Counters and totalisers

The meters and controllers on this page accept pulse inputs from such sensors as NPN, PNP or namur proximity switches, rotary encoders etc. All can be easily scaled to read total pulses, distance, length, difference etc..

Suited for these applications and more:-

• Parts counting
• Length of material produced
• Distance travelled
• Difference between two pulse trains
• The sum of 2 pulse trains

This page has 1 model for you to choose from:-

[INT2-C] [MAXI-INT2-C]

[^] Model INT-C
The INT-C is a low cost yet highly flexible and easy to use 1/8 DIN scalable counter / totalizer. It can also be used as an hours-run meter, bake timer, manufacturing cycle timer, period timer and scaleable ratemeter or frequency meter with 1 input channel. It has a number of useful plug-in options which make it ideal for use in many control and monitoring applications.
Input connections	Two input channels available. Excitation voltage output.
Input Signal	The meter can accept NPN, PNP, contact closures, 5V pulses, 24V pulses, low level AC and high level AC signals. Debounce filtering for contact inputs. Frequency range 0.03Hz to 50 000 Hz. for single channel frequency and total. Frequency range 0 Hz to 2 500 Hz. for quadrature.
Excitation	24V DC up to 60mA
Digits	6 digits, 14mm high. Legible up to 7 metres away
Digit colour	Red or green
Scaling	Digital menu-free system. Floating point scale factors for precise scaling. No need to calculate scale factors - simply enter a typical input frequency and desired reading value and the meter will compute scale factor automatically.
Filtering	Debounce filering for contact closure inputs.
Last digit Round-up	not available on this model
User linearisation	not available on this model
Front panel controls	Calibration, Reset, Max/Min, Alarms
Power	11-30VDC or 95-265 VAC
Accuracy	No errors for whole number scale factors.
Thermal stability - range	No drift
Thermal stability - offset	No offset errors
Analogue output	Optional plug-in module 4-20mA into 0 to 500 Ohms 0-10V into loads>600 Ohms -5 to+5V into loads>600 Ohms Fully isolated from input and power Fully scalable with digital precision Forward and reversion action possible
Alarm output	Optional plug-in modules 2 Alarms rated 5A 250VAC, SPST 4 Alarms rated 5A 250VAC, SPST Adjustable hysteresis Energise or de-energise on trip Normally open or closed
Serial data output	Optional plug-in modules. RS232 1200 baud output only. RS422 1200 baud output only. RS485 Addressable DeviceNet Addressable Modbus Addressable Profibus DP Addressable
Logic inputs	ZERO and RESET
Connectors	Detachable screw terminals
Bezel size	96mm wide x 48mm high. 13mm forward.
Panel cutout	92mm wide x 45mm high. +1mm, -0mm
Depth behind panel	125mm including connectors + cable.
Sealing	IP65 standard, IP67 with optional SPC4 cover

[^] Model MAXI-INT2-C large format panel meter
The MAXI-INT2-C is a larger format version of the INT2-C digital meter. This gives improved visibility and larger buttons. It has a number of useful plug-in options which make it ideal for use in many control and monitoring applications. The display can be configured to appear as a mirror image, so that it appears legible when viewed as a reflection. You can also set the unit to 'beginner' mode when setting it up, which gives you more time to read the manual, without the meter timing out and going back to measurement mode.
See operating Manual (new Mk2 version)
See datasheet
See model number & pricing calculator
MAXI-INT2-C Specifications
Approvals	Produced to IPC 610 Class 2 Standard UL ISO9001:2008 QA CERT.
Input connections	Up to 4 pulse input ports plus sensor excitation output.
Input Signals	Configurable for :- Contact closure NPN PNP Quadrature Contact closure 24V Pulses 5V pulses Programmable debounce filter to eliminate false counting from contact bounce. When in totaliser mode, the meter can add together and scale counts from up to 4 independent input signals.
Excitation	24V DC up to 60mA, to power input sensor.
Digits	6 digits, 20mm high. Legible up to 13 metres away. 10 readings per second. Variable brightness from front panel.
Digit colour	Red - standard. Green - optional
Scaling	Digital menu-free system, fully scalable with selectable decimal point position. In addition, a separate Offset and Scale variables allow you to convert the reading, without affecting calibration. For example from kg to pounds, litres to gallons etc.
Filtering	Adjustable 0 to 25 Seconds
Front panel controls	Calibration, Tare, Reset, Max/Min, Alarms
Power	100-240 VAC std, 11-30VDC option. 10VA Power burden, max.
Accuracy	+/-0.05% of range
Thermal stability - range	+/- 15ppm/oC
Thermal stability - offset	+/- 0ppm/oC
Analogue output	Optional plug-in 16 bit module Linearity +/- 0.02% of range 0-20/4-20mA into 0 to 500 Ohms Resolution 0.4uA 0-10V into loads >600 Ohms Resolution 0.2mV -10 to+10V into loads >600 Ohms Resolution 0.4mV Accuracy 0.1% of range Stability 50ppm/C Fully isolated from input and power Fully scalable with digital precision Special features Forward and reverse action possible Can be set to operate from nett or gross value.
Alarm output	Optional plug-in relay SPST modules 2 Alarms rated 5A 250VAC, SPST 4 Alarms rated 2A 250VAC, SPST Selectable normally open or normally closed Optional plug-in relay SPDT modules 2 Alarms rated 5A 250VAC, SPDT Optional plug-in solid state modules 2 Alarms rated 50V 100mA DC. Adjustable hysteresis In-flight compensation facility. Energise or de-energise on trip Special features Adjustable timers to set energise and de-energise delays. Can also be set to pulse for applications needing less than 100% duty cycle. In-band and out-of-band alarm function. Manual and automatic in-flight compensation. Can be set to operate from nett or gross value.
Serial data output	Optional plug-in modules. RS232 RS485 Addressable On demand or continuous output. Special features Can include time and date with RTC option fitted. Can be set to operate from nett or gross value.
Logic inputs	3 logic inputs, individually configurable for Hold, Reset, Tare, Peak/valley, Nett/Gross, Memory Address Normally open, NPN or contact closure input to activate. 5V open circuit, 1mA switched current.
Real time clock option	Accuracy better than 2 minutes per year. Allows date and time to be included in serial data, for example for printing time-stamped records. Automatic summer/winter time correction for Europe and USA Battery backup to maintain timing whilst switched off. Type = CR1620 3V Lithium
Environmental	Storage -20 to +70C Operating 0 to 50C Non condensing.
Connectors	Detachable screw terminals
Bezel size	144mm wide x 72mm high. 13mm forward.
Panel cutout	138mm wide x 67.5mm high. +1mm, -0mm
Depth behind panel	150mm including connectors + cable.
Sealing	IP54 standard, IP65 with optional SPC4-M cover