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The warranties made by MSA with respect to the product are voided if the product is not installed and used in accordance with the instructions in this manual. Please protect yourself and your employees by following the instructions.
• Integral alphanumeric LED display • Optional integral alarm relays • Analog 4-20 mA input/output ® • Modbus RTU interface NOTE: Modbus is a registered trademark of Schneider Electric • SMC Sentry interface • 316 Stainless steel enclosure option SMC 5100-99-IT Transmitter...
Low Alarm relays and SPDT, 250VAC, 0.25 Amp for the Trouble relay. If the gas sensor module is provided with the optional relays, it will include Terminal P4 on the interface board (Section Module Address Switch). Relay output connections are on P4. SMC 5100-99-IT Transmitter...
316 Stainless Steel enclosure. Both enclosure covers have a viewing window. The design of the enclosure allows 3-way mounting choices as shown below. NOTE: Module installation must be such that it is mounted vertically with sensor pointing downward. Model 5100-99-IT-S1/S2 Toxic Gas Sensor – Stainless Steel Enclosure, Dimensions SMC 5100-99-IT Transmitter...
Power Requirements The modules operate on 24 VDC power between 10 VDC and 30 VDC. Filtered, regulated DC power must be supplied from a separate source or from an approved Sentry or IT controller. SMC 5100-99-IT Transmitter...
• Relays are not to be used for safety critical functions. NOTE: Installation and wiring must be in accordance with the National Electrical Code. Voltage AC conductors are not to be run in the same conduit as voltage DC conductors. SMC 5100-99-IT Transmitter...
TX A and TX B lines. The IT series of toxic gas sensors automatically apply the bias jumpers, and are factory installed so that the bias is always enabled. SMC 5100-99-IT Transmitter...
3. For hazardous locations an Explosion poof seal fitting must be installed within 18" of the transmitter. NOTE: When enclosure earth grounding is required for the installation a grounding lug is located in the base of the enclosure. Install the earth ground under the green ground screw. SMC 5100-99-IT Transmitter...
* P4 Connections are installed only when the optional Relays are included ** Trouble relay is a fail-safe so it is energized for normal operation, functions are labeled for normal operation. NOTE: The starting delay is normally approx. 3 minutes but in some circumstances may take longer. SMC 5100-99-IT Transmitter...
NOTE: Use selector switch to pick Sentry PSG addresses 1 through 8 only. If using Modbus output sensor addresses 1-15 are available. Position 0 allows the Modbus Address to be set by software menu, in the range 16-254. SMC 5100-99-IT Transmitter...
Each switch functions as if it is a manually activated panel key. The keys are located under the faceplate above and below the LED display and are labeled M , E , ▲ and ▼ as shown below. SMC 5100-99-IT Transmitter...
Description STARTING Delay from loss of power at start-up XXX PPM Concentration LXXX PPM Low Alarm (Warning) HXXX PPM High Alarm (Alarm) HIGH Measures gas, concentration exceeds 100% of Full Scale CXXX PPM Calibration Mode Acknowledged Function SMC 5100-99-IT Transmitter...
Down 4-20mA S.P. Function - 4-20 mA Adjust * D Below Down RS-485 S.P. Function - RS-485/Sentry Output Adjust * E Below Select between supervised (Sprvsd) or unsupervised (UnSprvd) mode for Down Dig Input the Digital Input. SMC 5100-99-IT Transmitter...
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S.P. Function - User Selectable mA Value Enter *T1.50mA Use ▲ or ▼ keys to select mA Value between 0.5 and 3.7mA Enter *T1.50mA Select 1.5 mA value during trouble RS-485 Adjustment Example Enter Address S.P. Function - RS-485 Address Adjust SMC 5100-99-IT Transmitter...
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S.P. Function - RS-485 Address Adjust Down Baud S.P. Function - RS-485 Baud Rate Adjust Enter *38400 Press [E] to select or ▲ or ▼ to select another NOTE: The Key is the same as the function. Mode=M, Enter=E, Up=▲, and Down=▼. SMC 5100-99-IT Transmitter...
4 Operation Maintenance Sub-Menu The maintenance menu enables the operator to view sensor and software versions. MSA Safety technical support has access to other values as needed. The maintenance menu operation is described in the table below. Function Display Description...
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5) Extender Type (Interface Card Type) 6) 5V supply voltage status *** ClearMem will restore the transmitter to its factory configuration. The user will have to reconfigure it as 5100-99-IT by following the SetUp / 4-20 mA / Mode procedure (Section Set-Up). SMC 5100-99-IT Transmitter...
• Model 5311-02 rain shield is recommended for installation in wet areas. 5.4.3 Standard Voltages • Regulated DC voltage to be applied to the sensor module must be between 10 VDC and 30 VDC. SMC 5100-99-IT Transmitter...
(SS) 7.6 x 4.4 x 4.9 in. (19.3 x 11.2 x 12.4 cm) (AL) 3.4 lb. (1.5 Kg) Weight (SS) 7.2 lb. (3.3 Kg) Warranty Limited Warranty 2 years Specifications subject to change without notice NOTE: Relays are not to be used for safety related functions. SMC 5100-99-IT Transmitter...
Model Numbers & Spare Parts Model Numbers 5100-99-IT-AL-01 4-20mA Transmitter, AL 5100-99-IT-AL-02 4-20mA Transmitter, Relay, AL 5100-99-IT-SS-01 4-20mA Transmitter, SS 5100-99-IT-SS-02 4-20mA Transmitter, Relay, SS Spare Parts SPL21945 Transmitter SPL21825 Interface Board without Relay SPL21829 Interface Board with Relay SMC 5100-99-IT Transmitter...
Limited Warranty MSA Safety warrants its products to be free from defects in workmanship or material under normal use and service for two years after date of shipment. MSA Safety will repair or replace without charge any equipment found to be defective during the warranty period.