TESTO 177 User Manual

The data loggers have the defaults below:
The data logger with the above factory defaults can be used
immediately.
If you wish to use other measurement criteria, you will have to
program your data logger in accordance with your requirements
using testo ComSoft software (See 7. Programming, P. 14).
External probes can be attached to many of the data loggers (See
6. Connecting probes, S. 13).
3. Initial operation
8
Type 177-T1 177-T2 177-T3 177-T4 177-H1
Start criterion Key start
Measuring rate 5 Min. 5 Min. 5/1 Min.* 3 Sek. 1 Min.
Stop criterion Wraparound Until memory Wraparound
memory is full memory
Alarm values Respective measuring range full-scale values (See Technical data)
Display -On
LEDs Status led (green): Off / Alarm led (red): On
Measurement channels All channels switched on **
Fast printer- / Stop: Switched on
data collector function New programming: Switched on
Protocol name testo177-{Type}_{Serial number}
* Depending on event: switch (e.g. door contact) open or not connected/switch closed
** testo 177-T4: T/C -Type “K” programmed

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