The TRUTH Digital Pressure Gauges
Valve connection port
(uses SILCA 252 chuck
gasket)
Bleed valve control knob
3-11/16
[93.66]
3D Printed
Titanium Body
ø2-43/64
[67.87]
1-1/2 [38.10]
316L stainless
connection /
1/4" Male NPT
High-impact silicone
protective housing
1/4 NPT
The TRUTH Digital Pressure Gauge has a precise ±1.0% full scale
accuracy. The four digit digital display will reduce the potential for errors
in readings by eliminating parallax errorr commonly produced with analog
gauges.
The TRUTH is packaged in an ABS plastic case. The unit is battery
powered and has an auto-shut off to conserve battery life. A two-button
key pad allows easy access to the features without the need to work
through complex menus. These features include, auto zero, and conversion of the pressure units. Readings may be converted to various
engineering units. See the chart for available units.
OPERATIONS INSTRUCTIONS
For the complete instructions for the functionality of the two buttons, see
the flow chart to the right.
On/Off: To toggle between on and off. Press the button. Device will
automatically shut off after 20 minutes, if not used.
Zero: Zeros the display. Push and hold for 2 seconds to zero the display.
If after pressing the zero the display does not re-zero, the unit is no longer
meeting the specified accuracy and should be sent back to SILCA for
calibration. Do not use the Zero button when pressure is applied.
SPECIFICATIONS
Service: Air and compatible gases
Wetted Materials: 316L SS, Silicone sensor
Housing Materials: ABS plastic.
Accuracy: ±1.0% FS (Includes linearity, hysteresis, repeatability).
Pressure Limits: 2X pressure range. Vacuum range max pressure is 30 psig.
Temperature Limits: 30 to 120°F (-1 to 49°C).
Thermal Effect: 0.05% FS/°F.
Size: 2.62˝ O.D. x 1.52˝ deep.
Process Connections: 1/4˝ male NPT.
Display: 4-digit LCD (.425˝ H x .234˝ W digits).
Power Requirements: 9 V alkaline battery. Battery included but not connected.
Auto Shut-off: 20 minute auto shut-off.
Weight: 5.6 oz (160 g).
Agency Approvals: CE.
BUTTON OPERATION
To Turn On & Off:
Units: To change units, press both On/Off and Zero buttons simultaneously.
Overpressure Indicator: The LCD will flash “OFL”, if the pressure
applied is over 105% F.S. “OFL” may also be displayed when the devise
is subjected to electromagnetic interference between 0.9 to 1 GHz.
MAINTENANCE
Battery Removal: Remove the outer rubber casing. Unthread the bolt on
the backplate. Lift backplate off by hand. Replace battery per polarity
indicators. Reverse steps to reassemble gauge.
Press to turn unit on.
Press again to turn unit off.
To Zero Display:
To zero display, disconnect gage from any pressure source. Press
and hold zero button until the LCD displays “- - -”, then release.
To Change Units:
To change units, disconnect gage from any pressure source.
Press both
&
buttons simultaneously until
desired units are displayed.
A “LOW BAT” descriptor indication will appear on the display when
batteries need to be replaced.
This symbol indicates waste electrical products should not be
disposed of with household waste. Please recycle where facilities
exist. Check with your Local Authority or retailer for reycling advice.
252 Gasket Replacement: When the rubber gasket has detiorated, you
will need to replace the gasket. Order part: 252 Gasket. Unthread cap.
Using a small screwdriver, you can remove the old gasket. Replace
gasket and re-thread the cap back into place.
AEROMIND LLC. / SILCA
835 N. CAPITOL AVE • INDIANAPOLIS, INDIANA 46204, U.S.A
psi
0 to 200 psi
kg/cm2
14.06
PRESSURE UNITS + RANGES
bar
in Hg
ft wc
13.79
407.2
461.3
Phone: 800-9905-2157
kPa
1379
oz/in2
3200
Email: [email protected] silca.cc
">