AUTOFLAME Mk8 MM Installation And Commissioning Guide

2 Expansion Options
Page 22 Mk8 MM Expansion Features Installation and Set-Up Guide 04.09.2016
Exp
Option
Default Range Description
140 0 Fully Metered Function
The fully metered function maintains the commissioned heat input and fuel-
air ratio based on 4-20mA signals from the fuel and air mass or volume
flow meters. External water level sensor and 4-20mA fuel flow feedback
must be disabled.
0 Disabled
1 Enabled
141 0 Fuel Flow Meter Type
The fuel-air ratio is derived from the mass flow rates of the fuel and air
going into the burner. The fuel flow meter is wired to terminals EX+ and EX-,
and the 4-20mA signal is scaled by setting expansion option 142. For
setting 0, a volume flow meter is used and a displayed mass flow rate is
calculated using either internal constants or via measured
temperature/pressures. For setting 1, a mass flow meter is used to the
display the mass flow rate, when using a fuel mass flow meter, expansion
options 145 and 147 must be set to 0. Setting 2 is the same as setting 0 but
for a volume meter with square root extraction included.
0 Volume flow meter
1 Mass flow meter
2 Volume flow meter (with square root extraction)
142 0 Fuel Flow Meter Scaling
The fuel flow meter is scaled by setting the flow rate at 20mA feedback
from the flow meter.
0 – 65535 0 – 65535 m
£
/hr (0ft
3
/hr)
143 - Air Flow Meter Type
The air flow meter is wired to terminals MF and F-, and the 4-20mA signal is
scaled in expansion option 144. For setting 0, a volume flow meter is used
and a displayed mass flow rate is calculated using either internal constants
or via measured temperature/pressures. For setting 1, a mass flow meter is
used to the display the mass flow rate, when using a fuel mass flow meter,
expansion options 146 and 148 must be set to 0. Setting 2 is the same as
setting 0 but for a volume meter with square root extraction included.
0 Volume flow meter
1 Mass flow meter
2 Volume flow meter (with square root extraction)
144 0 Air Flow Meter Scaling
The air flow meter is scaled by setting the flow rate at 20mA feedback from
the flow meter.
0 – 65535 0 – 65535 m
£
/hr (0ft
3
/hr)
145 0 Fuel Temperature Sensor Enable
The fuel temperature sensor is wired to terminal T3. This cannot be used
with the mass flow meters for fully metered, or at the same time as
steam/hot water flow metering, see expansion options 141 and 120.
0 Disabled
1 Enabled
146 0 Air Temperature Sensor Enable
The air temperature sensor is wired to terminal T2. This cannot be used with
the mass flow meters for fully metered, or at the same time as steam/hot
water flow metering, see expansion options 141 and 120.
0 Disabled
1 Enabled

AUTOFLAME Mk8 MM Specifications

General

Brand	AUTOFLAME
Model	Mk8 MM
Category	Controller
Language	English