Omega RD100B manual Input Computation Standard Function, Input Specifications, 12-2

12.1 Input Specifications

Item	Specifications
Input type	Floating unbalanced input.
	Isolation between channels (except, b terminal is shared for RTD input).
Burnout Detection of TC	Can be set for each channel.
	Upscale/Downscale switchable.

	Input Type	Operating Conditions
	TC input	2 kΩ or less: normal, 10 MΩ or more: burnout, detection current: approx. 10 ∝A
	1-5V input	0.2 V or less: burnout
RJC of TC input	Set whether to use the recorder RJC function or an external RJC function for each channel.
	Set the compensation voltage when using an external RJC function.
	Compensation voltage range: –20000 ∝V to 20000 ∝V.
A/D converter
Resolution	16 bits
Integration time	Pen model: Selectable from 20 ms (50 Hz), 16.7 ms (60 Hz), and Auto (auto switch between 20 ms
		and 16.7 ms according to the power supply frequency).
	Dot model: Selectable from 20 ms (50 Hz), 16.7 ms (60 Hz), 100 ms and Auto (auto switch
		between 20 ms and 16.7 ms according to the power supply frequency).
Filter function (pen model)	Filter ON/OFF switchable for each channel.
	Time constant selectable from 2, 5, and 10 s.
Moving average function	Moving average ON/OFF switchable for each channel.
(dot model)	The number of samples of the moving average is selectable between 2 and 16.

Input Computation (Standard Function)

Item	Specifications
Delta computation	Calculates the difference between two channel inputs using the following equation.
	Delta = (the input value of the channel set to delta computation) – (the input value of the
	reference channel)
	where (reference channel NO.) < (channel No. set to delta computation).
	Computable input type: DC voltage, TC, and RTD. The channel set to delta computation and the
	reference channel is set to the same range type.
Linear scaling	Scales the input value to a value with a unit suitable for the application.
	Computable input type: DC voltage, TC, RTD, DI
	Value after scaling
	Mantissa: –20000 to 30000
	Decimal position: Can be set arbitrarily
	Unit: Can be set arbitrarily (up to 6 characters)
	Displayable and printable range
	–19999 to 31500
Computation on the 1-5V input
Linear scaling	Linearly scales the 1-5V signal.
	Value after scaling: Same as linear scaling.
	Displayable and printable range: Same as linear scaling.
Low-cut function	Sets values below 0% of the recording span to the leftmost value of the scale. The leftmost value of
	scale must be less than the rightmost value of scale.
Square root computation	Takes the square root of the input value and linearly scales the result.
	Computable input type: DC voltage
Linear scaling	Value after scaling: Same as linear scaling.
	Displayable and printable range: Same as linear scaling.
Low-cut function	Sets values below the low-cut point to the leftmost value of scale. The leftmost value of scale must
	be less than the rightmost value of scale.
	Low-cut point range: 0.0 to 5.0% of the recording span (0.1% steps)
Bias	Adds a bias to the measuring input value.
	Bias value range: ±10% of the span of the measurable range at the specified range type.
	±10% of the scaling span if linear scaling is used.

12-2