Summary of Contents for MSA General Monitors S4100T
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S4100T ODEL Hydrogen Sulphide Smart Transmitter Hydrocarbon Sulphide Smart Transmitter Hydrocarbon Sulphide Smart Transmitter Hydrocarbon Sulphide Smart Transmitter Hydrocarbon Sulphide Smart Transmitter Hydrocarbon Sulphide Smart Transmitter The information and technical data disclosed in this document may be used and disseminated only for the purposes and to the extent specifically authorized in Hydrocarbon Sulphide writing by General Monitors.
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Model S4100T Warranty Statement General Monitors warrants the Model S4100T to be free from defects in workmanship or material under normal use and service within two (2) years from the date of shipment. General Monitors will repair or replace without charge any equipment found to be defective during the warranty period.
Model S4100T Introduction General Description The General Monitors Model S4100T Smart Transmitter is a highly reliable, self contained, microprocessor controlled, single point calibration Hydrogen Sulphide monitor with integral 3-digit readout. The Transmitter is connected to the user’s indicating and shut-down equipment by means of a screened and armoured cable. The S4100T is designed to measure and display concentrations of Hydrogen Sulphide in one of three ranges: 0 to 20ppm, 0 to 50ppm and 0 to 100ppm, but will continue to display concentrations up to 120% of FSD.
Model S4100T Specifications Approvals EN 60079-0, EN 60079-7, EN 60079-18 Hazardous Area Standards Code of Protection Ex emd IIC T5 Gb (-40C + 55C) Ex emd IIC T4 Gb (-40C + 70C) Cable insulation rated to at least 110C Application: Hydrogen Sulphide Gas Monitor Functional 0-20 ppm, 0-50 ppm and 0-100 ppm, user selectable option setup...
Model S4100T Mechanical 150mm (6”) Height Height incl. Sensor: 200mm (8”) Width: 150mm (6”) Depth: 95mm (3.75”) Weight including Sensor: 2.5kg (5.5lbs) Mounting Holes: 4 x 7 mm (0.28”) dia holes Termination: Ex e rated Terminal Block Environmental - 40C to + 70C Operating temperature range (continuous) min/max Storage temperature range min/max - 50C to + 85C...
Model S4100T Installation WARNING - Installation and Maintenance must be carried out by suitably skilled and competent personnel only. On Receipt of your Equipment All instruments shipped by General Monitors are pre-packed in stout containers and enclosed in a shock absorbing filling which affords a considerable degree of protection against physical damage.
Model S4100T • Observe the ambient temperature limitations quoted in the specification. If a sampling preconditioning system is employed, take steps to ensure that vapours will not condense in the associated pipework. • The mounting should be as free from shock and vibration as possible. Avoid mounting Smart Transmitters directly on structures or process equipment prone to high levels of vibration or shock.
Model S4100T Installation of Sensor General Monitors sensors are machined to a ¾ NPT thread for fixing into the junction box, through a suitably machined entry. Each sensor requires a suitable O’Ring and Lock Nut to ensure correct assembly. To assemble the sensor into the junction box the wires should be placed through the O’Ring, over the ¾...
Model S4100T 3.6.2 Cable Termination in Safe Area • The cable armour must be connected to Safety Earth. • The cable screens (drain wire) and power supply return (OV) must be connected to Instrument Earth. • The power supply or power distribution system employed should meet the requirements of EN5008 I- 1/2 and EN60101-1.
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Model S4100T The electrical rating for all open collector outputs is 100mA @ 35VDC. The diagram below illustrates some typical open collector external circuits.
Model S4100T Interconnection Details Signal 12-Way Module Name Terminal Function If not used Fly lead colour + 24VDC Power Supply brown Analogue output connect to OV yellow Power Supply Return blue Remote calibration input (Note) leave unconnected* grey Alarm 2 open collector output leave unconnected* orange Alarm 1 open collector output...
Model S4100T Stopping Plug Installation NOTE: The stopping plug, 311001-1, is fitted at the factory, the following instruction will only be necessary if the stopping plug has been removed from its current location to another entry of this product. Screw Earth/Stopping Plug (P/N 311001-1) into Top Entry of S4100x Housing.
Model S4100T Operating Instructions WARNING – Installation and Maintenance must be carried out by suitably skilled and competent personnel only. Menu Operation and Display Codes Note: See Table 1 and Table 2 for Display Codes Menu operation starts at Level 1. To enter the menu, the magnet is applied to the General Monitors Logo on the Nameplate and held in place.
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Model S4100T Menu Selection Availability: Latched ppm<min Level 1 menu selections Menu entry delay Faults? Alarms? Alarms? Trip level? available ACA, CCA, ASU, CSU & ncl 5 sec ACA, ASU, CSU & ncl 5 sec ACA & CCA 90 sec ACA &...
Model S4100T Calibration Calibration may be carried out as follows: • Ensure that the instrument has stabilised for at least 24 hours and that there is no Hydrogen Sulphide gas present at the sensor. If background levels of gas are suspected, the sensor should be purged with clean air before calibrating the unit.
