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OLCT 200 User Manual |

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Copyright



Feb-2015 by Oldham S.A.S.

All rights reserved. No reproduction of all or part of this document, in any
form, is permitted without the written consent of Oldham S.A.S.
All of the information that is provided in this document is accurate to the best
of our knowledge.
As a result of continuous research and development, the specifications of
this product may be changed without prior notice.

Oldham S.A.S
Rue Orfila
Z.I. Est

– C.S. 20417

F

–62027 ARRAS Cedex

Tel.: +33 (0)3 21 60 80 80
Fax: +33 (0)3 21 60 80 00
www.oldhamgas.com

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Содержание OLCT 200

Страница 1: ...LCT 200 Gas Detection Transmitter P N 77036007 1 Revision 6 2 Reference Firmware 3 01 wired rev 3 2 Reference Firmware 3 09 wireless rev 1 3 Reference Firmware 3 09 wireless rev 2 4 The Fixed Gas Dete...

Страница 2: ...consent of Oldham S A S All of the information that is provided in this document is accurate to the best of our knowledge As a result of continuous research and development the specifications of this...

Страница 3: ...can be held liable for any damages including without limitations damages for the loss or interruption of manufacture loss of information defect of the OLCT 200 unit injuries loss of time financial or...

Страница 4: ...OLCT 200 User Manual 4...

Страница 5: ...ype and OLCT 200 Signal Conditioning 31 SECTION 3 INITIAL START UP 33 3 1 Transmitter Configuration Menu 33 3 2 Initial Bridge Sensor Monitor Start Up 34 3 3 Initial Toxic Oxygen Sensor Monitor Start...

Страница 6: ...3 7 2 Set Balance Set Sensor Voltage Technicians only 64 7 3 Set Gain to Unity Technicians only 65 7 4 PreAmp Gain Adjust Technicians only 65 7 5 Zero Cal Value Technicians only 66 7 6 Raw Min Max Cou...

Страница 7: ...us severe mechanical shock Protect the OLCT 200 from dripping liquids and high power sprays Use only for applications described within this manual Oxygen deficient atmospheres may cause combustible ga...

Страница 8: ...AFETY REASONS THIS EQUIPMENT MUST BE OPERATED AND SERVICED BY QUALIFIED PERSONNEL ONLY READ AND UNDERSTAND INSTRUCTION MANUAL COMPLETELY BEFORE OPERATING OR SERVICING ATTENTION POUR DES RAISONS DE S C...

Страница 9: ...ired OLCT 200 models provides a standard 4 20 mA output signal for connection to control systems or other alarm instrumentation Available options include an Alarm Relay RS 485 Modbus board an Isolated...

Страница 10: ...recognized by the OLCT 200 and prompts users to either upload new configuration data or continue with data from the previous smart sensor Missing Sensors trip the FAIL alarm Sensors are industry prove...

Страница 11: ...or location Air movement by fans prevailing winds and convection should be carefully evaluated to determine if a leak is more likely to raise gas levels in certain areas within the facility Vapor dens...

Страница 12: ...osion Proof Housing Figure 2 2b OLCT 200 Explosion Proof Housing with Dual Sensor Head Adaptor N P T Hub 2 Places 4 61 8 0 Universal Sensor Head 25 Dia 2 Places 5 50 5 3 Dimensions in inches 0010 1200...

Страница 13: ...al bottom 10 0233 I O Power Supply board generates voltages needed for LCD backlight relays RS 485 Modbus HART and Bridge sensor and is required with any of these I O functions The enclosure is equipp...

Страница 14: ...OLCT 200 User Manual 14 Figure 2 3a Outline Drawing OLCT 200 Wired Models...

Страница 15: ...OLCT 200 User Manual 15 Figure 2 3b Outline Drawing OLCT 200 Battery Powered Wireless Models Figure 2 3c Outline Drawing OLCT 200 10 3VDC Powered Wireless Models...

Страница 16: ...odel 3 Wire Model 10 30VDC Wireless Model Battery Powered Wireless Model 25mA max 24VDC 100mA 24VDC with 0 5watt sensor Relays 40mA per relay 120mA for three energized relays RS 485 20mA 20mA sleep mo...

Страница 17: ...ravel is dependent upon several factors including the cable gauge DC power supply voltage level and impedance of the input of the receiving device Assuming a nominal 24 VDC power supply maximum total...

Страница 18: ...Instructions Unscrew the cover on the OLCT 200 explosion proof enclosure Loosen the 2 thumbscrews holding the display assembly in place and remove it A small sensor cable is attached with sufficient l...

