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Instrumentation & Controls |
| I&C replacements for obsolete nuclear process control instrumentation |
| Analog & Digital Class 1E Isolators |
| Foxboro H-Line Replacements |
| Hagan 7100 Replacements |
| GEMAC 5000 Replacements |
| Bailey 7000 Replacements |
| Bailey 820 Replacements |
| Bailey 860 Replacements |
| Versatile Products |
| Lisle-Metrix Products |
| Power Supplies & Repairs |
| Foreign and domestic, switching, linear, DC/DC converters, high voltage supplies, variable output lab supplies, and repair services |
| BWR Products |
| Boiled Water Reactor outage and maintenance equipment |
| PWR Products |
| Pressurized Water Reactor outage and maintenance equipment |
| StressWave Systems |
| StressWave Systems' innovative Stress Wave Analysis (SWAN™) Technology |
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Scientech’s NUSI modules are form-fit-function replacements for the original Foxboro modules.
Click over folds below to expand information |
The SPS500 Single Power Supply is a linear solid state module that replaces the obsolete Foxboro 610A power supply. The SPS500 converts input ac power to a semi-regulated output voltage for use as a current loop power source. Standard SPS500 units have an internal 500 Ω potentiometer (pot) to adjust total loop resistance. All versions of the SPS500 are available with an optional extended range internal resistance, using a 1,000 Ω pot in place of the 500  pot.
 View full product sheet (PDF, 138kB)
The PIDA700 Controller replaces the obsolete Foxboro 61H and 62H controllers. The PIDA700 output is a configurable function of the difference between the input(s) and a setpoint (dial, internal, or external). The PIDA700 is a solid-state analog amplifier that provides a selectable combination of proportional, reset (integral), and/or derivative control capabilities.
The new Version 5 PIDA700 provides a printed circuit configuration card in place of the earlier wiring array, and zero drift in Manual Mode. Internal jumpers and the configuration card allow the PIDA700 to match the operation of virtually any of the Foxboro 61H or 62H controllers.
View full product sheet (PDF, 177kB)
The DAM503 Dual Alarm Module replaces the obsolete Foxboro H-line bi-stable instrument, as a solid-state unit that produces a voltage or contact closure when one input or two inputs exceed preset limits. All input, output, and logic options are available with the DAM503. Input polarities and difference functions are completely configurable. Changes are made by moving internal jumpers.
View full product sheet (PDF, 208kB)
The CMM500 Complex Math Module replaces the obsolete Foxboro H-Line 66A and 66D process control instruments. The design of the CMM500 allows it to replace the Foxboro instruments by offering multi-functional options through jumper-configurable selections and calibration adjustments on the main circuit board.
The CMM500 can be configured to perform multiplication, division, squaring, or square root functions. When used as a multiplier, the module accepts two inputs that can be independently inverted, each having an adjustable scalar ranging from 0.02 to 1.0 and an overall variable gain from 1 to 10.
Division is accomplished by accepting two signal inputs (divisor must be positive) that can be scaled from 0.02 to 1.0 with an overall gain adjustment ranging from 10 to 100. Squaring is achieved by applying a signal to both inputs of a multiplier module, and square root extraction is performed in the division circuitry down to 0.05 % of input span with an overall gain of 10.
View full product sheet (PDF, 202kB)
The OCA500 One Channel Analog Isolator replaces the obsolete Foxboro 66B Current Repeater, 66E Current Source, and 66G Voltage to Current Converter modules. The OCA500 isolates Class 1E circuits from non-Class 1E Circuits. This single-channel input, single-channel output, rack mounted, analog isolation device is simple to install, calibrate, and operate.
The OCA500 offers a variety of input and output ranges for different requirements, and has capabilities for current or voltage input and output signals
View full product sheet (PDF, 172kB)
The FCA502 Multi-Channel Rack Mounted Analog Isolator is a single-channel input, four-channel output device that isolates class 1E circuits from non-class 1E circuits. The FCA502 is simple to install, calibrate, and operate, and offers a variety of input and output ranges to meet different requirements, with capabilities for current or voltage input and output signals.
View full product sheet (PDF, 149kB)
The MTH500 Math Module replaces the obsolete Foxboro H-Line 66C process control instrument. The design of the MTH500 allows it to replace several H-Line 66C models by offering multi-functional options through jumper-configurable selections and calibration adjustments on the main circuit board. The MTH500 can function as a: Summer; Summer with Feedback; and Low Gain plus Bias Module. In the Summer configuration, it can accept up to four input signals plus an internally supplied constant value. Each channel is adjustable from a gain of 0.05 to 2 with an inversion option.
The Summer with Feedback configuration accepts two input signals plus a constant with a variable gain from 0.5 to 1.5 and inversion option. The Low Gain plus Bias accepts one input signal plus a constant with a variable gain of 0.05 to 2.2. The calibrated gain for each of these units is 0.1 to 1.1 and scalable at x1, x10, or x100. The output signal driver is a unity gain buffer with frequency compensation.
