MSA Senscient ELDS 1000 series, Руководство по эксплуатации

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System Description
14
Senscient ELDS™
Rev 15
GB
Between four and eight connections to the Receiver are required, depending upon the number and
configuration of the 4-20mA outputs used. These connections are required to p24V, 0V,
4-20mA(1), 4-20mA(2) and GND (for electrical safety).
The ELDS system does not have any gas alarm set functions. The 4-20mA signal outputs from the
Receiver are non-latching. If the ELDS system is intended to indicate a potentially flammable gas
concentration then any auxiliary equipment (e.g. control room plc, control unit or monitoring
apparatus etc.) shall have an alarm set point that is latching, requiring a deliberate action to reset.
If two or more set or alarm functions are provided the lower may be non-latching.
2.4. Adjustable Mounting Bracket
The adjustable mounting brackets for the ELDS 1000 / 2000 Series are:

Purpose-built for the Transmitter and Receiver.

Provide coarse and fine adjustment for quick, simple system alignment.

Rigid, stable and robust.

Made from 316L stainless steel.
The coarse horizontal adjustment facility enables a Transmitter or Receiver to be quickly pointed in
the approximate direction of its counterpart and provides a full 360º of rotation. The fine horizontal
adjustment facility enables a Transmitter or Receiver to be precisely aligned and locked-off with
respect to its counterpart, and has an adjustment range of ±25º.
The fine vertical adjustment facility enables a Transmitter or Receiver to be precisely aligned and
locked-off with respect to its counterpart and has an adjustment range of ±15º.
Alignment details are given in section 4.
Clamp nut
Mounting bracket
adjusting screw (2 off)
Adjustment clamp
lock screw
Pivot block adjusting
screw (2 off)
Clamp nut
Mounting Lug (on unit body)