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11
Calibrated milliamp source (0 to 20mA to 2 decimal places)*
Milliammeter (0 to 20mA range)**
*
Required only if the carbon monoxide monitor input is to
be calibrated.
** Required only if analogue retransmission output(s) are to
be calibrated.
4.2C Setting Up the Thermocouple and Oxygen Inputs
Note. The Oxygen input does not require any initial setting up.
4C ELECTRICAL CALIBRATION
4.1C Equipment Required for Calibration
Calibrated millivolt source (0 to 300mV in 0.01mV increments,
0.02% grade)
Accurate mercury-in-glass thermometer (0 to 50
°
C)
Standard type K thermocouple tables (BS4937 pt. 4)
no & ENT
Basic Analysers
Select the Commissioning Pag
.
Cell Thermocouple
Select cell thermocouple.
Store.
Return to top of Commissioning Page (basic analysers).
Flue Thermocouple
Select flue thermocouple (if flue thermocouple input is to be calibrated).
Advance to next parameter.
COMMISSIONING
Flue T/C? yes & ENT
➞
➞
Store.
Air Thermocouple
Select air thermocouple (if air thermocouple input is to be calibrated).
Enter
Enter
Advanced
Analysers
Advance to thermocouple parameters.
12 Times
or
Advance to next parameter (advanced analysers).
Return to top of Commissioning Page.
o r
➞
yes
▲
& ENT
➞
yes
▲
& ENT
➞
yes
▲
& ENT
no & ENT
Cell T/C? yes & ENT
➞
➞
no & ENT
Air T/C? yes & ENT
➞
➞
Store.
Enter
Proceed as detailed in Section 4.3C overleaf.