HT instruments SPEED418 - Manual (Page 53)

400 Series
EN - 52
7. AUXILIARY MEASUREMENTS
7.1. AUX: REAL TIME MEASUREMENT OF THE ENVIRONMENTAL
PARAMETERS
By means of external transducers, this function allows measuring the following
environmental parameters:
 AIR
air speed by means of air-speed transducer
 RH air humidity by means of humidity transducer
 TMP °F air temperature in °F by means of thermometric transducer
 TMP °C air temperature in °C by means of thermometric transducer
 dB
acoustic pressure by means of sound level transducer
 Lux lighting by means of luxmetric transducer
 VOLT input voltage (without applying any transduction constant)
Fig. 28: Connection between an
environmental probe and the instrument
Fig. 29: Connection between the sound level
probe and the instrument
1. Press the MENU key, move the cursor to AUX
in the main menu by means of the arrow keys
(,) and confirm with ENTER. Subsequently
the instrument displays a screen similar to the
one reported here to the side. Except in dB
mode, the instrument measures and shows on
the display the instant value of the input
parameter in real time, and RUN appears in
the right bottom part of the display A U X
I n 1 = 7 . 0 8 L u x
Lux LX 20 RUN
Func FS
2.
Use the ,  keys to select the parameter to be modified, and the ,  keys
to modify the parameter value.
It is not necessary to confirm the selection with ENTER
.
Func
The virtual Func key allows setting the the type of environmental
measurement to perform, which may be: AIR, RH, TMP °F, TMP
°C, dB, Lux, VOLT
FS
The virtual FS key, active only when the Lux mode has been
selected with the Func key, allows selecting the clamp full scale
among the values: 20, 2k, 20k