Страница 19: ...OLCT 200 User Manual 19 2 6 2 Installation Drawing 11 0100...

Страница 20: ...put terminal When the OLCT 200 is equipped with the bottom 10 0233 I O Power Supply board shown in Figure 2 5 the 2 wire 4 20mA output is disabled and one of the 10 0233 s 3 wire outputs must be used...

Страница 21: ...es and Wiring The OLCT 200 s radio module mounts piggy back to the back of the Display assembly as shown in Figure 2 6 The module s MMCX RF connector connects to the antenna fitting s pigtail coax cab...

Страница 22: ...rews holding the display assembly and remove it A small ribbon cable is attached with sufficient length to allow access to the I O PCB mounted in the bottom of the enclosure Figure 2 7 Power and signa...

Страница 23: ...is recommended there be at least 20dB extra system operating margin RF Rules of Thumb Doubling the range with good RF Line of Site LOS requires an increase of 6 dB Doubling the range without good RF...

Страница 24: ...ond layer of self vulcanizing weatherproofing tape such as 3M 23 order 1000 2314 with a final layer of adhesive PVC tape see Figure 2 9 Figure 2 9 Water Proofing Antenna Connections 2 6 4 5 System Gro...

Страница 25: ...nd protected from noise spikes to prevent false Alarm Reset Figure 2 10 10 0234 Alarm Relays Modbus Option Instructions Unscrew the cover on the OLCT 200 explosion proof enclosure Loosen the two thumb...

Страница 26: ...others should have J1 in the B position Front panel Rx Tx LEDs are helpful troubleshooting tools Figure 2 11 RS 485 Modbus Wiring 2 8 Isolated 4 20mA Output 10 0250 Option Description The optional 10...

Страница 27: ...lications the power is supplied from the controller that is receiving the 4 20 mA output In these applications only three wires are required since common is shared from the I O board to the HART modem...

Страница 28: ...tor added to the output loop since the controller has a 150 ohm terminating resistor installed from the factory Figure 2 13 10 0351 HART Modem Option Instructions for Accessing Process Variables with...

Страница 29: ...e Figure 2 14 Connection Points for Connecting HART Handheld Figure 2 14 Top View of OLCT 200 showing HART connection terminals At the controller end connect the HART handheld directly across the sign...

Страница 30: ...sensor heads with catalytic bead Infrared or PID sensors must connect to S1 located on the optional I O PCB assembly Figure 2 5 Figure 2 16 10 0247 Smart Sensor Head Assembly Smart Sensors are automat...

Страница 31: ...In addition same sensor types have different response coefficients signal strength and gain and offset requirements The block wiring diagram in Figure 2 18 illustrates how OLCT 200 s are able to accep...

Страница 32: ...OLCT 200 User Manual 32...

Страница 33: ...ual 4 20mA output capability If both the O2 TOXIC and LEL Current menu items are ON the OLCT 200 will function as a dual gas monitor with both sensor inputs and 4 20mA outputs active Either input may...

Страница 34: ...setting sensor volts using the OLCT 200 LCD The voltage displayed on the LCD is monitored across TB1 REF and TB1 ACT on the OLCT 200 Power Supply board Figure 2 4 and may be confirmed with a voltmeter...

Страница 35: ...mart electrochemical sensors rarely require adjustments other than routine calibrations to provide accurate readings However after installation the following checks should be performed to insure prope...

Страница 36: ...OLCT 200 User Manual 36...

Страница 37: ...AL PURGE delay to prevent external alarms during calibration Wireless models transmit 200 counts 884 counts for oxygen during CAL PURGE Local OLCT 200 alarm relays if equipped are inhibited during CAL...

Страница 38: ...OLCT 200 User Manual 38 Figure 4 1 Calibration Gas Input...

Страница 39: ...y 1 minute press the EDIT key to perform a SPAN calibration WARNING The SPAN gas used must match the value specified since this is what the OLCT 200 will indicate after a successful SPAN calibration T...

Страница 40: ...lashing the FAIL LED ALL ALARM EVENTS EXCEPT FOR LOW BATTERY INCREASE WIRELESS TRANSMISSIONS TO EVERY 6 SECONDS 4 2 1 ALARM 3 UNDERSTANDING FAULT LEVEL OPERATION The A3 alarm is typically dedicated to...

Страница 41: ...nu database Upon installation many menu items will contain default values from the factory and require changes to better match a user s particular application OLCT 200 menus may be conFigured from the...

