14071 Issue 2.6
Page 6
11. Display orientation - Inverting function - All modes
a)
The instrument can be used through 180° rotation (e.g. with the light beam pointing downward into a
machine), the display inverts so that normal reading can take place.
b)
The UP Button selects normal mode for optical and contact measurements.
c)
The Down button selects the display inversion mode and the whole display including relevant icons
will reverse through 180 degrees allowing access to difficult applications.
12. Pulse output facility (models /002)
a)
These models can be connected to external measuring equipment with a compatible input, the A2109
output is via a 5-pin Binder connector (type 711 series).
To enable auto-power up (on connection), connect pins 1
and 2.
Input parameters - Pin 4 w.r.t. Pin 3:
Ui = 10.1V
Output parameters - Pin 4 w.r.t. Pin 3
Output parameters - Pin 1 w.r.t. Pin 2:
Uo = 6.6V
Uo = 6.6V
Io = 0.3mA
Io = 463mA
Po = 0.43mW
Po = 0.63mW
Lo = 700mH
Lo = 0.17mH
Co = 22uF
Co = 22uF
Lo/Ro = 68 mH/Ohm
Lo/Ro = 49mH/Ohm
Li = 0
Li = 0
Ci = 0
Ci = 2.245uF
Any equipment connected must be of an appropriately Ex certified type.
Operation
b) Connect the lead supplied to the tachometer output socket. The tachometer will turn on automatically and
remain powered as long as the lead is attached.
c) The tachometer output should be pulled high by an external resistor. When the laser is on target, the output
will be a positive going pulse.
13. Battery replacement
Power requirements: 4 x “INDUSTRIAL BY DURACELL” AAA Batteries
Warning for A2109:
Battery Replacement
Batteries must only be replaced with “INDUSTRIAL BY DURACELL” AAA Batteries. The battery compart-
ment lid must only be opened in a safe area.
To open the lid, first unscrew the security screw with the special tool provided until it moves freely. The screw
is a captive type and should not be removed from the lid. Once the screw moves freely, press the thumb grip on
the lid and push/slide the lid backwards and lift off. The old batteries can then be replaced ensuring correct
orientation. Replaced the lid ensuring the security screw is pulled upwards to avoid catching underneath. The
base of the lid is now pushed until a click is heard, tighten the security screw and the unit is ready for use.
