Dwyer Instruments TAC-L Series Installation And Operating Instructions

']) u, y e r.
Series TAC-L Photo/Contact Digital Tachometer
Specifications - Installation and Operating Instructions
MODEL TAC·L Portable Digital Tachometer measures rotational speed either by
contacting a rotatable head to the shan of the object, or using photo sensor to detect
the reflections from the laser. The laser target can record from a distance of up to 20
inches and gives a more accurate measurement than LED targeting. Model TAC-L
includes a large LCD with a backlight for use in dark areas. This tachOmeter is made
of a strong, lightweight ABS plastic housing, which is designed to comfortably fit in the
hand of the user. Supplied with this model are 3 contact rotational heads, a contact
surface wheel, and a protective carrying
PRODUCT OVERVIEW
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A. Surface speed wheel
C. Contact measuring device
E. Function switch
G. Display
NON-CONTACT MEASURING (RPM)
1. Apply a reflective mark to the object being measured.
m photo· and remove the
2. Slide the function switch to ·
rp
3. Depress the measuring button and align the visible light beam with the applied
target Verify that the monitor indicator lights when the target aligns with the
- In the case of measuring low RPM values with the non-contact
laser. it is suggested that the u ser attach more reflective marks
an average distance apart on the object,
accurate measurement. The user then must divide the reading shown by the number
of reflective marks to find the true RPM.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
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case.
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Figure 1
B. Contact test device
D. Measuring button
F. Memory button
H. Battery cover
cap.
then measure as above, giVing a more
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SPECIFICATIONS
Accuracy: ±(0.05% + 1 digit).
Display: Backlit LCD; 5 digits, 7 segments,
Range: Non-contact (RPM): 2.5 to 99,999 RPM; Contact (RPM): 0.5 to 19,999
RPM; Surface Speed (m/min): 0.05 to 1999.9
Resolution: Non-contact (RPM):
99,999 RPM); Contact (RPM): 0.1 RPM (0.5 to 999.9 RPM), 1 RPM (1000 to 19,999
RPM); Surface Speed (m/min) O.D1 m/min (0.05 to 99.99 m/min). 0.1 m/min (1
to 1999.9 m/min).
Non-contact Measuring Distance Range: 2 to 20· (5 to 50 cm).
Sampling Time: 0.8 s.
Temperature Limits: 32 to 122
Power Requirements: (4) 1.5 V AA alkaline batteries.
Weiaht: 1.37 lb (.620 ka).
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Bulletin TE-TAC-L
$
RING ATTACHMENT
RPM ADAPTER FITTING
(ATTACHED TO UNIT)
CYLINDRICAL CONTACT
61/4
ROTATIONAL FITTING
(159.96)
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SMALL POINTED CONTACT
ROTATIONAL FITTING
LARGE POINTED CONTACT
1 318
ROTATIONAL FITTINGS
(34 . 05)
(ATTACHED TO UNIT)
O.T (1.8 cm) H.
m/min.
0.1 RPM (2.5 to 999.9 RPM), 1 RPM (1000 to
° °
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SURFACE SPEED
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