3
Morrison Bros. Co. - Dubuque, IA - 800-553-4840
918---0188 PP rev8.12.13
!
Operation
Steps
1. To determine the height of fl uid in the tank, read the position of the gauge hands. Interpolate if necessary.
Note: Short hand indicates feet (or meters) and long hand indicates inches (or cm). See Figures 2 and 3
above.
2. The tank manufacturer’s chart will be required to translate fl uid height into fl uid volume.
3. Before a tank fi ll is initiated, the alarm should be checked for proper operation and suffi cient loudness by
pressing the Test/Cancel button. When the button is released, the alarm should cease.
Refer to 918 Series Alarm Installation, Operation and Maintenance Instructions (918S--0142 PP)
4. If the alarm sounds while the tank is being fi lled, immediately halt fi lling operations.
Refer to 918 Series Alarm Installation, Operation and Maintenance Instructions (918S--0142 PP)
Maintenance
This gauge should be maintained per applicable codes, or at least once each year.
Refer to 918 Series Alarm Installation, Operation and Maintenance Instructions (918S--0142 PP) for
maintenance instructions for the 918 Series Alarm
WARNINGS
• Fire Hazard – Death or serious injury could result from spilled liquids.
• You must be trained to install or maintain this alarm. Stop now if you have not been trained.
• Any modifi cation to this gauge other than those stated in these installation instructions will void the
product warranty.
• This device is intended to be used as an auxiliary warning to the operator of a possible overfi ll situation
and should not be the only system in place to prevent a tank from overfi lling. It is the sole responsibility
of the operator to continuously prevent any spillage regardless of the situation or status of the gauge.
• Install in accordance with all applicable local, state, and federal laws.
• For your safety, it is important to follow local, state, federal and/or OSHA rules that apply to working
inside, above, or around the storage tank and piping area. Use all personal protective equipment required
for working in the specifi c environment.
• Tanks could be under pressure. Vapors could be expelled from tank vents, piping, valves or fi ttings while
performing installation. Vapors could catch fi re or cause an explosion. Avoid sparks, open fl ame, or hot
tools when working on gauge.
• Use a dampened cloth when cleaning the clear front cover of the gauge or 918 alarm box to prevent
static buildup and discharge.
• In the event of malfunction, contact Morrison Bros. Customer Service.
Steps
1. Visually inspect the gauge and alarm for damage or excessive wear. If either is found replace the gauge or
alarm.
2. If necessary, clean the clear front cover of the gauge or alarm box with a damp cloth.
3. Measure the fl uid height and correlate it to the tank manufacturer’s volume chart to verify the gauge volume
reading. If readings do not match adjust the gauge setting according to the installation instructions.
4. Test the battery level and overall operation of the 918 Series Alarm. Refer to 918 Series Alarm Installation,
Operation and Maintenance Instructions (918S--0142 PP).
5. Inspect the warning tag located near the tank fi ll and off-loading area. If the tag is damaged or diffi cult to
read, contact Morrison Bros. at (800) 553-4840 for a free replacement tag.
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