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Action Instruments ActionI/Q® DC Powered

Four-wire Transmitters & Alarms Selection Guide
Input Selection Typical Application Description Model (Channels)
DC Voltage or Current
(V, mV, A, mA)		 Process alarming, DC to DC isolation, voltage/current scaling and conversion for PLC and DCS I/O interface DC limit alarm  Q108 (2 setpoints) 
DC isolator (fast response time) Q404 (1,2)
Two wire transmitter input isolator Q404-3 (1)
DC isolator, 1 input, 2 output  Q404-4 (1)
Field configurable DC isolator Q408 (1,2) 
DC Input, Field Configurable Isolator with Math Functions Q498
Potentiometer 
(0-100 ohm up to 0-100K ohm) 		 Position feedback, setpoint transmitter, level transmitter Field configurable potentiometer to DC signal conditioner Q438 (1)
Strain Gauge 1 to 10V adjustable excitation Pressure control, pressure status monitoring, weight, load cell conditioning and data acquisition Bridge input field configurable isolator Q448 (1)
AC Voltage or Current 
(V, mV, A, mA)		 Voltage/current scaling, power monitoring, isolation, buffering  AC input field configurable isolator Q468 (1)
Frequency
(0-2Hz to 0-10KHz)		 Flow/velocity control or monitoring, motor speed control, scaling, pulse accumulation, integration totalizing Frequency input field configurable isolator Q478(1)
DC Input, Field Configurable Isolator with Math Functions Q498
RTD 
(PT 100 ohm, NI110 ohm, CU10 ohm)
Thermocouple
(Types B, C, E, J, K, N, R, S, T)		 Temperature transmitting, signal isolation and amplification Instant Accuracy temperature to DC isolator DIP switch or AC configurable Q488 (1)
The ActionI/Q DIN rail mount package was developed to reduce the cost of signal conditioning. The two primary design considerations were to house as many channels of isolated I/O as possible and to reduce the wiring requirements in terms of the number of power connections and I/O disconnects. The idea was that providing more I/O channels per module would reduce per channel material cost and the wiring savings would make cost of ownership low in the long run. 

The result was a narrow ¾ inch, plug in, DIN rail mount package with the capability to fit two full size printed circuit boards and provide up to 22 terminals for plug-in I/O. The ActionI/Q now enables Action Instruments to provide some of the most cost effective signal conditioning and isolation solutions in the world. Examples include the four channel RTD transmitter (model Q510) and the four channel (4-20mA) loop powered isolator (model Q500), from the Original ActionI/Q Series of multi-channel transmitters.

DC Action I/Q 

The DC Action I/Q Series is very similar to the AC ActionI/Q product line. The main difference is that the DC ActionI/Q line is DC powered, accepting 9 to 30V. The DC powered I/QRail is optional since the DC Action I/Qs have both DC power terminals as well as the power rail connector, unlike the AC ActionI/Q.

DC Input Limit Alarm

Q108
Provides relay contact closure(s) at a preset DC input level 
  • Easy field configurable input ranges 
  • TouchCAL™ technology for precise setpoint calibration 
  • Adjustable setpoints: programmable HI/LO or Failsafe/Non-failsafe 
  • High density DIN rail mounting 
  • Flexible power supply accepts 9 to 30VDC 
  • 24VDC transducer excitation 
  • SnapLoc™ plug-in terminals for low MTTR 
  • ASIC technology for high reliability 
  • Lifetime warranty
 DC Input Limit Alarm
The ActionI/Q model Q108 is a DIN rail mount, DC voltage or current input limit alarm with dual setpoints and two contact closure outputs. The field configurable input and alarm functions offer flexible setpoint capability. Input voltage spans from 10mV to 200V and input current from 1mA to 100mA. Bipolar inputs are also accepted. The Q108 is CSA and UL certified, and CE Mark compliant.

DC Input Multi-channel Isolator

Q404-1/2
Provides 1 or 2 fully isolated DC output signals in proportion to 1 or 2 DC inputs
  • Fast response 3500Hz bandwidth
  • Multi-channel design provides 1 or 2 four-wire transmitters in a single package
  • Protects equipment and prevents ground loops with 2000VAC isolation
  • High density DIN rail mounting 
  • Flexible DC power: 12 to 24VDC
  • LED trip and input indicators 
  • SnapLoc™ plug-in terminals for low MTTR 
  • Three year warranty
 DC Input Multi-channel Isolator
The ActionI/Q model Q404-1/2 is a DIN rail mount, DC input signal conditioner with 2000VAC isolation between input, output and power. Factory configured input and output ranges support bipolar voltage signals. Typical applications of four-wire transmitters include accepting inputs from various field instruments (e.g. level, flow, pressure) and converting them into standard industrial signals to be monitored by a DCS or PLC. The Q404-1/2 is CSA and UL certified, and CE Mark compliant.

