H-38-11 Bourns Inc., H-38-11 Datasheet - Page 35

• Manufacturer Part Number: H-38-11
• Description: HDWR NUT MOUNTING FOR ECW ENCODR
• Manufacturer: Bourns Inc.
• Type: Mounting Nutr
• Series: Hr

Specifications of H-38-11

• Mounting Hole Size: 9 mm
• Features: Hardware indicated by shaded area is normally supplied with unit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: ECW1DB24BC0024 - ENCODER DIGITAL CONT 24 CPRECW1JB24BC0024 - ENCODER DIGITAL CONT 24 CPR
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

34
Application Notes
Amplifier Gain
A panel control can be used as a gain
control in an op-amp circuit. The gain is
determined by the resistance ratio A =
RFB / RIN. See Figure 19.
Figure 19: Amplifier Gain Circuit
Technology
technologies are
ranked 1 to 2; 1
Encoder
2
2
2
2
2
1
2
1
Element
is best
1
1
1
1
1
2
1
2
Operating Speed (RPM)
Operating Temperature
Characteristics
Storage Temperature
Contact Resistance
Moisture Stability
Resolution (PPR)
Rotational Life
Relative Price
Encoders
H
H
M
M
M
H
H
Characteristic importance factors:
L=Low, M=Moderate, H=High
Typical Applications
M
M
M
H
H
H
H
M
M
H
H
H
H
H
M
M
M
H
L
L
L
Encoders
Performance Characteristics
Operating Temperature
Operating temperature refers to the temperature
range at which the encoder can be dynamically
operated while remaining within specifications.
Contacting encoders typically have a much wider
operating temperature range than optical encoders.
Contact Resistance
Contact resistance refers to the resistance between
contacting mechanical parts used to create the digital
output signal. Low contact resistance is desirable in
most applications. Encoders constructed from non-
contacting technology do not have contact
resistance.
Resolution
Resolution refers to the number of electrical pulses
per shaft revolution that an encoder produces as a
digital output signal. Incremental and absolute
contacting encoders are generally limited to low
resolutions depending on the materials used in their
construction. Optical encoders have a much higher
resolution in comparable package sizes.
M
M
M
M
H
H
H
Table 4 lists the important
performance characteristics of
encoders with a technology guide
along with typical applications that
will be encountered.
Table 4: Performance Characteristics of
Encoders