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Q436
Potentiometer Input, Field Configurable Signal Conditioner


TECHNICAL SPECIFICATION (Q436)
Potentiometer Input
Resistance (End to End): 100W up to 100KW
Input Impedance: >1MW
Input Excitation: 500mV, 5mA maximum drive.
Zero Turn-Up: 80% of full scale input
Span Turn-Down: Down: 80% of full scale input (Table 1)
Common Mode Rejection: 1800VDC (input to power)
Output Voltage Output
Output: 0-5V, 0-10V
Source Impedance: <10W
Drive: 10mA, max. (1KW min. @ 10V)
Current Output Output: 0-1mA, 0-20mA, 4-20mA
Source Impedance: >100KW
Compliance: 0-1mA; 7.5V, max. (7.5KW, max.) 0-20mA; 12V, max. (600W, max.) 4-20mA; 12V, max. (600W, max.)
Accuracy (Including Linearity, Hysteresis)
±0.1% maximum at 25°C.
Stability Temperature: <±0.05%/°C maximum of full scale range.
Response Time (10 to 90%) <200mSec., typical.
CMRR 120dB @ DC, >100dB @ 60Hz
Isolation 800VDC between line power and input, output
EMC Compliance (CE Mark)
Emissions: EN50081-1
Immunity: EN50082-2
Safety: EN50178
LED Indication (green) Active DC power
Humidity (Non-Condensing)
Operating: 15 to 95% (@ 45°C)
Soak: 90% for 24 hours (@ 65°C)
Temp Range Operating: 0 to 55°C (32 to 131°F)
Storage: -25 to 70°C (-13 to 158°F)
Power Consumption: 1.5W typical, 2.5W max
Range: 100 to 240VAC, ±10%, 50 to 400Hz
Weight 0.48 lbs
Agency Approvals Model Q436 is designed to meet or exceed UL and CSA requirements. Certification and approval pending. CE Compliance per EMC directive 89/336/EEC and Low Voltage 73/23/EEC.

Application
The ActionI/Q Q436 field configurable, potentiometer input signal conditioner is useful in transmitting process control setpoints to remote PID controllers or interfacing position or level sensors to data acquisition and control systems.

The Q436's high density DIN rail mounting offers an extremely compact solution for saving valuable panel space.

Configuration
A major advantage of the Q436 is its wide ranging capabilities and ease of configuration.

For example, 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. In this case the Q438 can easily be adjusted with the zero and span to provide a full scale output signal (e.g. 4-20mA) representing 0-25% or even 50-75% of the potentiometer input.

Unless otherwise specified, the factory presets the Model Q436 as follows:

Input Range: 0 to 100%
Output: 4 to 20mA

The Q436 is AC powered and will accept any power between 85 and 265VAC. For other output ranges, refer to Tables 1 and 2 to reconfigure switches SW1 and SW2 for the desired input and output ranges.

Calibration
  1. With power disconnected, set the output and input switch selectors (SW1 and SW2) to the desired ranges (Tables 1 and 2).
  2. Connect the input to a potentiometer. Connect the output to the actual device load (or a load approximately equivalent to the actual device load value) and apply power.
  3. Set the input potentiometer to the desired minimum and adjust the zero potentiometer for the desired minimum output.
  4. Set the input potentiometer to the desired maximum and adjust the span potentiometer for the desired maximum output.
  5. 5. Repeat steps 3 and 4, if necessary, for best accuracy.