
Railmast
er
™
U
ser
’s M
anual
30
9.2 Environment
Ambient operating temperatures
-22ºF to +158ºF
(-30ºC to +70ºC)
Maximum humidity
90% relative humidity
(non-condensing) at
98 .6°F (37°C)
9.3 Speed Range Parameters
Speed Display Ranges
Minimum Maximum
Low speed mph option
1 .0
75 .0
Low speed km/h option
2 .0
122 .0
High speed mph option
10
210
High speed km/h option
20
337
9.4 Power Consumption Parameters
Supply voltage range (with power cord)
8 .5VDC - 16 .5VDC
Low voltage trip with antenna on (with power cord) 8 .5VDC
Battery supply voltage
7 .2VDC
Battery low voltage trip with antenna on 6 .3VDC
When using power cord
All currents measured at 13 .8VDC with backlight on
Standby (antenna off)
.105 amperes
Antenna ON
.170 amperes
(no targets displayed)
Antenna ON
.172 amperes
(“55” target displayed)
Antenna OFF
.116 amperes
(segment check “888 888”)
Antenna ON
(segment check “888 888”)
.180 amperes