Red Lion ZMH - HEAVY DUTY - Manual

11
MODEL ZMH - HEAVY DUTY LENGTH SENSOR
DESCRIPTION
Designed for heavy duty sensing applications, the Heavy Duty Length
Sensor, Model ZMH, is versatile and easy-to-use.
It features a built-in spring-loaded torsion arm that provides a simple-to-
adjust torsion load, allowing the unit to be mounted in almost any orientation,
including upside down. Using a properly selected wheel, the ZMH can be used
on almost any surface, while operating at speeds up to 3000 feet per minute.
Whether you need to measure speed, position, or distances, the Model ZMH is
the ideal solution.
Open Collector Output Wiring
The ZMH 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.
ORDERING INFORMATION
MODEL NO. DESCRIPTION PPR PART NUMBER
ZMH *
Heavy Duty Length Sensor
with Quadrature Output
250 ZMH0250B
500 ZMH0500B
1000 ZMH1000B
2000 ZMH2000B
2500 ZMH2500B
MBZM
Mounting Bracket and Shaft N/A MBZM0001
Double Wheel Pivot Mount and Shaft N/A MBZM0002
* Mounting shaft not included.
LENGTH SENSOR MEASUREMENT ACCURACY
Factors which affect measurement accuracy include Measuring Wheel
accuracy and wear, and material conditions. Ideally, materials which are hard,
thin and strong provide good readings, conversely, soft, thick and elastic
materials can present problems in obtaining true readings. Where this effect is
consistant, Counter or Rate Indicators with “input scaling” can compensate for
Measuring Wheel wear and material elastic and compliance errors. In addition,
English/Metric conversions may also be accomplished.
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.
SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
1. INPUT VOLTAGE: 4.75 to 28 VDC.
2. INPUT CURRENT: 100 mA max (65 mA typical) with no output load
3. OUTPUTS: NPN Open Collector Transistor, V
OH
= 30 VDC max.; 20 mA
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
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
6. SYMMETRY: 180º (±18º) electrical
CAUTION: Read complete
instructions prior to installation
and operation of the unit.
CAUTION: Risk of electric shock.
Bulletin No. ZMH-A
Drawing No. LP0845
Released 03/14
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
5.25 (133.4)
6.25 (158.8)
3.85 (97.8)
5.00 (127.0)
FOR MOUNTING ON
A ø0.625 SHAFT
1/2-20, .500"
DEEP
A LEADS B FOR
CW ROTATION
12" CIRC.
WHEEL SHOWN
+0.000
-0.005
2.50 (63.5)
BODY DIA. 5/32" HEX SOCKET
FOR SHAFT CLAMP
2.75
(69.9)
ш0.375
(ш9.53)
SHAFT
DIMENSIONS In inches (mm)
Note: All dimensions are in inches with a tolerance of +0.01" unless otherwise specified.
 HEAVY DUTY INDUSTRIAL CONSTRUCTION
 QUADRATURE OUTPUT
 BUILT-IN SPRING TENSIONING
 VERTICAL, HORIZONTAL, OR UPSIDE-DOWN MOUNTING
 EASY INSTALLATION
 VARIOUS MEASURING WHEELS AVAILABLE
 VARIOUS MOUNTING CONFIGURATIONS