View full product sheet (PDF, 177kB)
The TMD500 Time Domain Module replaces the obsolete Foxboro H Line 66R lead/lag and special style process control instruments. The design of the TMD500 enables it to replace several H-Line 66R models by offering multi-functional options through jumper-configured selections and calibration adjustments on the main circuit board. The TMD500 is capable of providing the following functions as determined by each individual application: Lead; Lag; Filter; Lead/Lag; and Impulse or Dynamic Compensator.
View full product sheet (PDF, 178kB)
The HLS500 High/Low Signal Selector replaces the obsolete Foxboro 66 Special high and low signal selectors, and provides either high or low signal selection from two, three, or four inputs as determined by user-configurable jumpers on the main PC board. User-defined gain and bias, and filtering and high/low limiting, can be applied to a selected signal through a mode panel in the side cover.
View full product sheet (PDF, 500kB)
The AMS700 Auto-Manual and Ratio Auxiliary Stations replace the obsolete Foxboro 67H Automatic/Manual Controller systems with a wide selection of manual and automatic loading stations. The AMS700 output is typically a 10 to 50 mA dc signal, which is compatible with most standard instrumentation, including the NUSI 700 Series PIDA700 Proportional, Integral, & Derivative Controller.
All of the circuitry has been designed using high-reliability, solid-state devices to ensure top performance and long life. AMS700 modules can be mounted in combination with other panel instruments, such as controllers and recorders, to provide maximum operator interface.
View full product sheet (PDF, 148kB)
The RTL500 Resistance Temperature Dectector (RTD), Thermocouple, Low Level Amplifier replaces the Foxboro 693A millivolt-to-current converter and the Foxboro 694A resistance-to-current converter. The RTL500 uses an accurate resistance-to-current (or voltage) converter that linearizes conversions for both platinum and nickel RTDs.
The converter PC board is the main signal board and hosts the “RTL Personality Module” (RPM), which sets the functional mode of operation to a 3- or 4-wire RTD mode, thermocouple mode, or low-level amplifier mode. RPM modules, which can be purchased separately, allow customers to stock one spare RTL module and different interchangeable RPM modules to accommodate multiple operational modes and plant configuration applications. The easy-to-change RPM, combined with switch (or jumper) selectable precision gains and offsets, allow the RTL500 to be reconfigured for large or small temperature/resistance ranges.
View full product sheet (PDF, 140kB)
The SGU501 Function Generator and Static Gain Unit replaces various versions of the obsolete Foxboro static gain unit. The SGU501 can perform user-selectable gull wing functions in response to changes in input signals.
The SGU501 is a rack-mounted, solid-state instrument with linear integrated circuits. It can generate two types of curves; a normal gull wing, and an inverted gull wing. The curves generated by this function generator are optimized for negative and positive bias applications.
View full product sheet (PDF, 167kB)
The MTH700 Math Module replaces the obsolete Foxboro 62H and 66B summation-style process control instruments, by offering multi-functional options through jumper-configurable selections and calibration adjustments on the main circuit board. The MTH700 can function as a: Summer; Summer with Feedback; and Low Gain plus Bias module. In the Summer configuration, it can accept up to four input signals plus an internally-supplied constant value.
View full product sheet (PDF, 162kB)
The PIR500 Class 1E Powered Input Repeater replaces the obsolete Foxboro 610A and 66B modules. The PIR500 is a one-input module that provides one output, and power for one loop transmitter at the input, while also providing electrical isolation between the input and the output, and between the input and chassis ground.
The PIR500 contains an I/O conditioning board and an input loop power module, which supplies power to a single force balance transmitter. The input loop impedance is set by adjusting the loop balance potentiometer. The input loop current is sensed by a dropping resistor in the module. This current is converted to a voltage and applied as the input to the I/O conditioning board. The I/O board provides isolation and converts the signal to the desired output range.
View full product sheet (PDF, 170kB)
The SET700 Setpoint Station provides a replacement for Foxboro externally-referenced setpoint stations. This Station is a manual station that accepts an external reference voltage labeled “Manual Input”. With two precision pots, the SET700 produces two setpoint signals proportional to the Manual Input.
View full product sheet (PDF, 131kB)
The PID750 Process Controller replaces the original G. W. DAHL Model C602B Control Unit, and is a three-mode analog controller with two ac line voltage outputs intended to drive a reversible induction motor. This Controller uses velocity (integral-base) control rather then positional control. The full-time control eliminates setpoint overshoot after setpoint or load change, and control can be switched between automatic and manual using a 'bumpless' and 'balanceless' transfer switch.
View full product sheet (PDF, 137kB)
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Scientech's NUSI 500 & 700 Series Modules