Two-wire Transmitter Input Isolator

Q404-3
Provides a fully isolated DC output signal in proportion to two-wire transmitter input
  • 24VDC excitation source for two-wire transmitter
  • Protects equipment and prevents ground loops with 2000VAC isolation
  • High density DIN rail mounting 
  • Flexible DC power: 10.8 to 26.4VDC
  • LED trip and input indicators 
  • SnapLoc™ plug-in terminals for low MTTR 
  • Three year warranty
 Two-wire Transmitter Input Isolator
The ActionI/Q model Q404-3 is a DIN rail mount, signal conditioner with 2000VAC isolation between input, output and power. Factory configured output ranges support standard industrial control signals, such as 4 to 20 mA and 0 to 10 V. Typical applications include accepting DC current signals and inputs from various field instruments (e.g. level, flow, pressure sensors) and converting them into standard industrial signals to be monitored by a DCS or PLC. The Q404-3 is CSA and UL certified, and CE Mark compliant.

DC Input Isolator, Signal Splitter

Q404-4
Provides 2 fully isolated DC output signals in proportion to 1 DC input
  • Protects equipment and prevents ground loops with 2000VAC isolation
  • Multi-channel design provides 1 in/2 out in a single package
  • High density DIN rail mounting 
  • Flexible DC power: 10.8 to 26.4VDC
  • LED trip and input indicators 
  • SnapLoc™ plug-in terminals for low MTTR 
  • Three year warranty
 DC Input Isolator, Signal Splitter
The ActionI/Q model Q404-4 is a DIN rail mount, DC input signal conditioner with 2000VAC isolation between input, output and power. Factory configured input and output ranges support bipolar voltage signals. Typical applications of four-wire transmitters include accepting inputs from various field instruments (e.g. level, flow, pressure) and converting them into standard industrial signals to be monitored by a DCS or PLC. The Q404-4 is CSA and UL certified, and CE Mark compliant.

DC Input Field Configurable Isolator

Q408
Provides 1 or 2 fully isolated DC output signals in proportion to 1 or 2 DC inputs
  • Easy field configurable input and output ranges 
  • Protects equipment and prevents ground loops with 1800VDC isolation
  • TouchCAL™ technology for precise calibration 
  • Multi-channel design 
  • High density DIN rail mounting 
  • Flexible power supply accepts 9 to 30VDC 
  • SnapLoc™ plug-in terminals for low MTTR 
  • ASIC technology for high reliability 
  • Lifetime warranty
 DC Input Field Configurable Isolator
The ActionI/Q model Q408 is a DIN rail mount, DC voltage or current input signal conditioner with 1800VDC isolation between input, output and power. The field configurable input and output offers flexible, wide ranging capability for DC current and voltage ranges. Input voltage spans from 10mV to 100V and input current from 1mA to 100mA. The Q408 is CSA and UL certified, and CE Mark compliant.

DC Input, Field Configurable Isolator with Math Functions

Q498
Provides Two Isolated Analog Inputs, One Frequency Input with One Analog Output and One Frequency Output, as well as a Discrete Input & Output 
  • Multi-Function, Multi-Channel Input for a Wide Range of Applications 
  • Functions as Either a DC-Frequency or Frequency-DC Converter for use in Totalization/Integration Applications
  • TouchCAL Technology for Easy Non-Interactive Zero and Span Adjustments
  • Provides Math Function Capability Supporting Many Process Control Functions
  • Switch Selectable or PC Programmable Ranges for the Greatest Flexibility in Installation
  • SnapLocTM, Plug-In Terminals for Low MTTR
  • Three Year Warranty
The ActionI/Q model Q498 is a DC powered, DIN rail mount, DC input signal conditioner. The unit is fully isolated to 1800V between input, output and power. The Q498 has two isolated inputs that will accept one DC voltage or current input signal. The one output delivers either DC bi-polar voltage or uni-polar current. The Q498 also has a separate frequency input channel and a frequency output, as well as a discrete input and output channel. The field configurable input and output feature offers flexible, wide ranging capability for DC current and voltage signals. The Q498 can also be configured via a PC with the optional C698 Windows based GUI software. 

The Q498 also has the added capability to perform math calculations on the input values. This provides the ability to perform single or double input math functions. The frequency input can also have the math functions applied (with the exception of the Sq and Sqroot). The available operators are: +, -, *, / , Sq, Sqroot & Average. Process control functions include Hi/Lo Select (utilizes the Digital Output for channel identification), Rate of Change Limiter and Track & Hold (utilizes the Digital Input for the hold control). A 25-point linearization function is available for Channel 1 Analog input only. 

The field configurable input of the Q498 can be set via DIP switches for any one of four voltage ranges from ±150mV to ±150V or two current ranges of ±2.5mA or ±25mA. The field configurable output is linear to the input and can be set for ±10V, 0-10V or 0-20mA. Math functions can be used to scale.

