INDUSTRIAL MONITORING INSTRUMENTATION DIVISION
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Introduction
Models 691C41 and 691C42 are rotary switch boxes that provide terminal strip inputs for sensor cable termination
with the convenience of BNC & military connectors for switched outputs and terminal strips for continuous
outputs. They are typically used in conjunction with third-party data collectors and analyzers. The boxes provide
simultaneous vibration and temperature inputs on every channel so that they can be used in conjunction to
temperature output (TO) sensors (accelerometers with a built-in temperature sensor that provide simultaneous
vibration and temperature signals). Specifications and drawings are below for reference:
Model Number
691C41
691C42
Channel Count
6
12
Input Connector
4-socket screw terminal strip per channel
Continuous Output Connector
4-socket screw terminal strip per channel
Switched Output Connector Number
3
Switched Output Connector #1 Type
2-pin MIL connector
OR
3-pin MIL connector (T suffix)
Switched Output Connection #1 Output
Vibration (2-pin)
OR
Vibration & Temp (T suffix)
Switched Output Connector #2 Type
BNC Jack
Switched Output Connector #2 Output
Vibration
Switched Output Connector #3 Type
BNC Jack
Switched Output Connector #3 Output
Temperature
Enclosure Rating
NEMA 4X (IP66)
Housing Material
Fiberglass
Painted Steel (PS prefix)
Stainless steel (SS prefix)
Size (excluding latch & mounting access)
10”H x 8”W x 6”D
Model 691C41
Model 691C42