Performing The Measurement; Measuring - TESTO 570 Instruction Manual

6.2.

Performing the measurement

Risk of injury caused by pressurized, hot, cold or toxic
refrigerants!
> Wear protective goggles and safety gloves.
> Before applying pressure to the measuring instrument: Always
> Before each measurement check the refrigerant hoses for
> Comply with the permissible measuring range (-1...50 bar).
6.2.1.

Measuring

✓ The actions described in the chapter "Preparing for
1. Apply pressure to the measuring instrument.
2. Read the measurement values.
-
Shop for Data Logging products online at:
WARNING
fasten the measuring instrument on the suspension attachment
to prevent it from falling down (danger of breakage)
flawless condition and correct connection. Do not use any tools
to connect the hoses, tighten hoses only hand-tight (max.
torque 5.0 Nm / 3.7ft*lb).
Pay particular attention in systems with refrigerant R744, since
these are frequently operated with higher pressures.
measurement" have been performed.
The mode Pressure/Temperature
starting the device.
With zeotropic refrigerants, the evaporation temperature
to/Ev is displayed after the complete evaporation / the
condensation temperature tc/Co is displayed after complete
condensation.
The measured temperature must be assigned to the
superheating or subcooling side (t
this assignment, the display will show t
or t /T2 resp. ∆t
cu
Reading and display illumination are flashing.
• 1 bar before the critical pressure of the refrigerant is
reached,
• when the max. permissible pressure of 49 bar is acceded.
www.
is set as standard when
<--> t
oh
/SC, depending on the selected display.
cu
DataLoggerStore
6 Using the product
). Dependent on
cu
/T1 resp. ∆t /SH
oh oh
19
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