TESTO 177 User Manual

4. Display and control elements
11
4.3 Display sequence
Depending on the mode, different information can be displayed in
the data loggers with display. You will find a detailed description of
the information which can be called up in the short version of the
instruction manual enclosed with every data logger.
4.4 Button functions
In all modes in data loggers with display:
Press the button to switch between the displays.
Press the GO button to activate an intermediate measurement.
Wait mode and Key start start criterion programmed:
Press the GO button for approx. 3 s to start the measuring
program.
- The measuring program starts, Record appears in the display
(if available) and the Status led flashes five times.
Record mode:
Press the GO button for approx. 3 s to set a time mark.
- The Status led flashes five times.
Time mark: This function enables you to monitor and read
out/print out the memory content from a specified point in time
( time mark ) without having to reprogram the data logger. The
readings from Start ( All readings ) are also saved.
The readings from Start ( All readings ) or From time mark can be
read out on the testo 575 fast printer or the testo ComSoft
software.
The readings from Start ( All readings ) can be read out on the
testo 580 data collector.
Only one time mark can be set. If the GO button is pressed for
approx. 3 seconds in the Record mode, the existing time mark
is deleted and a new time mark is set up.
- The readings (max./min. values, exceeding of alarm values)
are shown in the display (if available) from the set time mark.

TESTO 177 Specifications

General

Temperature resolution	0.1 °C
Humidity accuracy	±2 %RH (+2 to +98 %RH) ±3 %RH (remaining range)
Humidity resolution	0.1 %RH
Battery life	Typically 3 years at +25 °C and 15-minute measurement cycle
Measurement Parameters	Temperature, humidity
Display	LCD
Probe Type	Integrated