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Servomex 2700 Quick Start Manual

Combustion gas analyser
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2700
Combustion Gas Analyser
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  • Page 1 ™ 2700 Combustion Gas Analyser Please record your analyser details below Part Number Serial Number Tag Number...
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  • Page 7: About This Manual

    NOTES Alert the user to pertinent facts and conditions Scope of this manual This manual describes the operation of the Servomex 2700 Combustion Gas Analyser and details the various options that are available. For the technical specification, see Section 5 of this •...
  • Page 8 Servomex 2700 Quickstart Manual CE Marking The Servomex 2700 analyser carries the CE mark which indicates conformity with the European Community Directives on CE Marking (93/68/EEC), Electromagnetic Compatibility (EMC 89/336/EEC) and Low Voltage Directive (LVD 73/23/EEC). Servomex 2700 control units are marked in conformity with...
  • Page 9 Servomex 2700 Quickstart Manual STARTUP AND SHUTDOWN Analyser startup CAUTION If the analyser is to be installed in a low temperature environment (-20°C) then it should be powered up for a period of two hours before the compressed air aspirator supply is applied.
  • Page 10 Servomex 2700 Quickstart Manual Analyser shutdown WARNING The sensor head is heated and may be attached to a hot flue. The external surfaces will be uncomfortably hot even after power down for several hours. Exercise care when handling the sensor head even when un-powered on a hot flue.
  • Page 11 Operating the analyser (Refer to Figure 2) The Servomex 2700 control unit has a tactile 8 button keypad and back lit LCD (2 lines x 16 characters). During normal use the LCD will display either the default measurement display or a menu-based screen editor display.
  • Page 12 Servomex 2700 Quickstart Manual The measurement display is shown in Figure 2. The top line of the display shows the current measured value (with its units) for each of the sensors fitted. In normal operation the bottom line of the display labels the gases measured.
  • Page 13 CONFIGURE and then enter a password. There are two passwords that can be entered; a supervisor password (default - 2700) which gives access to CALIBRATE, VIEW, SERVICE & SETUP and an operator password (default - 2000) which gives access to CALIBRATE and VIEW only. Both passwords are factory set and may be changed if required.
  • Page 14 Servomex 2700 Quickstart Manual Analyser setup (Refer to Figures 3a and 3b) The setup function allows the user to modify and view the analyser configuration (outputs, alarms, blowback, clock and passwords). 3.3.1 Setting up the concentration alarms The control unit has 2 concentration alarms that can be assigned to either of the 2 possible sensors in the sensor head.
  • Page 15 Servomex 2700 Quickstart Manual 3.3.2 Setting up the relay outputs The Servomex 2700 analyser is supplied with 4 relay outputs that can be assigned to a number of outputs. Output options include concentration alarms, analyser fault, calibration in progress, blowback in progress, autocalibration solenoid valve control lines and blowback solenoid valve control line.
  • Page 16 Servomex 2700 Quickstart Manual 3.3.3 Setting up the analogue outputs The Servomex 2700 is supplied with one dedicated analogue output for each sensor fitted in the sensor head (maximum of 2 analogue outputs). Each analogue output has a minimum and maximum analogue output range.
  • Page 17 Servomex 2700 Quickstart Manual other analogue outputs to be configured. Use the QUIT or MEASURE keys to return to the assign menu or measurement display as required. 3.3.4 Setting up a blowback process The blowback procedure allows the user to apply a burst of a selected gas to the calibration port of the analyser to back flush the sample probe and filter.
  • Page 18 Servomex 2700 Quickstart Manual 5. Use the arrow keys to define the start date for the first blowback. The format will be either day/month/year (DDMMYY) or month/day/year (MMDDYY) as defined in the setup clock procedure (see Section 3.3.5). Use the ENTER key to save the value.
  • Page 19 1. Press the MENU key, then select CONFIGURE, enter a valid password, select SETUP and then UTILITY. 2. Select PASSWORD to change the passwords. 3. Select either SUPERVISOR (default - 2700) or OPERATOR (default - 2000) to define which password is to be changed.
  • Page 20 Servomex 2700 Quickstart Manual NOTE When a low calibration is performed, the zero may be offset between the limits of -500 and +99ppm which enables the effects of non-CO combustibles to be compensated for. If this is done, the span calibration target value should be adjusted by the same amount in order to maintain accuracy.
  • Page 21 3.4.2 Automatic calibration The automatic calibration facility allows the Servomex 2700 analyser to perform routine calibrations without user intervention. The calibration procedure to be used is specified by a number of calibration parameters. These parameters must be set up before an autocalibration is started.
