| ，Dimensions |
| TOA-3 same as TOA-5 in dimensions |
|
| ，Connection |
|
| ，The correct operation instruction for TOA-3 |
| .Set the receptor on the window side, when the object to be detected issmall. |
| . .When the lens of the projector or receptor is found soiled wipe clean it with soft |
| cloth without delay |
| .When the lens of the projector or receptor is found soiled wipe clean it with |
| soft cloth without delay. |
| .For replacement of the incandescent bulb, remove the case with the 3 |
| mountingoptic axis aiming and action of the switch. screws screwed off, replace |
| the bulb,then refit the case and check the optic axis aiming and action of the |
| switch. |
| .Simultaneous switching on of both TOA3 projector and receptor is accompanied |
| by a false action of the relay. |
| .But TOA5 doesn't have this phenomenon. If it is misleading, and is to be |
| favoided, irst switch on the projector and then the receptor. |
| .The adjustment of TOA3 optic axis |
| --Install white paper behind the receiver. Observe the light from the light sour- |
| ce through the receiver, to adjust the position of the receiver and fix, to get |
| the brightest spot on the center of receiver lens. |
| --after remove the rubber cap of the receiver, to adjust the receiver and fix, so |
| that the brightest spot of light from the light source can shot at the black cap |
| hole of the receiver. |
