WIKA operating instructions, model CTH7000
EN
24
08/2020 EN/BG
4. Design and function
1
Zero offset value
2
Absolute value (flashing)
3
Zero mode indication alternates with the conversion method
Zero mode may be used on differential measurements (A – B). In this case, the difference
is set to zero at the time the key is pressed and the absolute value in the example above,
is replaced by the absolute difference value.
To cancel the relative measurement mode, press the
Zero
[0]
key again. Zero mode is
cancelled when power is turned off.
4.3.2.3 Selecting run/hold mode [
II
]
Instrument measurements stop completely when hold mode is active. This is indicated
on the bottom-left of the display where hold mode indication alternates with the current
conversion method, providing a flashing indication. Hold mode may be used when the
CTH7000 is in differential mode.
1
Hold mode indication alternates with the conversion method
Press the
Hold
[
II
]
key to alternate between run and hold modes. Hold mode is
cancelled when power is turned off.
4.3.2.4 Backlight key [
☼
]
Press the
Backlight
key [
☼
] to illuminate the display. Once on, the backlight will go
automatically off after about 10 seconds; alternatively, press the key again to turn it off.
When the CTH7000 is battery operated, using the backlight will dramatically
reduce battery life (by about 30 % if used continually at full-brightness).
The brightness level can be set on the settings menu (see later section). Reducing the
brightness value will increase battery life when the backlight is used.
1
