SELECTRONIC Tachometer/TACHSWICH DT9800 Series
DT-8603B
Revised 03-97
Catalog Section 20
®
FRANK W.
MFR.
(00-02-0066)
d
SELECTRONIC® Tachometer/TACHSWICH™
ue
DT9800 Series
■ Read RPM Data from Magnetic Pickup
*
ila
*
ili
co
ty
nt
b in
or CD ignition
■ No External Power Required
■ Accurate to ±1 RPM
■ Easy-to-Read LCD Display
■ Choose Tachometer Only Or a
Tachometer With Overspeed Switch
• Industrial Engines
• Generator Sets
• Compressors
• Oil Field Equipment
• Marine
C
The DT9803 and DT9804 are tachometeronly models. The DT9803 is powered by a
magnetic pickup. The DT9804 is powered
by a CD ignition.
The DT9805 and DT9806, combine a digital
tachometer and overspeed switch. The
DT9805 is powered by a magnetic pickup
and the DT9806 is powered by a CD ignition.
fo
r
• Vehicles
• Farm Equipment
• Construction
Equipment
Calibrating and Setting
Overspeed Switches
ck
ro
d
he u
c
t
The Digital SELECTRONIC® DT9800 series
features a tachometer-only and tachometer
with built-in overspeed switch. These
tachometers are highly accurate and dependable due to digital solid-state electronics and
a quartz crystal time base. The surfacemount enclosure makes it easy to install.
Tachometer power and RPM data are supplied by a magnetic pickup or capacitor discharge (CD) ignition–depending on model
chosen. The RPM data is converted and displayed on a four digit, easy-to-read liquid
crystal display (LCD). The LCD displays up
to 9999 RPM.
D
Applications
Description
P
A
va
is
®
The DT9800 series is calibrated to your
engine by setting a series of calibration “rocker” switches. The switch setting is determined
by the number of ring gear teeth and proper
selection of the calibration code–located in the
DT9800 series installation instructions.
Overspeed switches are set by adjusting rotary
dials to the appropriate RPM number.
Overspeed can be set from 0010 to 9990
RPM within ± 5 RPM. Overspeed switches
are available on DT9805 and DT9806 models only. The overspeed switches and calibration rocker switches are accessed from
the back of the tachometer.
Specifications
Input Signal Source
DT9803: 18 to 112 volts peak to peak or
3.5 to 40 Vrms.
DT9805: 18 to 112 volts peak to peak or
7 to 40 Vrms.
DT9804 and DT9806: 90 to 400 VDC,
CD ignition.
Temperature Range
-4 to 158°F (-20 to 70°C).
Case Dimensions: see reverse side.
Accuracy: ±1 RPM.
Frequency Range:
DT9803 and DT9805: 1 to 15 KHz.
DT9804 and DT9806: 3 to 666 Hz.
Overspeed Switch (DT9805 and DT9806):
S.C.R. output. Rated 5 A @ 400 VDC.
Shipping Weights (all models): 1lb (.5 kg)
Shipping Dimensions (all models)
9-1/4 x 8-1/4 x 5-1/4 in.
(235 x 210 x 133 mm)
* Class I, Div. 2, Group D Hazardous Locations. Models DT9803
and DT9805 magnetic pickup powered 18 to 112 Vpp input.
Models DT9804 and DT9806 used with CD ignition. Contact
Murphy for details.
The equipment must be installed in a suitable enclosure accepted
by local authorities.
Magnetic Pickup
Dimensions
Murphy offers magnetic pickups
sold separately.
5-1/16 in.
(129 mm)
d
1-9/32 in.
(33 mm)
Total
Length††
Threaded
Length††
Thread
Size
MP3298
MP7906
MP7905
3 (76)
3 (76)
4-1/2 (114)
3 (76)
3 (76)
4-1/2 (114)
5/8-18 UNF
ue
Pickup
Models†
4-1/4 in.
(108 mm)
3/4-16 UNF
nt
b in
3/4-16 UNF
ila
A
va
78
78
456
ck
456
X 100
901
78
78
78
78
D
fo
r
456
t
456
d
he u
c
4 in.
(102 mm)
2 in.
(51 mm)
2 in.
(51 mm)
3-1/2 in.
(89 mm)
3/16 in (5 mm)
diameter, 4 places
23
X 1000
901
23
23
ro
901
23
23
901
Mounting Hole
3-1/8 in.
(79 mm)
diameter
456
901
456
901
A two-year limited warranty on materials
and workmanship is given with this
Murphy product. Details are available on
request and are packed with each unit.
P
OPEN
23
Options
EX = Explosion-proof
Warranty
Back of
DT9800
Series
is
DT9805 - __
1 2 3 4 5 6 7 8 9 10 11 12
co
When ordering DT9800 series tachometers specify model number and options
(if apply).
ili
Calibration rocker switches
How to Order
Models
DT9803
DT9804
DT9805
DT9806
ty
†Magnetic pickups have lead wire hookups.
††Lengths are in inches and (millimeters).
X 10
Overspeed switch (DT9805 and DT9806 only).
Switch shown set at 1850 RPM.
C
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
®
FRANK W.
Since 1939
MFR.
■ Frank W. Murphy Manufacturer
P.O. Box 470248; Tulsa, Oklahoma 74147; USA
tel. (918) 627-3550 fax (918) 664-6146
e-mail [email protected]
■ Frank W. Murphy Southern Division
P.O. Box 1819; Rosenberg, Texas 77471; USA
tel. (281) 342-0297 fax (281) 341-6006
e-mail [email protected]
Printed in U.S.A.
■ Frank W. Murphy, Ltd.
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
tel. +44 1722 410055 fax +44 1722 410088 tlx 477088
e-mail [email protected]
■ Frank W. Murphy Pte., Ltd.
No. 2 Tuas South Street 2, Sprintecs Bldg., #02-01/02
Singapore 638042
tel. +65 863-1398 fax +65 863-0208
e-mail [email protected]
■ Murphek Pty., Ltd.
1620 Hume Highway; Campbellfield, Vic 3061; Australia
tel. +61 3 9358-5555 fax +61 3 9358-5558
e-mail [email protected]
■ Murphy de México, S.A. de C.V.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
tel. +52-48-206264 fax +52-48-206336
e-mail [email protected]
■ Murphy Switch of California
P.O. Box 900788; Palmdale, California 93590; USA
tel. (805) 272-4700 fax (805) 947-7570
e-mail [email protected]
■ Frank W. Murphy France
tel. +33 1 30 762626 fax +33 1 30 763989
046490
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement