Adapter Kit - QSI Electronics to G2 Meter Installation Instructions

Transcription

1 Adapter Kit - QSI Electronics to G2 Meter Installation Instructions These installation instructions cover the adapter kit installation of the QSI1, QSI2 and QSI3 versions of communications electronics to G2 Meters. The instructions are the same for QSI versions with or without a display. Check the contents of your kit using the list below as a reference. NOTE: The kit was packaged with the coil pickup in the unseated position to prevent coil damage during shipping. The coil has a foam spacer attached. Remove the liner from the foam spacer, exposing the adhesive layer, and seat the coil/spacer combination in its recess on the adapter (see Figure 1). Make sure the power to your G2 meter is disconnected. INSTRUCTIONS 1. Remove any attached product, if it exists, from the top of your G2 meter. It will be replaced with the adapter kit components. 2. Remove the (6) #8-16 x 3/4 screws attaching the kit cover plate to the adapter and carefully separate. The (2) wires connecting the QSI PC board to the screw terminal of the pick-up circuit board are long enough to allow separation of parts. The wires may be disconnected from the screw terminal if necessary. The wires are non-polarized and may be connected to either screw 09/2017 of the screw terminal. Do not damage the seal between the two components (see Figure 1). 3. Install the gasket received with the kit on the bottom of the adapter. Mount the adapter to the G2 meter, seating the pick-up coil in the meter recess. Secure adapter with (4) screws provided with the kit. Tighten screws. NOTE: Use #4-40 screws for metallic meters or #4-20 Plastite screws for PVDF meters. 4. Make sure the seal is in place on top of the adapter prior to reattaching (if previously disconnected) the (2) wires to the screw terminal of the pick-up circuit board. 5. To route external power and/or electronic cables to the QSI PC board screw terminals, prepare the cover plate by removing the mushroom plug from each strain relief you intend to use. The strain relief will accommodate cable sizes of 0.11 (0.28 cm) through 0.26 (0.66 cm) diameter Rev A

2 6. Make sure the power is disconnected from external cables before beginning this step. Route external cables through the strain reliefs, and then tighten the dome nut securely around the cable to provide an environmental seal. 7. Connect cable wires to the QSI PC board screw terminals per the wiring diagram in these instructions. 8. Mount the cover plate on the adapter making sure the seal is seated properly between them. Replace the (6) previously removed screws to secure the cover plate to the adapter. Tighten screws. (6) SCREWS, #8-16 X 3/4 COVER PLATE Q09 DISPLAY (SHOWN) (OR) NO DISIPLAY (4) MUSHROOM PLUGS (2) WIRES THAT CONNECTS TO SCREW TERMINAL SEAL FOAM SPACER (UNDER COIL) ADAPTER SCREW TERMINAL PICK-UP COIL PICK-UP CIRCUIT BOARD GASKET (4) SCREWS (#4-40 X 7/8 FOR METALLIC METERS) (#4-20 X 7/8 PLASTITE FOR PVDF METERS) Figure 1 KIT CONTENTS (1) Completely assembled QSI (1) Gasket module (with or without a display). (1) Instruction sheet. (4) #4-40 x 7/8 Fillister Head (1) QSI Owner s manual. Screws. (For metallic G2) (4) #4-20 x 7/8 Fillister Head Plastite Screws. (For PVDF G2) (1) Q09 Owner s manual (if kit includes Q09 display). 2

3 TERMINAL CONNECTIONS CHART PT100-Red PT100-White Sensor #1 PT100-Blue PT100-Red PT100-White Sensor #2 PT100-Blue RS RS RS-485 GND +5v RS Pulse Input - Power mA GPI Sensor Pulse Output Figure 2 TEMP SENSOR PT100-Red Sensor VCC Output PT100-White Input High Side PT100-Blue Input Return RS-485 (Galvanically Isolated) RS485 (+) Positive Signal RS485 (-) Negative Signal RS485 GND Circuit Ground* PULSE INPUT 5VDC output to pow- +5V er external sensor Digital Pulse Fre- (+) quency Input, up to 3kHz (-) Digital Pulse Return 4-20mA (Galvanically Isolated) 4 to 20mA current (+) loop - current in to transmitter 4 to 20mA current (-) loop - current out of transmitter* *NOTE: It is not recommended to connect isolated ground connections together or to board common. Low level sine wave input Low level sine wave input GPI SENSOR Ribbon cable connection to GPI custom sensor designs PULSE OUTPUT (Galvanically Isolated) Pulse Output return (-) current* Pulse Output frequency output. This (+) is a current sinking open collector output.*** POWER INPUT 12-36V AC or DC (-) Input A** 12-36V AC or DC (+) Input B** **NOTE: Polarity of voltage for AC/ DC is not important. However an earth ground isolated power supply is required to prevent earth ground loop currents and ground fault conditions. ***NOTE: This output may require an external pull up resistor if interfacing equipment does not include one. 3

4 S QSI VERSION 1 PC BOARD RS-485 BTU RTDs RS-485 Pulse Out & B (Non-polarized wires) Power In Figure 3 ISOLATED POWER SUPPLY 12-36V AC/DC Inputs: Temp Sensors, Variable Reluctance, Pickup Coil Outputs: RS-485, Pulse Output Power (-) Power (+) QSI Version 1 Pulse Out (+) Pulse Out (-) Open Collector Pulse Input Unpowered Pickup Coil PT100 (Red) PT100 (White) PT100 (Blue) PT100 (Red) PT100 (White) PT100 (Blue) RS485 (+) RS485 (-) RS485 (GND) *R 2...=120Ω R 2 *Shield RS485 (+) RS485 (-) RS485 (GND) Figure 4 4

5 S QSI VERSION 2 PC BOARD Pulse In BTU RTDs & B (Non-polarized wires) Pulse Out Power In Figure 5 ISOLATED POWER SUPPLY 12-36V AC/DC Input: Temp Sensors, Variable Reluctance, Pickup Coil Output: Pulse Output Power (-) QSI Version 2 Unpowered Pickup Coil Power (+) Pulse Out (+) Pulse Out (-) Open Collector Pulse Input PT100 (Red) PT100 (White) PT100 (Blue) PT100 (Red) PT100 (White) PT100 (Blue) Figure 6 5

6 S QSI VERSION 3 PC BOARD 4-20mA & B (Non-polarized wires) 4-20mA Pulse Out Power In Figure mA and Pulse Outputs with Built-in Power Supply Inputs: Standard Remote Sensor (Variable Reluctance Pickup Coil) Outputs:, 4-20mA Sensing, Built-in Loop Power Supply Inputs Isolated Outputs ISOLATED POWER SUPPLY 12-36V AC/DC Power (-) QSI Version 3 Pulse Out (+) Pulse Out (-) Open Collector Power (+) Unpowered Pickup Coil 4-20mA (+) Min. V = 8.5 Max. V = mA (-) Minimum signal amplitutde required for normal operation approx. 15mV P-P Recommended cable type - twisted pair with shield Recommended maximum cable length - 20ft. Caution: When reassembling the cover plate, make sure the enclosure seal is not crimped or twisted. Do not over-tighten screws (hand-tighten only). Figure 8 6

7 S without Built-in Power Supply mA Output with Separate Power Supply ISOLATED POWER SUPPLY 12-36V AC/DC Power (-) QSI Version 3 Power (+) 4-20mA (+) (Current) Loop (-) 4-20mA (-) (Current) (Current) Loop (+) Isolated Power Supply Figure 9 Min. V = 8.5 Max. V = 36 7

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