yellow jacket 68860 Manual

Economy Charging Scale

Capacity 100 kilograms (220 Pounds)
Accuracy 0.5% of Reading +/- 1 Least Significant Digit
Resolution 2g, 0.005 lbs., 0.1 oz.
Power 4 x 1.5V ‘AAA’ Alkaline Batteries (6 VDC)
Battery Life 30 hours continuous use
Operating Temperature 0°C –60°C (32°F –140°F)
Weight 2.5 kg (5.5 lbs.)
Dimensions 26.7 cm x 26.7 cm x 4.5 cm (10.5” x 10.5” x 1.75”)
NOTE: To prevent damage, never exceed the rated capacity of the 68860.
If the weight applied to the weighing platform exceeds the maximum capacity of the
68860 (100 kg), a single “1” will be shown on the left side of the display. To prevent
damage to the load cell, immediately remove the weight from the platform.
The battery level indicator shows the relative strength of the batteries. Full power is
indicated by four bars. As the batteries are depleted, the number of bars displayed
decreases, until no bars are left. At this point, it is necessary to replace the batteries.
If the battery power drops to the point where the 68860 can no longer function accu-
rately, the alarm will beep 20 times and the power will turn off automatically. When
the batteries are replaced, and the scale is turned back on, the 68860 will resume op-
eration with all previous setting intact.
IMPORTANT: TO PREVENT DAMAGE TO THE 68860, CAREFULLY
OBSERVE BATTERY POLARITY AS MARKED INSIDE THE BATTERY
COMPARTMENT. DO NOT LEAVE DEAD BATTERIES INSIDE THE
CONTROL BOX. REMOVE BATTERIES IF THE 68860 IS NOT TO BE
USED FOR AN EXTENDED PERIOD OF TIME.
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To operate the 68860 as a basic weigh scale, place the weighing platform on a firm,
level surface and then perform the following steps:
1. If using a container to hold the objects being measured, place it empty on the
center of the platform.
2. Press the “ZERO” key to “zero-out” the scale. The display will read zero.
3. Place the material to measure in the container or on the center of the platform.
4. Read the weight on the display.
5. A positive number indicates the applied weight is greater than the zero value. A
negative number indicates the applied weight is less than the zero value.
6. Repeat steps 1 through 5 as necessary.
7. Turn the 68860 off by pressing and holding the “ON/OFF” key down until the
scale turns off.
8. To conserve battery life, the 68860 will turn itself off after 30 minutes of inactiv-
ity, unless it is currently running a program (see programming section below).
The last state of the 68860 will be restored upon power-up.
NOTE: When using the 68860, ensure the coiled cord does not touch the top of the
weighing platform, or inaccuracies may result.
A special feature of the 68860 allows the emptying or replacing bins or containers
used for weighing without affecting the weight shown on the display. This Hold
Mode may be used as follows:
1. Allow load to settle until display is steady.
2. Press the “HOLD” key. The HOLD indicator will turn on and the current weight
is now locked on the display.
3. Remove, empty, or replace objects, bins, or containers on the platform.
4. Wait 5 seconds for the new load to stabilize.
5. Press the “HOLD” key. The HOLD indicator will turn off. Measurements will
continue from where they left off prior to initiating Hold Mode.
With the 68860, a programmable threshold weight will sound an alarm. The alarm
will sound when the displayed weight (either positive for increasing weight, or nega-
tive for decreasing weight) equals the programmed weight. To program the alarm,
perform the following steps:
1. If measuring decreasing weight, place the objects or container with the objects or
material that will be removed on the weighing platform.
2. Press the “SET” key to start the SET Mode, indicated by the SET annunciator on
the LCD display.
3. Press and/or hold the “UP” or “DOWN” keys to set the desired alarm set point.
To change the set point faster, press the “FAST” key. This will activate the
FAST SET mode which will change the set point 10x faster than normal. Press
the “FAST” key again to return to the normal speed SET mode.
4. Press the “RUN/STOP” key. The display will automatically change to zero and
the RUN indicator will show to indicate that the program is running.

