Wilkerson Instrument DM7010 Data sheet

DM7010

FREQUENCY INPUT
FIELD RANGEABLE ISOLATED TRANSMITTER

DESCRIPTION

The DM7010 is a field rangeable
frequency input signal conditioner. It
provides several choices of voltage or
current ouputs proportional to the
frequency of the input. A Normal - Reverse
selection is available which reverses the
output signal logic (ie 20 - 4mA vs 4 ­20mA). The input is galvanically isolated
from the output and power source.

Response time can be set by the user with
a selection of jumpers on the front panel.

SPECIFICATIONS

INPUT

Frequency Range

10 Hz to 50 kHz

Impedance

100,000 ohms

Coupling

AC

Voltage range

50 mV to 700 V p-p

Span Select

(User settable)
12, 25, 50, 100, 200, 400, 800, 1600,
3200, 6400, 12500, 25000 and
50000 Hz

Span adjustment

+5%, -55% of selected span

Zero adjustment

±30% of selected span

Offsets

(User settable)
None

Pull-Up Resistor

4.7 kilohm (+5 VDC)

OUTPUT

Modes

Normal/
Reverse Acting

FEATURES

· Spans from 10 Hz to 50 KHz

· Selectable Response
Time & Filter

· Plug-In Terminal Blocks

· Standard DIN-Rail Mount with
Easy Snap-On Snap-Off

· User-Settable Input and
Output Ranges

The wide input voltage range allows the
product to be used with low level magnetic
pickups, for flow or speed applications, as
well as digital signals or direct power line
monitoring.

A selectable pull-up resistor allows the
product to be driven from a switch closure
or open collector transistor. It will also
accept CMOS or TTL digital inputs.

The DM7010 is housed in an aluminum
case with a stainless steel DIN rail mount.

Range

(User settable)
0/.25, 0/1, 0/5, 0/10, -5/5,
& -10/10 VDC
0/1, 0/4, 0/20, & 4/20 mAdc

Accuracy

0.1% of span

Step response time

see FILTER CAPACITOR

SELECTION CHART

Ripple

(peak-to- peak)
see FILTER CAPACITOR

SELECTION CHART

Input to Output Linearity

±0.01% of span

COMMON MODE REJECTION

120 dB DC to 60 Hz

ISOLATION, OUTPUT / INPUT

>500 megohms

BREAKDOWN, OUTPUT TO INPUT

>1000 volts RMS sinewave

BREAKDOWN, POWER CIRCUITRY

>1500 volts RMS sinewave

OPERATING TEMPERATURE

-13° to 140°F
(-25° to 60°C)

TEMPERATURE STABILITY

±(0.01% of span)/°C

FREQUENCY

SETTING

HERTZ

1600 0.1 5 0.047 2.4

3200 0.047 2.4 0.047 2.4

6400 0.047 2.4 0.01 0.5

12500 0.01 0.5 0.0047 0.24

25000 0.01 0.5 0.0047 0.24

50000 0.0047 0.24 0.001 0.05

· Fully Labeled Jumper
Positions for Easy Range
Settings

· User Write-On Label

· Connections and Ranging
Readily Accessible from the
Front

· Choice of Power Options

· Permanent Warranty

The terminals on the front are pluggable,
for ease in wiring. The snap-on front cover
has a write-on label.

Several power input options are available.
TYPICAL APPLICATIONS
Typical applications for the DM7010 are

monitoring flow, conveyor speed, power
line frequency on portable generators,
and motor rotation speed.

POWER

Wattage

2.5 W max

AC Options

115 VAC ±10%, 50/60 Hz
230 VAC ±10%, 50/60 Hz
24 VAC ±10%, 50/60 Hz

DC Options

12 VDC nominal
(10 to 15 VDC)
24 VDC nominal
(21 to 28 VDC)

FILTER CAPACITOR SELECTION CHART

MINIMUM CAPACITOR*

SPAN

12 2.2 110 1.0 50

25 2.2 110 1.0 50

50 1.0 50 0.47 24

100 1.0 50 0.47 24

200 0.47 24 0.47 24

400 0.47 24 1.0 5

800 0.47 24 0.047 2.4

SETTING FOR LESS THAN

0.1% RIPPLE PEAK-PEAK

CAPACITOR

(uF)

RESPONSE

TO 99%

(*SEC) **

MINIMUM CAPACITOR*

SETTING FOR LESS THAN

0.5% RIPPLE PEAK-PEAK
CAPACITOR

(uF)

RESPONSE

TO 99%

(*SEC) **

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DM7010

ORDERING
INFORMATION

Wilkerson Instrument Co., Inc. Copy and Fax to Place Order.

POWER

115 VAC, 50/60 Hz Power
230 VAC, 50/60 Hz Power
24 VAC, 50/60 Hz Power
24 VDC Power Transformer Isolated
12 VDC Power Transformer Isolated

INPUT
Select Units

Hz KHz

Enter Input

Full Scale

OUTPUT
Select Units

VDC mADC

Enter Output

Zero Scale
Full Scale

ACCESSORIES

Select Output Logic

Normal Acting
Reverse Acting

OPTIONS

Conformal Coating

TAGS

Specify Tag Numbers
Tag number is typed on product
label at no charge.

Enter Tag Number(s)

DM7010

DR 1 DIN-Rail, 35 mm Symmetrical, 39 inches (1 meter) QTY _____

DIMENSIONS

Inches [mm]

CONNECTIONS

Input + Input +
Input - Input ­SHLD Shield
TERM 4 No Connection
Output + Output +
Output - Output ­TERM L1 + Power AC L1 or DC +
TERM L2 - Power AC L2 or DC -

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