Model 9060Z Manual
All of the items in this list are selected as the default setting. Any of these items can be disabled from the common alarm by pressing the ENTER key, and they will then appear on the list in the other alarm relays.
7.2.22 Operation of the Alarm Relays when an Alarm is Accepted
An option is available to in the commissioning menu to change the operation of the alarm relay when an alarm has been accepted. The states for the alarm relay contacts are shown in the following table –
Alarm state | Accepted Relay hold setting‐ | Accepted Relay hold setting‐ |
| Enabled | Disabled |
No alarm condition | Closed circuit | Closed circuit |
New alarm | Open circuit | Open circuit |
All alarms accepted | Open circuit | Closed circuit |
Alarms self cleared | Closed circuit | Closed circuit |
The default setting is ‘Enabled’ after a cold start.
7.2.23 Selecting the Correct Fuel
The 9060Z transmitter can calculate several measurements that are based on the oxygen reading and the temperature of the process gas. These calculations also require some details about the chemical makeup of the fuel. The additional calculations are:
| Oxygen deficiency |
| The volume of oxygen required to bring the combustion back to | ||
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| stoichiometry | |
| Combustibles |
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| This theoretical scale is equivalent to a combustibles analyzer |
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| Carbon dioxide | The calculated maximum level of CO2 in the combustion gas | |||
| (maximum dry) |
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| |
| Combustion |
| Requires a stack thermocouple and so is only available in single probe | ||
| efficiency |
| mode |
Select the required fuel in function 50 by using the OPTION keys and then press the ENTER key. The table of values in the next 6 functions will be updated for that fuel.
7.2.24 Reference Air Pump Options
Normally the reference air is supplied from the transmitter using the internal pump. The default option is 5.00v.
| Function | Options |
57 | Reference Air Pump | External or Internal |
58 | Internal Pump Voltage | Pump voltage setting, between 2.5 and 5.00 in 0.25v steps |
59 | Reference Air RH% | If external is selected, set the RH level. (5% if instrument |
|
| air is used) |
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