scalable for engineering units and
may be toggled between batch total,
rate, and grand total. The
linearization option allows the user
to select up to 16 different K factors
over the input range for accurate
indication of non-linear signals.

Other features include 12 to 24 Vdc
output for powering up flowmeters;
pulsed (0.1 to 9.9 s) or maintained
outputs; input filtering for dry-contact
closure (such as reed relays);
local/remote reset; excitation for
open-collector or mechanical
contacts; user-programmable
auto-reset of batch total (repeat
cycles, 10 Hz max); security lockout
to prevent unauthorized changes;
factored pulse output; and analog
output for rate or total (analog output
not available with square root

-SQRT option).
The DP-F30 series indicates rate

to 51⁄2-digits and total to 8-digits, with
program and count data stored for
up to 10 years if power is lost.

SPECIFICATIONS

Input Power: 110 Vac ±15% or 12 to

27 Vdc std.; 220 Vac ±15% optional

Current: Max 250 mA DC or 3.2 VA
Output Power: On AC-powered units

only: +24 or +12 Vdc @ 100 mA;
unregulated (±5% worst case)

Pulse Inputs:

DP-F31: 0 to 1 Vdc (low),

3 to 30 Vdc (high), 20 kHz max
(min on/off 35 µs)
DP-F32: 4.7 kΩ pull up to +5 Vdc on
input for pulsing with contact to
ground or NPN collector transistor

Factored Output: Min on/off: 0.013 ms;
open collector sinks 100 mA max
from 1 to 30 Vdc max; max factored
count speed is 20 kHz

MOST POPULAR MODELS HIGHLIGHTED!

To Order (Specify Model Number)

Model No. Price Input Type

DP-F31 $620 High level pulse; 3 to 30 Vdc, 20 kHz max
DP-F32 620 High level pulse; 3 to 30 Vdc, 20 kHz max with 4.7 kΩ

pull-up resistors to +5 Vdc for NPN

DP-F33 710 4 to 20 mA, 250 Ω impedance
DP-F33-SQRT 815 4 to 20 mA with square root extraction
DP-F34 710 0 to 5 Vdc; 15 kΩ impedance

Options

Ordering Add'l
Suffix Cost Description

-MA $135 4 to 20 mA analog output, not available with DP-F33-SQRT

-LIN 65 16 point linearization

-220VAC N/C 220 Vac power

-RS232 145 RS232 communications

-RS422 145 RS422 communications

Comes complete with operator’s manual, gasket, 4 mounting ears and screws.
Ordering Examples: DP-F33-RS422 ratemeter/totalizer with 4 to 20 mA input, and RS422

computer communications option, $710 + 145 = $855. OCW-3 OMEGACARESMextends
standard 2-year warranty to a total of 5 years ($177), $855 + 177 = $1032.

DP-F31-LIN, ratemeter/totalizer with 16-point linearization, $620 + 65 = $685.

Recommended Reference Book:

FW-343, $160. Visit omega.com/bobi for Additional Books

M-24

Operating: 0 to 54°C (32 to 130°F)

Storage: -40 to 93°C (-40 to 200°F)
Accuracy: ±0.5% FS
Relay Outputs: 2 SPDT contacts

rated for 10 A at 120/240 Vac or 28 Vdc
4 to 20 mA Output: ±0.5% FS accuracy;

requires 3 to 24 Vdc supply voltage,
non-inductive

OMEGACARESMextended warranty program
is available for models shown on this page.
Ask your sales representative for full details
when placing an order. OMEGACARE
covers parts, labor and equivalent loaners.

Maintenance of Instruments and Systems,

SM

M

One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | [e-mail]

EPG05

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088-466-342

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596-311-899

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Amstelveen, NL
0800-099-33-44

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