Integral probe and remote transmitter combustion oxygen monitor (112 pages)
Summary of Contents for ABB ZDT–FG Series
Installation and Operating Guide Analyze IM/ZDT/FG_5 Zirconia Oxygen Analyzer Low Temperature Version ZDT–FG Series...
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1 INTRODUCTION The ZDT Oxygen Analyzer is designed for continuous Remote alarm indication is provided by two relay outputs. monitoring of oxygen content in applications using 'in situ' Relays are programmed to activate when the oxygen level ZFG2 probes. moves either above or below a pre-defined set point. The second alarm relay can also be used as a 'general alarm' Operation and programming of the ZDT Analyzer is via four which activates in the event of an instrument or system fault.
2 PREPARATION 2.1 Checking the Instrument Type – Fig. 2.1 Check the instrument code number against Table 2..1. Table 2.1 Instrument Identification Release the lower panel and remove from the front of the instrument. Fig. 2.1 Checking the Code Number...
3 MECHANICAL INSTALLATION 3.1 Siting Requirements – Fig. 3.1 The instrument is designed for wall mounting and weighs approximately 9kg (20lb). Note. If the flexible conduit supplied with Z-FG2 probes is of insufficient length [6m (20ft.) standard, 10m (33ft.) optional], it can be extended using a suitable junction box (part no.
3 MECHANICAL INSTALLATION 3.2 Overall Dimensions – Fig 3.2 4 x ø 9.5 ( Fixing Centers Dimensions in mm (in.) ) holes for M8 fixing 150 (5.9) 227 (8.9) 252 (9.9) 5 (0.2) 133 (5.2) Fig. 3.2 Overall Dimensions 3.3 Mounting – Fig. 3.3 Drill suitable holes for the type Mark-out the fixing centers of the of fixings to be used.
4 CONNECTIONS Warning. • Mains power – before making any connections, ensure that the power supply, any powered control circuits and high common-mode voltages are switched off. 4.1 Cable, Tubing and Gland Specifications Information. • Five 22mm (0.87 in.) diameter cable entries are provided in the base of the terminal chamber. The cable entries accept M20 glands (not supplied).
4 CONNECTIONS… 4.2.2 Access to Terminals – Fig. 4.1 4.2.3 Connections – Fig. 4.2 1 Mains: Live to 'L' Neutral to 'N' Unlock and remove the Earth to 'E' lower panel from the 2 Retransmission Output (4 to 20mA): front of the instrument –...
…4 CONNECTIONS 4.2.4 Relay Contact Protection 4.3 Selecting the Mains Input Voltage – Fig. 4.4 and Interference Suppression – Fig. 4.3 Input voltages (230V or 110V) for the main analyzer p.c.b. and To reduce the risk of instrument malfunction or incorrect the probe heater supply p.c.b.
4 CONNECTIONS… 4.4 Replacing the Fuses – Fig. 4.5 The instrument is protected by two fuses located on the probe heater supply p.c.b. In order to replace the fuses, the main analyzer p.c.b. must be removed for access as shown. Caution.
…CONNECTIONS 4.5 Reference Air Supply – Fig. 4.6 s i l – e i l . y l l l a e i l t i f – t i f – Table 4.3 Analyzer and Probe Compatibility Information. The location of the Analyzer code number is shown in Fig. 2.1. Refer to the probe's operating instructions, IM/ ZFG2 for information on locating the code number of the probe.
5 CONTROLS AND DISPLAYS 5.1 Displays – Fig. 5.1 5.2 Switch Functions – Fig. 5.2 The display comprises a 5-digit, 7-segment digital upper display line and a 16-character dot-matrix lower display line. In Advance to operation, the upper display line shows actual values of next page % oxygen, temperature, cell millivolts or alarm set points.
6 OPERATION 6.1 Instrument Start-up Ensure all electrical connections have been made correctly and apply power to the instrument. 6.2 Operating Page The operating page is a general use page in which continuously updated measured values and preset parameters can be viewed but not altered.
6 OPERATION 6.3 Operating Page Error Messages When an error has been detected, the following error messages appear in the in place of the % oxygen display. Operating Page, e l i y l t y f i , t l c t i , f f c t i...
7 PROGRAMMING… Note. Before commencing a gas calibration procedure the analyzer and probe must be switched on and allowed to operate for at least one hour to allow the system to stabilize thermally. 7.1 Single-point Calibration The calibration sequence involves standardizing the analyzer and the oxygen probe, using air as the test gas. Until a calibration sequence has been completed successfully, the existing slope remains unaffected.
…7 PROGRAMMING 7.2 Two-point Calibration Oxygen Calibration Sequence ----- OXYGEN CAL. SEQ. Cell Constant mV 0. 0 The upper display shows the millivolt offset of the oxygen probe from the last successful calibration. Cell Constant mV Span % of Theory 100.
7 PROGRAMMING… …7.2 Two-point Calibration Continued from previous page Calibrating Span 1. 0 0 The upper display indicates measured % oxygen. The display advances automatically to the next frame when a stable reading is detected. To abort Calibrating Span calibration, press either the switch to advance to the next frame.
…7 PROGRAMMING 7.3 Preset Calibration Oxygen Calibration Sequence ----- OXYGEN CAL. SEQ. Cell Zero mV 0. 0 The upper display shows the millivolt offset of the oxygen probe from the last successful calibration. Cell Zero mV Span % of Theory 100.
7 PROGRAMMING… 7.4 Access to Secure Parameters A 5-digit security code is used to prevent tampering with the secure parameters. Security Code ----- [00000 to 99999] If an incorrect value is entered, access to programming pages is inhibited. Security Code Press to advance to the Language Selection Page...
…7 PROGRAMMING 7.6 Set Up Outputs Page Set Up Outputs ----- SET UP OUTPUTS Alarm A1 Action ----- Select the required alarm action from the following table: A1 Action The set point band is defined as the actual value of the Set Point plus or minus the hysteresis value.
7 PROGRAMMING …7.6 Set Up Outputs Page Continued from previous page Retransmission Zero 00. 0 0 Set the required retransmission zero value, in % oxygen units. [0% to 20.00% (linear output)] Retrans Zero [0.01% to 0.25% (logarithmic output)]. Retransmission Span 25.
8 CALIBRATION Note. Electrical calibration is carried out prior to despatch and further calibration is not normally necessary. However, if inaccurate or inconsistent readings are obtained, follow the procedures detailed in this Section. 8.1 Equipment Required a) Millivolt source (cell input simulator), –20.0 to 180.0mV. b) Millivolt source (temperature input simulator), 10.0 to 40.0mV.
8 CALIBRATION 8.3 Electrical Calibration Page xxxxx In this section the actual values denoted by are not important and should only be used to determine display reading stability. Electrical Calibration Page ----- ELECTRICAL CAL. Calibrate xxxxx Select YES to access the electrical calibration sequence. Select NO to advance to the parameter below.
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