Chapter 1
Before You Start
Contacting Ritchie
To order accessories, receive assistance, or
locate the nearest YELLOW JACKET distributor.
Safety Information
Use the instrument only as specified in this
manual. Otherwise, the protection provided by
the instrument may be impaired. Refer to safety
information in Table 1-1.
A Warning identifies conditions and actions that
pose hazards to the user. A Caution identifies
conditions and actions that may damage the
instrument or the equipment under test.
Table 1-1. Safety Information
Warning
To avoid personal injury or death, follow these
guidelines:
Most governments and legal authorities re-
quire that HVAC technicians be trained and
certified in the safe and proper operation of
HVAC tools, such as this instrument. Since
this tool may be connected to many types of
equipment through a limitless combination
of hoses and fittings, proper training is the
most important element of using this tool
safely.
Read the entire Users Manual before using
the instrument.
Use the instrument only as described in the
Users Manual, otherwise the protection pro-
vided by the equipment may be impaired.
Do not use the instrument if it is damaged.
Before you use the instrument, inspect the
case. Look for cracks or loose components.
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Table 1-1. Safety Information
Warning
The instrument contains no internal user-
serviceable parts other than batteries that
may be accessed through the battery door.
Do not open the instrument other than open-
ing the battery door. Have the instrument
serviced only by Ritchie Engineering Co. or
authorized service centers.
Do not use the instrument if it operates ab-
normally. Protection may be impaired. When
in doubt, have the instrument serviced.
Refer to warnings supplied with batteries
acquired for use in this instrument. If the bat-
teries are not supplied with warnings, obtain
them from the manufacturer or supplier.
Do not operate the instrument or service bat-
teries around explosive gas, vapor, or dust.
Various refrigerants have been intentionally
excluded for very significant safety reasons.
Never use refrigerants in this instrument that
are not listed in the Set-up menu.
The refrigerant database in this unit may
include refrigerants classified as flammable.
If such refrigerants are selected, the operator
may need additional certifications and/or
training. Consult your government and legal
authority and comply fully with all require-
ments.
Always wear eye and skin protection when
working with refrigerants. Escaping refriger-
ant vapors will present a freezing danger.
Do not direct refrigerant vapors venting from
hoses towards the skin.
Maximum Working Pressure: High Side: 700
psia (4.83 MPa)
Maximum Working Pressure: Low Side: 350
psia (2.41 MPa)
Because this instrument allows for various
inputs including electrical and mechanical,
care must be taken to observe any ways that
an electrical shock hazard could develop.
Example: Wet or humid conditions, along
with a damaged thermocouple or vacuum
sensor, could allow an electrical path across
the instrument and over wet hoses. Keep all
interconnected equipment clean, organized,
and in proper condition. Do not use the in-
strument if you are not qualified to recognize
potential electrical faults.
cont. next page.......
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