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INFINITY® Microprocessor-based Digital Counter  - Discontinued

Digital Counter
Quadrature, Up-Down and Angular Counting Models
Grey and Binary Absolute Counters Also Available Upon Request
4 Open Collector Outputs, Standard
Optional Four 5A Relays
±10 V and 0/4-20 mA Analog Outputs, Standard
6-Digit Display
RS-232 and RS-485 Communications Available

The INF8 series has been discontinued. You may check on the availability of remaining INF8 stock.

The INF8 counter is programmable for use as a quadrature counter, up-down counter, or angular counter (absolute code counter models are also available, consult sales for details). This instrument is designed for use with digital encoders, inductive, capacitive or optical pick-ups and ultrasonic sensors. In quadrature counting mode, the INF8 can be used with linear or rotational encoders. Counting direction is automatically selected by the momentary phase angle of the input.

The up-down counting mode is designed for fast bi-directional counting applications, while the angular counting mode uses an incremental encoder and counts quadrature pulses bi-directionally between 0 and 360°. The unit can be configured for either 1° or 0.1° resolution. Absolute code counter models can be used with Grey or Binary code resolvers. Models are available for single or multi-turn serial or parallel inputs. Parallel input models are available with 9 to 14-bit resolution, while serial input models are available with 8 to 19-bit resolution.

INF8Q–Quadrature Counter: counting direction selected automatically by phase position of input signals A and B
INF8U–Up-Down Counter: input A represents input pulses,input B represents direction
INF8A–Angular Counter: counting direction automatically by phase position of input signals A and B; zero pulse from the external encoder sets the display to zero
Display: 6-digit, 0 to ±999,999, 7-segment, 14.7 mm
Inputs: 5 V CMOS, protected to 24 V max.
Absolute Code Counter, Parallel: grey or binary code, direct connection from absolute code resolvers; compatible with 9 to 14-bit resolvers with parallel outputs; single turn or multi-turn counter mode
Absolute Code Counter, Serial: grey or binary synchronized serial absolute counter mode, direct connection from absolute code resolvers; compatible with 8 to 19-bit resolvers with serial outputs; single turn or multi-turn counter mode
Keypad: five front panel keys to adjust all operating parameters
Scaling: 6-digit multiplication with sign and decimal point.
Optional Digital Communications: Either RS-232 or RS-485 is selectable from the front panel; baud rates from 1200 to 9600
Analog Output: -10 to 10 V and 0/4 to 20 mA; assignable to any display value from 0 to ±999,999
Setpoints: adjustable from 0 to ±999,999 with decimal point and sign; 4 open collector outputs rated 60 V at 100 mA Standard or 4 mechanical relays with contacts rated 5 A at 230 Vac optional
User Lockout: three levels of security; prohibit setpoint adjustments, entering into setup menu, or use of preset/reset function; optional for absolute counters
Excitation: 20-25 Vdc, 40 mA, unregulated
Connections: screw terminals and flat cable connector
Power: 115/230 Vac ±10%, 50-60 Hz; 10 W power consumption
Dimensions: 1/8 DIN, 48 H x 96 W x 159 mm D
Panel Cutout: 1.8" x 3.7" (45 x 93 mm)
Depth Behind Bezel: 100 mm (3.94")

Product Selection (Specify Model Number, see variations below in partnumber builder table)
 Part Number   Availability   Price    Description   
 INF8Q-000-FL     Consult sales   Digital counter with quadrature input, 115 Vac power and floating decimal point math function  
 INF8Q-001-FL in-stock    $820.00     Digital counter with quadrature input, 115 Vac power ,RS-232/485 serial output and floating decimal point math function  
All dollar amounts on this site are shown in US currency.

 Part Number Builder
(1) (2) (3) (4) (5)
Option Descriptions
(1) Input Configuration
Q for Quadrature
U for Up-Down
A for Angular
(2) Power
0 for 115 Vac power
1 for 230 Vac power
(3) Control Outputs
0 for Without relays
2 for Two 7 A and 2 1A relays
(4) Serial Outputs
0 for No serial output
1 for RS-232/485
(5) Math Functions
-FL for Floating decimal point
 NOTE: All combinations may not be valid, check spec sheet for valid part numbers.

Keywords: Quadrature Counter, Digital Counter, Up-Down Counter, Angular Counter, INF8

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