Our digital counters provide a cost effective means to totalize inputs from 1 or 2 sources. Like all our products, you get a quality display in a rugged industrial enclosure, accompanied by expert technical support. With your choice of display color (standard red, optional green, yellow or tricolor in 4" discrete only) and digit sizes ranging from 3.3" to 12", Our digital counters have the flexibility you require to serve your demanding industrial counter applications. Use our Large Digital Counters Selection Guide to see which series of digital counters is the right choice for your application.

Large Digital Counters Selection Guide

Series	87 Series Digital Counters	77 Series Digital Counters
Digit Heights	4" Solid Segment Digit 4" Discrete Digit 6" Discrete Digit 8" Discrete Digit 12" Discrete Digit	3.3" Discrete Digit
Viewing Distance (Recommended/ Maximum)	4" Solid Segment - 100' / 140' 4" Discrete - 120' / 160' 6" Discrete - 180' / 240' 8" Discrete - 240' / 320' 12" Discrete - 360' / 480'	3.3" Discrete - 100' / 120'
Number of Digits	2, 3, 4, 6, 8 or 12 digit	2, 3, 4, 5 or 6 digit
Display Color	Standard red, optional green, yellow or tricolor (Tricolor available for 4" discrete digit only)	Standard red, optional green or yellow
Display Technology	Discrete LED (Solid segment available in 4" size digit only)	Discrete LED
Count Memory	Yes	Yes (Memory not supported with preset option installed)
Supports Preset	Yes (Set with a PC using our FREE Display-Pro® 4 Windows® programming utility or by the 87/003 Hand Held Terminal)	No
Supports Scale Factor	Yes (Set with a PC using our FREE Display-Pro® 4 Windows® programming utility or by the 87/003 Hand Held Terminal)	Optional (thumbwheel or internal DIP switch)
Communication Port	RS-232 (optional RS-422/RS-485)	None
Programmable Operation	Yes (through DIP switch selection or PC using our FREE Display-Pro® 4 Windows® programming utility)	No (Factory programmed)
Mounting Options	Hang Mount	Stand Alone or optional Panel Mount
Power Requirements	120/220 VAC ±15% 50/60Hz	Standard 120 VAC ±15% 50/60Hz or optional 24 VDC ±15%
Cost	See 87 Series Displays/Pricing 4" discrete 4 digit $533 4" discrete 6 digit $641	Starting at $434 for a 2 digit. (Add $30 for each additional digit.) 4 digit for only $494 6 digit for only $554

87 Series Digital Counters

87 Series Digital Counters

87/256 Digital Event Counters
The 87/256 Digital Event Counter is the most powerful of our large digital counters. Standard features include your choice of 4", 6", 8" and 12" tall digits in a 7-segment formation and features a set of inputs consisting of 2 count inputs (jumper selectable sink or source) plus a reset. Non-volatile count memory makes it possible for the counter to retain the last count in the event of a power loss, without battery backup. DIP switches allow the user to select from one of many popular pre-programmed modes of operation. Advanced modes of operation are possible using our FREE Display-Pro® 4 Windows® programming utility for the 87 Series units. Totalize inputs from one or two sources, with a unique scale factor for each input. Two data inputs allow independent increment/decrement operation or quadrature-encoded inputs standard. Or you can use one of the data inputs on the counter to toggle to a rate display! Preset and trigger capabilities are also standard. The list below defines some of the operational characteristics that can be programmed by a PC using our Display-Pro® 4 Windows® programming utility. Contact for specifics at info@digital-displays.com

• Color Changes - Display changes color in a tricolor display when a process variable such as count reaches a preset value or as the display scrolls through a sequence of display items.
• Virtual Displays - Enables a single unit to display up to 4 process variables on the same display through scrolling or by splitting the display into multiple fields.
• Define Range Restrictions - Define the minimum and maximum allowable display value and take action if a limit is reached such as stop, flash the display value or flash a predefined string.
• Define an Address - An address is defined for networking applications.
• Define Inputs - Define an active level for each individual input and debounce time.
• Preset and trigger - Unit takes special action if a preset value is reached such as activating an optional relay, flashing the display value, reloading a predefined "initial value", stop, change color for tricolor displays, and/or transmit a predefined string.

More Information on 87 Series Displays

77 Series Digital Counters
The 77 Series is the most economical of our large digital counters. Standard units feature 3.3" tall digits in a 7-segment formation and include 2 sets of inputs, one set for common sinking operation and the other for isolated 120/220 VAC input. Each set of inputs includes one count input and one reset input (a second count input is optionally available). A regulated output voltage of 12 VDC is provided for auxiliary use (optional 5VDC replaces 12VDC). 77 Series digital counters are sold as models 77/256M (no preset) and 77/215 for applications requiring a preset.

77 Series Digital Counters

77/256M Digital Event Counters
The 77/256M Digital Event Counter displays the number of inputs received on a 2 to 6 digit display field. Non-volatile count memory makes it possible for the 77/256M to retain the last count in the event of a power loss, without battery backup. The 77/256M can be equipped with an optional scale factor of 0.0001 to 9999, settable via internal DIP switches. The displayed value is the product of the scale factor and the total count.

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