Inficon VGC031 User manual

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2tinb25e1 (2016-04)
Product Identification
In all communications with INFICON, please specify the infor-
mation given on the product nameplate. For convenient refer-
ence copy that information into the space provided below.
Validity
This document applies to products with part number
399-570
The part number (PN) can be taken from the product nameplate.
If your unit does not work as described in this document, please
check that it is equipped with the above firmware version
(→30).
We reserve the right to make technical changes without prior
notice.
Important User Information
There are operational characteristic differences between solid
state equipment and electromechanical equipment. Because of
these differences, and because there are a variety of uses for
solid state equipment, all persons that apply this equipment must
take every precaution and satisfy themselves that the intended
application of this equipment is safe and used in an acceptable
manner.
In no event will INFICON be responsible or liable for indirect or
consequential damages that result from the use or application of
this equipment.

tinb25e1 (2016-04)
Any examples
solely for illust
r
and requireme
INFICON can
n
use based on
t
No patent liabi
information cir
c
manual.
Throughout thi
nationally reco
you aware of
s
Identifies infor
m
cause electric
a
taken, could r
e
or economic l
o
Identifies infor
m
cause electric
a
taken, could r
e
or economic l
o
C
A
N
O
or diagrams inclu
r
ative purposes.
B
nts imposed on a
n
ot assume respo
n
t
he examples and
lity is assumed b
y
c
uits, equipment,
s manual we use
gnized symbols
a
s
afety considerati
o
m
ation about pra
c
a
l or physical haz
a
e
sult in death or s
e
o
ss.
m
ation about pra
c
a
l or physical haz
a
e
sult in minor or
m
o
ss.
A
UTION
O
TIC
E
ded in this manu
a
B
ecause of the m
a
ny particular inst
a
n
sibility or liability
diagrams.
y
INFICON with r
e
or software desc
r
notes, notices an
a
nd safety messa
g
o
ns.
c
tices or circumst
a
a
rds which, if pre
c
e
rious injury, pro
p
c
tices or circumst
a
a
rds which, if pre
c
m
oderate injury, pr
o
3
a
l are provided
a
ny variables
a
llation,
for any actual
e
spect to use of
ibed in this
d
apply inte
r
-
g
es to make
a
nces that can
c
autions are not
erty damage,
a
nces that can
c
autions are not
o
perty damage,

4tinb25e1 (2016-04)
Identifies information that is critical for successful application and
understanding of the product.
Labels may be located on or inside the device to alert people
that dangerous voltages may be present.
SHOCK HAZARD

tinb25e1 (2016-04) 5
General Safety Instructions
•Adhere to the applicable regulations and take the necessary
precautions for the process media used.
Consider possible reactions with the product materials.
Consider possible reactions (e.g. explosion) of the process
media due to the heat generated by the product.
•Adhere to the applicable regulations and take the necessary
precautions for all work you are going to do and consider the
safety instructions in this document.
•Before beginning to work, find out whether any vacuum com-
ponents are contaminated. Adhere to the relevant regulations
and take the necessary precautions when handling contamin-
ated parts.
Communicate the safety instructions to all other users.
Liability and Warranty
INFICON assumes no liability and the warranty becomes null
and void if the end-user or third parties
•disregard the information in this document
•use the product in a non-conforming manner
•make any kind of interventions (modifications, alterations etc.)
on the product
•use the product with accessories not listed in the product
documentation.

6tinb25e1 (2016-04)
Contents
Product Identification 2
Validity 2
Important User Information 2
General Safety Instructions 5
Liability and Warranty 5
1Introduction / General Information 8
1.1 Description 8
1.2 Specifications 9
1.3 Dimensions 11
1.4 Options & Accessories 12
2Important Safety Information 13
2.1 Safety Precautions - General 13
2.2 Safety Precautions - Service and Operation 14
2.3 Electrical Conditions 15
2.3.1 Proper Equipment Grounding 16
2.3.2 Electrical Interface and Control 16
2.4 Overpressure and use with hazardous gases 17
2.5 Gases other than Nitrogen / air 18
3Installation 19
3.1 Mechanical Installation - Controller 19
3.2 Electrical Installation 20
3.2.1 Grounding 20
3.2.2 Electrical Connections 20
4Setup and Operation 24
4.1 Initial Setup 24
4.2 User Interface Basics 25
4.3 Programming 26
4.4 Return to Factory Default Settings 31
5Using the Gauge with Different Gases 32
6Display 35
6.1 Display - Torr / mTorr 35
6.2 Display - mbar 39

