User Manual
25
P E R F O R M I N T E R N
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L
C Y L I N D E R L O
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D C E L L
S H O P C
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L I B R
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T I O N ?
S E L E C T Y E S O R N O
C O N N E C T C Y L I N D E R T O
L O W S I D E H O S E
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N D
O P E N V
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L V E
C O N T I N UE?
C H
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R G E I N P R O C E S S
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M T C H G = # # . # # L B
C O N T I N UE?
C
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L I B R
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T I O N M I N
W E I G H T O N
C O N T I N UE?
C
A
L I B R
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T I O N M
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X
W E I G H T O N
C O N T I N UE?
C
A
L I B R
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T I O N C O M P L E T E
R E M O V E W E I G H T
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M O U N T = # # # # # X X
C O N T I N UE?
Or the next screen may be displayed…
C
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L I B R
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T I O N F
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U L T
I N S U F F I C I E N T W E I G H T
C O N T I N UE?
Press YES key if a calibration is required. Otherwise,
press NO key. Special RTI 10 KG (22 LB) weights
are required to calibrate the scale, do not use steel
ball supplied with the machine! Load cell calibration
should be performed by qualified technicians only and
should be performed at least once per year. Call RTI
technical support for more information. 1-800-468-
2321 X 1
If YES key was pressed, this screen will display.
Connect the blue low side hose of the RHS980 to the
vapor port of a refillable DOT cylinder. Open the valve
on the cylinder. Press START key. Refrigerant will be
transferred from the RHS980 internal cylinder into the
externally connected DOT cylinder.
This screen will display a decreasing amount as
refrigerant is transferred to the DOT cylinder. Press
START key when the amount does not decrease any
more.
This screen indicates the weight scale is reading a
minimum weight since the charge cylinder is empty.
Press START key.
This screen prompts for maximum weight. Place the
calibration weights on top of the RHS980 charge
cylinder. The weight scale will now read a maximum
weight. Press START key.
The weight scale is now calibrated. Remove the
calibration weights. Press START key.
This screen will appear if the weight used does not
meet the required minimum. For example; attempting
to use the 4 KG (8.8 LB) weight or calibration ball
instead of the approved 10 KG (22 LB) calibration
weight. Call RTI technical support for more
information. 1-800-468-2321 X 1