Model 960 Series

The Model 960 Series is highly modular to meet a wide variety of radiation instrument control needs. Each Model 960 Series consists of a wall, skid, or rack mounted enclosure containing combinations of the Model 960 Series modules as described in the following paragraphs.

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Product Details

Model 960 Series

Overview

Key Features

IEEE 323 (1983) qualified
IEEE 344 (1975) qualified
Modular design
Microprocessor based
Analog outputs for recorder, remote display, and computer
Fail safe DPDT relay contact outputs for warn, high, fail, and auxiliary functions

960 Series Digital Radiation Monitoring System

The 960 Series Digital Radiation Monitoring System (DRMD) is a versatile radiation instrument controller which has been widely used in nuclear power plants throughout the world. It can be used as a local control unit (LCU) on the plant floor in its NEMA 4 or NEMA 12 type housing, or rack mounted in the control room. It can also be interfaced with a supervisory computer for remote control and supervision. The 960 Series has been qualified to meet IEEE 323 (1983) environmental and IEEE 344 (1975) seismic standards. It can also be configured to meet Nuclear Regulatory Commission (NRC) Regulatory Guide 1.75 for physical separation and fiber optic electrical isolation. The 960 firmware has been validated and verified in conformance with IEEE standard 730 (1984).

Digital data acquisition and control system
Compatible with all detector/sampler assemblies
Meets requirements of NRC Re. Guide 1.75
Process control capability
Custom configuration

Applications

Controller Module 960CD

The 960CD Controller is a microprocessor based module that controls other modules used in the Model 960. The Controller Module converts acquired data to engineering units and checks them against various setpoint levels. It also stores, displays, and transmits data. The 960CD contains two universal communication ports to communicate with a supervisory processor over redundant, polled, optically isolated loops. The 960CD can operate the 960 subsystem independently, should the supervisory computer fail.

Scaler Module 960SF

Provides the necessary interface between GM, Scintillation, or Ion Chamber radiation detectors and the 960CD Controller. It accepts up to 4 analog inputs, and provides 1 analog output. Provides detector power supply requirements.

Signal Generator Module 960SG

Provides 5 fixed frequency outputs which can be patched into the scaler to aid in troubleshooting.

Process Control Module 960RE

Provides 6 solid state relay outputs for manual or automatic control of valves and pump motors, where applicable, and accepts inputs for monitoring external conditions.

Relay Module 961RE

Provides up to 6 DPDT relay contact outputs to control external devices. Connects to 960SF Module or 960RE Module.

Triple Window Analyzer Module 960AN

Receives pulses from a 960SF and is capable of separating the pulses by pulse height discrimination into three different channels. By setting the proper channel window, data may be acquired and analyzed using a 960AN to determine the presence of specific nuclides, such as ¹³¹I.

Data Entry Module 960KE

In conjunction with a touch sensitive keypad, serves as a manual data entry unit for the 960CD Controller. The Model 960KE has provisions for entering a variety of data such as radiation alarm setpoints, background CPM value, calibration factor (k) for radiation detector, and count time.

Isolator Module 960IS

Provides isolated communication with nonclass 1E portion of the system.

Motherboard Module 960MB

Provides power and signal distribution for the other 960 modules.

American Regulator Module 960AM

Provides automatic gain stabilization for use with the 960AN analyzer module.

Dual Display Module 960DD

Provides 2 additional readout display drivers, 2 analog output circuits, 3 solid state relay driver outputs, 14 drivers for front panel indicators, and 7 switch inputs from the 960 front panel.

Models

Model Name	Part Number	Description
960CD		Controller Module, for use as part of the 960 Series Digital Radiation Monitoring System
960SF		Scaler Module, for use as part of the 960 Series Digital Radiation Monitoring System
960SG		Signal Generator Module, for use as part of the 960 Series Digital Radiation Monitoring System
960RE		Process Control Module, for use as part of the 960 Series Digital Radiation Monitoring System
961RE		Relay Module, for use as part of the 960 Series Digital Radiation Monitoring System
960AN		Triple Window Analyzer Module, for use as part of the 960 Series Digital Radiation Monitoring System
960KE		Data Entry Module, for use as part of the 960 Series Digital Radiation Monitoring System
960IS		Isolator Module, for use as part of the 960 Series Digital Radiation Monitoring System
960MB		Motherboard Module, for use as part of the 960 Series Digital Radiation Monitoring System
960AM		American Regulator Module, for use as part of the 960 Series Digital Radiation Monitoring System
960DD		American Regulator Module, for use as part of the 960 Series Digital Radiation Monitoring System

Vertical Tabs

960CD

960SF

960SG

960RE

961RE

960AN

960KE

960IS

960MB

960AM

960DD

Model 960 Series

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Product Details

960 Series Digital Radiation Monitoring System

Applications

Controller Module 960CD

Scaler Module 960SF

Signal Generator Module 960SG

Process Control Module 960RE

Relay Module 961RE

Triple Window Analyzer Module 960AN

Data Entry Module 960KE

Isolator Module 960IS

Motherboard Module 960MB

American Regulator Module 960AM

Dual Display Module 960DD

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