London Electronics EasyReader ER4P Скачать руководство пользователя страница 7

Getting Started

First,  check that the display will suit your application and the available power source (either 95-265
VAC or 11-30 VDC).

If you asked us to configure the display for you, please check that the scaling and  settings agree
with your requirements.

We fully tested and calibrated your display for you, but a pre-installation  test may be useful to check
that everything works as needed.

Remove the screws which hold the rear panel in place.

Feed the signal and power cables through the cable glands.

Connect the signal and power cables to the appropriate screw terminal connectors.  See our
connection drawing to check that you are using the correct terminals.

Check, before switching on, that the power  is suitable  for the unit.

Switch on, and the display should show ‘EPX.X’ for a second or two.  (where EPX.X  is the software
version).  Units with custom software will have a different prompt.

Next,  ‘C. XX’ will appear  for a second or two. The XX value increases each time a calibration is
completed. The display should then show a steady reading relating to zero input signal; for the
factory default 4-20mA scaling, this should be between -24.9 and -25.1.

4

Содержание EasyReader ER4P

Страница 1: ...ation Rear case screws please note The rear panel is held in place with finger screws which only need to be gently tightened Do not use tools to tighten or loosen the screws as this could cause damage...

Страница 2: ......

Страница 3: ...t position selection 7 8 11 Declaration of Conformity 17 Filter time constant selection 7 8 Front Panel controls 11 General Description 3 Getting Started 4 Introduction 1 Input connection examples 5 L...

Страница 4: ...ent replacement Or we may have no stock at the time you urgently need it You may also need to pay extra carriage charges if you want a fast guaranteed courier service Warranty repairs or replacements...

Страница 5: ...r 110V supply or 1A for DC supplies in the range 11 30VDC Check that the model number and supply voltage suit your application before you install the meter Don t touch any circuitry after you have con...

Страница 6: ...the meter in engineering units to give up to 1999 or 9 999 display range with selectable decimal point position You can either scale the meter theoretically using stored calibration figures or direct...

Страница 7: ...cables through the cable glands Connect the signal and power cables to the appropriate screw terminal connectors See our connection drawing to check that you are using the correct terminals Check bef...

Страница 8: ...arry electrical noise likely to interfere with your measurement Input Connection Examples Loop powered 2 wire 4 20mA transmitter I P 4 20mA from active source Direct 0 10V I P 0 10V from active source...

Страница 9: ...e meter either from a calibrator or a sensor in the system This is known as the DIRECT calibration method Signals must be stable Connect the calibration mode terminal to common to enable this method T...

Страница 10: ...been selected When correct press the OK button 2 How to set ZERO Press the ZERO button for 3 seconds You ll see In LO briefly then a value with one digit brighter than the other This is 4 000 for a 4...

Страница 11: ...ow you to move the decimal point with the UP DOWN buttons 4 When correctly set press OK 2 How to calibrate Zero 1 Apply the Lowest cal signal and ensure it is steady before proceeding 2 Press the ZERO...

Страница 12: ...ESETinput Tare Command Press the front panel tare switch for more than 2 seconds or make a momentary contact closure to the TARE terminal and Common if you want to force the display to 0 Following rea...

Страница 13: ...MODE A contact closure which selects either direct or theoretical calibration method Contact open Theoretical calibration Contact closed Direct calibration TARE Contact closure resets the displayed v...

Страница 14: ...e unlocked ZERO Press for more than 3 seconds Lets you adjust the meter zero calibration SPAN d p Press for more than 3 seconds Lets you adjust the meter span calibration decimal point position filter...

Страница 15: ...eight 102mm A 57mm high model is also available Display Rangability Fully digitally scalable for ZERO and SPAN readings anywhere in the range 1999 to 9999 with selectable decimal point positon Viewing...

Страница 16: ...if the wall material is not suitable to take screws directly Route cables neatly away from the display If the cables may become damaged in the environment protect them with suitable conduit or trunkin...

Страница 17: ...ou may need to use screw plugs or other screw accessories if the material is not suitable to take screws directly Mount the brackets first then fit the display to the brackets Route cables neatly away...

Страница 18: ...Record of Revisions 16 December 2003 Product released 25 March 2004 Added Wiring and Jumper record sheet to page 16 8 November 2005 Added side view for wall mounting case on page 13 15...

Страница 19: ...16 Wiring and jumper record For future reference record all the jumper positions and wiring colours you used in your installation...

Страница 20: ...rs covered by this certificate must be installed in adherence to the following conditions Signal cabling shall be routed separately to power carrying cabling includes relay output wiring All signal ca...

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