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DayTronic 3760 Instruction Manual

Dc voltage conditioner
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MODEL
3760P
DC VOLTAGE CONDITIONER
INSTRUCTION MANUAL
3700
Instrument Series
SB.1.1

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  • Page 1 SB.1.1 MODEL 3760P DC VOLTAGE CONDITIONER INSTRUCTION MANUAL 3700 Instrument Series...
  • Page 2 WARNING Death, serious injury, or fire hazard could result from improper connection of this instrument. Read and understand this manual before connecting this instrument. Follow all installation and operating instructions while using this instrument. Connection of this instrument must be performed in compliance with the National Electrical Code (ANSI/NFPA 70-2014) of USA and any additional safety requirements applicable to your installation.
  • Page 3 WARNUNG Der falsche Anschluß dieses Gerätes kann Tod, schwere Verletzungen oder Feuer verursachen. Bevor Sie dieses Instrument anschließen, müssen Sie die Anleitung lesen und verstanden haben. Bei der Verwendung dieses Instruments müssen alle Installation- und Betriebsanweisungen beachtet werden. Der Anschluß dieses Instruments muß in Übereinstimmung mit den nationalen Bestimmungen für Elektrizität (ANSI/NFPA 70- 2014) der Vereinigten Staaten, sowie allen weiteren, in Ihrem Fall anwendbaren Sicherheitsbestimmungen, vorgenommen werden.

  • Page 4: Medidas De Seguridad

    Medidas de seguridad Las medidas de seguridad siguientes deberán observarse cuando se realice cualquier tipo de conexión al instrumento. ο Cuando se haga conexiones a circuitos eléctricos o a equipo de activación por pulso, deberá abrirse sus respectivas cajas de seguridad. NO deberá hacerse ninguna conexión del instrumento en líneas eléctricas bajo tensión. ο...

  • Page 5: Standard Accessories

    Standard Accessories The following table lists the 3700 standard accessories. Standard accessories Description Part Number 3760 Manual 92362.00 3760 Quick Reference Guide 92367.00 5 Pin connector, analog signals 25657-LF 8 Pin connector, transducer 25658-LF 10 Pin connector, logic 25606.00 USSTDCORD (900744)
  • Page 6 The Model 3760 is a single-channel panel instrument for DC Voltage and 4-20mA sensors; intended for applications involving single ended or differential DC Voltage signals with ratings between 50 mV to 200.0 Vdc input full scale or 4-20mA inputs. The 3760 will supply excitation, conditioning and provide a calibrated Engineering Unit's display and analog output signals for the measurement of pressure, displacement, speed, load and other parameters associated with DC based sensors.
  • Page 7 Filter: 3-pole modified Butterworth; 3 dB down at 2 Hz, 20 Hz or 200 Hz; selectable. Fast output always enabled, 5 KHz response (J3 Pin 3). Step-Response Settling Times for the 3760 (in milliseconds) 3db Frequency To within 1% within .1% within .02%...

  • Page 8: Rear Panel Connections

    O N N E C T I O N S The Model 3760 I/O CONNECTIONS are via removable screw terminals which will accept wire sizes from AWG 12 to 26. N O T E : The recommended transducer cabling would be twisted pair, individually shielded - wired as indicated (Fig.
  • Page 9 Is the voltage level at which the input signal can be "floating" from earth common which the 3760 can function properly. If this level is exceeeded, the "CMF" (terminal 9, J1) will go true (to ground), giving the user a remote status of the Common-Mode condition of the 3760 unit.
  • Page 10 MODEL 3760 D C V O L T & 4 - 2 0 m A P A N E L M E T E R O N N E C T I O N S Fig. 6 - Transducer Cabling – DC Voltage Input- J2 Connector DC –...
  • Page 11 MODEL 3760 D C V O L T & 4 - 2 0 m A P A N E L M E T E R O N N E C T I O N S J3 - Analog Connections Provides analog outputs from the meter's signal conditioning area in the form of ±...
  • Page 12 MODEL 3760 D C V O L T & 4 - 2 0 m A P A N E L M E T E R O N T R O L S Display Range and Decimal Point Selection Switch 1 - selects decimal point for position X.XXXXX Switch 2 - selects decimal point for position XX.XXXX...
  • Page 13 O N T R O L S Analog Wide Span and Zero Controls 16 Position switch for wide control adjustment of the analog output signal from the 3760 meter, this in turn affects the digital readout for engineering units adjustments as determined by the display settings.
  • Page 14 MODEL 3760 D C V O L T & 4 - 2 0 m A P A N E L M E T E R C o n t r o l s Analog Control Settings Front panel controls configure the main parameters of the Signal conditioner for input type, mode of the analog output signal, low pass filter characteristics and full scale voltage input range.
  • Page 15 MODEL 3760 D C V O L T & 4 - 2 0 m A P A N E L M E T E R C o n t r o l s Analog Symmetry, RCAL, TARE Symmetry - Adjust the negative gain slope for symmetrical analog adjustment and display reading with reference to the positive span value.
  • Page 16 AC input power. Allow 10 minutes of warm up for stabilization of transducer characteristics. Remove the front cover of the 3760 unit by removing the two small Phillips screws on the front panel. TARE button should not be activated.
  • Page 17 Tech Tip on use of wide range settings for the DC Voltage Conditioner Due to multiple amplifier stages within the 3760 instrument, attention to the proper gain setting and understanding of the sensor inputs should be reviewed to produce a linear- amplified analog output signal and display reading.
  • Page 18 FRONT CALIBRATION (RCAL) setting The 3760 contains a "calibration switch" which is accessed by removing the rear panel of the instrument. This switch is used to set the range of the front panel pushbutton (and rear remote control) of the CAL / Remote CAL function of the 3760 instrument.
  • Page 19 DC VOLT & 4-20mA PANEL METER Model 3760 FUSE REPLACEMENT Should you suspect a blown fuse proceed as follows. WARNING Installation, operation and maintenance of this instrument must be performed by qualified personnel only. The National Electrical Code defines a qualified person as “one who has the skills and knowledge related to the construction and operation of the electrical equipment and installations, and who has received safety training on the hazards involved.”...
  • Page 20 DC VOLT & 4-20mA PANEL METER Model 3760 WARNING Do not replace fuse again if failure is repeated. Repeated failure indicates a defective condition that will not clear with replacement of the fuse. Refer condition to a qualified technician. ADVERTENCIA No reemplace el fusible nuevamente si se repite la falla.
  • Page 21 DC VOLT & 4-20mA PANEL METER Model 3760 Page left blank Page 16...

