Amprobe TT-300 Mini-Butt-Set - Manual (Page 7)

-6-
BATTERY REPLACEMENT
Remove the cover & replace the battery with an alkaline or lithium 9V
battery.
MAINTENANCE
SPECIFICATIONS
ELECTRICAL
Loop Resistance 2k @ 48VDC (Minimum Current: 20mA)
DC Resistance 300
Ω
and below
Monitor Impedance 100k
Ω
@ 1kHz
DTMF Level High -6dBm
Low -8dBm
DTMF Frequency CCITT standard
Last Number Redial 32 digits
Insulation Resistance
Measurement Range
0-10M
Ω
@ DC 90V
Tone Transmitting for
Line Continuity
800Hz 0dBm
Power Source DC 9V battery
PHYSICAL
Length 5.00" (127mm)
Width 2.25" (57mm)
Height 1.02" (26mm)
Weight 6 ounces (170g)
Document2 2/12/01 4:26 PM Page 7