E8500 Instruction & Operations Manual
version 1.017
Page 27 of 49
NOTE: Setting the OXYGEN REFERENCE to a value other than TRUE affects
values of emissions concentrations in PPM and MGM. It does not affect
values in #/B or GBH.
8) PUMP: Pump status is displayed:
a) AUTO - Automatic sample and dilution control mode is selected, and typical flow-
rate is shown.
b) SAMPLE - Pump remains in sample mode (dilution disabled), and the current
duty cycle of the pump is shown. The duty cycle
***
can be set with the
UP /
DOWN & OK
keys.
c) DILUTE - Pump remains in dilution mode, and the current duty cycle
***
of the
pump is shown.
d) PURGE – Purge mode is enabled, and the sample pump is turned off.
e) OFF – All pumps are turned off.
***The manufacturer strongly suggests not changing the duty cycle values without consulting the
manufacturer first.
9) DILUTION DUTY: This controls the power to the dilution pump. The manufacturer
strongly suggests not changing this duty value without consulting the manufacturer
first.
10) WATER DRAIN: This controls how often the analyzer’s peristaltic pump should drain
water from the small water trap of the conditioning system
11) CHILLER DUTY: This setting adjusts the temperature of the thermoelectric chiller.
See CHAPTER 5.
12) DILUTE CO: This sets the CO concentration above which the dilution system will be
engaged. The default value is 5000 PPM.
13) PURGE CO / USE CO-IR: This sets the maximum CO concentration for the
electrochemical sensor. Higher concentrations will engage a purge cycle for the CO
sensor to prevent if from becoming saturated. Factory default is set at 7000 PPM. If
you have an NDIR infrared system, the infrared CO data will be used above this
point. With the infrared system, CO is always displayed as a percentage (%).
14) THERMAL EFF: Selects the thermal efficiency of the engine. See MEASURE UNITS
above.
15) DISPLAY CONTRAST: Select the best value for viewing the LCD screen.
16) BAUDRATE: The speed of the Bluetooth port is set here.
