Specifications:

.Gate length     
.Range. . . 6 µs to 3.2 s
.Resolution     
.Range of gate length (TI)     Resolution
6 µs = TI = 25 ms     0.4 µs
25 ms < TI = 64 ms     1 µs
64 ms < TI = 130 ms     2 µs
130 ms < TI = 320 ms     5 µs
320 ms < TI = 1.28 s     20 µs
1.28s < TI = 3.2 s     100 µs
.Gate length
.Range. . . .  0.8 µs to 3.2 s
.Resolution     
.Range of gate delay (Td)     Resolution
0.8 µs = Td = 25 ms     0.4 µs
25 ms < Td = 64 ms     1 µs
64 ms <Td = 130 ms     2 µs
130 ms < Td = 320 ms     5 µs
320 ms < Td = 1.28 s     20 µs
1.28 s < Td = 3.2 s     100 µs
.Additional amplitude error
.Log scale . . .  < 0.3 dB (SPC) Linear scale. . . . < 3% (SPC)
.Gate control modes. . .    Edge (positive/negative) or level
.Gate trigger input (external trigger input is used)
.Connector . . .BNC female Level . . . TTL
.Gate output
.Connector . . . BNC female Level. . .TTL