Red Lion ZMD User Manual

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6.000 CIRCUMFERENCE (ordered separately)
Metric wheel available

"L"
SIDE

Ø0.2498 (Ø5.995)

1/4-20 or M6 THREADS AVAILABLE
SHAFT CAN BE REVERSED FOR
MOUNTING FROM EITHER SIDE

"R"
SIDE

CABLE LENGTH
2 meter STANDARD

TORQUE ADJUSTMENT
UNDER RUBBER CAP

Ø

1.71 (43.4)

1.00 (25.3)

1.3 (33)
TYPICAL

0.740 (18.8)

0.100 (2.54)

"R" SIDE

0.60 (15.2)

0.50 (12.6)

0.24 (6)

"L" SIDE

3.13 (79.6)

2.500 (63.5)

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MODEL ZMD – MINIATURE LENGTH SENSOR

(Replaces MODEL LSM)

 COMPACT SIZE
 QUADRATURE OUTPUT



BUILT-IN SPRING TENSIONING

 VERTICAL, HORIZONTAL, OR UPSIDE-DOWN MOUNTING
 REDUCES INSTALLATION TIME
 VARIOUS MEASURING WHEELS AVAILABLE

Bulletin No. ZMD-B
Drawing No. LP0733
Released 07/12

DESCRIPTION

Designed for light to medium duty sensing applications, the Miniature Length

Sensor, Model ZMD, is compact in size and easy-to-use.

It features a built-in spring-loaded torsion arm that provides a simple-to­adjust torsion load, allowing the unit to be mounted in almost any orientation,
including upside down. Using a 6" or 200 mm wheel, the ZMD can be used on
almost any surface, while operating at speeds up to 3000 feet per minute. The
housing is a durable, conductive composite material that will eliminate static
build up. Whether you need to measure speed, position, or distances, the Model
ZMD is the ideal solution. For other pulse rates and/or wiring configurations,
contact the factory for further details.

Open Collector Output Wiring

The ZMD sensors have open collector outputs. An open collector output
brings the uncommitted collector of the encoder switching device to the external
world. Because the collector element is not associated with the sensor supply
voltage, the sensor output collector may be “pulled up” to external voltages
different than the encoder supply voltage (30 VDC maximum). NPN open
collector outputs are current sinking devices. An output signal will not be
generated unless a pull-up resistor is connected from the open-collector to the
positive side of an external supply. The same supply can be used for powering
the unit and for the pull-up resistor.

SAFETY SUMMARY

All safety related regulations, local codes and instructions that appear in the
literature or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.

CAUTION: Read complete

instructions prior to installation

and operation of the unit.

CAUTION: Risk of electric shock.

SPECIFICATIONS

ELECTRICAL SPECIFICATIONS

1. INPUT VOLTAGE: 4.75 to 28 VDC max for temperatures up to 85ºC; 4.75

to 24 VDC for temperatures between 85ºC to 100ºC, reverse polarity
protected.

2. INPUT CURRENT: 100 mA max (65 mA typical) with no output load

3. OUTPUTS: NPN Open Collector Transistor, V

max. current. Incremental - Two square waves in quadrature with A leading
B for clockwise rotation, as viewed from the wheel side.

4. MAX FREQUENCY: 200 KHz standard

5. NOISE IMMUNITY: Tested to BS EN61000-6-2; BS EN50081-2; BS

EN61000-4-2; BS EN61000-4-3; BS EN61000-4-6, BS EN500811 (Tested
with 2 meter cable)

6. SYMMETRY: 180º (±18º) electrical

7. QUAD. PHASING: 90º (±22.5º) electrical

8. MIN. EDGE SEP: 67.5º electrical

9. ACCURACY: Within 0.017º mechanical or 1 arc-minute from true position.

(for PPR>189)

MECHANICAL SPECIFICATIONS

1. MAXIMUM MECHANICAL SPEED: 6000 RPM. Higher speeds may be

achievable, contact the factory.

