Murphy Electric Gage and Swichgage Manual Do Utilizador
Sharper Accuracy. Higher Durability. Advanced
Technology.
The EG21 Series Electric Gage and the EGS21 Series Swichgage instrument take the electric gage to new
heights with proven state of the art technology and reliability.
Electric Swichgage instrument
The EGS21 Series Swichgage instrument has all of the features of the EG21 Series Gage plus an adjustable
set point PowerHall
®
Effect switch output for operating alarms or equipment shutdown. The trip point is
adjustable over 90% of the scale and has a set point indicator visible from the gage face. Now you can have
both, the ease of electric gage installation and the reliable switching of Murphy’s famous Swichgage instrument.
2-1/4 in.
(57 mm)
1-15/16 in. (49 mm)
1-15/16 in.
(49 mm)
2-1/2 in. (64 mm) clearance for adjustment / Wiring
3/4 in. (19 mm) max. Panel Thickness.
Reflective
Mirror Band
Mirror Band
2-1/16 in. (52 mm)
Mounting hole diameter.
Mounting hole diameter.
SWICHGAGE
®
Contact
Adjustment, 1/16 in. hex
SWICHGAGE
®
Adjustable Contact Indicator
Push-on Plug and Wire Leads
18 AWG (1.0 mm
18 AWG (1.0 mm
2
); 8 in. long (203 mm)
Mounting
Clamp
Clamp
kPa
PSI
50
75
100
0
0
25
350
700
Specifications
P
Po
ow
we
err IIn
np
pu
utt,, a
allll m
mo
od
de
ells
s a
an
nd
d s
se
en
nd
de
err:: 12 VDC or 24 VDC.
C
Ca
as
se
e:: Polyester (PBT), impact and weather resistant with screw-on mounting clamp.
B
Be
ezze
ell:: Polished 316 stainless steel standard; available in black. SAE style optional.
L
Le
en
ns
s:: Clear Polycarbonate and UV stabilized.
A
Aiirr C
Co
orre
e M
Mo
ov
ve
em
me
en
ntt:: Silicon dampened pointer.
D
Diia
all:: Black with white markings; back-lite (marking becomes red when illuminated);
dual scale with mirror band to reduce parallax reading errors.
S
Sw
wiic
ch
hg
ga
ag
ge
e iin
ns
sttrru
um
me
en
ntt S
Se
en
ns
so
orr:: PowerHall
®
Effect; outputs ground signal (sinking output) rated:
300 mA continuous (EGS21 models). Pressure, Fuel, Volts set on decreasing scale.
Temperature and Amps set on increasing scale. Output saturation voltage (voltage drop
across switch): 1.3-2.3 Volts @ 25°C (may require some conditioning to work with logic inputs)
S
Sw
wiic
ch
hg
ga
ag
ge
e iin
ns
sttrru
um
me
en
ntt S
Se
ett P
Po
oiin
ntt IIn
nd
diic
ca
atto
orr:: Visible on mirror band (scale);
adjustable from the back of the unit (1/16 in. hex type wrench).
W
Wiirriin
ng
g:: Plug connector with wire leads, 18 AWG (1.0 mm
2
), 8 in. (203 mm) long.
O
Op
pe
erra
attiin
ng
g T
Te
em
mp
pe
erra
attu
urre
e:: -40 to 185°F (-40 to +85°C).
S
Stto
orra
ag
ge
e T
Te
em
mp
pe
erra
attu
urre
e:: -77 to 185°F (-60 to 85°C).
O
Ov
ve
err V
Vo
olltta
ag
ge
e ((G
Ga
ag
ge
e M
Mo
ov
ve
em
me
en
ntt)):: Withstands 200% of nominal system voltage for 5 min. Meets SAE J1810.
R
Re
ev
ve
errs
se
ed
d P
Po
olla
arriitty
y ((G
Ga
ag
ge
e M
Mo
ov
ve
em
me
en
ntt)):: Withstands reversed battery terminal polarity indefinitely within
operating temperatures.
E
En
nv
viirro
on
nm
me
en
ntt a
an
nd
d T
Te
es
stt:: Meets SAE J1810 standards.
PowerHall
®
is a registered trademark of Allegro MicroSystems, Inc.
Dimensions
▼
EG Air Core movement design
▼
Technological improvements in lighting,
accuracy in reading and wiring installation
▼
Assurance of highest reliability and service
▼
Environmentally sealed design
▼
Exceeds the rigid SAE J1810 standard
▼
Corrosion-resistant materials
.
▼
Desirable for marine and other environmentally
sensitive applications
▼
Soft, non-glare dial and pointer illumination
by “cold light” LED.