NorthStar SLIM Tach
®
SL85 Instruction Manual
4
©
DYNAPAR +1.800.873.8731
1.1 General
These instructions do not claim to cover all details of variation in equipment or to provide for every possible contingency or
hazard to be met in connection with installation, operation, and service. Should further information be desired or should
particular problems arise which are not covered sufficiently for the purchaser’s purposes, please contact Dynapar, or one of
its designated representatives.
1.2 Description
The NorthStar SLIM Tach
®
SL85 is a modular digital encoder. This magnetoresistive encoder sensor-based unit was
designed for fast, easy mounting onto a standard NEMA 8.5 inch motor face. The basic design philosophy follows. The
encoder frame is mounted onto the C-Face flange of a motor. This positions the sensor and contains the electronics. The
magnetic pulse wheel on the motor shaft has magnetic pulses imprinted on its outside surface. As the motor spins, the
passing magnetic pulses actuate the magnetoresistive sensor. The resulting electronic signals are processed into square wave
signals by the internal electronics.
Figure 1: SLIM Tach
®
SL85 Thru-Shaft Exploded View w/ Spare Parts (Shown w/ Optional Tower)
Enclosure:
S850512SCCNSE
S8501024DCECSE
Standard Cover
:
S85-COVER-ST
Pie Pan Cover
:
S85-COVER-PP
Through-Hole Cover
:
S85-COVER-TH
Pulse Wheel:
S850512 ?? SW
S850512Z ?? SW
S8501024 ?? SW
S8501024Z ?? SW
0.625” = J04
Clamp
0.875” = J05
Style
0.9375” = J21
1.000” = J06
1.125” = J07
1.250” = J08
0.9375” = J22
1.375” = J09
1.500” = J10
1.625” = J11
1.750” = J12
Set
1.875” = J13
Screw
2.000” = J14
Style
2.125” = J15
2.250” = J16
2.375” = J17
2.500” = J18
2.625” = J20
2.875” = J19
3.000” = J23
Thru Shaft Size
Optional Tower
½” – 13 UNC
Socket Head Screws
Connector Hood:
Slim-C01
NOTE:
If you have further questions, please call Dynapar customer service (614) 818-1150+ext. 282 or 278 with serial number ready.