15
DEUTSCH
ENGLISH
FRANÇAIS
ITALIANO
ESPAÑOL
NEDERLANDS
PORTUGUÊS
SVENSKA
DEUTSCH
ENGLISH
FRANÇAIS
ITALIANO
ESPAÑOL
NEDERLANDS
PORTUGUÊS
SVENSKA
© HAAG‑STREIT AG, 3098 Koeniz, Switzerland ‑ HS‑Doc. no. 1500.7006000‑04270 – 2022 – 09
Bands are no longer in contact (16)
Pressure is too high.
Lower the pressure by rotating the tonometer knob
in the opposite direction.
Correct setting (17)
The inside borders of the fluorescein bands are con-
tacting each other.
7 Technical data
7.1 Applanation tonometer AT 900
Measuring force
generated
through leverage weight.
Installation
AT 900 model R
Can be fitted on the peg on the microscope.
AT 900 model T
Can be fitted on the guide plate on the swivelling
peg for the microscope and illumination arm.
AT 900 model BQ Assembly on the microscope arm.
Measurement range
0 ― 80 mm Hg
Measurement devi-
ation
The measurement deviation in the measuring prism is in the measur-
ing range from 0 – 58.84 mN and amounts to a maximum of ±1.5%
and to a minimum of ±0.49 mN of the nominal value.
Backlash width
≤0.49 mN
Net weight
AT 900 model R
0.73 kg (without accessories)
AT 900 model T
0.49 kg (without accessories)
AT 900 model BQ 0.78 kg (without accessories)
AT 900 model R
AT 900 model T
AT 900 model BQ