When the module is operated in conjunction with a Sentry controller, the alarm relay setup (See section 5.3) should be set to “Sentry”, allowing the Sentry controller to manage alarm relay action rather than the 5100-XX-IT Gas Sensor Module. 1.4.2 MODBUS OPERATION An RS-485 Modbus RTU serial interface allows direct connection to standard PLCs and DCSs. The Module Address Switch (section 4.5) allows the user to select up to 15 different Modbus addresses. Also, an additional 254 Modbus addresses a

4.2.7 IF THE MODULE DOES NOT DISPLAY THE CORRECT %PPM 1. Power cycle the unit. 2. Recalibrate the sensor. 4.2.8 IF THE DISPLAY SHOWS ‘F’ – SENSOR MISSING OR BAD SENSOR 1. Power down the unit. 2. Open the enclosure and unplug the sensor assembly from the transmitter board. 3. Plug the sensor back into the transmitter board carefully and ensure a secure fit. 4. Check all other connections. 5. Power up the unit. 4.2.9 IF THE MODULE SHOWS “***CALIBRATION REQUIRED***” 1. Calibrate the module. 4.2.10

Normal 20.9% value provides 17.3 mA. Page: 25 Model 5100-XX-IT Toxic Gas Sensor Module 7. SERVICE 7.1 SENSOR MODULE CONFIGURATION The gas sensor module is comprised of the following sub-assemblies (Figure 7-1): 5100-XX-IT Gas Sensor Module (See Appendix B) SPL21810 Aluminum Enclosure SPL21823 316SS Enclosure SPL21824 Transmitter Assembly XXXXXXX Sensor Assembly (See Appendix B) 5200-XX-IT Sensor (See Appendix B) 7.2 ENCLOSURE REPLACEMENT The enclosure should be replaced if the cover threads or c

Larger gauge wire is recommended with distances over 1000’. Connect wires as shown in figure 4-4. For a 4-Wire isolated connection, set jumpers, located on the bottom of the transmitter board, to the upper position as illustrated in Figure x.x. Verify that both jumpers are in the position marked by 4-wire. When using a 4-wire connection, a minimum of 2 each of an 18 AWG, 2 conductor twisted/shielded pair cable must be used. A cable shield must never be used as a conductor. Larger gauge wire is r

B Model 4501-XX Toxic Gas Sensor Module FM PERFORMANCE APPROVAL ONLY THE FOLLOWING ITEMS, FUNCTIONS AND OPTIONS ARE FM* APPROVED Model 4501-05 Hydrogen Sulfide Gas Sensor Module Sensor Module Model 4501-05 Sensor Module - Hydrogen Sulfide Calibration Equipment Model 1250-01 Gas Sensor Calibration Kit, Type A Model 1260-05 Hydrogen Sulfide in N2, 25 ppm Gas Cylinder Model 1260-45 Hydrogen Sulfide in N2, 10 ppm Gas Cylinder Model 5358-01 Calibration Adapter Notes: 1) Apparatus must be installed in

Wiring connections for power and signal interface are located on the back side of the display. 1.4.3 SENSOR ASSEMBLY The sensor assembly includes a stainless steel, explosion proof, housing containing the gas sensor and a wiring harness for connection to the transmitter. The sensor assembly threads into one hub of the enclosure. The exposed end of the sensor assembly is threaded to allow connection of a rain-shield or calibration gas delivery fitting. 1.5 INTERCONNECT WIRING Not supplied with th

To calibrate the 4 mA and 20 mA outputs it is necessary to have an amp meter connected to the 4501-XX and upon selecting the 4 mA output calibration then the [^] or [Ў] keys can be used to adjust the 4 mA reading on the amp meter until it reads 4 mA. Similar steps can then be performed for the 20 mA output. Page 11 of 33 Model 4501-XX Toxic Gas Sensor Module Key Function Display Description Reference H2S XX PPM Default Display (example 4501-05) ME Mode H2S CALIB: .• ME Down H2S SETUP: .• Gas Ran

(1.0Kg) Al 4.6 lb. (2.1 Kg) SS 316 Stainless Steel, Aluminum NEMA 4X, NEMA 7 FM Standards 3600, 3615, 3810 Class 1 Div I, Groups B, C, D Class II, Div I, Groups E, F, G NEMA 4X1 Class I, Div I, Groups B, C, D Class II, Div I, Groups E, F, G NEMA 4X UL Standard 508A Approval Standards: ISA-92.0.01, Part I-1998 and FM 3600 2 years Page 20 of 33 Model 4501-XX Toxic Gas Sensor Module Cross Sensitivity Data: 4501-04 Carbon Monoxide 4501-10 Sulfur Dioxide Gas Conc. Response Gas Conc. Response H2S 15 P

As usual, Sierra Monitor A gas detector with a Sierra Monitor pedigree, Factory Mutual approved and ready to Manage Your Gas Risk. The 5100-28-IT provides all the built-in features desired by instrumentation and safety professionals, including: • FM Approval for performance and safety • SIL-2 Certified • Modbus RTU RS-485 interface • 4-20 mA output • HART interface • SMC Sentry digital bus interface • Optional Integral alarm relays – Alarm, Warning and Trouble • Aluminum or 316 Stainless Steel e

These options aid in providing a system designed to meet the specific needs of the user. CALIBRATORS 1250-00 Calibration Gas Delivery System (High Capacity) The 1250-00 Calibrator Kit is used to deliver calibration gas for combustible gases and a wide variety of toxic gases including Hydrogen Sulfide, Chlorine, Sulfur Dioxide, Nitric Oxide, Nitrogen Dioxide and others. The 1250 Calibrator Kit consists of a regulator, calibration adapter, carrying case and tubing. The calibration gas cylinders (S