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7Analog Output 44
7.1 Log 1-8; Log-Linear Analog Output Equation &
Table - Torr 48
7.2 Log 1-8; Log-Linear Analog Output Equation &
Table - mbar 52
7.3 Log 0-7; Log-Linear Analog Output Equation &
Table - Torr 57
7.4 Log 0-7; Log-Linear Analog Output Equation &
Table - mbar 61
7.5 NONLIN 6V; Non-Linear Analog Output Equations 66
7.6 NONLIN 6V; Non-Linear Analog Output Table - Torr 68
7.7 NONLIN 6V; Non-Linear Analog Output Table - mbar 72
7.8 NONLIN 9V; Non-Linear Analog Output Equations &
Table 76
7.9 LINEAR ANALOG OUTPUT 79
8RS485 / RS232 serial communications 81
8.1 Device Specific Serial Communication Info 81
8.2 RS485 / RS232 Command Protocol Summary 82
9Service 85
9.1 Calibration 85
9.1 Maintenance 85
9.3 Troubleshooting 86
10 Factory Service and Support 88
11 Storage 88
13 Disposal 89
For cross-references within this document, the symbol (→XY)
is used.

8tinb25e1 (2016-04)
1 Introduction / General Information
1.1 Description
The VGC031 vacuum gauge controller is a convenient and inex-
pensive power supply and readout instrument for the INFICON
PGE050 Pirani Gauge Enhanced or a Granville-Phillips® 275
Convectron®. The 1/8-DIN housing can be used as a bench top,
or mounted in a cutout in an instrument panel. The VGC031 is
powered by user supplied 12 to 28 V (dc), 2 W, or by the
INFICON power supply.
Thermal conductivity gauges measure pressure indirectly by
sensing the loss of heat from a sensor to the surrounding gases.
The higher the pressure of the surrounding gas, the more heat is
conducted away from the sensor. Pirani thermal conductivity
gauges maintain a sensor (usually a wire) at some constant tem-
perature, and measure the current or power required to maintain
that temperature. A standard Pirani gauge has a useful measur-
ing range of about 10-4 Torr to 10 Torr. By taking advantage of
convection currents that are generated above 1 Torr, convection-
enhanced Pirani gauges increase the measuring range to just
above atmosphere.
The VGC031 signals and relay functions are the same as found
on similar convection gauge controllers from other manufactur-
ers. The VGC031 Controller, PGE050 vacuum gauge tube and
gauge cable can be directly interchanged with MKS Instruments
/ Granville-Phillips® (GP) 375 or 475 controller, 275 Convec-
tron® gauge and gauge cable (Remote interface, relay and pow-
er connectors are different). Various analog output scaling pro-
vide signal compatibility with GP controller series 375, 475, the
original GP 1/4 DIN 275 Analog Convectron Gauge Controller as
well as the Mini-Convectron® module.

tinb25e1 (2016-04) 9
1.2 Specifications
Supply voltage 12 … 28 V (dc), 2 W protected
against power reversal and tran-
sient over-voltages
Connection 2-pin pluggable terminal block
(mating connector included)
Permissible temperature
Operating 0 … +40 °C
Storage –40 … +70 °C
Relative humidity 0 to 95%, non-condensing
Use
Operating altitude up to 2500 m (8200 ft.)
Storage altitude up to 12500 m (41000 ft.)
Housing 1/8-DIN panel-mount enclosure
(aluminum extrusion)
Connections
Gauge 9-pin D-sub female (mating
connector provided as part of the
gauge cable)
Analog output and serial
communications interface 9-pin D-sub male
Relay outputs 6-pin pluggable terminal block
(mating connector included)
Measurement range 1.3×10-4 … 1333 mbar
1×10-4 … 1000 Torr
1.3×10-2 Pa … 133 kPa
Display rate 0.5 s
Units mbar, Torr or Pa
Display bright OLED, 4 digits
1100 Torr … 1000 Torr 4 digits
999 Torr … 10.0 mTorr 3 digits
9.9 mTorr … 1.0 mTorr 2 digits
0.9 mTorr … 0.1 mTorr 1 digit

