The 7922 is a 6 digit LCD programmable preset counter with prescaler, quadrature input and EEPROM data storage. Housed in an IP65 sealed DIN case, this versatile counter can be configured for quadrature or uni-directional inputs, dual preset or single preset with batch preset.
The 7922’s display is a supertwist high visibility backlit LCD which can be viewed from any angle. The count is on the main display and the preset value (or batch preset) is on the lower display, while the reset can be automatic, manual or electronic with a sink (NPN) or source (PNP) input.
All programming, reset and presetting can be carried out from the counters front panel and when powered from an AC supply, there is a 12VDC output to drive a sensor.
The key below each digit sets the P1 or P2 (or batch) preset value on the lower display. The red reset key resets the display count to zero or P1 (according to programming). In normal operation the colon illuminates whenever relay 1 is active. In P2 Set mode the colon illuminates whenever relay 2 is active.
85 – 265VAC or 10 – 26VDC at 100mA
12VDC ± 10% @ 100mA (when operating from AC supply)
2 rows of 6 digits, supertwist black on silver LCD with yellow/green LED backlight. Upper row
7mm (0.28in) high indicates count, lower row 4mm (0.16in) high indicates P1/P2 preset point. Also Relay 1 Active annunciator
Programmable to Always ON, Always OFF or AUTO (ON for 30s following last keypress)
Two user selectable preset points 1 – 999999
Voltage Opto-isolated 10 – 30VDC
Quadrature and uni-directional
Input A (quadrature and uni-dir. count) NPN or PNP
Input B (quadrature and UP/DOWN in uni-dir. mode)
Maximum input frequency 10kHz
Duty cycle Maximum 60:40 or 40:60 mark/space ratio
Prescaler Multiply 0.00001 – 9.99999, default 1.00000
Divide 1 – 99999, default 00001
Can be disabled on installation or remotely reset
Contact closure or pulse (15 ms response time)
Programmable for automatic or Manual/Remote reset
40 years minimum
Both individually programmable as NO or NC SPST
Contact Rating 5A 260VAC/30VDC 1300VA/150W
-20°C to +70°C
IP65 when properly installed using the sealing gasket supplied (without bezel)
7922 – 6 digit Predetermining counter
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