JB Industries DVR-22 Digital Vacuum Gauge Instruction Manual
- June 4, 2024
- JB Industries
Table of Contents
Industries DVR-22 Digital Vacuum Gauge
Instruction Manual
Introduction
Thank you for purchasing a JB Industries DVR-22 Vacuum Gauge. This device is capable of accurately measuring the vacuum level in various systems used in the HVACR industry. This gauge displays vacuum readings on an easy-to-view back-lit LCD screen.
Specifications
| Vacuum Range | 9,000 micron – 20 microns |
|---|---|
| Resolution | 1 micron; Resolution varies based on the depth of the vacuum |
| Sensor Type | Thermistor |
| Vacuum Units | Microns, Torr, mTorr, PSIA, mBar, Pascals, and InHg |
| Power Supply | Three AA batteries (included) |
| Battery Life | Approximately 55 hours |
| Operating Temperature | +32°F to 122°F (0°C to +50°C) |
| Storage Temperature | +14°F to 140°F (-10°C to +60°C) |
| Humidity | 85% RH @113°F (45°C), non-condensing |
| Display | Backlit LCD |
| Unit Weight | 9.5 oz |
General Safety
Use caution when servicing all types of systems. Some refrigerants are flammable or toxic. Pipes, tubes, refrigerant,s and other components of HVACR equipment can be very hot (or very cold). Skin can easily be burned or frostbitten if refrigerants and components are touched. Use adequate personal protective equipment when servicing these systems. Follow all local and national codes, rules, and regulations when servicing HVACR equipment.
Features
- Measures vacuum levels in HVACR equipment
- Brass female 1/4” flare fitting easily attaches to common system fittings; Includes an angled adapter fitting for alternate positioning and improved visibility
- The large back-lit LCD display is easy-to-read
- The intuitive design saves the lowest vacuum reading
- Adjustable auto-off feature, long run-time, and battery life indicator
- Four button interface offers easy setting adjustments
- Durable plastic housing
- Robust vacuum sensor for accurate vacuum measurements and easy cleaning
- 1-year warranty
- Made in the USA
| PART NO. | DESCRIPTION |
|---|---|
| DVR-22 | Vacuum Gauge and 1/4″ Angled Adapter |
Installing Batteries
- Remove the screw from the cover on the back of the gauge
- Place 3 AA batteries inside
Note the orientation of the + and – side of the batteries. Re-install the cover and screw
Operating Instructions
Power Clamp On/Off
- Press the POWER button to turn on
- Press and hold the POWER button to turn off Screen Icons/Definitions
Changing the Unit of Measurement
With the vacuum gauge on, press the UNITS button
Lowest Vacuum Reading
The gauge remembers the lowest reading
Press the LOWEST VACUUM button to view the lowest vacuum measurement in the
memory
Auto-off Timer
The DVR-22 will stay on for a user-defined period of time
After the time period expires, the unit will shut off to conserve battery life
The user can select a time period of 10 minutes, 30 minutes, or 60 minutes
Using the Vacuum gauge
Attaching the Gauge to a System
- Prior to evacuating a system, ensure that there is no refrigerant in the system
- Connect a vacuum pump to the system
- Connect the vacuum gauge to an available ¼” port, or use valve core removal tools with side ports, and connect the gauge to the side port Ideally, use a side port with a valve that can be closed to isolate the gauge from the system during the charging phase
- Turn on the pump and read the DVR-22 display to view the vacuum level
Protecting the Sensor
Protect the sensor from high pressures and refrigerants during the charging
cycle Isolate the gauge from the system after evacuation is complete to
prevent damage or contamination to the sensor
Cleaning the Sensor
If the sensor becomes contaminated with refrigerant or oil, it can be cleaned
with isopropyl alcohol
- Use a syringe or squeeze bottle filled with isopropyl alcohol; use the highest percentage of alcohol that can be obtained
- Squeeze the alcohol into the ¼” fitting on the gauge
- Place a finger over the fitting and shake the gauge to distribute the alcohol and cause it to move around the sensor
- Drain the alcohol and repeat the procedure several times
- Allow the unit to dry and test it on a system
If the reading is still not accurate, repeat the cleaning process
RETURN FOR REPAIR
Every effort has been made to provide reliable, superior quality products.
However, in the event your instrument requires repair, please contact JB
Customer Service Department to obtain a Return Goods Authorization (RGA)
number. Ensure that all returned products are packed to avoid any damage in
shipment. Paperwork should be placed in a separate plastic bag and should
include JB’s assigned RGA number, a description of the problem, and any
customer-assigned repair or purchase order number, if applicable.
Contact Customer Service for the RGA number:
800.323.0811 Toll-free
800.552.5593 Toll-free Fax
Products should be shipped with freight prepaid to:
JB Industries
RGA#_____
601 N. Farnsworth Ave., Aurora, IL 60505
Warranty
The DVR-22 is warrantied against defects in materials and workmanship for 1
year from the date of purchase. JB products are guaranteed when used in
accordance with our guidelines and recommendations. Warranty is limited to the
repair, replacement, or credit at invoice price, (our option) of products that
in our opinion are defective due to workmanship and/or materials. In no case
will we allow charges for labor, expense, or consequential damage. Repairs
performed on items out of warranty will be invoiced on a nominal basis;
contact the wholesaler for details. Additional product information is
available online at www.jbind.com.
WARNING: This product can expose you to chemicals including lead which is
known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov.
Part No. 10757-01-308 0622