Alert Distance Tables - SafeGuard Compass User Manual

ALERT DISTANCE TABLES

VOLTAGE DETECTION WARNING DISTANCES
(Sensitivity) LEDs
(Lowest) 1
2
3
(Medium)
4
5
6
(Highest)
7 16ft / 10ft
X = DO NOT USE! Alert distance too small or non-existent.
Distances were measured using a 4ft x 2in diameter busbar elevated 2.5 feet above ground, in an outdoor
setting (26°C and 35% RH), by a tester walking at a normal speed with a Compass mounted on a full-brim hard
hat. Distances will vary depending on conditions, always verify exact distances for a given situation.
CURRENT DETECTION WARNING DISTANCES
(Sensitivity) LEDs
(Lowest)
1
2
3
(Medium)
4
5
6
(Highest) 7
X = alert distance under 1ft.
Distances were measured using a cable carrying current 2.5 feet
above ground, outdoors at 21°C and 40% RH, by a tester with a
C
OMPASS® mounted on a full-brim hard hat. Absolute distances
were measured with the tester moving slowly, whereas walkup
distance was measured at a normal walking pace toward cable.
Detection distances will vary in different conditions. Always verify
exact distances for a given situation. Compass current sensors are
slower to react than voltage sensors, users should move slowly when
trying to detect current.
sales@safeguardequipment.com
First Alert/Max Alert
2.4kV 4.2kV
X/X X/X
X/X 4/X
4ft / X 7ft / 3ft
6ft / 2ft 8ft/4ft
9ft / 5ft 12.5ft/ 7ft
12ft / 6ft 14ft / 8ft
19ft / 12ft
Absolute Distance First Alert / Max Alert
1A 10A
X/X 1ft / X
X/X 1.25ft / X
X/X 1.5ft / X
.5ft / X 1.75ft / 1.25ft
.75ft / .25ft 2ft / 1.5ft
1.125ft / .5ft 2.75ft / 1.75ft
1.175ft / .75ft 3.75ft / 2ft
208-773-9263
7.2kV
LEDs
X/X
6ft / 2ft
9ft / 4ft
11ft / 6ft
14ft / 8.5
* Data recorded testing 3 phase distribution lines from the
bucket of a boom truck moving directly toward outside co doc-
tor and tester wearing a hard hat mounted Compass. Voltages
18ft / 10ft
shown are phase to ground, with 34.5kV and 24.9kV being the
phase to phase levels. 45deg = Hard hat at 45° downward from
22ft / 14.5 ft
outside conductor.
Level = Hard hat level with conductor.
50A
2.25ft / 1.75ft
2.75ft / 2ft
3ft / 2.25ft
3.5ft / 2.75ft
4ft / 3.25ft
5.5ft / 3.5ft
7ft / 4.5ft
(sensitivity) LEDs
(Lowest)
(Medium)
(Highest)
High-Voltage
First Alert/ Max Alert
14.4kV 19.9kV
1 12ft / 5ft 18ft/8ft
2 18ft / 8ft 20ft / 10ft
1 15ft / 5ft 7ft / 3ft
2 18ft / 7ft 8ft / 4ft
100A
3.5ft / 2.5ft 4.5ft / 3.5ft
3.75ft / 3ft
4.25ft / 3.5ft 5.5ft / 4.5ft
5ft / 4ft
5.5ft / 4.5ft
7ft / 5ft 9ft / 6.5ft
9ft / 6ft 11ft / 7.5
Walkup Distance
First Alert / Max Alert
100A
1 X / X
2 X / X
3 X / X
4 1ft / X
5 1.5ft / 1ft
6 2.5ft / 2ft
7 4ft / 3ft 6.75ft / 4.25ft
Condition
45deg
45deg
Level
Level
200A
5ft / 4ft
6ft / 5ft
7ft / 6ft
200A
X / X
X / X
1ft / X
2ft / 2ft
3ft / 2.5ft
5ft / 3ft
7