Страница 42: ...items All SETUP menu items have at least one page of sub menus Items with sub menus are indicated by the symbol right hand pointing arrow at the end of each line Edit menu items by pointing to them pr...

Страница 43: ...tain virtually any 16 character ASCII field It is typically used to describe the monitored point by user tag or other familiar terminology L E L I NP UT 2 L CD Co n t r a s t A d j Mo d b u s RS 4 8 5...

Страница 44: ...ghest amount of deadband allowed is 5 The 4 20mA output is not affected by this menu item Track Negative set to NO causes negative values to read the Zero 0 value in data displays The CAL MODE readout...

Страница 45: ...ls may be set from 0 to 20mA Quiescent current of 2 wire models limits this setting to 3 to 20mA TX Sensor Life wired models only set for YES causes the OLCT 200 4 20mA output to transmit a sensor lif...

Страница 46: ...o g 0 8 12 0 4 0 3 17 A 1 I N 0 8 12 0 4 0 3 5 1 A 2 I N 0 8 12 0 4 0 3 5 5 A CK 0 8 12 0 4 0 4 16 A 2 OUT 0 8 12 0 4 0 4 2 3 A 1OUT 0 8 12 0 4 15 0 0 A 1 I N 0 8 12 0 4 16 4 3 A 1OUT 0 8 13 0 4 0 2 0...

Страница 47: ...r is lost K3 is a FAULT alarm and is always failsafe K2 Acknowledge set for YES means the UP RESET key RESET key during either data display will set K2 to the normal state EVEN when an Alarm 2 conditi...

Страница 48: ...and Date must be set to correctly match its location They are set at the factory in a 24 hour format but may require adjustment to match the location s time date after shipment Follow the procedure i...

Страница 49: ...special key sequence of four consecutive UP keystrokes There are two Diagnostics menus useful for driving outputs without exposing the sensor to the target gas The OUTPUT SIMULATION menu allows setti...

Страница 50: ...S SETUP menu is not available because the serial port is no longer active Figure 5 12 Modbus RS 485 Setup Menu WA RNI NG A l a r m p r o c e s s i n g w i l l b e h a l t e d d u r i n g d i a g n o s...

Страница 51: ...s back to FALSE automatically Read Only Registers D2A Raw Chan 1 31001 4 NA D2A Raw Chan 2 31002 4 NA Calibrated 10 bit value representing the D2A value of 0 to 1023 for 25 to 105 FS 200 0 1000 100 IM...

Страница 52: ...erature 31012 4 NA 16 bit integer ranging from 1 to 4095 scaled for 55 to 125 degrees C Memory Floating Point Note Returned as 15bit plus sign 2s complement with 5 over underrange applied Consider ove...

Страница 53: ...3 4 NA Chan 1 Cal Span Devisor 41004 4 NA Chan 1 Zero Real 41005 4 NA Chan 1 Zero Devisor 41006 4 NA Chan 1 Span Real 41007 4 NA Chan 1 Span Devisor 41008 4 NA Chan 1 Fault Real 41009 4 NA Chan 1 Faul...

Страница 54: ...the A D and D A converters 5 11 SYSTEM SECURITY The SYSTEM SECURITY menu offers two levels of protection A LOW level allows CAL MODE sensor calibrations but requires the 4 digit Pass Code prior to al...

Страница 55: ...h transceiver on a wireless network must have its RADIO SETUP menus configured to share the same Hop Channel and System ID in order to communicate see section 6 5 There should never be two servers wit...

Страница 56: ...nds the monitor performs a sniff test to detect level of target gas present at the sensor At each sniff test the Zzz s Sleep Mode icon is briefly replaced by an RS icon as described above in section 2...

Страница 57: ...00 monitor SW1 should be OFF if the monitor is to be out of service for long periods IMPORTANT Do not turn SW1 ON until the controller designated as Server is fully operational and ready to communicat...

Страница 58: ...ID may be set from 1 255 and is similar to a password character or network number and makes network eavesdropping more difficult A transceiver will not go In Range of or communicate with a transceive...

Страница 59: ...ts every 54 seconds IMPORTANT More frequent RF transmissions deplete the battery faster Radio Status opens a page indicating if the OLCT 200 is In Range of the Server A voltage reading on this page di...

Страница 60: ...tation to receive data from OLCT 200 s Figure 6 4 WX4 base stations must have their Communications menus set for Wireless Receiver mode as shown in Figure 6 4 In Receiver mode the WX4 may have 1 4 cha...

Страница 61: ...OLCT 200 User Manual 61 Figure 6 5...

