Appendix 2 - Hart ® Additional Functions; Changing The Target Gas - Honeywell Searchpoint Optima Plus Operating Instructions Manual

MAN0905_Issue 7_07/17
HART
Note: The instructions that follow assume that a suitable HART
Searchpoint Optima Plus and that the user is logged in with Level 1 access privileges.
Caution: After changing any parameter, poll the Searchpoint Optima Plus and verify that the received
value is correct.

20.1 Changing the Target Gas

Searchpoint Optima Plus is supplied with look-up tables for several different gases. If required, the gas
table can be changed to a different target gas.
If a new gas table is selected, the Searchpoint Optima Plus MUST be re-calibrated using
1. Select Device Setup.
2. Select Gas Configuration then Gas Selection.
3. Select Choose Gas.
Searchpoint Optima Plus stores a number of gas tables up to a maximum of 10. These include the Standard
Gases (Methane, Ethane, Propane, Butane for Hydrocarbon units, Ethylene for Ethylene units) plus any
Special Gases that have been specified when the unit was ordered. (For a full list of gases available to order
please see Specification).
Caution: Searchpoint Optima Plus units contain a gas table called Linear 20R which is a factory
setting. DO NOT select this gas table.
The new gas is chosen by selecting First Gas, Last Gas, Next Gas or Previous Gas. To assist in navigating
to find the required new gas, please see the example table below: -
For example, if the unit is currently configured for propane, to change to methane select First Gas. If it is
configured for butane, to change to propane select Previous Gas.
Note: The order of the gas tables in the Searchpoint Optima Plus is by part number, therefore the
standard gases may not be the first listed.
20. Appendix 2 –
Additional Functions
®
WARNING
the target gas.
Location Hydrocarbon Units
1 Methane
2 Ethane
3 Propane
4 Butane
5 Special Gases
6 Special Gases
7 Special Gases
8 Special Gases
9 Special Gases
10 Linear 20R (DO NOT USE) Linear 20R (DO NOT USE)
Searchpoint Optima Plus with optional HART
host (handheld or PC) is connected to the
®
Ethylene Units
Ethylene
Special Gases
Special Gases
Special Gases
Special Gases
Special Gases
Special Gases
Special Gases
Special Gases
90
output
®
Operating Instructions
2108M0550