Isotech TTI-7-R, Operator'S Handbook Manual

Page: 48 / 120

Operating the TTI-7-R
5.5 Selecting Screen Display Options
This section describes how to modify information displayed by the TTI-
7-R . It covers:
5.5.1 Selecting measurement units
Press 4/UNIT to sequence between the three measurement units
available. These are Celsius
(°C), Fahrenheit (°F) and Kelvin (K). The
measurement unit selected is applied to all temperature displays,
including logged data.
5.5.2 Selecting display resolution modes
Press +-/RES to toggle between the two display resolution modes
available. The table below gives the display resolutions for
thermocouple and PRT inputs. The TTI-7-R defaults to low resolution
mode when first switched on.
High Low
Thermocouple 0.01 0.1
PRT 0.001 0.01
5.5.3 Selecting relative temperature measurement
In Zero mode, the TTI-7-R displays temperature relative to a fixed
reference point. Press 5/ZERO to store the current display value; this
will be subtracted from all subsequent readings. To cancel Zero
mode, either press 5/ZERO again, change the input channel, change
the sensor type or turn off the power.
When Zero mode is enabled, a Zero message is displayed in the
bottom left hand corner of the screen.
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