yellow jacket EVac I Operation And Maintenance Manual Download Page 10

RESTORING FACTORY CALIBRATION

The original factory calibration can be restored at any time by the following procedure:

1.

Turn the 

EVac I

 power off.

2.

Hold  

 while pressing 

.  As soon as the power turns on, release

press 

 quickly at least three times.  The 

indicator should illuminate, a

should show on the Main Numeric Display. If not, turn the power off again and repeat.

3.

Press

 five times followed by 

4.

The gauge will beep 5 times and return to normal operation.  The 

EVac I

is now reset to the

original factory calibration.

TROUBLESHOOTING

Under certain conditions, the display may read 

 or 

.  Please use the table

below to determine and fix the problem: 

Display 

Mode 

Possible Problem 

Solution

Normal 

Operation 

Sensor Contaminated 

Clean the Vacuum Sensor

Ambient Temperature too 

Low 

Turn the eVac

vacuum port with your hand,

and turn the

Calibration 

Sensor Contaminated 

Clean the Vacuum Sensor

and Restart Calibration

Calibration 

Gauged Warmed too 

Quickly 

Restart Calibration. Allow the

Gauge to

Gauge Disturbed During 

Calibration 

Restart Calibration. Leave

the Gauge Undisturbed

During Warming Phase.

LOW TEMPERATURE OPERATION

The 

EVac I

 can operate accurately at temperatures as low as 10

°

F (-12

°

C).  While operating below

freezing (32

°

F/0

°

C), the display update rate will slow from 3.5 readings every second to one reading

every two seconds. 

A standard alkaline battey may not provide acceptable battery life at temperatures below 0

For low temperature operation, a 9V Lithium battery is recommended. 

calibration can be restored at any time by the following procedure:

 and 

 and then 

indicator should illuminate, and 

should show on the Main Numeric Display. If not, turn the power off again and repeat.

is now reset to the

. Please use the table 

Solution

Clean the Vacuum Sensor

Vac I off, warm the 

vacuum port with your hand, 

and turn the eVac I back on. 

Clean the Vacuum Sensor 

and Restart Calibration

Restart Calibration.  Allow the 

Gauge to Warm Slowly 

Restart Calibration.  Leave 

the Gauge Undisturbed 

During Warming Phase.

C).  While operating below 

C), the display update rate will slow from 3.5 readings every second to one reading 

A standard alkaline battey may not provide acceptable battery life at temperatures below 0

°

C (32

°

F). 

Summary of Contents for EVac I

Page 1: ...EVac I Digital Vacuum Gauge 99 Washington Street Melrose MA 02176 Phone 781 665 1400 Toll Free 1 800 517 8431 Visit us at www TestEquipmentDepot com...

Page 2: ...ut the Size of a Manifold Gauge Long Battery Life Calibration Self Test Can be field calibrated with no special equipment Ideal for HVAC R Service and Industrial Use SPECIFICATIONS s n o r c i M 0 0 0...

Page 3: ...PARTS DIAGRAM...

Page 4: ...tes that Temperature is Displayed on the Alternate Numeric Display during calibration Indicates degrees Celsius on the Alternate Numeric Display during calibration Pascal Units Indicator Millibar Unit...

Page 5: ...MPORTANT TO PREVENT DAMAGE FROM LEAKING BATTERIES DO NOT LEAVE A DEAD BATTERY INSIDE THE EVac I REMOVE BATTERY IF THE EVac I IS NOT TO BE USED FOR AN AN EXTENDED PERIOD OF TIME BATTERY LEVEL INDICATOR...

Page 6: ...ll detect this condition condition If the OIL indicator in the display illuminates this is an indication that the vacuum sensor has been contaminated and is no longer functioning accurately If the sen...

Page 7: ...determination of the vacuum level achieved Each bar corresponds to a vacuum pressure range depending on units according to the following table Units Bar Value Microns Pa Millibar Millitorr mmHg 10K 10...

Page 8: ...ENSOR 4 Place your finger over the port and shake for a few moments 5 Remove your finger and shake out the alcohol 6 Repeat steps 3 5 at least three times 7 Allow the sensor to air dry over at least a...

Page 9: ...ed in an area with a room temperature of at least 23 no greater than 30 C 86 F 10 Allow the EVac I to warm to 20 C 68 F At this point the alarm will sound and show on the display 11 Press any key to s...

Page 10: ...ring Calibration Restart Calibration Leave the Gauge Undisturbed During Warming Phase LOW TEMPERATURE OPERATION The EVac I can operate accurately at temperatures as low as 10 F 12 C While operating be...

Page 11: ...NOTES...

Page 12: ...4 Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com...

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