Fiso Nortech EasyGrid LT User Manual
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Fiso Nortech EasyGrid LT User Manual

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EasyGrid LT User Guide
EasyGrid LT
(EGD-LT)
User Guide
MAN-00095

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Summary of Contents for Fiso Nortech EasyGrid LT

  • Page 1 EasyGrid LT User Guide EasyGrid LT (EGD-LT) User Guide MAN-00095...
  • Page 2 Information provided by FISO is believed to be accurate and reliable. However, no responsibility is assumed by FISO for its use or for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent rights of FISO.

  • Page 3: Table Of Contents

    EasyGrid LT User Guide 1 Table of Content Product Certification ........................1 CE Information ............................. 1 Independent Laboratory Testing ......................1 Declaration of conformity........................2 Safety Information .......................... 3 Safety Conventions ..........................3 Safety Information ..........................3 Unpacking and Inspection ........................4 Hardware Configuration ........................
  • Page 4 EasyGrid LT User Guide Exclusions ............................34 Certification ............................34 Transportation ........................... 35 FISO Service Center ........................... 35 Product disposal ..........................35...

  • Page 5: Product Certification

    EasyGrid LT User Guide 2 Product Certification CE Information Electronic test equipment is subject to the EMC Directive in the European Union. The EN61326 standard prescribes both emission and immunity requirements for laboratory, measurement, and control equipment. This unit has been tested and found to comply with the limits for a Class B digital device.

  • Page 6: Declaration Of Conformity

    EasyGrid LT User Guide Declaration of conformity FISO Technologies Inc located at 500, Saint-Jean-Baptiste Ave., Suite 195, Quebec, QC, Canada G2E 5R9 Product description: Fiber optic thermometer Model number(s): EasyGrid LT Product category: Electrical equipment for measurement, control and laboratory use.

  • Page 7: Safety Information

    THIS PRODUCT IS NOT DESIGNED FOR USE IN LIFE SUPPORT OR CRITICAL APPLICATIONS. In no case will FISO be liable to the buyer, or to any third parties, for any consequential damage or indirect damage which is caused by product failure, malfunction, or any other problem.

  • Page 8: Unpacking And Inspection

    If the shipping carton is not damaged, carefully remove and identify all of the components listed below. Contact FISO or your local representative if any of the components are missing. We recommend you save the shipping carton for future storage or transportation.

  • Page 9: Hardware Configuration

    EasyGrid LT User Guide 4 Hardware Configuration Introducing the EasyGrid LT The EasyGrid LT fiber optic temperature measurement system is designed for real-time monitoring of transformer hotspot. It can be configured to have 2, 4, 6 or 8 channels. Monitors can be daisy chained to a limit of 32 units, which give the possibility to have up to 256 channels in a single system.

  • Page 10: Grounding Terminal

    EasyGrid LT User Guide Grounding Terminal This terminal provides an additional level of immunity against electromagnetic interferences. It should always be grounded trough a low inductive conductor (we suggest multiple braid 8 AWG copper wire) to insure adequate protection. Powering the EasyGrid LT The EasyGrid LT requires a 24 volts DC supply.

  • Page 11: Optical Connector

    EasyGrid LT User Guide Optical Connector There can be up to 8 optical channels on each EasyGrid LT. Each channel is designed to be connected with a fibre Optic extension, an EasyThrough and a Fiber Optic sensor. CAUTION Use care in handling fiber optic connectors. Always clean the fiber tip prior to insertion into the connector for optimum performance.

  • Page 12: Lcd Display

    EasyGrid LT User Guide LCD Display The LCD display allows visualization of the key information directly on the unit. The main display is showing the real-time temperature values. By pressing the MAIN MENU/SELECT Button, at the center of the Keypad, the user can scroll all the other available screens. The EasyGrid LT LCD supports two languages: English Chinese...

  • Page 13: Display Description

    EasyGrid LT User Guide Led Output: Displays/changes the active led output mode (Sensor or Relay/Alarm). Nortech Address: Displays/changes the Nortech protocol Node ID. Modbus Address: Displays/changes the Modbus protocol Node ID. Modbus Type: Displays/changes the Modbus protocol communication type. Modbus Speed: Displays/changes the Modbus protocol communication speed. Factory Default: Allows reset to factory original configuration, it also restores the factory reference for all channels.
  • Page 14 EasyGrid LT User Guide Temperature Description Temperature ### : Channel is not yet ready 1 → 2 0 . 1 L o w 20.1 : Channel temperature value - 1 2 . 0 1 0 9 . 2 Error : Channel is in error (no signal or bad signal) E r r o r - 5 .
  • Page 15 EasyGrid LT User Guide Diagnostic Temp Description ### : Channel is not yet ready 20.1 : Channel temperature value Error : Channel is in error (no signal or bad signal) Calib : Channel bad or missing calibration Low : Channel value is below calibration (< -40 °C) High : Channel value is over calibration (>...
  • Page 16 EasyGrid LT User Guide Event Log (when available) → Event Log Execute clear action if confirm into the next window E v e n t L o g 1 0 . 0 4 9 % Description 1 2 9 6 6 1 2 9 0 2 4 10.049 % : Log usage in percent C l e a r...
  • Page 17 EasyGrid LT User Guide Led Output → Execute led output change action Description Alarm : Channel led is displaying alarm state Led Output Led Green : Alarm conditions are not met • L e d O u t p u t •...
  • Page 18 Channel Enable is true • Channel Offset is equal to 0 • Channel Reference are the one set at the factory (FISO) • Analog Output Minimum is equal to -40.0 °C • Analog Output Maximum is equal to 225.0 °C...
  • Page 19 N o r t e c h Description S p e e d 1 1 5 2 0 0 Type : Nortech (Fiso proprietary protocol), Modbus RTU protocol or A d d r e s s Modbus ASCII protocol Communication Info...
  • Page 20 EasyGrid LT User Guide Confirmation ← No : Cancel the current action Confirmation → C o n f i r m Yes : Confirm the current action ← Y e s → Description Confirmation required for certain action execution...