10 tinb25e1 (2016-04)
Interface (digital) RS232 and 2 wire/4 wire RS485
Protocol ASCII
Analog output
Log-linear 0 to 7 V (dc) or
1 to 8 V (dc),
1 V/decade
Linear 0 to 10 V (dc)
Non-linear S-curve 0.375 to 5.659 V (dc)
Non-linear S-curve 0 to 9 V (dc)
Switching function relays two single-pole double-throw
relays (SPDT), 1 A at 30 V (dc)
resistive, or ac non-inductive

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1.3
1 (2016-04)
Dimensio
n
mm (inch)
Weight
n
s
≈
≈
250 g (9 oz.)
11

12
1.4 Options &
Power supply
f
Input
Output
Cable length
The conventio
n
use with any u
s
worldwide.
Accessories
f
or VGC031
100 … 240
V
24 V (dc)
2 m (6 ft)
n
al IEC60320 AC
s
er supplied AC
m
tin
b
V
(ac), 50 … 60 H
z
power entry rece
p
m
ains power cord
b
25e1 (2016-04)
Ordering No.
399-575
z
p
tacle allows
set available

tinb25e
2
2.1
1 (2016-04)
Importan
t
INFICON has
d
and reliable s
e
the strict safet
y
and follow all
To avoid seri
o
tion in this d
o
procedures c
o
death, and or
Failure to com
p
ards of installa
disclaims all li
a
these instructi
o
Although ever
y
ble installation
s
that arises fro
m
of the module.
tion and use o
f
This device m
e
radiator, class
Safety Pre
c
Hazardous vol
t
operation. The
removed unle
s
dental contact
W
t
Safety Inf
o
d
esigned and tes
t
e
rvice, provided it
y
guidelines provi
d
warnings and i
n
o
us injury or de
a
o
cument. Failure
o
uld result in se
r
property damag
p
ly with these wa
r
tion and intended
a
bility for the cust
o
o
ns.
y
attempt has bee
s
, INFICON cann
o
m
various installat
If you have any
q
f
this product, ple
a
e
ets FCC part 15
A.
c
autions - G
e
t
ages are presen
t
product should n
s
s equivalent prot
e
with hazardous i
n
W
ARNING
o
rmation
t
ed this product t
o
is installed and o
p
d
ed in this manu
a
n
structions.
a
th, follow the sa
f
to comply with
t
r
ious bodily har
m
e.
r
nings violates th
e
use of this instru
m
o
mer’s failure to c
n made to consid
e
o
t anticipate ever
y
ions, operation, o
r
q
uestions about th
a
se contact INFI
C
requirements for
a
e
neral
t
with this p
r
oduct
ever be operated
e
ction of the oper
a
n
ternal voltages is
13
provide safe
p
erated within
l. Please read
f
ety informa-
hese safety
m
, including
e
safet
y
stand-
m
ent. INFICON
o
mply with
e
r most possi-
y
contingency
r
maintenance
e safe installa-
C
ON.
a
n unintentional
during normal
with the covers
a
tor from acci-
provided.

14
2.2
WARNI
N
adjustments in
service trained
Do not modify
thorization of
q
turn the produ
c
ter to ensure t
h
this product if
u
WARNI
N
product prior t
o
After servicing
made by a qu
a
required, ensu
stitutions of no
or other hazar
d
made to this p
r
To reduce the
product to rain
and careful att
e
onto these pro
d
been damage
d
of the product
Due to the po
s
mental conditi
o
compromised
o
odically inspe
c
ment groundin
g
trical insulatio
n
Safety Pre
c
Ensure the en
c
good quality e
a
Ensure that th
e
gauge tube is
m
N
G! There are n
o
side the product
e
personnel.
this product or su
q
ualified INFICON
c
t to an INFICON
h
at all safet
y
feat
u
u
nauthorized mo
d
N
G! Source pow
e
o
performing any
s
this product, ens
u
a
lified service per
s
re that the parts
a
n-qualified parts
m
d
s. Use of unauth
o
r
oduct will void th
e
risk of fire or elec
t
or moisture. The
s
e
ntion must be p
a
d
ucts. Do not us
e
d
. Immediately co
n
if it is damaged.
s
sibility of corrosi
o
o
ns, it is possible
t
o
ver time. It is im
p
c
ted for sound ele
c
g
. Do not use if t
h
n
has been compr
o
c
autions - S
e
c
losure of the VG
C
a
rth ground.
e
vacuum port on
m
ounted is electri
tin
b
o
operator servic
e
e
nclosure. Refer
s
bstitute any parts
service trained p
e
qualified service
a
u
res are maintain
e
d
ifications have b
e
e
r must be remov
s
ervicing.
u
re that all safety
s
on. When replac
e
a
re specified by I
N
m
ay result in fire,
e
o
rized parts or m
o
e
warranty.
t
ric shock, do not
s
e products are n
o
a
id to not spill any
e
these products i
f
n
tact INFICON to
o
n when used in c
e
t
hat the product’s
p
ortant that the pr
o
c
trical connection
s
h
e equipment gro
u
o
mised.
e
rvice and O
p
C
031 is connecte
d
which the PGE0
5
cally grounded.
b
25e1 (2016-04)
able parts or
s
ervicing to
without au-
e
rsonnel. Re-
a
nd repair cen-
e
d. Do not use
e
en made.
e
d from the
checks are
e
ment parts are
N
FICON Sub-
e
lectric shock
o
difications
expose this
o
t waterproof
type of liquid
they have
arrange return
e
rtain environ-
safety could be
o
duct be peri-
s
and equip-
u
nding or elec-
p
eration
d
directly to a
5
0 vacuum

