The DRI-PT is a DIN rail mount,
potentiometer input signal conditioner with
1800 Vdc isolation between AC power and
the input/output circuitry. The input provides
a constant voltage and is designed to accept
any 3-wire potentiometer from 100 Ω to 100 kΩ.
The field configurable output is switch selectable
providing a 0 to 5V, 0 to 10V, 0 to 1 mA, 0 to 20 mA
or 4 to 20 mA DC signal.
Wide ranging, precision zero and span pots, used in
conjunction with DIP switches, allow 80% adjustablity of
offset and gain to transmit a full scale output from any
20% portion of the potentiometer input.
The DRI-PT is useful in transmitting process control
setpoints to remote PID controllers or interfacing
position or level sensors to data acquisition and control
systems. The high density DIN rail mounting offers an
extremely compact solution for saving valuable panel
space.
In a valve positioning application a potentiometer is
sometimes used as a feedback signal. Quite often a
wide open valve is only a 25% turn of the feedback
potentiometer. The DRI-PT can easily be adjusted with
the zero and span to provide a full scale output signal
(e.g. 4 to 20 mA) representing 0 to 25% or even
50 to 75% of the potentiometer input.
The factory default configuration for the DRI-PT is as follows:
Input Range: 0 to 100% Output: 4 to 20 mA
Specifications POTENTIOMETER INPUT End-to-End Resistance: 100 Ω up to 100 kΩ Input Impedance: >1 MΩ Input Excitation: 500 mV, 5 mA maximum drive Zero Turn-Up: 80% of full scale input Span Turn-Down: 80% of full scale input Common Mode Rejection: 1800 Vdc (input to power)
OUTPUT
Voltage Output: Range: 0 to 5V, 0 to 10V (dip-switch selectable) Source Impedance: <10 Ω Drive: 10 mA max (1 kΩ min @ 10V) Current Output: Range: 0 to 1 mA, 0 to 20 mA, 4 to 20 mA (dip-switch
selectable) Source Impedance: >100 kΩ
Compliance: 0 to 1 mA: 7.5V max (7.5 kΩ max) 0 to 20 mA: 12V max (600 Ω max) 4 to 20 mA: 12V max (600 Ω max) Accuracy (Including Linearity, Hysteresis): ±0.1% maximum at 25°C Temperature Stability: <±0.05%/°C maximum of full scale range Response Time (10 to 90%): <200 msec, typical Common Mode Rejection: 120 dB @ DC, >100 dB @ 60 Hz Isolation: 1800 Vdc between line power and input, output LED Indication (Green): Active DC power Humidity (Non-Condensing): Operating: 15 to 95% RH @ 45°C (113°F) Soak: 90% RH for 24 hours @ 65°C (149°F) Temperature Range: Operating: 0 to 55°C (32 to 131°F) Storage: -25 to 70°C (-13 to 158°F) Power: 100 to 240 Vac, ±10%, 50 to 400 Hz; 1.5 W typical, 2.5 W max Weight: 218 g (0.48 lb)
† All dollar amounts on this site are shown in US currency.
Note: An ACPB power rail is required to power the modules and is ordered separately. Ordering Example: (1) ACPB-2 AC power distribution bus for 2 modules, USD$1,790.00,