London Electronics INT2-AH Скачать руководство пользователя страница 40

40

RS232, RS422
RS485
plug-in option

Analogue
output
plug-in option

Al arm  relays.
Depending  on
the option, there
will be none, 2 or
4 relays fitted.

Upper  option board

Main board

How  to  install  option  boards

Where the product is intended for “UL” installations
removal or addition of option boards is not permitted.

!

Warning:

 

Disconnect

power  before  you  expose
the  rear  of  the  meter

If you want to open your meter to install or modify option boards, follow these steps...

1)

Switch off power to the meter and unplug all connectors.

2)

Unclip the front bezel. This is easier if you squeeze the top and bottom of
the case, near the front.

3)

Remove the small screws shown in the diagram.  If the meter doesn’t yet
have an output option  board, the top screw may not yet be fitted.

4)

Slide the electronic boards out throught the front  of the case. You can easily
separate the upper option  board from the
main board. We strongly suggest that you
use anti-static precautions to prevent
damage to the  semiconductors.

The board assemblies will look something like this...

The analogue output and RS232 or RS422 plug-in option boards are fixed to the upper option
board with white plastic pillars. You must apply a firm force when fitting or removing these
options.

Always be careful to connect the pins to sockets accurately. When reassembling, make sure
option boards are firmly fixed to the upper option board. When the boards are replaced in the
case, secure them again with the two small black screws.

Real Time
Clock option

Input board

Содержание INT2-AH

Страница 1: ...Variable brightness feature plus Daylight viewing option for use in direct sunlight Adjustable menu timeout delay to suit new and experienced users Choice of Basic or Advanced menu in standard model O...

Страница 2: ...foregoing warranty shall not apply to defects resulting from 1 Improper or inadequate maintenance by the buyer 2 Unauthorised modification or misuse 3 Operation outside the environmental specification...

Страница 3: ...put connections Front Buttons 28 Factory defaults 29 CalibrationAudit number 29 Signal Filtering Averaging 30 31 Last Digit rounding 32 Scale Factor adjustment 33 OffsetAdjustment 34 Menu Timeout adju...

Страница 4: ...rs fromelectric shock We designed this meter for Pollution Degree 2 environments only Power supplies to this equipment must have anti surge T fuses rated at 400mA for 230V supply 400mA for 110V supply...

Страница 5: ...hutdown periods you may have to to wait several weeks for an equivalent replacement or we may have no stock at the time you urgently need it You mayalso needto pay extra carriagecharges ifyou wanta fa...

Страница 6: ...240 VAC or 11 30VDC These meters are designed to mount into a protective enclosure which will protect users from contact with power and signal wiring Theseunits mustbe installedfully assembled and mus...

Страница 7: ...of meter U Bracket Bracket screw 1 of 2 Left side of meter case U Bracket Bracket screws U Bracket Bracket screws Slide the meter with gasket into the panel cutout Securing into the panel Re fit the...

Страница 8: ...mple using the 4 buttons Output functions include isolated 16 bit 4 20mA 0 10V 10 to 10V RS232 RS485 and up to 4 alarms with a wide choice of alarm functions Install the meters in a suitable protectiv...

Страница 9: ...sealed IP65 all round and is supplied with the meter in stalled for you to wire to via 3 cable glands It comes complete with SPC4 splashproof cover We also offer a dual version of this enclosure which...

Страница 10: ...5mm2 Tighten screw terminals to 7 0 lb in torque 0 8 Nm torque Cable insulation voltage rating Cables shall have an insulation voltage rating of at least 380V continuous Wire preparation We recommend...

Страница 11: ...onnectors and options Connectors may be present evenif outputoptionsarenot installed Refertoratinglabel toseeinstalledoptions Class II Installation Not used Fuse Switch Circuit breaker Power Customer...

Страница 12: ...ncelled Mixing destinations carelessly amongst the twisted pairs can actually worsen noise performance 3 The cable should be routed away from noisy wiring and devices such as power feeds frominverters...

Страница 13: ...several displays to several shunts please be sure to use one twisted pair for each display and shunt Do NOT use a wire from one pair for signal positive and a wire from another pair for signal negativ...

Страница 14: ...Easy orAdvanced mode How to choose menu mode Set1 Set2 Output Alarms Digit OK Max Min Reset Lockout Switch must be OFF Press together briefly Set1 Set2 Output Alarms Digit OK Max Min Reset Press brie...

Страница 15: ...witch must be OFF Press together briefly Set1 Set2 Output Alarms Digit OK Max Min Reset Display shows UI Eng Default for User Interface English or UI FrA for User Interface French 1 2 3 Set1 Set2 Outp...

Страница 16: ...e Daylight Viewing version has suffix DLV in its part number This feature is available in Easy and Advanced Modes OFF Circuit board ON Display Calibration You can set the display to accumulate in a ti...

Страница 17: ...in the value the display should show for each signal level How to choose a calibration method Display shows CAL Src then dIreCt or thEor Default Set1 Set2 Output Alarms Digit OK Max Min Reset Press to...

Страница 18: ...1 Set2 Output Alarms Digit OK Max Min Reset Apply the highest calibration signal you can achieve ideally 100 of system capacity You can use less but you will get better accuracy with higher signals No...

Страница 19: ...Max Min Reset Lockout Switch must be OFF Set1 Set2 Output Alarms Digit OK Max Min Reset Apply the lowest calibration signal you can achieve ideally 0 of system capacity Now press OK Set1 Set2 Output...

