When the remote probe is plugged in the internal sensor is disabled and the display reads the remote probe concentration. 9.3 The remote probe will require 5-10 minutes to stabilize depending upon the time since last use. 9.4 Calibrate, if necessary, by following the instructions in Section 6 except that the adjusting screw is located in the back of the remote sensor head. OXYGEN DEFICIENCY MONITOR PAGE 11 10. NOTICE The enclosed replacement sensor for your Model 55 Personal Oxygen Monitor is an

Milpitas, CA 95035 USA 408-262-6611, Toll Free 800-727-4377, FAX: 408-262-9042 Visit our Web Site: E-Mail: sierra@sierramonitor.com Sentry MODBUS I/O Memory Map Sentry Controller MODBUS Memory Map Detail All Registers are MODBUS 16 bit registers 2 There are five different ways of using MODBUS registers (see italic reference number in left column for each address) 2.1 As an Analog Value: In most cases these values are scaled by multiplying by 10. 2.2 As eight packed digital states, packed into on

More information on the IT Series is available in the specific IT Series data sheets. For other gases Sierra Monitor offers the 5100 Series Gas Sensor Modules described in this data sheet. Sierra Monitor toxic gas sensor modules utilize electrochemical technology to achieve the most accurate and reliable monitoring of gas concentration. All Sentry 5100 Series sensor modules easily interface to the Sentry controller. Each module has a unique address, which allows signals from multiple modules to

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

Adjustment of sample and dilution air flow meters determines the dilution ratio. Concentrations displayed on the Sentry Controller must then be multiplied by the dilution factor to arrive at actual concentrations. SENSOR MOUNTING PRODUCTS 5311-00 Rainshield The Rainshield is mounted over the sensor head to protect the sensor from direct exposure to rain, hosedown and other splashing liquids. 5394-00 Duct Mount Fitting The Duct Mount Fitting facilitates installation of the gas sensor module onto

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

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

From a simple 4-point monitoring system to a complete plant wide hazardous gas monitoring system with hundreds of gas detection points, Sentry meets the need. With the Modbus communications interface Sentry can easily interface with a PC-based Distributed Control System to provide a graphical display of hazardous gas conditions in the plant. PC-based DCS software in conjunction with Sentry provides the operator enhanced data acquisition, alarming and alarm management, historical trending, distr

100 VDC, 130 VAC Nominal 5 volts DC, source 25 mA, SAFE and ALARM signals 70 dB buzer. TTL interface to Model 2102 Alarm Panel is user configurable. Less than 30 seconds Less than 60 seconds Less than 30 seconds None, other than routine calibration -4oF to158oF -20°C to 70°C Aluminum 3.7 x 2.2 x 1.1 in. (9.4 x 5.7 x 2.8 cm) 3.8 oz (108 g) UL 61010-1:2001 CSA-C22.2 ORDERING INFORMATION Combustible Gas 2001-00 Hydrogen Sulfide 2003-00 Carbon Monoxide 2006-00 Sierra Monitor Corporation 1991 Tarob C

SAFE and ALARM signals. Internal LED for calibration Class I, Division 1, Groups C, D Cast aluminum for protection against galvanic corrosion 6.75 x 4.0 x 3.5 in (17.1 x 10.2 x 6.0 cm) 24 oz (678 g) UL 61010-1:2004 CSA-C22.2 ORDERING INFORMATION Combustible Gas 201-00 Hydrogen Sulfide 203-00 Carbon Monoxide 206-00 © 2008 by Sierra Monitor Corporation Printed in U.S.A. Sierra Monitor Corporation 1991 Tarob Ct. Milpitas, CA 95035 (408) 262-6611 800-727-4377 FAX: (408) 262-9042 Visit our