Teledyne Max-5 - Combustion efficiency analyzer - Manual (Page 7)

Temp Key (
°F or °C). This key, when pressed, determines which of the two available
temperature scales (toggles between degrees Fahrenheit or degrees Centigrade) will be used to
display temperature readings. See “Initial Calibration/Automatic Calibration” - “Temperature”.
O
2
/ CO
2
. Because both the oxygen and carbon dioxide readings occupy the top row of the
LCD, you press this key to display one or the other. To get a valid CO
2
reading, you must select
the proper fuel (see “FUEL” below).
COMB/TEMP. You select either the combustibles or the temperature readings for display by
pressing this key. The readings appear in the center row of the display.
CO/EFFIC. You press this key to toggle between the carbon monoxide and calculated
efficiency readings. The readings appear in the bottom row of the display.
FUEL. This key is primarily used for CO
2
calculation and efficiency readings. You must
choose one of the four pre-selected fuels (#2 fuel oil, #6 fuel oil, natural gas, or solid fuels such
as coal) so that the computer calculations will be valid. Pressing the FUEL key causes the fuel
selection (across the bottom of the display) to toggle through the four selections. When you see
the fuel that you are using, simply leave it that way, and the calculations will be valid for that
fuel.
CAL. Calibration is automatic for O
2
. MAX 5 also includes auto-zeroing for Carbon Monoxide
(CO) and combustibles, so the user need only set the spans. Calibration settings remain in
memory even when the power is off.
TELEDYNE LOGO. Used to exit from calibration procedures and used in conjunction with
calibration functions.
(INSERT FIGURE 3)
BACK PANEL CONTROLS
A. Thermocouple
Connections for type “K” thermocouple supplied in probe (type “J”
optional).
B. Vent.
C. AC
Power connection for recharging NiCad batteries, which provide up to eight hours
of operation.
D. Battery
Power ON-OFF switch.
E.
RS-232-C Serial output to provide:
* short-form Operations Manual
* up to 20 sets of stored data