Large Display rate / frequency / speed meters

These large displays accept most common pulse inputs such as contact closures, NPN or PNP proximity sensors, 24V PLC pulses etc. They can easily be scaled to read in your preferred engineering units.

Because the scaling is digital, precision is excellent. A quartz-crystal controlled timing reference gives excellent long term stability. Scale factors can be non-whole numbers, for example 1.245 etc.

The displayed value can be 'smoothed' by averaging over a preset period of time. Plus, these displays can accept extremely low input frequencies, such as you may find on a production line for complex machines, where only one or two items per hour are produced.

The displays have a 24V excitation output voltage which you can use to power active sensors and encoders..

You have several digit sizes to choose from, to suit the viewing distance you need.

Suited for these applications and more:-

• Production rate monitoring and display [Special page]
• Material length rate of payout display
• Engine or machine RPM display
• Generator frequency display
• Any physical variable having a frequency signal

This page has 2 models for you to choose from:-

[ERXC] [R175X]

[^] Easy-Reader series of large rate, frequency, speed displays
The Easy Reader series of large displays are our most economical range. They are attractively styled and particularly easy to use. Wall or suspension mounting hardware is available. Dustproof enclosures suit general industrial environments. All settings, including the count, are stored in 10 year memory.
Input connections	Single channel input and 24V Excitation Suits direct connection, 2 wire active or passive loop and 3 wire sensors. Debounce filter available for contact closure input.
Input Signals	Input signal type selected by push-on jumpers... NPN Sensors PNP Sensor Contact closure Quadrature encoder Frequency response:- from 0 to 50 000 Hz
Excitation	24V DC up to 60mA
Digits	4 digits available, with selectable decimal point position Digit Sizes: 57mm high. Legible up to 25 metres away. 102mm high. Legible up to 50 metres away.
Digit colour	Red or green
Scaling	Front panel pushbuttons, with user-friendly menu-free system. Simply tell the display what it show for a given number of input pulses, and it will calculate its own scale factor.
Filtering	Debounce filtering is switch selectable, limits input to 25Hz max.
Last digit Round-up	Not available on this model
User linearisation	Not available on this model
Front panel controls	4 pushbuttons. Can be locked to prevent unautorised access.
Power options	11-30VDC or 95-265 VAC
Accuracy	+/-0.1% of range
Analogue output	Not available on this model
Alarm output	Not available on this model
Serial data output	Not available on this model
Logic inputs	Reset and lockout.
Connectors	Internal detachable screw terminals. Cables come out of enclosure through compression glands.
Case size	57mm digit version: 260mm wide x 140mm high. 102mm digit version: 415mm wide x 195mm high.
Panel cutout	This model is not designed to panel mount
Depth	45mm
Sealing	IP54 all-round
Working Temperature	0 to 50 degrees C
Working humidity	5 to 95% rh, non condensing
See operating Manual for 57mm digit version
See operating Manual for 102mm digit version
See data sheet

[^] R175X Series of large rate / frequency displays
The R175X series is a family of sealed rate / frequency displays which can be wall mounted, suspension mounted or panel mounted. They offer a wide range of digit sizes, brightness options, and led colours. They can also be used to create custom-made multi-line numeric displays for production monitoring and displaying general manufacturing performance. Scaling and adjustment can be done remotely.
Input connections	Single channel input and 24V Excitation Suits direct connection, 2 wire active or passive loop and 3 wire sensor. Debounce filter available for contact closure input.
Input Signals	Input signals selected by push-on jumpers... NPN Sensors PNP Sensors Contact closures Quadrature encoders Frequency response:- from 0 to 50 000 Hz
Excitation	24V DC up to 100mA (5V, 10V and 12V optional)
Digits	5 digits available
Digit colour	Red or green
Scaling	Digital scaling with remote programmer
Filtering	Debounce filtering may be selected which limits the input pulse rate to25 per second.
Front panel controls	None, all settings done with remote wired programmer.
Power	11-30VDC or 95-265 VAC
Accuracy	+/-0.05% of range. Quartz crystal timing reference.
Analogue output	Not available on this model
Alarm output	Optional 2 alarm relays.
Serial data output	Optional RS485
Logic inputs	Reset to 0
Connectors	Internal detachable screw terminals. Cables come out of enclosure through compression glands.
Sealing	IP65 as standard. Optional weather cowl for outdoor mounting.
Working Temperature	0 to 50 degrees C
Working humidity	5 to 100% rh. Condensing humidity OK for 57mm, 102mm and 144mm versions.
See operating Manual
See datasheet

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