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4.7C Carbon Monoxide Monitor Input – Fig. 4.3C (overleaf)
Connect the milliamp source in place of the 'CO I/P' connections. Switch on.
CO
/
2
CO
%CO
(Inferred)
2
or
%CO
not available
2
4 Times
OP1 ReTx %O
Omitted if respective
thermocouple
temperature is
preset
OP2 ReTx %O
Omitted if respective
thermocouple
temperature is
preset
Single retransmission versions
Select the Carbon Dioxide/Carbon Monoxide
Operate for approximately three seconds to gain access to the electrical
calibration procedures within the Carbon Dioxide/Monoxide page.
Advance to electrical calibration procedures.
N o t e . 'x x x x x x' in the following illustrations is a numerical code used for
software analysis during manufacture and can be disregarded.
Continued overleaf.
ANALOGUE RETRANSMISS
off
2
Cell
T
on
Flue
T
Air
T
Ef 'ncy
With Security Access
Without
Security
Access
off
2
Cell
T
on
Flue
T
Air
T
Ef 'ncy
Fig. 4.2C Analogue Retransmission, Electrical Calibration
Refer to Overall Programme
Chart – Fig. 10 in ZMT/0011
Analogue Retransmission
Calibration Parameters
Repeat for other
retransmission
output(s), as
applicable
page.
SECURE PARAMETERS
OP1 ReTx %O
or
2
Cell
T
Flue
T
Air
T
Ef 'ncy
Vary Lo OP1
& ENT
Vary Hi OP1
& ENT
OP1 Zero
x x x x x x
OP1 Span
x x x x x x
OP1 ReTx
on
or
off
or
19
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