Potentiometer Input Signal Conditioner

Q438
Provides a DC output signal in proportion to a potentiometer input
  • Easy field configurable output ranges 
  • Wide ranging zero and span with 80% adjustability
  • Protects equipment and prevents ground loops with 1800VDC isolation
  • High density DIN rail mounting 
  • Flexible DC power: 9 to 30 VDC
  • SnapLoc™ plug-in terminals for low MTTR
  • ASIC technology for high reliability
  • Lifetime warranty
 Potentiometer Input Signal Conditioner
The ActionI/Q model Q438 is a DIN rail mount, potentiometer input signal conditioner with 1800VDC isolation between input, output and power. The input provides a constant voltage and is designed to accept any three-wire potentiometer from 100W to 100KW. The field configurable output is switch selectable for up to 5 DC current and voltage ranges. Typical applications include transmitting process control setpoints to remote PID controllers or interfacing position or level sensors to DAC systems. The Q438 is UL and CSA certified, and CE Mark compliant.

Bridge Input Signal Conditioner

Q448
Provides an isolated DC output signal in proportion to a bridge/strain-gauge input
  • Easy field configurable input and output ranges
  • Adjustable bridge excitation
  • TouchCAL™ technology for precise calibration
  • Protects equipment and prevents ground loops with 1800VDC isolation
  • Flexible DC power: 18 to 30 VDC
  • SnapLoc™ plug-in terminals for low MTTR
  • ASIC technology for high reliability
  • Lifetime warranty
 Bridge Input Signal Conditioner
The ActionI/Q model Q448 is a DIN rail mount, bridge/strain-gauge input signal conditioner with 1800VDC isolation between input, output and power. The field configurable input can be set via DIP switches for any one of 11 voltage ranges from 10mV to 200mV. The field configurable output is switch selectable for up to 5 DC current and voltage ranges. Typical applications include isolating ground loops and interfacing bridge sensors to DAC systems. The Q448 is CSA and UL certified, and CE Mark compliant.

AC Input, Field Configurable Isolator

Q468
Provides an isolated DC output signal in proportion to an AC input
  • Easy field configurable input and output ranges
  • TouchCAL™ technology for precise calibration
  • Protects equipment and prevents ground loops with 1800VAC isolation
  • Flexible DC power: 9 to 30VDC
  • High density DIN rail mounting
  • SnapLoc™ plug-in terminals for low MTTR
  • ASIC technology for high reliability
  • Lifetime warranty
 AC Input, Field Configurable Isolator
The ActionI/Q model Q468 is a DIN rail mount, AC input signal conditioner with 1800VAC isolation between input, output and power. The field configurable input can be set via DIP switches for AC inputs ranging from 5mA to 100mA or 50mV to 300V. The field configurable output is switch selectable for up to 5 DC current and voltage ranges. Typical applications include energy management, load shedding, motor current monitoring, locked rotor detection, isolation and data acquisition. The Q468 is CSA and UL certified, and CE Mark compliant.

Frequency Input Signal Conditioner

Q478
Provides an isolated DC output signal in proportion to an input frequency
  • Easy field configurable input and output ranges
  • TouchCAL™ technology for precise calibration
  • Protects equipment and prevents ground loops with 1800VDC isolation
  • Flexible DC power: 9 to 30VDC
  • High density DIN rail mounting
  • SnapLoc™ plug-in terminals for low MTTR
  • ASIC technology for high reliability
  • Lifetime warranty
 Frequency Input Signal Conditioner
The ActionI/Q model Q478 is a DIN rail mount, frequency input signal conditioner with 1800VDC isolation between input, output and power. The field configurable input can be set via DIP switches for frequency inputs ranging from 2Hz to 10KHz. The field configurable output is switch selectable for up to 5 DC current and voltage ranges. Typical applications include interfacing pulse output transducers, such as turbine flow meters and magnetic pickups, to data acquisition and control systems. The Q478 is CSA and UL certified, and CE Mark compliant.

Temperature Input Isolator

Q488
Provides an isolated DC output signal in proportion to a temperature input
  • Instant Accuracy™ technology ensures superior measurement accuracy 
  • Easy field configurable input and output ranges
  • PC or DIP switch configuration 
  • TouchCAL™ technology for precise calibration
  • Protects equipment and prevents ground loops with 1800VDC isolation
  • Flexible DC power: 9 to 30VDC
  • High density DIN rail mounting
  • SnapLoc™ plug-in terminals for low MTTR
  • Lifetime warranty
 Temperature Input Isolator
The ActionI/Q model Q488 is a DIN rail mount, temperature input signal conditioner with 1800VDC isolation between input, output and power. The field configurable input can be set via PC or DIP switches for RTD, thermocouple, mV or ohm inputs. The field configurable output is selectable for any range from 0 to 20mA or 0 to 10V DC. Typical uses include eliminating ground loops in any temperature measurement application and providing an interface to data acquisition and control systems. The Q488 is CSA and UL certified, and CE Mark compliant.

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