YOKOGAWA SR10000 series, User Manual

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1-1
IM 04P03B01-01E
Functional Explanation and Setup Guide
For the procedure to set the functions, see section 1.6, “Function Setup Guide.”
1
1.1 Measuring Input Section
Input Section
Number of Measurement Channels and Scan Interval
The recorder samples the input signals on the measurement channels at the scan
interval to obtain the measured values.
Model Number of Channels Scan Interval
1-pen model 1 125 ms
2-pen model 2 125 ms
3-pen model 3 125 ms
4-pen model 4 125 ms
Dot model 6 1 s
(However, the scan interval is 2.5 s when the
integration time of the A/D converter is 100 ms.)
Input Type, Measurable Range, and Computation
The recorder can measure the following types of inputs.
Input Type Measurable Range
DC voltage DC voltage in the range of ± 20 mV to ± 50 V
1-5V See “1-5V” below.
Thermocouple Temperature range corresponding to each type: R, S, B, K, E, J, T, N, W, L, U,
and WRe
RTD Temperature range corresponding to each type: Pt100 Ω and JPt100 Ω
ON/OFF input Contact input: Open contact is OFF (0). Closed contact is ON (1).
Voltage input: Less than 2.4 V is OFF (0). Greater than or equal to 2.4 V is ON (1).
Within
± 6 V.
• 1-5V
1-5V is scaled to values in the appropriate unit to be used as measured values. Also,
the low-cut function (input less than 0% is fixed to 0% (scale left value)) can be used.
• Current Input
A shunt resistor is attached to the input terminal. The current signal is converted to a
voltage signal and measured. The measurable range is the range equivalent to the
“DC voltage” range indicated above after converting the current to the voltage signal.
Note
Three types of shunt resistors (250
Ω
, 100
Ω
, and 10
Ω
) are available for current input (See
“Optional Accessories (Sold Separately)” in the
Operation Guide
). For example, a 250-
Ω
shunt resistor is used to convert the signal to the range of 1 to 5 V for 4 to 20 mA input.
• Range Type, Measurable Range, and Recording Span
Various “range type” are available for the different types of inputs (for example
thermocouple type R). Each range type has a preset measurable range (0.0 to
1760.0
°
C for thermocouple type R). Measurement can be made by specifying an
arbitrary range within the measurable range as the
input range
. The measured values
in the input range are recorded on the chart paper. The range of measured values
that are recorded is called the
recording span
.
0.0 ° C
300.0 ° C (leftmost value of span)
1760.0 ° C
1500.0
°
C (rightmost value of span)
Input range or recording span
Measurable range (Thermocouple Type R example)
<Related Topics> Setting the input range: Section 5.1
Chapter 1 Functional Explanation and Setup Guide