ThermoWorks 9135-156 HART SCIENTIFIC 3-POINT IR CALIBRATOR - Manual (Page 15)

5 Parts and Controls
The user should become familiar with the 9135 calibrator and its parts. Refer to
Figures 1 and 2 as you read the following sections.
5.1 Back Panel
Power Cord - The power cord attaches to the back of the instrument. It plugs
into a standard 115 VAC (optional 230 VAC) grounded socket.
Power Switch - The power switch is located on the back panel of the calibra-
tor. The switch is either on or off. The on position is for normal operation. The
off position disconnects power to the entire unit.
5.2 Bottom
Prop - The prop is located on the bottom of the 9135 and lays flat against the
bottom of the calibrator when not in use. It can be swung down to incline the
instrument.
Supply Voltage Switches - These switches are set to 115V or 230V depending
on the supply voltage (Section 4.3).
5.3 Top Panel
The top panel is illustrated in Figure 1.
IR Target - The large hole in the top panel gives access to the IR target. The IR
target is a metal plate that is coated with a special paint with an emmisivity of
0.95. The IR target is controlled at the selected set-point.
Set-point Select - The button on the top panel is used to select one of the three
set-points. Pressing the button selects the next set-point in the order
50°C-100°C-150°C then back to 50°C. The LED corresponding to the selected
set-point will light.
Set-point Indicators - The three yellow LEDs on the top panel correspond to
the three set-points. When the power is on one LED will glow indicating which
set-point is currently selected.
Target Ready Indicator - The green LED shows when the temperature of the
IR target is reached and is stable. Immediately after the power is switched on or
a new set-point is selected the ready indicator will be dark. It will light up when
the temperature has stabilized at the set-point. This indicates the instrument is
now ready to be used for calibration.
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5 Parts and Controls
Back Panel