01
03
06
02
05
04
07
09
12
08
11
10
Directly to
Service Port
Schrader Core
Removal Tool
Hose
To
Pump
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
Quick Start
1. Power on your SVG3 by holding the
button for 1 second.
2. Connect to system directly to an
unused service port, a Schrader core
removal tool (SCRT), or via hoses.
3. View vacuum in microns of mercury
on the top line and rate of change
(±microns per minute) on the bot-
tom line.
Certifications
C-Tick (N22675)
CE
WEEE
RoHS Compliant
Description
Proper evacuation of any system
exposed to atmosphere is critical to
ensure efficient operation and the
SVG3 is the right tool to help HVACR
professionals verify they reach proper
vacuum levels. See your vacuum
measurement clearly and easily with
the newly designed easy-view hook
and backlight. SVG3 is built for field
use with its ruggedized rubber case.
Reducing connections mini-
mizes leaks, so the SVG3 has
a female 1/4" flare fitting with
schrader depressor so you can
connect it directly to a service port or
your valve core removal tool.
Be alerted when you've reached
your desired vacuum levels with built
in Hi and Lo Alarm functions. Check for
leaks with rate indication in microns
per minute. The HVACR professional
can do more with confidence that he
is doing the job right the first time.
Display
Top Line: Live Vacuum Measurement
in Microns of Mercury (Hg)
Bottom Line: Rate of Micron Change
or Alarm Stopwatch
Auto Power Off Enabled
Battery Life
Alarm Set Mode
Low Alarm Mode
High Alarm Mode
Rate of Micron Change
(±Microns Per Minute)
Fieldpiece
Easy View
Vacuum Gauge
OPERATOR'S MANUAL
Model SVG3
Controls
Hold 1 second to power SVG3 on/ off. Press
<1 second to toggle backlight.
Press to activate Alarm Lo, Alarm Hi, and
return to real time mode. Hold 1 second to
enter or exit Alarm Set mode.
Lock in selected digit and move to next in
Alarm Set Mode.
Increase or decrease blinking digit in
Alarm Set Mode. Toggle to display
stopwatch or rate of change when an
alarm is activated in real time mode.
BACKLIGHT NOTE: The backlight timer is automatically
extended for 1 min when any button is pressed. A short
press of toggles backlight on and off.
Specifications
General
Operating temperature: 32°F (0°C) to 122°F (50°C) at
<75%RH
Storage temperature: -4°F to 140°F (-20°C to 60°C), 0
to 80% RH (with battery removed)
Temperature coefficient: 0.1 x (specified accuracy)/°C
(<18°C or >28°C)
Over range:
"OL" is displayed
Power: 4 x AAA batteries, NEDA 24A, JIS UM4, IEC R03
Auto power off:
after 15 minutes of readings more
than 10,000 microns if APO is active.
Battery life: 40 hours standard use (alkaline) without
backlight use.
Low battery indication:
is displayed when the
battery voltage drops below the operating level.
Vacuum Pressure
Units of measure: microns (µm) of mercury
Connector type: Standard 1/4" female flare fitting. "T"
fitting included ( 3 male flare ports)
Range: 0 to 9999 microns of mercury
Accuracy: ±(5% of r 5 microns), 50 to 1000
microns
Resolution: 1 micron (50 to 2000 microns), 250
microns (2001 to 5000 microns), 500 microns (5001
to 8000 microns), 1000 microns (8001 to 9999
microns)
Rate: Microns per minute
Refresh rate: 0.5 seconds
Atmospheric pressure: "OL" will be displayed
Maximum overload pressure: 500 psig
How to Use
Normal Mode
M e a s u re d e e p v a c u u m s t o
monitor your system evacua-
tions. Deep vacuums help remove
non-condensable gases that can
cause problems in a system.
There are many ways to connect to
the system, Fieldpiece recommends
using a SCRT and the shortest vacuum
rated hoses possible. Fewer connec-
tions reduce the potential for leaks.
1. Connect to system. Techs typically prefer connect-
ing to the Schrader Core Removal Tool (SCRT) or an
unused service port.
2. Hold for 1 second to power ON the SVG3.
3. The top display shows the vacuum in microns of
mercury.
4. The bottom display shows how fast the measure-
ment is increasing or decreasing (± microns of
mercury per minute).
Low and High Alarms
Be alerted when you've reached your
desired vacuum levels. Work on other
tasks at the jobsite and let SVG3 alert
you when the system is ready.
Activate the low alarm (default 500
microns) to alert when the vacuum has
dropped to your desired micron level.
Activate the high alarm (default 1000
microns) to see how long it takes the
system to stabilize after the vacuum
pump has been isolated. If the system
does not stabilize over time, you may
have a leak in the system or your con-
nections.
The stopwatch will start when an
alarm is activated. It will restart when
the low alarm has been reached to show
how long you've pulled a vacuum after
reaching your desired micron level. The
stopwatch will stop when the high alarm
has been reached to show how long it
took to rise to your high alarm value.
When an alarm is activated the UP or
DOWN ARROW toggles the stopwatch
and rate of change (± microns per min-
ute) display.
How to Activate the Alarms
1. Press ALARM to activate low alarm.
2. Press ALARM again to deactivate low alarm and
activate high alarm.
3. Press ALARM again to deactivate high alarm and
return to real time mode.
How to Set the Alarms
The default low (500 microns) and
high (1000 microns) alarm values can
easily be set to whatever you want.
1. Hold ALARM for 1 second to enter Alarm Set Mode.
The first digit of LO alarm will blink.
2. Use ARROWS to change the blinking number. Press
ENTER to lock in a digit and move to the next digit.
Repeat for all LO alarm digits.
3. When LO alarm is complete, the first digit of HI alarm
will blink. Use ARROWS to change the blinking
number. Press ENTER to lock in a digit and move to
the next digit. Repeat for all HI alarm digits.
4. When all digits of HI alarm are locked in you will
automatically exit Alarm Set Mode and your
customized alarm values will be saved.
Note: Anytime while in Alarm Set Mode, you can press
ALARM to toggle between alarm HI set and alarm
LO set. Hold ALARM to exit Alarm Set Mode and
save at any time.
Note: "Err" will show if you try to set the HI alarm
lower than the LO alarm, or the LO alarm higher
than the HI alarm.
Vacuum Tips
Follow all manufacturer's evacu-
ation procedures over those in this
manual in regards to specifications on
how to evacuate systems. To achieve
a deep vacuum efficiently Fieldpiece
recommends the following practices.
1. Remove Schrader cores and core depressors from
the service ports using a valve core removal tool
(purchased separately).
2. Use the shortest vacuum rated hoses with the
largest diameter available.
3. Inspect rubber seals at both ends of your hoses for
damage that may result in leakage.
4. Avoid using hoses with low loss fittings when
evacuating a system.
5. Avoid over-tightening the female flare fitting of
the SVG3. Over-tightening may cause the rubber
gasket to wear more quickly and create leaks. It is
not necessary to over tighten SVG3 to the extreme
to create a good seal.
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
(tool not included)
Recommended
Setup
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
To
Pump
To
Service
Port
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
Hose to
Removal
Tool
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
MICRONS OF MERCURY
SVG3
VACUUM
GAUGE
MIN
ALARM
ENTER
Other Common
Setups
