Preset Counter ZN48

Preset Counter ZN48 Introduction:

The ZN48 product is a digital preset counter with a large and clear 4-digit digital tube screen. A preset counter is a counter whose contacts will be activated to turn on an alarm or other load when a set value is reached. It can be used for counting up or down.
The panel size of this digital preset counter is 48*48 mm(72*72 mm panel size is available as well), and the maximum load capacity is 5 A at 220 VAC operating voltage. If the operating voltage is 24 VDC, the contacts are 7 A. It’s large enough to accommodate some alarm lights or a small motor.
Please note that if you want this preset counter to count the number of items, you need to use an NPN sensor. If you only count metal products, use NPN inductive sensors. NPN photoelectric sensors are suitable for a variety of materials.
The Lorenzzi ZN48 preset counter is not only used for counting, but also for recording frequency, running time, speed, etc.
It has 32 working modes, each working mode is shown in the following table:


Function code	Code description	Counting range	Relay working code	Ratio
1	Count up	0.01s-99.99s	1~6
2	Countdown	0.01s-99.99s	1~6
3	Count up	1min-9999min	1~6
4	Countdown	1min-9999min	1~6
5	Count up	1s-9999s	1~6
6	Countdown	1s-9999s	1~6
7	Count up	1s-99min59s	1~6
8	Countdown	1s-99min59s	1~6
9	Count up	1min-99h59min	1~6
10	Countdown	1min-99h59min	1~6
11	Count up	1min-99h59min	1, 2
12	Countdown	1min-99h59min	1, 2
13	Count up	1s-99min59s	1, 2
14	Countdown	1s-99min59s	1, 2
15	Count up	1s-9999s	1, 2
16	Countdown	1s-9999s	1, 2
17	Count up	1min-9999min	1, 2
18	Countdown	1min-9999min	1, 2
19	Totalizing(reset right now)	0-99h59min59.99s	1~6
20	Totalizing(reset after 8 seconds)	0-99h59min59.99s	1~6
21	Totalizing(reset right now)	0-9999h59min59.99s	1~6
22	Totalizing(reset after 8 seconds)	0-9999h59min59.99s	1~6
23	Totalizing(reset right now)	0-9999day23h59min	1~6
24	Totalizing(reset after 8 seconds)	0-9999day23h59min	1~6
25	Frequency	1Hz-9999Hz	1, 3
26	Frequency	1.0Hz-999.9Hz	1, 3
27	Speed	60-9999RPM	1, 3	a, b
28	Frequency/Speed	0-9999	1, 3
29	Reversible counting	0-9999	1, 3, 5	a
30	Reversible counting	0-9999	1, 3, 5
31	Reversible counting	0-99999999	1, 3, 5
32	Reversible counting	0-99999999	1, 3, 5	a


Working code	Relay action
1	When the instrument is powered on, the relay closes when the set value is reached or exceeded.
2	The instrument does not work after power is turned on (the instrument can be turned on by the reset button or reset terminal). When the set value is reached or exceeded, the relay is energized.
3	When the instrument is powered on, the relay releases when the set value is reached or exceeded.
4	The instrument does not work when the power is on (the instrument can be made to work through the reset key or reset terminal) and the relay releases when the set value is reached or exceeded.
5	After the instrument is powered on, when it reaches or exceeds the set value, the relay is energized, and after the preset reset time, the instrument automatically resets and starts working again.
6	When the instrument is powered on and does not work (the instrument can be put into operation through the reset button or reset terminal), when the set value is reached or exceeded, the relay is energized, and after the preset reset time, the instrument automatically resets and starts working again.


Product model	ZN48
Power consumption	Less than 3W
Auxiliary power source	12VDC 30mA
Counting speed	2-10kHz
Electrical lifespan	More than 100000 times
Working voltage	12VDC, 24VDC, 100-240VAC/DC, 36VAC, 110VAC, 220VAC, 380VAC
Contact capacity	AC250V 5A, DC24V 7A
Counting method	Contact counting or NPN sensor counting
Insulation resistance	100MΩ(DC500V)
Pause time	More than 0.05s
Reset time	More than 0.05s
Power restarting time	More than 1s
Mechanical life	More than 1000000 times