3. Strobe Exposure (Graywall)
NOTE: If the Strobe Exposure readings are out of spec, perform the ZLS Output test
before making the adjustment below. If ZLS reading is out, replace the strobe
a. With the Camera off the Tester, remove the Front Plate/Lens Panel and replace it with a
modified Front Plate as shown in Fig. 10. (See NPI 600AM #92-30 for more information.)
b. Using a dental pick, narrow-bladed screwdriver or other suitable tool, adjust the IR
calibration wedge. Move the IR calibration wedge counterclockwise (CCW) to decrease
the reading or clockwise (CW) to increase the reading (Fig. 12).
c. Replace the original Front Plate and retest the camera. Readjust the IR calibration wedge
if necessary.
d. If the IR calibration wedge adjustment cannot bring the reading into specification,
disassemble the camera down to the shutter level and examine the photocell area. Be certain
the photocell is properly seated. Reassemble the camera and retest. Readjust the IR
calibration wedge if necessary.
Fig. 12 Adjusting IR Calibration Wedge
IR calibration
wedge
102