1991 Tarob Court, Milpitas, CA USA 95035 Phone: (800) 727-4377 Email: sierra@sierramonitor.com 408-262-6611 Fax: 408-262-9042 ACCESSORIES ACCESSORIES ACCESSORIES SAMPLE DRAW PRODUCTS Sample draw products are used in applications in which the sensor cannot be installed directly at the gas sensing location due to poor accessibility or the harshness of the environment. Sample is continuously drawn from the sensing location to the sensor at a more suitable location. The primary component of the samp

L(Low) ... The level that the static charge elimination time becomes slower than the one in the initial state. .The dirt detection is done when the maintenance start-up signal is input. 5. Setting of frequency selection switch .This switch is used to switch the [energy-saving operation] and [continuous static charge eliminating operation]. .With [continuous static charge eliminating operation], the ion-production frequency needs to be selected after the static charge elimination is completed. Op

The concentration of the span gas must be equal to the alarm point desired. The equivalent substitute gas is 80 ppm Hydrogen (H2) for the Model 2050 and 150 ppm Carbon Monoxide (CO) for the Model 2060. Calibration requires application of the span gas to the sensor and adjustment of the sensitivity adjustment potentiometer. Warning: During calibration the alarm will turn on and remote alarms connected to the alarm relays will be activated. Disable the remote alarm if necessary. Fig. 4-1 Location

Personnel injury and costly business interruptions are also likely. Factory Mutual requires electro-optical flame detectors in the semiconductor wet benches to monitor for fire. These flame detectors must be suitable for the hostile chemicals used in the etching process (such as hydrofluoric, sulfuric, and hydrochloric acids). Furthermore, they must be tested and approved for fire response to FR polypropylene now used in the construction of wet benches as well as other fuels such as isopropyl al

The sensor screws into one hub of the enclosure and plugs into the bottom electronics card via a six pin connector. Cabling to the controller connects to a three pin spring loaded terminal strip. 7.5.2 TROUBLE ANALYSIS Electrical adjustment, or replacement of the sensor will be necessary under the following conditions: • Controller displays the following error messages: CHK BRIDGE VOLT SENSOR FAILURE LOW SENSITIVITY • False readings or alarms are received due to sensor inaccuracy. Warning: : Dur

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

2-butano. 4100-3. nitroethan. 4100-3. 4100-3. i-butan. 4100-3. 4100-3. nitromethan. 4100-3. 4100-3. n-butan. 4100-3. 4100-3. 1-pentano. 4100-3. 4100-3. 1-butano. 4100-3. propana. 4100-3. 2-butano. 4100-3. propan. 4100-3. i-butano. 4100-3. 4100-3. i-propano. 4100-3. 4100-3. t-butano. 4100-3. 4100-3. n-propano. 4100-3. 4100-3. buten. 4100-3. 4100-3. propylen. 4100-3. 4100-3. carbon monoxid. 4100-3. R-1. 4100-3. chlorofor. 4100-3. R-1. 4100-3. cyclohexan. 4100-3. 4100-3. R-2. 4100-3. cyclopentan. 4

The monitors provide 0.5 Amp dry contract relay that is activated when the concentration of gas exceeds the factory-set (and user-adjustable) level. A TTL signal can be user configurable to interface with Sierra Monitor’s alarm panels. This signal may be used to activate a remote alarm, fan or process controller. The standard configuration has a normally operating open relay but a fail-safe normally operating closed relay is field selectable. A durable, cast aluminum explosion-proof enclosure h

The Model 2102 supplies the gas monitors with DC power, individual alarm relays and LED’s for visual alarm indication. An audible alarm is available on the 2102-01. The Model 20X and 200X series are fixed installation gas sensor modules designed for continuous operation in open or confined areas. The Model 20X and 200X Series gas modules consist of the Model 201 and 2001 for Combustibles, the 203 and 2003 for Hydrogen Sulfide and the Model 206 and 2006 for Carbon Monoxide. Reliable, continuous

sor module is available to meet your requirements. place the adsorbed oxygen. Also, these gas sensor modules can be calibrated wit. the gas of interest or with methane or carbon monoxide. Thus, the user does not have to obtain a special calibra. Nobel Metal Wir. tion gas. Senso. The Model 4100 Series provides a non-linear 4-20 mA out. put signal that can interface with the Sierra Monitor Sensy. Heater Coi. controller or other linearizing controllers / indicators. Curve. and linearizing equations