S4100T H2S Gas Detector0 pages

HS
2

GENERAL MONITORS
Protection for life.

Model S4100T
H2S Addressable Transmitter
Features

Benefits

• RS-485 Dual MODBUS
Serial Interface in
addition to 4-20mA

• Provides measurement, set-up
and status of up to 247 nodes

•18.5-35VDC Operation

• Allows longer cable runs and
lower cost installation

• User changeable H2S
range

• Convenient, flexible operation

• 3 Digit Display

• Displays over-scale readings
and alarm status

• Single-point calibration

• Easy, fast and simple one-man calibration

• Fully adjustable and
configurable opencollector outputs

• Lower wiring cost and flexible
operation

Description

Applications

The General Monitors Model S4100T Hydrogen Sulphide
Addressable Transmitter is a highly reliable, self contained, microprocessor-controlled single point monitor with integral 3 digit readout.
It is designed to measure and display concentrations of H2S in three
ranges: 0-20ppm, 0-50ppm or 0-100ppm, but will continue to
display concentrations up to 120% FSD. The sensing element may
be incorporated in the transmitter housing or remotely mounted at
distances in excess of 600m.

• Refineries

The S4100T will record the number of successful calibrations
and compute the sensor resistance in Kohms during calibration and
store sensor condition data in a non-volatile memory, together with
calibration and set-up parameters.

• Desulphurisation Facilities

The S4100T’s user interface is menu driven. In addition the
instrument may be addressed via the Dual MODBUS RTU interface
which is based on the RS-485 standard. The MODBUS output
provides status, alarm, fault and other information for operation,
trouble-shooting or configuration of the unit.
A1 and A2 Alarm Trip levels are user selectable in 1ppm increments
from 1-19ppm for 0-20ppm, 5-45ppm for 0-50ppm or 10-95ppm for 0100ppm measuring range. Calibration level is 50% of selected measuring range.

• Drilling Platforms and Rigs
• Gas and Oil Production Platforms
• Mud Logging Operations

• Heavy Water Nuclear Facilities
• Wastewater Treatment Plants
• Chemical Plants
• Well Head Sites
• Oil Recovery/Reinjection Sites