YOKOGAWA IR400 series, User Manual

Page: 100 / 121

<9.SPECIFICATIONS>
9-3
IM 11G02N01-01E
Safety and EMC conforming standards:
Installation altitude: 2000 m or less
Pollution degree: 2 (Note)
Installation category: II (Note)
Note: Installation category, called over-voltage category, specifies impulse withstanding voltage.
Category II is for electrical equipment. Pollution degree indicates the degree of existence of solid, liquid, gas or other
inclusions which may reduce dielectric strength. Degree 2 is the normal indoor environment
Safety: EN61010-1
EMC: EN61326-1 Class A, Table 2,
EN61326-2-3, EN61000-3-2, EN61000-3-3
EMC Regulatory Arrangement in Australia and New Zealand (RCM)
EN61326-1 Class A
Note: The product mounted in a steel enclosure conforms to the requirements of EMC directive.
CAUTION
This instrument is a Class A product, and it is designed for use in the industrial environment.
Pleaseuse this instrument in the industrial environment only.
2. Standard Functions
Output signal holding: Output signals are held during manual and auto calibrations by
activation of holding (turning “ON” its setting).
The values to be held are the ones just before start calibration mode
or setting value. It is selectable. Indication of instantaneous values
will not be held.
Remote output holding: Output signal is held at the latest value or setting value by short-
circuiting the remote output holding input terminals. Holding is
maintained while the terminals are short-circuited. Indication of
instantaneous values will not be held.
Switch ranges: The switch ranges is available in manual, auto, and remote modes.
Only preset switch method is effective.
Manual: Allows range to switch by key operation.
Auto: Allows range to switch from low to high range when 90%FS or more
is available in the low range.
Allows range to switch from high to low range when 80%FS or less
is available in the low range.
Remote: No-voltage contact input (for measurable components)
Allows range to switch via an external signal when remote range
switch input is received.
When the contact input terminals for each component are short-
circuited, the first range is selected, and it is switched to the second
range when the terminals are open.
Range identification signal: The present measuring range is identified by a contact signal.
The contact output terminals for each component are short-circuited
when the first range is selected, and when the second range is
selected, the terminals are open.
Auto calibration: Auto calibration is carried out periodically at the preset cycle.
When a standard gas cylinder for calibration and a solenoid valve
for opening/closing the gas flow line are prepared externally by the
customer, calibration will be carried out with the solenoid valve
drive contacts for zero calibration and each span calibration turned
on/off sequentially at the set auto calibration timing.