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Signal
Converter
(resistance & RTD inputs) |
Converts inputs from resistance transducers e.g. variable resistances, potentiometers, resistance temperature detectors (RTD), platinum resistance thermometers (PRT), into standard voltage or current process signals. Input and output are not isolated from each
other. |
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Converter |
107-1 |
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 Signal converter data sheet
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 Signal converter user guide
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Set Point
Generators
Also see
C16-66>
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These units provide a
current or voltage output, the magnitude of which is controlled either by:
• a front panel mounted control (adjustable type).
• a remote
set-point with the set-point potentiometer and dial supplied loose for remote
mounting e.g. in a control panel or enclosure door or
• a fixed output
which is internally set to the level required. |
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Adjustable |
107-1A |
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Remote set-point |
107-1A/RP |
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Fixed |
107-1/F |
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Set-point generator data sheet
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Bridge Amplifier
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This unit accepts
voltage signals from 0-10mV to 0-100mV from bridge type transducers (e.g. load
cells). The gain is user selectable. Optionally the unit can be calibrated for
voltages from 0-1V to 0-10V. An isolated and stabilised transducer power supply
is provided. |
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107-1B |
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Bridge amplifier data sheet |
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Bridge amplifier user guide |
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Two-wire Trip Amplifier
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This unit requires no external supply but derives its power from the
4-20mA input signal. A normally open contact and a normally closed contact are
provided. |
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107-2/2W |
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2 wire trip amplifier data sheet |
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Signal Isolator |
This unit may be
used as a signal repeater, conditioner, converter and provides isolation between the input
and output signals. The unit can convert a wide range of signals: current to
current, current to voltage, voltage to voltage, voltage to current. Also available as a signal inverter e.g. a 4-20mA input giving 20-4mA
output. |
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107-3A |
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Signal isolator data sheet |
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Analogue to
Frequency
Converter
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Otherwise known as an
integrator when combined with a counter, this unit will convert a voltage or
current input signal into pulses with respect to time; the pulse rate being
proportional to the magnitude of the input signal. Output may be pulse, open
collector or for an electro-mechanical counter. |
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107-5A |
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Analogue to frequency converter data sheet |
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Analogue
Summator
/
averager/ subtractor
|
This unit will sum
together - or subtract - up to three voltage or current input signals. The
output signal may be current or voltage and will be proportional to the sum or
difference of the input signals. This unit will perform an averaging function
with equal input ranges. See 112-6A for number of inputs greater than three. |
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2 Input Version |
107-6A/2 |
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3 Input Version |
107-6A/3 |
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Summator / subtractor data sheet |
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Signal Converter
Square
Root
Extractor
3/2 Law
5/2 Law
|
Provides a voltage or
current signal output which is proportional to one of the following
functions:
• Square root of the input signal (e.g. for DP
transmitter)
• 3/2 law (e.g. for flowrate measurements from flume or
weir)
• 5/2 law (e.g. for flowrate measurements form 'V' Notch
weir)
Input and output signals may be current or voltage and the unit will
convert to signals of different ranges and types. The unit provides an optional
transducer excitation supply. |
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Square Root Extractor |
107-7B/1 |
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3/2 Law |
107-7B/2 |
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5/2 Law |
107-7B/3 |
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Square root extractor data sheet |
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Square root extractor user guide |
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Current loop
Power
Supplies
(linear)
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Rising Output
Characteristic - The voltage output of this unit rises with the load
current. This enables loads to be driven in series with large resistances such
as transmission lines or through zener barriers. 24-32V & 36-48V types
available. |
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107-8 |
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Power supply data sheet |
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General purpose
Power
Supplies
(switched mode)
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A range of general purpose
instrumentation power supplies for powering two-wire transmitters operating on
4-20mA signals or powering 24V signal conditioning modules.
•
Universal input supply 85-260VAC
• High-efficiency, cool
running |
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Single Output
- available in the following versions: 24V @ 100mA, 36V @ 50mA
& 48V
@ 50mA |
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107-9s |
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Dual Output -
2 x 24 V @ 40mA |
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107-9s/2 |
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Power supply data sheet Both
types |
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Frequency
to Analogue
Converter
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The 107-10B provides
an output current or voltage which is proportional to the frequency of
alternating voltage or pulse input signal. Accepts input frequency ranges from
less than 0-1Hz to 0-10Khz. This instrument has many uses in applications
including flowmetering and rotational measurements. Optional PC software
enables range changing, e.g. to suit a turbine meter replacement, and
optimisation of digital filtering to suit site conditions. |
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107-10B |
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Frequency to analogue data sheet |
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Frequency to analogue user guide |
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 download
configuration software
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Multiplier |
Provides an analogue
output signal proportional to the multiplication of two analogue input signals.
The input signals may be of differing types e.g. current / voltage, true /
raised zero, etc.
NB The multiplier can also be made to function as a
squarer. |
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Multiplier |
107-12A |
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Multiplier data sheet |
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Multiplier user guide |
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Rate Limiter |
A range of
instruments providing functions which control the rate of change in the output
signal for a change in input signal. These units may also provide signal
conversion. The time constant is adjustable by a front panel mounted dial.
Times to FSD are calibrated to order and are typically available from 0-60s up
to 0-120s. |
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Rate limiter data sheet for all types |
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Slow Up Fast Down
Response Unit: the response curve is an exponential and the time to steady
state output is the same for any magnitude of change of a rising input signal.
However for a negative going change in input signal, the output response is
virtually instant. |
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107-17/0 |
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Rate Limiter:
the response curve is linear giving a ramp with a fixed rate of change. The
effect on the output is a response time proportional to the magnitude of the
input signal change. |
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107-17/1 |
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Slow up, Slow Down
Response Unit: the reponse curve is similar to the 107-17 /0 but the rate
of change is also controlled for negative going input signals |
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107-17/2 |
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Rate of Change
Monitor |
This unit provides an
output signal, with magnitude proportional to the rate of change of the input
signal. |
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107-18 |
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Rate of change monitor data sheet |
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Rate of change monitor user guide |
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