Compass Instruments Product Facts Sheet
_____________________________________outputs up to 10 amps and is packaged in a NEMA 4X housing with a small 3.54” X 5.54” footprint. Using the latest multiphase technology provides high efficiency and a ruggedized design that will operate over a temperature range of -40 degrees C to +65 degrees C. The input voltage range is 10 to 23VDC. This unit is excellent for operation off 12V battery/alternator systems to provide 24VDC instrumentation power. The output is current limited so no fuses are needed. Various models are available with outputs from 4 to 10 amps.
Our 12/24 VDC Converter
_______________________________________switches up to 15A at up to 60 VDC per channel. All channels are isolated from each other and from the inputs. The ruggedized unit can handle surge currents up to 50 amps and drive large inductive loads. Operating temperature range is -40 degrees C. to +65 degrees C. The unit is housed in a NEMA 4X housing with a small 3.54” X 5.54” footprint. The input control signal can be any voltage from 3 to 24VDC. Installation is simplified with Deutsch connectors for input and output connections. Options are available with individual control signals for each of the four outputs, two control inputs each driving a pair of outputs, or just one control signal that activates all four sections.
The Quad Solid State Relay
_________________________________________is a DIN rail mounted module that cleans spikes and noise from 4-20 mA signals. Pressure transmitters often output current spikes caused by pump pulsations or valve hammer. At times even 60 Hz from high current wiring runs will be injected into the 4-20 mA signal. Flow meters mounted in less than perfect applications often produce an unstable output signal. This module receives these problem 4-20 mA signals and outputs a clean 4-20 mA signal for perfect data logging and better control. Three versions are available for 27 to 80 db noise attenuation.
The Analog Signal Dampener
__________________________________________________________________may be used for applications requiring frequency feedback to two instruments, such as a controller and a data logger. This unit provides 2500 volts AC or DC isolation to prevent ground loops and power problems. It will handle frequencies up to 100KHz and the open collector output will sink up to 2 amps. Each section is powered with 9-30VDC and operates over the temperature range of -40 degrees C. to +70 degrees C. The input threshold is 2.4VDC and has 45MV hysteresis.
The DIN rail mounted Frequency Isolator/Splitter
______________________________________receives inputs from two 10K ohm potentiometers and outputs two 488 Hz PWM signals from 2% to 100% proportional to the potentiometer setting. The unit requires 7 to 30VDC power. Each open collector output will switch up to 40VDC and sink up to 10 Amps. Operating temperature range is -40 degrees C. to +70 degrees C. This unit is great for driving hydraulics controls with coils requiring a variable current. The inductance of the coil will tend to average the current and the frequency may provide a small amount of dither providing better control than a constant DC current.
The Dual PWM Transmitter
________________________________provides an analog output proportional to a 10K potentiometer input, providing an easy way to produce a manual control for many types of valves, actuators, pumps, cylinders, etc. Additionally, it may also be used as a valve position transmitter when connected to a 10K pot that is coupled to a control valve actuator. The unit is powered from 9-30VDC and the operating temperature range is -40 degrees C to +70 degrees C. Jumper selections allow the output to be programmed for 4-20 mA, 0-20 mA, 1-5VDC or 0-5VDC.
The Analog Transmitter
________________________________________provides isolated outputs linearly proportional to their respective 10K potentiometer inputs. The unit operates with input voltages of 9-30VDC over the temperature range of -40 degrees C. to +70 degrees C. Several ranges are available: 0.5 to 4.5VDC for controlling engine speed on certain Detroit Diesel engines; 3 to 6VDC, 6 to 9VDC, or 3 to 9VDC for controlling Danfoss Valves; and 0 to 5VDC, 1 to 5VDC, or 0 to 10VDC for general control applications. Each output is powered separately so that each system may be controlled without causing ground loops.
The Dual Voltage Transmitter