Страница 62: ...OLCT 200 User Manual 62...

Страница 63: ...tical items Figure 7 1a Technicians Menu Tree Wired Models S E N S OR B A L A NC E Re a d i n g 3 Co u n t s 4 9 6 UP DN t o Ch a n g e NE X T t o E x i t S E N S OR V OL T A GE V o l t s 2 0 4 UP DN...

Страница 64: ...ge sensors may be from 2 to 6 volts excitation voltage at the sensor This means if the sensor is mounted a long distance away the voltage at the OLCT 200 may have to be higher to compensate for losses...

Страница 65: ...etting automatically resets previous calibration OFFSET GAIN values to UNITY as described in section 7 3 If it is determined the PreAmp Gain value is incorrect apply the desired up scale input and use...

Страница 66: ...ax Counts Technicians only The Raw Min Max Counts menus determine the range of 10 bit analog to digital A D converter counts that define 0 100 of full scale Raw Min A D counts create 0 readings and Ra...

Страница 67: ...upply 8 1 1 ARCTIC Smart Sensor Temperature Setpoint Option Both the O2 TOXIC and LEL Current channels see section 3 1 1 are capable of accepting ARCTIC Smart Sensors with 1 watt heater temperature co...

Страница 68: ...OLCT 200 User Manual 68 panel TXD LED see Figure 2 1 to also illuminate when the Marker is detected Important Optional 10 0234 RS 485 modbus port will not function if Marker TX LED menu must YES...

Страница 69: ...le LEL Pentane Cal 0 100 LEL 1 LEL 25 LEL 10 LEL 20 LEL 12 Combustible LEL Hydrogen Cal 0 100 LEL 1 LEL 25 LEL 10 LEL 20 LEL 9 2 Infrared IR Sensors Factory Default Settings Ref Gas Range Resolution C...

Страница 70: ...by sudden changes in temperature If there is an excessive change in the ambient temperature gas sample temperature or flow rate then the output signal will be monmentarily frozen Correct operation is...

Страница 71: ...sor can be disrupted by sudden changes in temperature If there is an excessive change in the ambient temperature gas sample temperature or flow rate then the output signal will be monmentarily frozen...

Страница 72: ...y monitor Ethylene gas The output of the IR sensor can be disrupted by sudden changes in temperature If there is an excessive change in the ambient temperature gas sample temperature or flow rate then...

Страница 73: ...renheit and Celsius temperatures For example it can be seen that at 80 F and 90 relative humidity RH a response is decreased from that in dry air by 20 This effect will be the same for any detectable...

Страница 74: ...g accuracy do not touch the lamp window with bare fingers You may touch the lamp body with clean fingers PID lamp cleaning kit P N 78105025 The vial of cleaning compound contains alumina CAS Number 13...

Страница 75: ...if it has been contaminated by toxic materials then show due care when disposing Re fitting PID pellet and lamp Caution Never refit a damaged lamp 1 Place the lamp inside the O ring seal in the pelle...

Страница 76: ...CO 0 300ppm 1ppm 100ppm 35ppm 70ppm 48 Hydrogen Sulfide H2S 0 30ppm 1ppm 25ppm 10ppm 20ppm 49 Hydrogen Sulfide H2S 0 100ppm 1ppm 25ppm 10ppm 20ppm 50 Hydrogen Chloride HCl 0 30ppm 0 1ppm 10ppm 5ppm 10...

Страница 77: ...e 0 100 LEL IR 78105007 26A 26 Ethylene 0 100 LEL IR 78105006 30A 30 VOC s PID 78105005 41A 41 Chlorine Cl2 0 10 0ppm EC 78105005 43A 43 Carbon Monoxide CO 0 100ppm EC 78105005 44A 44 Carbon Monoxide...

Страница 78: ...41 Chlorine Cl2 0 10 0ppm EC 78105005 43B 43 Carbon Monoxide CO 0 100ppm EC 78105005 44B 44 Carbon Monoxide CO 0 300ppm EC 78105005 48B 48 Hydrogen Sulfide H2S 0 30 0ppm EC 78105005 49B 49 Hydrogen S...

Страница 79: ...OLCT 200 User Manual 79...

Страница 80: ...Cedex FRANCE T l 33 0 3 21 60 80 80 Fax 33 0 3 21 60 80 00 Website http www oldhamgas com AMERICAS Tel 1 713 559 9280 Fax 1 281 292 2860 americas oldhamgas com ASIA PACIFIC Tel 86 21 3127 6373 Fax 86...

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