Страница 20: ...Alarms Digit OK Max Min Reset If the display shows Lin OFF press Set2 button briefly so that the display shows Lin On then press OK Set1 Set2 Output Alarms Digit OK Max Min Reset 1 2 3 4 Set1 Set2 Out...

Страница 21: ...button until the display is set as required Press OK when done The display will show Add Pt Press OK if you want toAdd another calibration point you will repeat the previ ous steps each time incremen...

Страница 22: ...your input is 0 60mV Set1 Set2 Output Alarms Digit OK Max Min Reset Press to accept Set1 Set2 Output Alarms Digit OK Max Min Reset Display now shows rd Hi briefly You can now specify the maximum readi...

Страница 23: ...e low reading Use DIGIT to select each digit in turn and the UP or DOWN arrow to increase or decrease each digit s value as re quired eg set 000 000 if your display range is 0 to 100 000 Theoretical C...

Страница 24: ...on briefly so that the display shows Lin On then press OK Set1 Set2 Output Alarms Digit OK Max Min Reset 1 2 3 4 The display will show In 00 followed by an editing screen Here you can enter your first...

Страница 25: ...utton and increase or decrease each digit s value using the UP or DOWN button until the display is set as required Press OK when done The display will show Add Pt Press OK if you want toAdd another ca...

Страница 26: ...counts The corrected value is stored in non volatile memory so that any drift trend will be re ap plied after you have switched off the meter Lockout Switch must be OFF Press together briefly Set1 Set...

Страница 27: ...ction for Contact Closure 1 After you have set CC 1 you will get the prompt CC 2 to allow you to set Contact Closure 2 function and when you have set CC 2 you will get the prompt CC 3 to allow you to...

Страница 28: ...this enables front panel Tare Peak Valley and Reset buttons also Or simply link NPN could be opto isolators if you need the logic control lines to be galvanically isolated from the input signal tare...

Страница 29: ...one This feature is available in Easy and Advanced Modes Display shows defs n Defaults no Press the DOWN button to change the display to defs y Defaults Yes if you want to return to default conditions...

Страница 30: ...econds Set1 Set2 Output Alarms Digit OK Max Min Reset Display shows FIL XX X where XX X is the time constant in seconds Use the UP or DOWN button to increase or decrease this value Default FIl 00 0 Se...

Страница 31: ...is less than 10 per con version Guidance For noisy systems increase the Filter Jump value up to a maximumof 99 Choose a value which gives a good compromise between filtering and response speed For re...

Страница 32: ...d up to the nearest 1 no rounding 2 5 10 20 or 50 Lockout Switch must be OFF Press 3 seconds Set1 Set2 Output Alarms Digit OK Max Min Reset Press repeatedly until you see LSt X where X is either 1 2 5...

Страница 33: ...if you set the SCALEto 3600 Lockout Switch must be OFF Press 3 seconds Set1 Set2 Output Alarms Digit OK Max Min Reset Press repeatedly until you see SCALE followed by the existing scale factor Defaul...

Страница 34: ...2 Output Alarms Digit OK Max Min Reset Press repeatedly until you see OFFSEt followed by the existing offset value Default is 000 000 1 2 3 4 Set1 Set2 Output Alarms Digit OK Max Min Reset Use DIGIT b...

Страница 35: ...OFF Press together briefly Set1 Set2 Output Alarms Digit OK Max Min Reset Press repeatedly until you see dLAY XX where XX is the delay in seconds Choices are dLAy 1 0 dLAy 20 dLAy 30 dLAy 60 default 1...

Страница 36: ...put Alarms Digit OK Max Min Reset Press OK button briefly and repeatedly until you see rEV d 0 Default or rEV d 1 Set1 Set2 Output Alarms Digit OK Max Min Reset Press briefly to toggle 1 2 3 4 Set1 Se...

Страница 37: ...is pressed Lockout Switch must be OFF Press together briefly Set1 Set2 Output Alarms Digit OK Max Min Reset Press OK button briefly and repeatedly until you see boot 0 or boot 1 or boot 2 or boot 3 d...

Страница 38: ...n 4 Press the Up arrow to change display to defs Y and press OK 5 If you want all channels to share a common setting eg calibration do that setting now 6 When you want to do separate settings for eac...

Страница 39: ...hat the signal level at the input to the meter on terminals 3 and 4 is equal or less than 100mV DC 2 If the measurements above were satisfactory the problem may be caused by the scaling being too sens...

Страница 40: ...n in the diagram If the meter doesn t yet have an output option board the top screw may not yet be fitted 4 Slide the electronic boards out throught the front of the case You can easily separate the u...

Страница 41: ...o dispose of it It must not be thrown away with general rubbish If you are unable to dispose of this item locally you may send it to us for recycling Conditions 1 We will only accept items of our manu...

Страница 42: ...gohm Accuracy 0 05 of range Span tempco 25 ppm Degree Celsius Zero Tempco 30 ppm Degree Celsius Allow 30 minutes for the unit to reach thermal equilibrium Filtering smoothing Selectable time constants...

Страница 43: ...t revised to improve clarity and segregate easy from advanced menu functions Optional outputs now described in their own dedicated manuals DIN Rail mounting option added Cabling guidance added 3 March...

Страница 44: ...ncludes relay output wiring All signal cabling shall be screened The screen shall only be terminated to the power earth terminal at the meter end of the cable Declared as true and correct for and on b...

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