2. SHAFT MATERIAL: Stainless Steel

3. SHAFT TOLERANCE: +0.0000/-0.0004" (+0.000/-0.010 mm)

4. RADIAL SHAFT LOAD: 5 lb. max. Rated load of 2 to 3 lb for bearing life

of 1.2 x 10

5. AXIAL SHAFT LOAD: 5 lb. max. Rated load of 2 to 3 lb for bearing life of

1.2 x 10 10 revolutions

6. STARTING TORQUE: 0.05 oz-in

7. ELECTRICAL CONNECTION: 2 meter Cable, (foil and braid shield, 24

AWG conductors). Drain wire internally connected to case.

10

revolutions

FUNCTION CABLE WIRE COLOR

+VDC Red

Com Black

A White
B Green

Shield Bare

= 30 VDC max.; 20 mA

OH

DIMENSIONS In inches (mm)

1

Tolerance: x.xxx" = ±0.005"
x.xx" = ±0.01"

8. MOUNTING: Pivot Shaft can be mounted from either side of the housing

2.00

1.00

1.75

R.14

1.00

.25

1.81

R.0 93

(44.45)

(50.8)

(25.4)

(6.35)

(44.45)

(25.4)

1.75

1.25 (31.75)

.75 (19.05)

.125 (3.175)

(45.97)

and is field reversible.

9. HOUSING: Stainless steel fibers in a high temperature nylon composite

10. WEIGHT: 5 oz typical

ENVIRONMENTAL SPECIFICATIONS

1. OPERATING TEMPERATURE: -20°C to 85°C

2. STORAGE TEMPERATURE: -25°C to +85°C

3. HUMIDITY: 98% RH non-condensing

4. VIBRATION: 10 g @ 58 to 500 Hz

5. SHOCK: 80 g @ 11 msec duration

6. SEALING: IP50

ORDERING INFORMATION

MODEL NO.

ACCESSORIES

DESCRIPTION PPR PART NUMBER

250 ZMD0250B

500 ZMD0500B
1000
2000
2500

ZMD

Miniature Length Sensor

with Quadrature Output

Do not dispose of unit in trash - Recycle

ZMD1000B
ZMD2000B
ZMD2500B

MOUNTING BRACKET

This accessory angle mounting bracket allows for a
variety of mounting positions and makes installation of
the ZMD even easier.

DIMENSIONS In inches (mm)

PART NUMBERDESCRIPTION

Mounting Bracket
Urethane (6" Circumference) Wheel

Urethane (200 mm Circumference) Wheel

Only factory stocked part numbers are listed. Consult the factory for part number
and availability of other PPR and output configurations.

The Company warrants the products it manufactures against defects in materials and workmanship
for a period limited to two years from the date of shipment, provided the products have been stored,
handled, installed, and used under proper conditions. The Company’s liability under this limited
warranty shall extend only to the repair or replacement of a defective product, at The Company’s
option. The Company disclaims all liability for any affirmation, promise or representation with
respect to the products.

The customer agrees to hold Red Lion Controls harmless from, defend, and indemnify RLC against
damages, claims, and expenses arising out of subsequent sales of RLC products or products
containing components manufactured by RLC and based upon personal injuries, deaths, property
damage, lost profits, and other matters which Buyer, its employees, or sub-contractors are or may be
to any extent liable, including without limitation penalties imposed by the Consumer Product Safety
Act (P.L. 92-573) and liability imposed upon any person pursuant to the Magnuson-Moss Warranty
Act (P.L. 93-637), as now in effect or as amended hereafter.

No warranties expressed or implied are created with respect to The Company’s products except those
expressly contained herein. The Customer acknowledges the disclaimers and limitations contained
herein and relies on no other warranties or affirmations.

NL - 3821 AD Amersfoort

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Red Lion Controls
Headquarters
20 Willow Springs Circle
York PA 17406
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RPGMB002

WI0006OF

WI0006OKKnurled (6" Circumference) Wheel
WM0200OF
WM0200OKKnurled (200 mm Circumference) Wheel

Red Lion Controls

Europe

Printerweg 10

LIMITED WARRANTY

Red Lion Controls

54, Vishvas Tenement

GST Road, New Ranip,

Ahmedabad-382480 Gujarat, India

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India

Red Lion Controls

China

Unit 101, XinAn Plaza

Building 13, No.99 Tianzhou Road

ShangHai, P.R. China 200223

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