Ultrasnoic thickness gauge AS840 AS850 AS860

 Display

 4-digital LCD display

 4-digital LCD display

 4-digital LCD display

 Minimum display unit:    

 0.1 mm

  0.1 mm 

  0.1 mm

 Measuring Probe:

 ∅10mm 5MHz

 ∅10mm 5MHz

 ∅10mm 5MHz

 Measuring range

 1.2 to 225.0mm (steel)

 1.2~225mm(steel)

 1.00 to 300.0mm(steel)

 Working frequency

 5MHz

 5MHz

 5MHz

 Accuracy

 (1%H+0.1)mm,H denotes
the measured thickness.

 ±(1%H+0.1)mm,H denotes
the measured thickness.

 ±(1%H+0.1)mm,H denotes
the measured thickness.

 Minimum limit for tube measuring

 20*3mm (steel)

 20*3mm (steel)

 20*3mm (steel)

 Sound velocity range

 1000 to 9999 m/s 
Measuring sound velocity with a given thickness: measuring range:  1000 to 9999 m/s.
When the given thickness >20mm, the accuracy is +/-5%;
when the given thickness <20mm, the accuracy is +/-1mm/H*100%.

 Operation temperature

 0℃ to 40℃

 0℃ to 40℃

 0℃ to 40℃

 Relative humidity:    

 <90%RH

 <90%RH

 <90%RH

 Hardware/workpiece/material temperature:

 <60°C

 <60°C

 <60°C

 Power supply

  3 * 1.5V AA Battery(Not Included)

  3 * 1.5V AA Battery(Not Included)

  3 * 1.5V AA Battery(Not Included)

 Operation current: 

 Normal operation current: 50mA
With Backlight turn on current: 120mA  Stand-by current: 20uA

 Normal operation current: 50mA
With Backlight turn on current: 120mA  Stand-by current: 20uA

 Normal operation current: 50mA
With Backlight turn on current: 120mA  Stand-by current: 20uA

 Product Weight

 152g

 155g

 191g

 Product Size

 161x66x31mm

 160 x 66 x 32mm

 163 x 70 x 34mm  

 Package Weight

 670g

 880g

 850g

 Package Size

 25x21x6cm

 29.5 x 19.5 x 7cm

 29.5 x 19.5 x 7cm

 Packing Contents

 1 * Ultrasonic Thickness Gauge
1 * Φ10mm 5MHz Transducer
1 * 4mm Sampling Block
1 * Storage Box
1 * User Manual

 1 * Ultrasonic Thickness Gauge
1 * Φ10mm 5MHz Transducer
1 * 4mm Sampling Block
1 * Storage Box
1 * User Manual

 1 * Ultrasonic Thickness Gauge
1 * Φ10mm 5MHz Transducer
1 * 4mm Sampling Block
1 * Storage Box
1 * User Manual