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53IIB/54IIB
Users Manual
2
Table 1. Safety Information
W Warning
A Warning identifies conditions and actions that pose hazards to the user. To avoid electrical shock or
personal injury, follow these guidelines:
• Before using the thermometer inspect the case. Do not use the thermometer if it appears damaged.
Look for cracks or missing plastic. Pay particular attention to the insulation around the connectors.
• Disconnect the thermocouple(s) from the thermometer before opening the case.
• Replace the batteries as soon as the battery indicator (
) appears. The possibility of false readings
can lead to personal injury.
• Do not use the thermometer if it operates abnormally. Protection may be impaired. When in doubt,
have the thermometer serviced.
• Reflective objects result in lower than actual temperature measurements. These objects pose a burn
hazard.
• Do not operate the thermometer around explosive gas, vapor, or dust.
• Do not connect to voltages > 30 V ac rms, 42 V pk, 60 V dc from earth ground.