Murphy SHD30-45 Automobile Parts User Manual


 
SHD3-97051N 1 of 4
Digital Tach/Hourmeter with Overspeed Trip Point
Installation Instructions for SHD30 and SHD30-45 Models
SHD3-97051N
Revised 05-03
Replaces SHD-96113N
Section 20
(00-02-0288)
Description
The SHD30 and SHD30-45 models are microprocessor-based digital
tachometers with hourmeter and overspeed trip point. The overspeed trip
point can be connected as either a form
“C” relay output or as a normally
open SCR output.
In Class I, Div. 2, hazardous locations the SHD30 form “C” relay contact is
restricted for use with Murphy non-incendive
or intrinsically-safe instruments. In
non-hazardous locations the relay contact may be used to switch resistive loads not
exceeding 0.5 A @ 30 VDC or 125 VAC.
When connected as a normally open SCR, the output is rated 0.5 A, 350 VDC
continuous and can switch up to 3 A @ 350 VDC momentary. The SCR output
may be used to switch designated normally open sensor inputs.
Specifications
Power input:
CD ignition: 90 to 350 VDC. 150 µA typical @ 90 VDC; 300 µA @ 350 VDC.
Magnetic Pickup: 5 to 120 Vrms.
325 µA typical @ 5 Vrms, 100 Hz; 450 µA typical @ 5 Vrms, 1 kHz;
1 mA typical @ 5 Vrms, 5 kHz; 2 mA typical @ 5 Vrms, 10 kHz;
15 mW max. @ 5 Vrms, 10 kHz; 2.8 W max. @ 120 Vrms, 10 kHz.
Backup Battery: 2 replaceable, long life Lithium batteries, Panasonic CR2032
or equivalent, 3 V, 220 mAh power.
Operating Temperature: -4° to 158°F (-20° to 70°C).
Storage Temperature: -40° to 300°F (-40° to 150°C).
Ignition Frequency Range: 3 to 666 Hz.
Magnetic Pickup Frequency Range: 1 to 10 kHz.
Overspeed Output:
Connected to S.C.R. (Silicon Controlled Rectifier) terminals:
0.5 A, 350 VDC continuous.
Connected to Form “C” Relay terminals:
Relay Contact, 0.5 A, 30 VDC, 125 VAC resistive.
Tachometer Accuracy: ±0.5% of the display reading or ±1 RPM
whichever is greater.
Hourmeter Range: 0 to 65535 hrs.
Hourmeter Accuracy: ±15 minutes per year.
Approvals: CSA approved for Cl. I, Div. 2, Grps. C & D hazardous areas.
Mounting
The SHD30 is designed for installation in panels from 0.032 to 0.125 in. (1 to
3 mm) thick. A round hole, 3-1/8 in. (79 mm) in diameter is needed for
mounting. Install the unit within a weatherproof enclosure to protect it from
the elements. Keep the unit away from ignition coils and coil leads; a mini-
mum of 12 in. (305 mm) is recommended.
Please read the following information before installing. A visual inspection for any damage which may have occurred during shipping is
recommended. It is your responsibility to have a qualified person install the unit, and make sure it conforms with NEC and local codes.
GENERAL INFORMATION
panel
gasket
Terminal
Blocks
4-1/4 in.
(108 mm)
5-1/16 in.
(129 mm)
1-9/32 in.
(33 mm)
2 in.
(51 mm)
2 in.
(51 mm)
1-1/2 in.
(38 mm)
2 in.
(51 mm)
3/16 in
(5 mm)
diameter,
4 places
3-1/8 in.
(79 mm)
diameter
WARNING
BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT
Disconnect all electrical power to the machine.
Make sure the machine cannot operate during installation.
Follow all safety warnings of the machine manufacturer.
Read and follow all installation instructions.
SHD30 Dimensions
SHD30-45 Dimensions/Mounting
Mounting Hole
Approved for Class I, Division 2,
Groups C & D Hazardous Areas
When installed per Murphy
Drawing 20-08-0258
C US
SCR = 0.5A,
A,
300Vd
Vd
c
CD IGN 90-300Vd
Vd
c TYP:
YP:
150uA
A
@
@
90Vd
Vd
c; 600uA @
@
300Vd
Vd
c
MPU
PU
5Va
Va
c-120Vac TYP
YP
: 325uA
A
@ 5Vac,100Hz; 450uA@
A@
5Va
Va
c 1kHz;
15mw MAX
X
@ 5Vac,10kHz; 2.8W MAX
AX
@
@
120Va
Va
c, 10kHz
INSTALLE CONFORMEMENT MURPHY 20-08-0258
MUST BE INSTALLED PER MURPHY DWG. 20-08-0258
1mA
A
@
@
5Va
Va
c,5kHz; 2mA
A
@ 5Vac,10kHz;
OUTPUT REL
EL
AY
AY
= 0.5A, 30Vd
Vd
c, 125Vd
Vd
c res
4-1/4 in.
(108 mm)
5-1/16 in.
(129 mm)
5-13/16 in.
(148 mm )
1-5/16 in.
(33 mm )
1/2 in.
(12 mm )
KEPS Nuts
(3 Supplied)
Ø6-1/2 in.
5-13/16 in.
(148 mm )
Ø5-13/64 in.
1/4 in. (6 mm ) dia. holes
(3 places)
Front View
Rear View
Side View