Features and Benets
RS-485 Dual ModBus Serial Interface in addition to 4-20 mA provides measurement,
set-up and status of up to 247 nodes
18.5-35 VDC operation allows longer cable runs and lower cost installation
User changeable H
2
S range enables convenient, flexible operation
3 digit display shows over-scale readings and alarm status
Single-point calibration provides easy, fast and simple one-man calibration
Fully adjustable and congurable open collector outputs result in lower wiring cost
and exible operation
ULTIMA® MOS-5E
Gas Transmitter
Description
The ULTIMA MOS-5E Hydrogen Sulphide Address -
able Transmitter is a highly reliable, self contained,
micro processor-controlled single point monitor
with in te gral 3 digit readout. It is designed to
measure and display concentrations of H
2
S in three
ranges: 0-20 ppm, 0-50 ppm or 0-100 ppm, but
will continue to display concentrations up to
120 % FSD. The sensing element may be incor -
porated in the transmitter housing or remotely
mounted at distances in excess of 600 m.
The ULTIMA MOS-5E 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.
The ULTIMA MOS-5E 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 conguration of
the unit.
A1 and A2 Alarm Trip levels are user selectable in
1 ppm increments from 1-19 ppm for 0-20 ppm,
5-45 ppm for 0-50 ppm or 10-95 ppm for 0-100
ppm measuring range. Calibration level is 50 % of
selected measuring range.
Applications
• Reneries
• Drilling Platforms and Rigs
• Gas and Oil Production Platforms
• Mud Logging Operations
• Desulphurisation Facilities
• Heavy Water Nuclear Facilities
• Wastewater Treatment Plants
• Chemical Plants
• Well Head Sites
• Oil Recovery/Reinjection Sites
Hydrogen Sulphide Addressable Transmitter
(31 páginas)
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