Counter, PZA Series

Counter, PZA Series

 

Adding counter

- Surface mounting
- Panel mounting
Adding counters have 6-digit displays and count upwards, i.e. incoming signals are added. 
When the counter is reset, 000 000 appears. A pneumatic signal increments the counter by a half step, and the first half of the digit appears.
After completion of the signal, the second half-step increment occurs and the digit becomes fully visible. The counter can be reset manually by means of a button.
It can also be reset by means of a pneumatic signal. A counting signal may not arrive or be present during the resetting procedure.
 

Predetermining counter

- Subtracting counting mode
- Manual and pneumatic reset
- Protective cover
Predetermining counters count pneumatic signals backwards from a preset number. When zero is reached, the counter generates a pneumatic output signal.
This output signal persists until the counter is reset. The counter is preset by pressing the reset button and simultaneously keying in the preset value.
This value is retained when the counter is reset.
 

Specifications

Type	Adding counter		Predetermining counter
	PZA-A-B	PZA-E-C	PZV-E-C
Constructional design	Mechanical counter with pneumatic drive
Type of mounting	3 through-holes in housing	Panel mounting
Operating medium	Compressed air in accordance with ISO 8573-1:2010 [7:4:4]
Note on operating/pilot medium	Operation with lubricated medium not possible
Pneumatic connection
Display	6-digit	6-digit	5-digit
Reset	Pushbutton or pneumatic signal
Response pressure
Drive [bar]	0.6 ±0.2	> 0.8	0.6 ±0.2
Reset [bar]	0.6 ±0.2	2	-
Drop-off pressure
Drive [bar]	0.2 ±0.1	< 0.15	0.2 ±0.1
Reset [bar]	0.15 ±0.1	< 0.15	0.15 ±0.1
Min. pulse length
Drive [ms]	10	8	10
Reset [ms]	180	150	180
Min. pause period
Drive [ms]	15	10	15
Reset [ms]	50	50	50
Materials	Housing: Plastic
	Seals: Chloroprene
Weight [g]	155	70	150

Operating and environmental conditions

Type	Adding counter		Predetermining counter
	PZA-A-B	PZA-E-C	PZV-E-C
Operating pressure [bar]	2...8
Min. reset pressure [bar]	2	-	-
Ambient temperature [°C]	-10...+60	0...+60