tinb25e
2.3
1 (2016-04)
Use an appro
p
INFICON seri
e
Turn off power
troller.
Turn off power
product is not
o
manual. Cont
a
service or trou
b
this instruction
It is important
t
sound electric
a
use if the equi
p
compromised.
Do not use if t
h
been damage
d
instructions fo
r
Electrical
C
WARNI
N
system, a life t
h
less all expos
e
ground potenti
a
tact with the g
a
discharge with
i
high voltage di
A person coul
d
with an expos
e
age potential.
T
come in conta
c
(vacuum / pre
s
p
riate power sour
c
e
s optional power
r
to the unit befor
e
r
to the unit if a ca
o
perating normall
y
a
ct qualified INFI
C
b
leshooting condi
manual.
t
hat the product b
e
a
l connections an
d
p
ment grounding
o
h
e unit has been
d
d
. Contact INFIC
O
r
returning the pro
C
onditions
N
G! When high
v
hreatening electri
c
e
d electrical cond
u
a
l. This applies t
o
a
s contained in v
a
in a gaseous envi
rectly to any ung
r
d
be seriously inju
e
d, ung
r
ounded el
T
his condition ap
p
c
t with the gas in
s
s
sure containmen
t
c
e of 12 to 28 V (
d
supplies.
e
attempting to se
r
ble or plug is da
m
y
according to thi
s
C
ON service pers
o
tion that may not
e
periodically ins
p
d
equipment grou
n
o
r electrical insul
a
d
ropped or the en
c
O
N for return auth
o
duct to INFICON
f
v
oltage is present
c
al shock hazard
u
ctors are maintai
n
o
all products that
a
cuum chambers.
ronment may co
u
r
ounded conducto
red or killed by c
o
ectrical conducto
r
p
lies to all produc
t
s
ide the vacuum c
t
vessel).
15
c), 2 W or use
r
vice the con-
m
aged or the
s
instruction
o
nnel for any
be covered by
p
ected for
n
ding. Do not
a
tion has been
c
losure has
o
rization and
f
or evaluation.
in any vacuum
may exist un-
n
ed at earth
c
ome in con-
An electrical
ple dangerous
r of electricity.
o
ming in contact
r
at high volt-
t
s that may
h
amber

