HAAG STREIT Applanation Tonometer AT 870

In working position, the feeler arm is swivelled and the measuring drum is set to 0. The arm carrying the measuring prism must swing freely between the limit stops on contact.

Feeler arm swings freely between the limit stops on contact

The control weight is to be used for this inspection. The weight rod is engraved with five rings. The middle ring corresponds to a scale value of 0, the rings immediately to its left and right correspond to a value of 2, and both outside scale rings have a value of 6.

Feeler arm moves towards the patient

Move calibration mark 2 on the measuring drum downwards, opposite the fixed index, by a width of one marking

Feeler arm starts to move independently towards the limit stop in the direction of the examiner

Move calibration mark 2 on the measuring drum upwards, opposite the fixed index, by a width of one marking

Feeler arm starts to move into direction of the stop-piece on the patient's side

NOTE!: This check must be carried out once a month.

Is the measuring prism properly positioned?

Is the control weight correctly set?

Defective devices must be sent immediately to your Haag-Streit representative.

NOTE!: Haag-Streit offers a repair and service package. For further information, please contact your Haag-Streit representative directly.

Sign off on the Tonometer Check

Warning: The preparation instructions provided do not apply to tonometer measuring prisms.

Tonometer measuring prisms must be prepared in accordance with a different manual.

Comply with the stipulated exposure time.

Observe the manufacturer's safety instructions.

Too strong or aggressive disinfectants or cleaning liquids e.g. hydrogen peroxide will damage the finish and coating of the device.

Do not use any towels that drip.

Wring out any soaked towels before use when necessary.

Ensure that no liquid penetrates the device.