the ILITS-3 user manual
Contents
1. minute warm up time has been observed the displays should be zeroed To do this ensure that the gas supply is disconnected or the regulator is set to minimum Page 6 and there is no product connected to the output of the test set Press the zero button on each display and hold for 3 seconds Any offset on the display will be removed 4 1 2 Flow Command Setpoint The flow control may be adjusted but changing the flow setpoint This is achieved by pressing the up or down arrows as appropriate The display will show the setpoint and the actual flow on a two line display The Flow mode can be changed between Open Closed and Auto by using the override key Auto Press Overide then Auto it s the same key Close Press Overide then Close Note the display now shows CLOSE Open Press Overide the Open Note the display shows OPEN It is usual that the flow controller may take a few moments to commence control 4 2 Rear Panel Controls see fig 1 pg 4 4 2 1 Power Switch The mains switch is located next to the mains inlet cord 0 off 1 on 4 2 2 Fuse This is located next to the mains cord socket The mains cord must be removed in order to withdraw the fuse compartment Do Not attempt to open the fuse compartment with the mains cord attached Always replace the fuse with the correct type and rating 4 2 3 Regulator The inlet pressure regulator is located at the rear of the unit To adjust this regulator2. turn the knob clockwise to increase the pressure and anti clockwise to reduce the pressure Observe the dial gauge on the rear panel to check the inlet pressure If the knob fails to move easily it may be locked pull the knob upward to unlock press downward to lock It is recommended that a pressure of 1 5 bar is set for full scale flow A pressure of this value will help to protect the internal pressure transducer from damage Page 7 Section 5 Service and Calibration 5 1 Service There are no user serviceable parts inside the instruments Should any difficulties be encountered in the use of the test set it is recommended that you contact Chell Instruments Ltd for advice and instructions 5 2 Calibration Calibration is recommended on an annual basis and Chell Instruments Ltd Provides a fully traceable facility for this purpose 5 3 Adjustment There are no user adjustments in the instrument indeed the presence of lethal voltages within the instrument means that the user is strictly forbidden from removing the covers without invalidating Chell s obligations under both Warranty and COSSH 5 4 Cleaning A dirty instrument may be wiped clean with a soft cloth that has been sprayed with a proprietary foaming cleaner then wiped dry immediately A Under no circumstances should the instrument be wetted directly or left damp Page 8
3. Chell Instruments Ltd Folgate House Folgate Road North Walsham Norfolk ENGLAND Chell NR28 OAJ 44 1692 500555 ILITS 3 Impulse Line Integrity Test Set INSTALLATION AND OPERATING MANUAL e mail service chell co uk Visit the Chell website at http www chell co uk 900107 1 1 Please read this manual carefully before using the instrument AN Use of this equipment in a manner not specified in this manual may impair the user s protection Section 1 Section 2 Section 3 Section 4 Section 5 INDEX General Description Specification Installation and Interconnections Operation Service and Calibration Chell Document No 900107 Issue 1 1 ECO No 0537 Date 17 Sep 2008 Chell s policy of continuously updating and improving products means that this manual may contain minor differences in specification components and circuit design from the actual instrument supplied Page 1 Section 1 General Description The Impulse Line Integrity Test Set ILITS 3 is manufactured to allow testing of the reactor gas pressure measurement impulse lines Testing is done by injecting a constant known gas flow though a line and measuring the pressure head required to maintain this flow The test set comprises an adjustable regulator on the rear panel to set the input pressure to the internal mass flow controller The output of the mass flow controller is used to pass gas into the line to be tested This o
4. suspected to be wet or near water faulty or partially assembled Caution Failure to follow advise given in this manual and or on the product may result in equipment damage personal injury or death Page 5 Section 4 4 0 Operation of the instrument Before switching on the power ensure that the correct mains supply voltage is connected After power on the display will light The actual value displayed will depend on the output of the transducer In an overrange condition the display flashes It is recommended that gas supply and test product not be connected until the test set is ready for use Allow 30 minutes warm up before using for accurate measurement and control If there is a probability that the load to be tested is completely blocked or blanked the flow rate must be set to a low value initially with the regulator set to no more than 1 5 bar Failure to follow this procedure may result in permanent damage to the pressure sensor Once the status of the load has been ascertained normal settings can be applied Warning 4 1 Front Panel Controls More detailed information may be found in the accompanying CCD100 user manual Impulse Line Integrity Test Set ILITS 3 m Ene ea a gt ee Fe EX 9 Chell Instrument Owe Calor wie ese Setpoint 3 e _CcD100 fig 2 Front Panel 4 1 1 Zero Trim Before the test set is used and after the 30
5. utput port pressure is monitored by an internal capacitance manometer measuring gauge pressure Both pressure head and mass flow are clearly displayed on the bright front panel displays The test set is fitted with an adjustable carry handle desk stand to allow a degree of portability Page 2 Section 2 2 0 Specification 2 1 Mechanical Package Size enclosure Mounting Weight 2 2 Power Supply Line voltage Line frequency Consumption Protection Free standing desktop case with prop stand handle H 220mm W 360mm D 490 mm depth exc adapters Free standing 14 Kg 240V AC or 120V AC Factory Set 50 60 Hz less than 60 VA 1 6A anti surge fuse 20x5mm 2 3 Operating conditions Operating temperature range 5 C to 50 C 40 F to 122 F Storage temperature range 20 C to 70 C 40 F to 158 F Maximum Relative humidity 95 at 50 C non condensing Warm up time to full accuracy 30 minutes assumes unit already stabilised at ambient 2 4 Pneumatic Interface Supply Pressure 3 7 bar g Type Clean Dry preferred but the unit is fitted with an external filter regulator Fitting Push in type fitting to accept 12mm OD plastic tube Ensure that the tube used is compatible with this SMC Pneumatics fitting Outlet Flow Controlled air flow Measured at 1 FS error Flow range 150 slpm Pressure Measured at 0 3 reading error Pressure range 1000mb g WARNING Damage ma
6. y result if the pressure transducer is exposed to pressure exceeding 1600 mb g Page 3 Section 3 3 0 Installation and Interconnections The instrument should operate free standing on a flat level surface such as a bench top Note that the instrument must always be located in such a way as to enable adequate air circulation about the unit fig 1 Rear Panel Services required by the test set are Mains Power 110 120 VAC 50 60 Hz An IEC 320 type socket lead is required to connect The mains voltage is factory set and a user should not attempt modification Please consult Chell Instruments Ltd if you require the voltage setting to be changed Air Supply 12mm OD plastic tubing Polyurethane or nylon is recommended Metal tubing or adapters are not suitable unless it is specifically designed for use with the SMC range of push fit connections The unit should be powered for at least 30 minutes before use to obtain full accuracy Never place an obstruction or blanking plug in the outlet fitting of the test set This may result in equipment damage or personal injury Page 4 The user can gain access to an analogue retransmission of the displayed values via the interface connector Interface socket Pin out 9 Way D Type Pressure Signal All other pins Not Connected Check the Mains Supply is correct and suitable before connection This equipment must be properly earthed Do not use this equipment if it is or is
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