  • Page 22: Product Warranty And Repair

    DC Voltage Panel Meter Product Warranty and Repair rial Daytronic Corporation warrants its products to be free from defects in mate workmanship, under normal and proper use in accordance with our instructions, for the period of time specified below. Our liability under such...
  • Page 23 3700 SERIES “P” Option ANALOG PEAK CAPTURE INSTRUCTION MANUAL 3700 Instrument Series...
  • Page 24 3700 “P” Option Instruction Manual, v. A.01 Issued 07/15 3700 SERIES “P” Option ANALOG PEAK CAPTURE INSTRUCTION MANUAL Daytronic Corporation Dayton, OH • Tel (800) 668-4745 www.daytronic.com...

  • Page 25: General Description

    1. General Description The “P” option of the 3700 Series Meter is an added function card which provides the ability of the meter to capture and hold + Peak, -Peak, Max-Min or TIR value that originates from the base 3700 instrument. Any 3700 (except Horsepower 3741) can accomidate the "P"...

  • Page 26: Dip Switch Configuration

    DIP Switch Configuration Located on the rear panel above the main board connections, the 7 position dip switch configures the PEAK functions of the meter. The Default position of the switch is in the UP (ON) position as noted in the table below.

  • Page 27: Pin Number

    Functional Block Diagram of the PEAK switch settings 3. PEAK Interface I/O Connections Pin assignments for the 3700P board's 8-pin I/O connector (shown in Fig. 1) functional description Pin Number Function Output HAVE PEAK Output Logic Signal, indicates a Peak has been detected. Input TRACK or PEAK Input Logic Signal to Clear (Track) or to Arm for a Peak capture function...
  • Page 28 4. Setup conditions for the "P" option and TARE switch operation When the "P" option is installed - the front panel "TARE" Push/Push switch can be configured to operate in three seperate function modes for local operation depending on the DIP switch selection and/or logic inputs selected.
  • Page 29 4. Interface I/O Connections Fig. 2 Interface Connector Operation Track/PEAK Via External Command (Switch, Open The 8 pin rear connector provides remote access to the Collector Transistor, or Peak operational parameters. All logic I/O are negative true TTL Logic) signals - logic common when active or true. Functional diagrams of the logic for enabling PEAK 2 (TRACK) functions are shown in Fig.
  • Page 30 + PEAK Mode - captures and holds the most positive signal amplitude of the measurement within the positive quadrant of the signal. Switch 2 UP - Switch 3 UP Fig 3 - PEAK Mode - captures and holds the most negative signal amplitude of the measurement within the negative quadrant of the signal.
  • Page 31 MAX + MIN Mode - captures and holds the most positive signal and the most negative signal amplitude in the positive and negative quadrants of the measurement resulting in an absolute analog output signal. Switch 2 UP - Switch 3 DOWN Fig 5 Note: When in Max-Min mode the analog signal may overrange due to the summing of the + Peak and - Peak captured signal.
  • Page 32 Threshold Level Adjust and Have Peak Detection (Backout) Switch 6 - PEAK THRESHOLD DISPLAY ADJUST on the rear panel dip switch: When in the DOWN position, will switch the front panel display to provide level adjustment of the Threshold Potentiometer to provide a "No Peak Zone" around the Zero level. This adjustment is used to eliminate false Peak Captures around the zero measurement level as shown in the gray area of the Fig.
  • Page 33 Quick Set-up operation 1. Determine the Peak Mode required Configure switch settings 2 and 3 for the proper function. 2. Select FAST or SELECT signal source Configure switch 1 - FAST will be the highest dynamic capture. SELECT will reflect the low pass filter selection on the main 3700 Analog Controls. 3.
  • Page 34 Peak Capture Response The Peak Capture of the analog signal is performed using “capacitive” memory. This technique is very repeatable and does not involve digital sampling errors. It does, however result in a millivolt/second “leak rate” after the initial “capture” which varies depending on the Peak Capture cycle rate, amplitude of the analog signal and the wave shape of the signal being monitored.
  • Page 35 Page left blank Page 11...
  • Page 36 Daytronic Corporation. All specifications are subject to change without notice. Daytronic Corporation Dayton, OH • (800) 668-4745...

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