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Frequency/pulse converters

This category covers a diverse range of instruments for frequency /pulse type inputs i.e. volt-free contact, voltage pulse input, current pulse input, open collector transistor pulse, sine, square or triangular waveforms, from e.g. proximity switches, turbine meters, pulse output type flowmeters, etc.

The Frequency to Analogue Converters Types C16-10 & B12-10B - provide an isolated analogue output signal (voltage or current) proportional to the pulse rate of the input signal. Applications include signal conversion for water meter pulse units and turbine meters.

The Pulse Isolator Type 112-51 isolates and conditions the input signal and provides a noise-free pulse, open collector or relay type output signal.

The Frequency Scaler Type 112-26 scales the frequency of the input signal by a non-integer number and provides a pulse, open collector or relay type output signal.

The Frequency Divider Type 112-25 divides the frequency of the input signal by an integer number and provides a pulse, open collector or relay type output signal.

The Digital Summator Type 112-60 sums up to five pulse input signals and provides a pulse, open collector or relay type output signal.

Frequency/pulse converter selection guide

PLEASE NOTE, for type B12-10B other outputs within the
following ranges can be provided.

Currents from 0-1mA to 0-30mA; Voltage from 0-1V to 0-10V;
Bidirectional voltage signals (e.g. ± 5 V); Reverse acting current and
voltage signals (e.g. 4-20mA to 20-4mA); Current sink output signals.

Key: Datasheet; User guide

TYPE	INPUT	OUTPUT	MAIN FEATURES	FIELD RE-RANGE	POWER	MOUNTING
C16-10	User selectable: open-collector, volt-free contact, 1-3mA pulse (NAMUR), and voltage (sine, square or triangular waveforms)	Current 0-10mA 0-20mA 4-20mA Current sink Voltage 0-5 V 1-5V 0-10V 2-10V	PC software enables range changing, e.g. to suit a flow meter replacement, and optimisation of digital filtering to suit site conditions.	Yes	Universal AC / DC 85 - 260 VAC, 24 - 200 VDC	DIN rail
B12-10C	Voltage pulse 10mV ptp to 250V RMS Current pulse e.g. 1-3mA Wave- forms sine, square or triangular Others open collector transistor ~ volt-free contact	Current 0-10mA 0-20mA 4-20mA Current sink Voltage 0-5 V 1-5V etc	PC software enables range changing, e.g. to suit a flow meter replacement, and optimisation of digital filtering to suit site conditions.	Freq. range & Filtering	AC 110, 220, 230 Low voltage: 11-32VDC / 12-24VAC	Wall or DIN rail
112-51	Voltage pulse 10mV ptp to 250V RMS Current pulse e.g. 1-3mA Wave -forms sine, square or triangular Volt-free contact C/O contact (high bounce rejection) ~ Contact closure Others open collector transistor	Optically isolated open collector transistor ~ 24V E.M. counter output ~ Relay C/O contact (10Hz max) ~ Other pulse output voltages (e.g. 5V) available to order.	Isolates ~ Cleans up noisy signals ~ Signal type / level changes	Trigger level	AC 110, 220, 230 Low voltage: 11-32VDC / 12-24VAC	Wall or DIN rail
112-25/2			Non-integer division 0-99	Yes - Division setting	AC 110, 220, 230 Low voltage: 11-32VDC / 12-24VAC	Wall or DIN rail
112-25/4			Non-integer division 0-9999 (+ further division settings of divide by 10 or 100)	Yes - Division setting	AC 110, 220, 230 Low voltage: 11-32VDC / 12-24VAC	Wall or DIN rail
112-26			Scale frequency of a signal e.g. for flow meter factor etc	Yes - Rate multiplier and divider settings	AC 110, 220, 230 Low voltage: 11-32VDC / 12-24VAC	Wall or DIN rail
112-60	24V pulses ~ Volt-free contacts ~ others e.g. TTL to order	Optically isolated open collector transistor ~ 24V E.M. counter output ~ Other pulse output voltages (e.g. 5V) available to order.	Sums up to 5 inputs ~ Optional subtract output (for use with add/subtract counter)	No	AC 110, 220, 230 Low voltage: 11-32VDC / 12-24VAC	Wall or DIN rail

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