Related Manuals for Eaton Crouse-Hinds MTL Z230
Summary of Contents for Eaton Crouse-Hinds MTL Z230
- Page 1 Instruction manual February 2017 MTL gas analysers & systems INM 130-0186 Rev 8 Z230 MTL zirconia oxygen analyser...
- Page 2 DECLARATION OF CONFORMITY A printed version of the Declaration of Conformity has been provided separately within the original shipment of goods. However, you can find a copy of the latest version at - http://www.mtl-inst.com/certificates INM MTL 130-0186 Rev 8...
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Page 3: Table Of Contents
CONTENTS DECLARATION OF CONFORMITY ............ii INTRODUCTION . - Page 4 THIS PAGE IS LEFT INTENTIONALLY BLANK INM MTL 130-0186 Rev 8...
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Page 5: Introduction
INTRODUCTION General Description The Z230 is a microprocessor controlled oxygen analyser based on a Zirconia oxygen sensor. It provides a range of features and a performance without parallel for an analyser of this type and cost. Standard features include auto-ranging over a span of 100% to 0.01ppm, user programmable alarm levels, hysteresis and analogue output. -
Page 6: Specification
SPECIFICATION Display • Multi digit LCD - character height 12.7mm Display ranges • Display range 0.01ppm to 100%, auto ranging Display Resolution • From 100% to 103% • From 10.0% to 99.0% 0.1% • From 1.00% to 9.99% 0.01% • From 0.100 to 0.999% 0.001% •... -
Page 7: Alarm Outputs
2.13 Alarm outputs 2 alarms each user programmable for: • Mode - HIGH, LOW or OFF. • Level - full range of instrument. • Hysteresis - 0% to 10% of set point. • Volt free C/O contacts rated at 48v 0.5A AC or DC, normally energised 2.14 Serial Communication Port •... -
Page 8: Installation
INSTALLATION Unpacking and visual checking Take all normal precautions when opening packages. In particular, avoid the use of long bladed cutters. Check for any sign of damage. Check that all pipe connections have captive seal nuts - search packing if any are missing. Calibration overview The instrument should be installed where free air ventilation around the whole case is provided. -
Page 9: Key Requirements
3.3.1 Key requirements • The sample must not contain halogens, sulphur or silicon (any silicones) as these will poison the sensor. • The sample must be non-condensing, non-corrosive and particle free. • The sample exhaust must be at or near atmospheric pressure in all cases. •... -
Page 10: Electrical Connections
Electrical connections 3.4.1 Supply Power connections should be made to the instrument using the IEC lead supplied. 3.4.2 RS232 Connection NOTE: See also section 8: Communication Protocol DCE (instrument) DTE (PC) signal description Signal gnd Data received by instrument Data transmitted from instrument 3.4.3 Alarm and Analogue Output connections See figure 2... -
Page 11: Commisioning
COMMISIONING Switching on When the analyser is fully connected it may be switched on. The cell heater will begin to warm up. During this time the display will flash “HE xxxxx and the concentration display will make high and low excursions. Once the correct temperature is reached, the “HR” will end and the display will stabilise. -
Page 12: Alarm 1
4.2.2 Alarm 1 NOTE: All alarms will be in the ‘alarm’ state whilst the instrument is booting (approximately 20 seconds after power on) or if the instrument registers an error, regardless of the alarm setting. 3P xxxx The display shows “3P xxxx”, where “xxxx” is the oxygen concentration at which Alarm 1 is set. - Page 13 Figure 3: 130 series menu INM MTL 130-0186 Rev 8...
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Page 14: Calibration
CALIBRATION CAUTION Various procedures associated with calibration maintenance affect the outputs of the instrument. Any of these outputs that are being used for control (or the associated control loop) should be disabled before commencing. Calibration overview The Z230 is a very stable analyser with a drift rate of better than 2% of reading per month. How often the calibration is checked or verified depends on the quality regime being operated at the installation site. -
Page 15: Calibration Procedure
Calibration procedure NOTE: see Figure 3 All calibration screens operate on the same principle :- • The display shows the present reading. This may be changed by pressing “Edit” and then using the “ ” or “ ” arrows to adjust the value. •... -
Page 16: Maintenance
MAINTENANCE Calibration is the only routine operation that is necessary on a regular basis. The Z230 is a very stable analyser with a drift rate of better than 2% of reading per month. How often the calibration is checked or verified depends on the quality regime being operated at the installation site. -
Page 17: Technical Description Of Sensor
TECHNICAL DESCRIPTION OF SENSOR The zirconia oxygen sensor (see sketch below) is an impervious tube-shaped zirconia (zirconium oxide) element with a closed end coated externally and internally with porous metal electrodes, typically platinum. At high temperatures, typically above 400°C, the zirconia becomes an oxygen ion conductor, which results in a voltage being generated between the electrodes dependent upon the differences between the partial pressures of the oxygen in the sample and the oxygen in a reference gas (generally air). -
Page 18: Communication Protocol
COMMUNICATION PROTOCOL Communication parameters are 9600 Baud, 8 bits, no parity, 1 stop bit and no handshaking. The instrument is DTE. The general form of the protocol is: The protocol is a single command and response protocol. 2. A command consists of an “address” and an “action” . A received valid address is always responded to even if the action is invalid. - Page 19 Table 1 - Common groups Send Function Reply (verbose) Reply (terse) Limits (where applicable) Notes C9 Load def=0 C9=0 0 or 1 Load defaults C8 Sens 2 os=0.00 C8 =0.00 Cell offset C7 Sens 2 K=1 C7 =45.0 Cell slope C6 Sens 2 H cal =100% C6 =0 AxCy...
- Page 20 Table 1 - Common groups (continued) P9 Terse=0 P9=1 0 or 1 1 to set instrument into terse mode – 0 to set verbose P8 A2 Mode=1 P8 =1 0 to 3 0, 1, 2, 3 in terse - Off, High, Low, status in verbose P7 A2 Hyst=1.0% P7 =1.0...
- Page 21 Table 2 - Error messages Error messages take the form ‘? xx’ where ‘xx’ is a numeric code as explained below. Code Error Description Buffer overflow More than 30 characters were received without message terminator (<CR><LF>). Any subsequent characters will begin a new message. Timeout 10 seconds has elapsed since the last character was received without message terminator.
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- Page 24 MTL Instruments GmbH, Heinrich-Hertz-Str. 12, 50170 Kerpen, Germany UNITED ARAB EMIRATES Cooper Industries/Eaton Corporation Tel: +49 (0)22 73 98 12 - 0 Fax: +49 (0)22 73 98 12 - 2 00 Office 205/206, 2nd Floor SJ Towers, off. Old Airport Road, E-mail: csckerpen@eaton.com...