5. When the applied (or removed) weight exceeds the programmed amount, the
alarm will sound and the DONE indicator will flash on the display.
6. Press any key to stop the alarm.
7. To cancel the RUN mode at any time, press the “RUN/STOP” key.
NOTE: The RUN mode can only be initiated from the SET mode. If you cancel the
RUN mode by pressing the “RUN/STOP” key and wish to RUN again, press the
“SET” key (the previous set point will be restored) followed by the “RUN/STOP” key
again. The display will be zeroed when the program restarts. You may program the
SET mode without starting the RUN mode by pressing the “SET” key after setting the
program set point. The new value will be saved until next time the SET mode is acti-
vated. The “HOLD” key can be used during the RUN mode similarly as described in
the HOLD MODE section.
It is often convenient to know the relative amount of material (i.e. refrigerant) remain-
ing in a container (tank). The Tank Capacity Mode allows a continuous display of the
percentage of material remaining in a tank. In order to compute the percentage accu-
rately, the 68860 must be trained to know the weights of an empty and full tank. To
train the 68860 Tank Capacity Mode, perform the following steps:
1. While holding the “ZERO” key down, press the “SET” key. The SET TANK
indicator will turn on, and OFF will show on the display. This indicates that the
Tank Capacity Mode is currently off.
2. Turn the Tank Capacity Mode on by pressing the “UP” key. The display will
show ON, and the Alternate Numeric Display and Percent Indicator will turn on.
3. Press the “SET” key to proceed to the first step of training. 0% will flash in the
Alternate Numeric Display indicating that the weight of an empty container must
be registered.
4. Apply an empty container (or a load representing the weight of an empty con-
tainer) on the platform. Wait 5 seconds for the load to stabilize, then press the
“SET” key. 100% will flash in the Alternate Numeric Display indicating that the
weight of a full container must be registered.
5. Apply a full container (or a load representing the weight of a full container) on
the platform. Wait 5 seconds for the load to stabilize, then press the “SET” key.
This completes the training process, and the SET TANK indicator will turn off.
6. From this point forward, the Alternate Numeric Display will show the percent of
material remaining in the container from 0% to 100%.
NOTE: The 100% weight must be larger than the 0% weight by at least 200g (0.44
lb). If not, “Err” will show on the Alternate Numeric Display. To clear the error,
retrain as above using a 100% weight that is at least 200g larger than the 0% weight.
During training, the ZERO key may be used to assist in setting the 0% and 100%
values. This will have no effect on the training, as the Tank Capacity Mode relies on
absolute, not relative, weights.
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Perform the following steps to turn the Tank Capacity Mode Off:
1. While holding the “ZERO” key down, press the “SET” key. The SET TANK
indicator will turn on, and ON will show on the display. This indicates that the
Tank Capacity Mode is currently on.
2. Turn the Tank Capacity Mode off by pressing the “DOWN” key. The display
will show OFF, and the Alternate Numeric Display will turn off.
3. Press the “RUN/STOP” key to return to normal operation.
Turning the Tank Capacity Mode On without Re-training
The Tank Capacity Mode can be turned back on without retraining. The 68860 will
remember the previous 0% and 100% set points until the unit is re-trained as above.
To turn the Tank Capacity Mode on without re-training, perform the following steps:
1. While holding the “ZERO” key down, press the “SET” key. The SET TANK
indicator will turn on, and OFF will show on the display. This indicates that the
Tank Capacity Mode is currently off.
2. Turn the Tank Capacity Mode on by pressing the “UP” key . The display will
show ON, and the Alternate Numeric Display and Percent Indicator will turn on.
3. Press the “RUN/STOP” key to return to normal operation.
Because of its high stability and accuracy, the 68860 is ideal for automotive, commer-
cial, and residential A/C refrigerant charging and recovery. Its high resolution also
allows accurate critical charging of small refrigeration systems such as commercial
freezers. To use the 68860 for refrigerant charging, perform the following steps:
1. Press the “UNITS” key to set the desired display units.
2. If desired, set up the Tank Capacity Mode as described in the Tank Capacity
Mode section. This will allow you to know at any time the percent of refrigerant
remaining in the refrigerant cylinder.
3. Carefully set the refrigerant cylinder on the weighing platform.
4. Attach the cylinder to the charging manifold via a utility hose. Open the cylinder
valve and purge air from the hose.
5. Program the desired refrigerant charge weight as described in the Programming
section. Activate the program by pressing the “RUN/STOP” key.
6. Open the manifold valve(s).
7. The display will indicate the weight charged as negative, indicating refrigerant is
being removed from the charging cylinder.
8. If the refrigerant cylinder empties while charging:
 Close all valves.
 Press the “HOLD” key to “freeze” the display (as described in the Hold
Mode Section).
 Replace the empty refrigerant cylinder with a full one. Attach and purge hoses.
 Press the “HOLD” key to exit the Hold Mode.
 Open manifold valve(s). Charging will continue from where it left off.
9. When charging is complete, the alarm will sound. Close all valves and press any
key to cancel the alarm.
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As delivered from the factory, the 68860 beeps when turning on and when keys are
pressed. This sound can be muted as follows:
1. Make sure the power is on.
2. While holding the “ZERO” key, press the “ON/OFF” key. The musical symbol
on the left of the display will turn off to indicate that the sound has been muted.
Repeat steps 1 and 2 to turn the sound back on.
NOTE: The Mute function only affects the power-on and key-press beeps. It has no
effect on the alarm.
LCD Display Prop Stand
(Extended)
Keypad
Weighing Platform
Coiled
Cord
Mounting
Hooks
Speaker
Grill
Prop Stand
(Retracted)
Optical Port
(Not used on
this model)
Battery
Cover
Storage
Dock
Control Box Rear View
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B
I
H
C
F D
A
G
K
JJ L P
M N
E
Item Function
A Main Numeric Display
B Alternate Numeric Display
C Tank Capacity Percent Indication
D Units Indicators
E Sound Mute Indicator
F “Floating” Negative Indicator (indicates weight removed
from platform)
G Battery Level Indicator
H Fast Adjustment Indicator
I Set Mode Indicator
J Tank Capacity Mode Indicator
K Run Mode Indicator
L Hold Mode Indicator
M Program Complete Indicator
N Calibration Mode Indicator
P Resolution Indicator
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Copyright © 2013
Phone: [phone] or [phone]
Fax: [phone] or [phone]
E-Mail: [e-mail]
Website: www.yellowjacket.com
YELLOW JACKET Products Division
Ritchie Engineering Co., Inc.
10950 Hampshire Avenue South
Bloomington, MN 55438-2623, USA
YELLOW JACKET electronic products are covered by a one year warranty from the
date of sale. All electronic products must be returned to Ritchie Engineering. If the
product is found to be defective, Ritchie Engineering will repair or replace at our dis-
cretion. Over-the-counter exchanges will not be authorized.
Press for power-on, press/hold for power off
Press to cycle through displayed units –kilograms, pounds,
pounds and ounces, ounces.
Press to select low(0.5oz/0.020lb/10g), medium
(0.2oz/0.010lb/5g), or high(0.1oz/0.005lb/2g) display resolution
Press to “zero-out” current reading on display
Use to adjust various settings and programming values
For faster adjustments. Used in conjunction with and
“Freezes” display
Starts programming mode
Activates/Deactivates stored program