  • Page 21: Navigation Flow Chart

    EasyGrid LT User Guide Navigation Flow chart...

  • Page 22: Led Indicators

    Steady System Error or at least one sensor is Faulty When the LED blinks red, an error situation related to the unit has occurred. Refer to the trouble shooting section or contact FISO technical support. 4.10.2 Communication Status LED The different LED states for communication are:...

  • Page 23: Relay/Alarm Status Led

    EasyGrid LT User Guide 4.10.3 Relay/Alarm Status LED When the Alarm LED Output mode is selected, the REL LED is green. Each numbered LED corresponds to a relay. For example, LED 1 corresponds to relay 1, LED 2 corresponds to relay 2 and so on. The different LED states are: Color State...

  • Page 24: Analog Outputs

    EasyGrid LT User Guide 4.11 Analog Outputs Each analog output offers a standard 4-20 mA factory configuration. Analog outputs provide a means of transmitting temperature data directly from the unit to an external data-gathering system or monitoring equipment. The EasyGrid LT provides one analog output for each temperature channel present in the unit.

  • Page 25: Rs-485/Rs-422 Ports

    Must be Left Left: No pull down resistor FISO recommends shielded, twisted pair wiring, 24 AWG with 120Ω line impedance to connect the RS- 485 interface to the network. FISO also recommends biasing the RS-485 BUS using pull-down and pull-up 1 KΩ resistors. Biasing the RS-485 BUS line will prevent unknown voltage on these lines (RS-485 BUS floating).
  • Page 26 EasyGrid LT User Guide You must identify the host device on the RS-485 network and then proceed with its 485 BUS line biasing, as figured above. Two termination resistors must be installed and have the same characteristic impedance value as the twisted wire used on the 485 network.

  • Page 27: Physical Dimensions

    EasyGrid LT User Guide 4.13 Physical dimensions...

  • Page 28: Wiring Information

    EasyGrid LT User Guide 5 Wiring information General The following section is a recommendation, you must conform with your local electrical code. Use copper wire, solid or stranded. Copper wire ferrules can be used with stranded conductors. Terminal Part number Manufacturer Recommended Recommended...

  • Page 29: Power

    8 AWG (8mm2) copper conductors required for grounding the EasyGrid LT for electromagnetic interference (EMI) purposes. FISO recommends Earth strap AMP# 1337670-3 or Crimp terminal AMP ring tongue terminal # 8-33460-2. M5 nut Torque recommendation for system ground is 2Nm (18lb-in).

  • Page 30: Analog Output

    The EasyGrid LT 4-20mA outputs are of type 3L, non-isolated, according to ISA-50.1-1982(R1992) The power supplies for the 4-20mA output, is internally connected in the EasyGrid LT . Because of that feature, only two wires are required to realise the connection to the receiver. FISO recommends a shielded twisted pair.

  • Page 31: System Relay

    EasyGrid LT User Guide System relay The EasyGrid LT System relay tells you if the EasyGrid LT and his sensors are working properly. This relay is of failsafe type. Failsafe operation means that when in alarm, the relay contacts are in their "normal," de-energized, or "shelf-state"...
  • Page 32 The EasyGrid LT RS-422/485 communication port is half duplex. FISO recommends the use of a two shielded twisted pair cable for RS-485 mode and a three shielded twisted pair cable for RS-422. The extra pair will be used for ground.
  • Page 33 EasyGrid LT User Guide...

  • Page 34: Relays

    If you need a specific relay programmed for failsafe operation you could do so, but keep in mind that each relay coil activated dissipate 0.5W (4W if all the 8 relays are in failsafe mode). FISO recommends setting for failsafe operation only the required relay.

  • Page 35: Nortech Client Software

    EasyGrid LT User Guide 6 Nortech Client Software Please refer to the Nortech Client software guide included on the CD.

  • Page 36: Troubleshooting

    7 Troubleshooting Solving Common Problems The following troubleshooting guide was designed to help you solve technical problems. If the unit has to be returned for repair, or if you need any assistance, please contact FISO Customer Support. Symptom Possible cause...

  • Page 37: Diagnostics

    Damage Sensor Tip • 7.2.2 Signal The “Signal” value shall be used when further troubleshooting is required. These values shall be given to the FISO representative assisting you in the process. Signal > 88 Excellent 80 < Signal < 88 Good Signal <...

  • Page 38: Warranty And Service

    Exclusions FISO reserves the right to make changes in the design or construction of any of its products at any time without incurring obligation to make any changes on units previously purchased. Accessories, including but not limited to fuses, pilot lamps, and batteries used with FISO products are not covered by this warranty.
  • Page 39 Telephone: (418) 688-8065 500 St-Jean-Baptiste Avenue, Suite 195 Fax: (418) 688-8067 Quebec City (Quebec) Email: support@FISO.com CANADA G2E 5R9 Product disposal Please refer to your local authorities or send back the device to your local FISO distributor. FISO, a Nova Metrix company...

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