16
2.3.1
2.3.2
Proper Equi
WARNI
N
j
ure or cause
d
ify that the vac
tube is mount
e
Electrician if y
o
Proper ground
well as intend
e
vacuum gaug
e
must be conn
e
ground lug on
t
necessary.
WARNI
N
shock and bo
j
ect to potent
i
around the v
a
Electrical In
t
It is the user’s
from this prod
u
for example, r
e
Always double
to automate y
o
sis of your sys
t
safety measur
e
age.
pment Groun
d
N
G! Hazardous
v
d
eath are present
uum port on whic
e
d is electrically g
r
o
u are in doubt a
b
ing of your equip
m
e
d operation of th
e
e
tube and enclos
u
e
cted directly to a
t
he PGE050 gau
g
N
G! In order to
p
dily harm, shiel
d
i
al high voltage
e
a
cuum system.
t
erface and C
o
responsibility to
e
u
ct and any conn
e
e
lays and solenoi
d
check the syste
m
o
ur process. Perf
o
t
em design and e
n
e
s are taken to pr
e
tin
b
d
ing
v
oltages that coul
d
in many vacuum
p
h the PGE050 va
c
r
ounded. Consult
b
out your equipm
e
m
ent is essential
f
e
equipment. The
u
re of the VGC03
1
good quality eart
h
g
e vacuum conne
c
p
rotect personn
e
d
all conductors
w
e
lectrical discha
r
o
ntrol
e
nsure that the el
e
e
ctions made to e
x
d
s, are used in a
s
m
set-up before u
s
o
rm a hazardous
o
n
sure safeguards
e
vent injury and
p
b
25e1 (2016-04)
d
seriously in-
p
rocesses. Ver-
c
uum gauge
a
qualified
e
nt grounding.
o
r safety as
PGE050
1
controller
h
ground. Use a
c
tion / flange if
e
l from electric
w
hich are sub-
r
ges in or
e
ctrical signals
x
ternal devices,
s
afe manner.
s
ing any signals
o
peration analy-
and personnel
p
roperty dam-

tinb25e
2.4
1 (2016-04)
Overpress
u
WARNI
N
limit the level
o
than what the
v
of withstandin
g
sures exceedi
n
In cases wher
e
condition, alw
a
ample, use a
p
eration where
a
sures if the pr
e
chamber.
The PGE050
v
controller is n
o
(1000 Torr); D
O
the sensor. If
y
should install
a
tect the gauge
tings, actual s
a
ample, a quick
release the ga
u
only a few psi
o
pressure.
CAUTI
O
device is allo
w
metric press
u
tings may rel
e
may cause le
a
tube to relea
s
vironment. T
o
amples of ha
z
vacuum/pres
s
environment,
age to equip
m
volume to pr
e
using hazard
o
u
re and use
w
N
G! Install suita
b
o
f pressure inside
v
acuum chamber
g
. INFICON gaug
e
n
g 1000 Torr abs
o
e
an equipment f
a
a
ys implement fail
-
p
ressure relief de
v
a
malfunction cou
e
ssure relief devic
v
acuum gauge tu
b
o
t intended for us
e
O
NOT exceed 3
5
y
our chamber goe
a
n isolation valve
o
tube from overpr
e
a
fe overpressure
c
k
-connect, O-ring
c
u
ge tube from th
e
o
ver local uncorr
e
O
N! If the intern
a
w
ed to increase
a
u
re (atmospheric
e
ase and possib
l
a
ks that would a
l
s
e into the atmo
s
o
xic, pyrophoric
a
z
ardous gases t
h
s
ure containmen
could cause bo
d
m
ent. Never exp
o
e
ssure above loc
o
us gases.
w
ith hazardo
b
le protective devi
c
your vacuum ch
a
system compone
e
s should not be
u
o
lute pressure.
a
ilure could cause
-
safe system ope
r
v
ice in an automa
t
ld result in high i
n
e was not installe
b
e connected to t
h
e
at pressures ab
o
5
psig (<2½ bars)
s to higher press
u
o
r pressure relief
e
ssure conditions
c
onditions may b
e
c
ompression fittin
g
e
vacuum chambe
e
cted barometric (
a
l pressure of a
v
a
bove local unc
o
pressure side),
v
l
e overpressure
c
l
low the gas insi
d
s
phere of the sur
r
a
nd flammable
g
h
at if allowed to l
t vessel into the
d
ily injury and p
o
o
se the gauge tu
b
al atmospheric
p
17
us gases
c
es that will
mber to less
nts are capable
u
sed at pres-
a hazardous
r
ation. For e
x
-
t
ic backfill op-
n
ternal pres-
d
on the
h
e VGC031
o
ve 20 psia
pressure inside
u
res, you
d
evice to pro-
.
With some fit-
e
lower; for ex-
g
may forcibly
r fitting with
a
tmospheric)
v
acuum gauge
o
rrected baro-
v
acuum fit-
c
onditions
d
e the gauge
r
ounding en-
g
ases are ex-
e
ak out of the
atmospheric
o
ssible dam-
b
e internal
p
ressure when