  • Page 22 Servomex 2700 Quickstart Manual Table 1: Recommended calibration gas Solenoid Gas composition Oxygen Combustibles number sensor sensor GAS 1 Zero air (20.95%(v) O HIGH GAS 2 0.3%(v) O balance N * gas composition can be between 0.25% and 2.5% O...
  • Page 23 Servomex 2700 Quickstart Manual 3.4.3 Setting up the automatic calibration parameters From the CALIBRATE menu, select AUTO CALIBRATE and then SET UP AUTO CAL. 1. If two sensors are fitted in the sensor head then select OXYGEN, COe or OXYGEN & COe to calibrate either the oxygen sensor only, the combustibles sensor only or both the oxygen and combustibles sensors.
  • Page 24 Servomex 2700 Quickstart Manual 3.5.1 Testing the analogue outputs This function allows the user to test and adjust the analogue outputs. Select SET OUTPUTS, then mA OUTPUTS, then 0mA, 4mA or 20mA and then press ENTER to set all the analogue outputs to 0, 4 or 20mA.
  • Page 25 Servomex 2700 Quickstart Manual The software filter will also progressively reduce the output fluctuation of the instrument as the filter setting is increased from 0 to 9. 1. Press the MENU key, then select CONFIGURE, enter a valid supervisor password, select SETUP.
  • Page 26 Servomex 2700 Quickstart Manual NOTES Servomex 2700 Quickstart Manual...
  • Page 27 Servomex 2700 Quickstart Manual ROUTINE MAINTENANCE AND SPARES WARNING 2700 spares must be supplied by Servomex Spare parts Item Servomex 2700 Control Unit - Spare part description number Control Unit PCB O only S2710903A Control Unit PCB COe only S2710913A Control Unit PCB O &...
  • Page 28 Servomex 2700 Quickstart Manual Item Servomex 2700 Sensor Head - Spare part description number Sensor Head O only, 100-120Vac S2720704A Sensor Head Low COe Only, 100-120Vac S2720715A Sensor Head High COe Only, 100-120Vac S2720717A Sensor Head O & Low COe, 100-120Vac...
  • Page 29 Servomex 2700 Quickstart Manual Item Servomex 2700 Sensor Head - Spare part description number Band Heater - 240Vac 2653-1832 4" Mounting Gasket Kit S2720985 4" Weld-On Flange Mounting Kit S2720984 Mains Protection Cover S2720983 Enclosure Gasket Kit (Control Unit &...
  • Page 30 Servomex 2700 Quickstart Manual Servomex 2700 Sample Probes continued. Item Servomex 2700 Sample Probes - Spare part description number <700°C, Probe, Open-ended, 0.5m S2740701A <700°C, Probe, Open-ended, 1.0m S2740701B <700°C, Probe, Open-ended, 1.5m S2740701C <700°C, Probe, Filtered, 0.5m S2740702A <700°C, Probe, Filtered, 1.0m S2740702B <700°C, Probe, Filtered, 1.5m *...
  • Page 31 Servomex 2700 Quickstart Manual Item Description Spare part number Quickstart Manual - English 02700003C Quickstart Manual - French 02700013C Quickstart Manual - German 02700023C Installation Manuals - English 02700005C Installation Manuals - French 02700015C Installation Manuals - German 02700025C Service Manual - English...
  • Page 32 Servomex 2700 Quickstart Manual NOTES Servomex 2700 Quickstart Manual...
  • Page 33 Servomex 2700 Quickstart Manual TECHNICAL SPECIFICATION Oxygen measurement performance Item Specification Analogue output ranges 0-1 min. to 0-25% max. O , in 1% steps Display resolution 0.01% O Accuracy ±1% of reading or 0.1% O Response time (T <10 seconds (sensor head only at...
  • Page 34 Servomex 2700 Quickstart Manual General specification Analyser inputs and outputs Digital display 2 line by 16 character back lit LCD. User interface Menu driven with 8 button tactile keypad. Analogue outputs One user-configurable 0-20mA or 4-20mA isolated current output dedicated to each measurement.
  • Page 35 Servomex 2700 Quickstart Manual Ambient temperature Operating -10°C to +55°C (+14°F to +131°F) Control unit Storage -20°C to +55°C (-4°F to +131°F) Ambient temperature Operating -20°C to +70°C (-4°F to +160°F) Sensor head Storage -30°C to +80°C (-2°F to +176°F) Installation category Category II.
  • Page 36 Servomex 2700 Quickstart Manual Hazardous area classification Sensor head Non hazardous locations. Control unit Approved as Ex ic nA nC IIC T5 Gc, Ex tc IIIB T75°C Dc (Ta = -10°C to +55°C) for ATEX Group II, Category 3, Gas and Dust hazardous atmospheres, certificate number ITS10ATEX47005X.
  • Page 37 Servomex 2700 Quickstart Manual Figure 3a VIEW Go to 2 Go to 3 CONFIGURE VIEW Diagnostics Software Version Oxygen sensor output voltage in mV Oxygen sensor temperature in Oxygen Sensor High Cal Point in mV Oxygen Sensor Low Cal Point in mV...
  • Page 38 Servomex 2700 Quickstart Manual Figure 3b SERVICE Set Outputs mA Outputs Set 0,4 or 20mA Disabled Relays Enabled History Delete History SET-UP None Freeze High Set Up Assign Alarms Oxygen Follow Procedure Relays R1, R2, R3 & R4 Set Up Procedure...
  • Page 39 Servomex 2700 Quickstart Manual It is advised that the parameters for Calibration Tolerances, Combustibles Output Ranges and Filters are set as follows. Figure 3c CONFIGURE ENTER PASSWORD 0000 (supervisor) CALIBRATE Oxygen Low Cal MANUAL High Cal Level Calibration Tolerance Oxygen Low ….0.2% Oxygen High …1.0%...
  • Page 40 Servomex 2700 Quickstart Manual NOTES Servomex 2700 Quickstart Manual...

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