Rear panel connections – Teledyne 3060e - Ultra Trace oxygen analyzer User Manual

Page 54

4-6

Model 3060E

Chapter 4

Teledyne Electronic Technologies

Analytical Instruments

NOTE: The LCD backlight enhances the ability to read the display menu

and will automatically shut off after usage. Press the red key to turn
the backlight back on.

Sensor Compartment Temperature Controller

The Ultra Trace sensor is housed in an insulated compartment oven located at
the front of the analyzer. See Figure 4-3. The temperature of the sensor housing
is controlled at 28 ±2°C by a proportional integrative derivative (PID)
controller located behind the rear sample system cover plate. Input from a
resistive thermal device (RTD) located in the sensor housing is used to regulate
two 25 W heaters. The temperature controller is shown in Figure 3-11 and the
heaters are shown in Figure 4-3.

Ultra Trace Sensor Electrolyte Temperature

The temperature of the Ultra Trace sensor is continuously monitored and
displayed in the upper right hand corner of the LCD screen by an input from a
thermistor inserted into the sensor from the Ultra Trace sensor top mounting
plate (see Figure 2.2). The nominal value of electrolyte temperature is between
25-31°C (after the oven temperature has stabilized). If the displayed tempera-
ture is outside this limit and the ambient temperature is below 32° C, replace
the thermistor.

Rear Panel Connections

All the gas inlet and outlet connections, water reservoir inlet and water drain,
compressed air inlet, power in, fuse selection, signal out, range identifying
output and RS 232 port are located at the rear of the analyzer. See Figure 4-6.

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Inlet Connectors
There are four inlet connectors on the back panel: span gas inlet,
sample gas inlet, water reservoir, and compressed air inlet.

•

Outlet Connectors
There are four outlet connectors, or vents: sample/span outlet, the
bypass vent, reservoir drain, and sparger vent.

•

AC Power In and Fuse Block
The AC power in is the AC connection where the power cord is
plugged in. Above the power cord connection in the same module is
the voltage select/fuse block panel. See Chapter 3, paragraph Volt-
age Selection/Fuse Changing for further details.