18
2.5 Gases oth
e
WARNI
N
nitrogen (N
2
) o
bles.
INFICON gau
g
of nitrogen or
a
argon (Ar) or c
data for N
2
to
o
"Using the gau
Output" for a
m
WARNI
N
to this device i
n
flammable ga
s
measure the p
mixtures. The
s
125 °C, but if
m
could exceed t
gases and ga
s
could result in
e
r than Nitro
g
N
G! Do not atte
m
r air without refer
r
g
es and modules
a
a
ir. Do not attemp
arbon dioxide (C
O
o
ther gas is prope
u
ge with different
g
m
ore complete dis
c
N
G! Do not use t
n
an explosive at
m
s
es, vapors or fu
m
ressure of explos
i
s
ensor wire in th
e
m
alfunction shoul
d
he ignition tempe
s
mixture. This co
u
serious injury or
d
tin
b
g
en / ai
r
m
pt to use with ga
s
r
ing to correction
f
a
re calibrated for
d
t to use with othe
r
O
2
) unless accura
t
rly used. Refer to
g
ases", "Display"
a
c
ussion.
he convection ga
u
m
osphere or in th
e
m
es. Do not use th
i
ve or combustibl
e
e
gauge normally
o
d
occur, the wire t
e
rature of certain
c
u
ld cause an expl
o
d
eath.
b
25e1 (2016-04)
s
es other than
f
actor data ta-
d
irect readout
r
gases such as
t
e conversion
sections titled
a
nd "Analog
u
ge connected
e
presence of
is device to
e
gases or gas
o
perates at
e
mperature
c
ombustible
o
sion which

tinb25e
3
3.1
1 (2016-04)
Installati
o
Mechanic
a
The VGC031 i
s
mounted in an
To mount the
V
1. Make a cut
o
the drawing
panel for th
e
the rear of t
h
2. Gently pry t
h
Screw mounti
n
brackets on ei
side
o
n
a
l Installation
s
designed for us
e
instrument contr
o
V
GC031 in a pan
e
o
ut in your instru
m
above. Be sure t
o
e
instrument as w
e
h
e instrument
h
e front panel be
z
n
g
ther
- Controller
e
on a bench top,
o
l panel.
e
l:
m
ent control panel
o
allow clearance
e
ll as connectors
z
el loose and rem
o
19
or it may be
as shown in
behind the
and cables at
o
ve.
Bezel

20
3.2
3.2.1
3.2.2
3. Slide the V
G
4. On either si
d
ets. When t
h
countercloc
k
way into th
e
clockwise, t
h
Tighten the
s
place again
s
5. Press the fr
o
Electrical I
Grounding
Be sure
properly groun
Be aware that
rings, may not
gauge and the
Electrical C
o
A good recom
m
cable prior to
c
The INFICON
V
other manufac
t
ler. Many of th
e
15-pin D conn
e
pinout configu
r
sure to check
c
Rewire your c
a
G
C031 into the p
a
d
e of the VGC03
1
h
e screws in the f
k
wise, the hold-d
o
e
VGC031 housin
g
h
e brackets rotat
e
s
e screws until th
e
s
t the panel.
o
nt panel bezel b
a
nstallation
the vacuum gau
g
ded to protect pe
r
some vacuum fitt
i
produce a good
e
chamber it is co
n
o
nnections
m
ended practice i
c
onnecting or disc
V
GC031 may rep
t
urers, such as th
e
e
se other controll
e
e
ctors, but they d
o
r
ations. If you wis
h
c
ompatibility with
t
a
bles as necessa
r
tin
b
a
nel hole cutout.
1
are two screw-
m
ront of the instru
m
o
wn brackets rec
e
g
. When these sc
r
e
out 90° behind t
h
e
brackets hold th
a
ck in place.
g
e and your vacu
u
r
sonnel from sho
c
i
ngs, especially t
h
e
lectrical connecti
o
n
nected to.
s to remove pow
e
onnecting it.
lace similar contr
o
e
Granville-Philli
p
e
rs employ the s
a
o
not all use the s
a
h
to use your exis
t
he tables on the
r
y.
b
25e1 (2016-04)
m
ounting brac
k
-
m
ent are turned
e
ss out of the
r
ews are turned
h
e panel.
e
VGC031 in
u
m system are
c
k and injury.
h
ose with O-
o
n between the
e
r from any
o
llers from
s
®
375 control-
a
me 9-pin and
a
me signal /
t
ing cables, be
n
ext page.