Integral probe and remote transmitter combustion oxygen monitor (112 pages)
Summary of Contents for ABB ZDT
Oxygen Analyzer System Oxygen Analyzer System High Temperature Version, High Temperature Version, High Temperature Version, High Temperature Version, for use with ZGP2 Probes for use with ZGP2 Probes for use with ZGP2 Probes for use with ZGP2 Probes ABB Instrumentation...
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2 PREPARATION 2.1 Checking the Instrument Type – Fig. 2.1 Caution. Both front panels are held in position by the front panel screws only and are not otherwise captive. When removing the panels, ensure they are adequately supported. Check the instrument code Table 2.1 Instrument Identification number against Table 2.1.
3 MECHANICAL INSTALLATION 3.1 Siting Requirements – Fig. 3.1 The instrument is designed for wall mounting and weighs approximately 9kg (20lb). Maximum 55°C Probe 100m (330ft.) Max. –5°C Min. A – Close to Oxygen Probe Note. The retransmission output operates to specification within the range –20°C to +70°C.
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) 5 (0.2) 252 (9.9) 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.
Retransmission output – Do not exceed the maximum load specification for the selected current retransmission range (see the associated specification sheet, SS/ZDT/GP). The retransmission output is isolated. Therefore the –ve terminal must be connected to earth (ground) if connecting to the...
4 CONNECTIONS… 4.2.2 Access to Terminals – Fig. 4.1 4.2.3 Connections – Fig. 4.2 1 Mains: Live to ‘L’ Caution. Neutral to ‘N’ Both front panels are held in position by the front panel screws only and are not otherwise captive. Earth to ‘E’...
…4 CONNECTIONS 4.2.4 Relay Contact Protection and Interference 4.3 Selecting the Mains Input Voltage – Fig. 4.4 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 4.5 Reference Air Supply – Fig. 4.6 – . y l l l a e i l 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/ZGP2, 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.
…7 PROGRAMMING Note. Before commencing a gas calibration procedure the analyzer and probe must be switched on and allowed to run for at least one hour to allow the system to stabilize thermally. 7.1 Single-point Calibration 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 Zero 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 Calibration Pass/Fail ----- On completion a calibration status message is displayed. Calibration Pass: Calibration sequence successful Calibration Pass Failed Constant: Cell offset >±10mV Failed Constant (upper display shows cell constant) Failed Span Failed Span %: Cell output <90% or >110% of slope (upper display shows measured slope)
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 199999] If an incorrect value is entered, access to programming pages is inhibited. Security Code English Press to advance to the...
7 PROGRAMMING… 7.6 Set Up Thermocouple Page Set Up Thermocouple ----- Page header SET UP T/C Thermocouple Type ----- Set the thermocouple type required: Type K, R, S or NONE. If thermocouple type is set to NONE, a preset temperature must be used – see below. T/C Type NONE Preset Temperature...
…7 PROGRAMMING 7.7 Set Up Outputs Page Set Up Outputs ----- Page header SET UP OUTPUTS Alarm A1 Action ----- Set 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 …7.7 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 .
APPENDIX A – ELECTRICAL CALIBRATION Note. Electrical calibration is carried out prior to despatch and further calibration should never be necessary. However, if inaccurate or inconsistent readings are obtained, follow the procedures detailed in this Section. A.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.
APPENDIX A – ELECTRICAL CALIBRATION A.3 Electrical Calibration Page In this section the actual values denoted by ‘x x x x x ‘ are unimportant and are used to determine display reading stability, when carrying out the electrical calibration procedure. Electrical Calibration Page ----- (To access this page see Fig.
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