Model S4100T New Sensor Calibration New sensor calibration may be carried out as follows: • Ensure that the instrument has stabilised for at least 24 hours and that there is no Hydrogen Sulphide gas present at the sensor. If background levels of gas are suspected, the sensor should be purged with clean air before calibrating the unit.
Model S4100T Calibration Check • Place the magnet on the General Monitors Logo on the Nameplate. The instrument will display “ - - -“ for 5 seconds and then enter the menu routine. Remove the magnet. Select “CCA” by briefly reapplying the magnet when the display scrolls around.
Model S4100T Special Power up Routine If the instrument is powered up with the magnet present it will display “EEPROM write activity” for 1 second, followed by “Power up in progress” as above. The magnet present will cause the Modbus Parameters to be reset to factory default. The magnet may be removed immediately.
Model S4100T Maintenance WARNING - Installation and Maintenance must be carried out by suitably skilled and competent personnel only. Maintenance Once correctly installed, systems require very little maintenance other than Routine Re- calibration (see section 4) and periodic inspection. Sensors exposed to the elements may require a little grease on the accessory mounting threads.
Model S4100T Trouble Shooting Fault codes and Remedies Faults are stacked according to priority, i.e.: if more than one Fault exists at a particular time, the display will show the Fault with the highest priority (lowest number in priority column). As the Faults are being cleared, the Fault with the next highest priority will be displayed, until all Faults have been cleared.
Model S4100T Alarms Alarms are stacked below Faults according to priority i.e.: if a Fault and (latched) Alarm(s) exist at a particular time, the display will show the Fault. As the Fault is cleared, the Alarm with the next highest priority will be displayed. Latched Alarms may be cleared by briefly applying the magnet to the General Monitors Logo on the Nameplate if the Alarm condition no longer exists.
Model S4100T Ancillary Equipment Dust Guard Assembly (P/N 10110) The dust guard is a simple, threaded (1 3/16-18 UNEF 2B) stainless steel cylinder with a wire screen at one end. It is easily unscrewed for cleaning and/or replacement of the disposable screen. The screen material is stainless steel with a nominal 40 micron mesh.
Model S4100T Duct Mounting Plate (P/N 10041 Dash-1 or –2) The Duct Mounting Plate is a rectangular plate measuring 73 x 116mm (2.88” x 4.56”) containing four captive mounting screws (6-32 UNC), and fitted with a Neoprene O-ring seal. The sensor is mounted in a 1 3/16-18 UNEF threaded hole in the centre of the plate.
Model S4100T Ampoules of Hydrogen Sulphide (P/N 50004) These glass ampoules are manufactured under strict control procedures for use with the Field Calibrator (P/N 50000). They are marked with a gas concentration in ppm H which corresponds to the concentration when released within the Field Calibrator. Ampoules may start to lose concentration after a specified period.
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Model S4100T These part numbers for the associated equipment are given below: Description Part No. Case (holds two cylinders) 914-135 Regulator (200 ml/min flow rate) 922-016 Teflon Tubing 925-430 Cup with Screen 1400152 Cable Tie 060-331 Operating Instructions Securely fasten the regulator to the gas cylinder and ensure that the tubing and cup are undamaged and securely attached to the regulator outlet.
Model S4100T Modbus RTU Serial Interface General The Modbus communications interface is based on the RS485 standard. It is implemented as a 2 wire, half-duplex, balanced differential interface which conforms to the EIA-485 specification. Each slave device must have its unique address so that more than one device can be connected to an independently addressed on the same RS485- link.
Model S4100T Modbus Read/Write - Commands Function Code Description Access Type Read coil status Read Read input status Read Read holding registers Read Read input registers Read Force single coil Write Preset single register Write Force multiple coils Write Preset multiple registers Write Any of commands with Function Code 1, 2, 3, 4 allow data to be read from the instrument.
Model S4100T Modbus Register Configuration Registers 1, 2, 4, 5, 6 and 8 contain the value of the single parameter specified, the remaining registers contain composite parameters. Attempts to write a data value out of range for these parameters will result in the Illegal Data Value response (Exception Code 3).
Model S4100T Appendix A Cables to be screened and armoured to BS5308 Part 2 or equivalent. References to Sq. mm and AWG are not to be taken as direct equivalents. Maximum Sensor Cable Length Maximum Sensor Cable length for various conductor sizes: Conductor Size Maximum Cable Length Sq.
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Model S4100T Conductor Size Maximum Cable Length Power Supply Rating Cable Drop sq mm metres feet mA max avg total 0.75 (960) 1475 (2620) 30.0 (265) 15.0 (1285) 2285 (4065) 685pk (385pk) 1080 (1920) 2930 (5210) 1450 (2575) 4630 (8235) 1800 (3200) 7120...
Model S4100T Customer Satisfaction Questionnaire Attention Field Operations: We would appreciate your help in assessing and thus improving the quality of our Equipment and Service and would therefore be grateful if you would complete the Questionnaire below and return it to: General Monitors Ireland Ltd, Ballybrit Business Park, Galway,...
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