Our rate displays provide a cost effective means to display rate per hour, minute or second. Like all our products, you get a quality product 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 rate displays have the flexibility you require to serve your demanding industrial rate display applications. Use our Rate Displays Selection Guide to see which series of rate displays is the right choice for your application.

Rate Displays Selection Guide

Series	87 Series Rate Displays	77 Series Rate Displays
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
Rate Time Base	DIP switch selectable for hours, minutes or seconds	Factory set to hours, minutes (standard) or seconds
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 (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 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 Rate Displays

87 Series Rate Displays

87/415 Rate Displays
The 87/415 Rate Display is the most powerful of our large digital rate displays. Standard features include your choice of 4", 6", 8" and 12" tall numeric digits in a 7-segment formation and features a set of 2 inputs (jumper selectable sink or source) plus a reset. Display rate per hour, minute or second, scaled to any units you desire. Built in smoothing options provide a stable yet responsive rate display. A switch input can be used to toggle the display between rate and total count, and limits can be set to trigger at any pre-determined rate values. You can even select automatic display of down time if the rate falls to zero! 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. 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 rate 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 Rate Displays
The 77 Series is the most economical of our large digital rate displays. Standard units feature 3.3" tall digits in a 7-segment formation and include sinking type inputs (sourcing optional) for rate function and reset. A regulated output voltage of 12 VDC is provided for auxiliary use (optional 5VDC replaces 12VDC).

77 Series Rate Displays

77/415 Rate Displays
The 77/415 Rate Monitor displays rate in counts per minute (per second or per hour optional) on a 2 to 6 digit display field. The 77/415 averages the input, calculates the rate and updates the display approximately once per second. Updating the display in this manner results in accurate, stable readings. Standard sinking inputs accept both TTL and open collector outputs. Input filtering is field selectable for high or low input rates. Absence of an input signal for 6 seconds will zero the display. The 77/415 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 rate. Both update time and time to zero are factory set and may be optionally optimized for the application. Contact for specifics at info@digital-displays.com.

More Information on 77 Series Displays