Model 7003M

Operator Manual

748223-K June 2002

d.Automatic Return to RUN Mode

If no keys are pressed for five minutes, the instrument will automatically return to the RUN Mode, except when in Zero Offset, HOLD, or DIAGNOSTICS Modes.

CAUTION

OXYGEN WILL NOT BE MONITORED

The instrument will remain in HOLD or DIAGNOSTICS Modes until the operator returns it to the RUN Mode or other operation.

e.Preventing Unauthorized Access

The Model 7003M is equipped with a security feature to prevent unauthorized tampering with the instrument settings. The instrument is shipped from the factory with the security feature disabled. It can be enabled or disabled at any time.

Security access is not required to:

Display sensor data

Acknowledge alarms

Reveal security code

Security access is required to:

Calibrate with span gas

Access options and diagnostics

Change operation parameters

Enable or disable alarms and ON/OFF-Control

Disable or change the security code

After the security code is entered, the operator can change any instrument setting and can go back and forth to the RUN Mode without having to enter the code again.

If security is enabled, and the instrument is left in the RUN Mode for five minutes, security will automatically be re-activated. Within this five minute period, anyone can access the functions without re-entering the security code.

f.Sensor Equilibrium

When a new sensor is installed, power up the instrument and let the sensor stabilize for about 5 hours before calibrating it.

If the oxygen sensor is calibrated at a relatively high oxygen concentration, such as with ambient air (typically 20.95%) and then is exposed to a low oxygen level, a longer equilibrium time period may be required for the sensor to equilibrate. This time period depends on the monitoring concentration level and how long the sensor was operated at the higher level.

Rosemount Analytical Inc. A Division of Emerson Process Management

Operation 3-7