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MAN0604_Issue 09_02-2013
2110M8030
4.2 START-UP
Switch on the power supply to the Apex Transmitter Unit.
With a correctly installed Certified Sensor the following information is shown sequentially on the
LCD screen:
The Transmitter Unit initially waits for the Certified Sensor to stabilise, during which period the
4-20mA output is inhibited (2mA). Wait for 15 minutes to ensure sensor stabilisation has occurred
before continuing.
If the sensor does not stabilise during the initialisation period (15 minutes), one of the fault (F) or
warning (W) alarm messages shown in Section 4.6 is displayed.
When the Certified Sensor stabilises, the LCD screen shows the current Gas Reading together with
the gas identity, full scale, and the units of measurement."
Note: If the current Gas Reading exceeds full scale the displayed reading will be replaced with
' >>>>'."
This information is also transmitted on the 4-20mA output and optionally on the digital network if a
communications board is fitted in the Transmitter Unit.
Note: If the Transmitter Unit has a LonWorks Communications Board fitted then the unit will, at
some stage, need to be bound to the LonWorks network. To do this carry out the LonWorks
binding procedure described at the end of this chapter.
4.3 PASSWORDS
Caution:
Always store passwords in a secure place. Do not let unauthorised users access
to them.
The different parts of the high-level menu structure are protected from different levels of user by
assigning a set of three different passwords.
The three password levels correspond to the following types of system user:
•
Level 1
•
Level 2
•
Level 3
4. OPERATION
HONEYWELL
ANALYTICS
CONNECTING
System operator
System technician
System administrator
INITIALISING
0
CO
100 ppm
51
Apex
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