Trumeter 7000AS 数据表
2
Dimensions (mm)
27(W)x17.5(H)x6.5(D)
Panel Cutout
29.4mm x 22mm
Weight
7.5 grams
Supply voltage
2.6 - 3.4VDC
Current consumption
5µA quiescent, 10µA at 10kHz.
Display
6 digit black LCD, 6mm characters
Count Range
999999 display rollover to 0
Count Input
10kHz max, negative edge triggered,
0.7v threshold 18v max, 50µS min. pulse
length, TTL/CMOS Compatible.
0.7v threshold 18v max, 50µS min. pulse
length, TTL/CMOS Compatible.
Reset Input
Negative edge triggered, 0.7v threshold
18v max, 15mS min. pulse length,
TTL/CMOS Compatible.
18v max, 15mS min. pulse length,
TTL/CMOS Compatible.
Direction Input (7000AS model)
Add=logic 1, Subtract=logic 0 (0v)
Storage and operating temp.
-10°C to +60°C
Material
Clear polycarbonate
Sealing
IP40/DIN40050
Specification
The model 7000 counts up only; model 7000AS (Add/Subtract) is bi-directional and has a
direction input pin. The different pin connections on the two models are listed below. The
unit is mounted the correct way up when the single pin is on the left when viewed from
the front.
direction input pin. The different pin connections on the two models are listed below. The
unit is mounted the correct way up when the single pin is on the left when viewed from
the front.
The counters are suitable for either direct PCB mounting, having pins at 0.1 inch pitch, or
panel mounting with bezel supplied. Either of the counters can be powered from a higher
voltage DC supply using the external voltage control circuit shown on page 7.
panel mounting with bezel supplied. Either of the counters can be powered from a higher
voltage DC supply using the external voltage control circuit shown on page 7.
Pin 7000
7000AS
1
Reset
Reset
2
+V
Direction
3
Count I/P Count I/P
4
0V
0V
5
0V
+V
Pin Connections
(see page 7)
(see page 7)
External de-bounce for
contact closure input
contact closure input
Reset Input
Count Input
Direction Input
This product is intended for use in
battery powered applications.
0V
7000AS
4
2
0V
7000 / 7000AS
4
1
10nF
10K
0V
7000 / 7000AS
4
3