3
LCD screen display:
BATT : low voltage indication
凸
: coupling indication
m/s
: metric unit of sound velocity
mm
: metric unit of thickness
inch/
μ
s: imperial unit of sound velocity
inch
: imperial unit of thickness
Keyboard:
ON : power
ZERO : calibration
VEL: sound velocity
-
: adjustment key for sound velocity, thickness
and thickness unit
: adjustment key for sound velocity, thickness
and thickness unit
VEL+ZERO : keys for thickness memory
4
2. Performance parameters
Display type:
4-digit LCD
Range of operating temperature: 0
℃
～
40
℃
Power supply:
two AAA alkaline cells 1.5V
Power consumption: working current is smaller than 20mA (3V)
Weight:
140 g
Dimensions:
124×68×27 mm
Minimum display unit:
0.1 mm
Sound velocity range: 1000m/s~9999m/s
Measuring error:
±(1
％
H+0.1) mm, H is the actual thickness
of the object to be measured.
Measuring
range:
5P
Φ
10 probe 1.2 mm~225.0 mm (steel)
5P
Φ
10/90 probe 1.2 mm~225.0 mm (steel)
SZ2.5P probe 3.0 mm~300.0 mm (steel)
7P
Φ
6 probe 0.75 mm~60.0 mm (steel)
3. Main functions
1) Two display units: metric and imperial
2) Automatic calibration to zero: automatically correct the system errors
