DIFF automatic volume flow meter
User manual
V11.2 - EN
Page
23
TDC 16-7-2012
OBSERVATOR
instruments
9.2 Replacing the fuse
The DIFF contains a fuse (5x20 mm 250V / 5A slow). The fuse is placed in the right side of the
electronics block. The fuse holder can be opened by turning the holder carefully with a big
screwdriver. Take care that the batteries are in the right position before putting the fuse back in.
The fuse in the DIFF should only be replaced with the original type: 5x20 mm 250V / 5A slow.
Repair can be needed if a fuse replacement does not solve the problem.
9.3 DIFF spare parts
Options:
Part number
Description
AT-251
Standard / Fast charger for 4xAA NiMH batteries. 100-240V.
Excl. Batteries.
AT-240
Hood 310x1534mm – nylon with frame and fiber support
AT-241
Hood 310x1234mm – nylon with frame and fiber support
AT-242
Hood 330x330mm – PET
AT-245
Hood 600x600mm – nylon with frame and fiber support
AT-244
Hood 400x400mm – nylon with frame and fiber support
AT-255
Extra set of 4 chargeable NiMH AA batteries 2700 mAh
SANYO.
AT-260
Upgrade data storage incl. pc-software DIFFiner and 2 GB
SD-card.
SD-card reader with USB
Spare parts:
The following spare parts are available
Part number
Description
Glass fuse 5x20mm 5AT
AT-300-130
Battery holder
AT-300-140
Battery holder connection wire
AT-255
Extra set of 4 chargeable NiMH AA batteries 2700 mAh
SANYO.
AT-280 Suitcase
CL-DIFF
Calibration-service. Calibration of 24-points with report. The
instrument is recalibrated when needed.
