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Energy Meters Operating Manual ™ Thank you for choosing a Scientech Vector calorimeter detector. Scientech’s employees are pleased to provide you with a product designed for years of reliable and accurate service. Please read this operating manual before using your detector and power meter. This reference information will allow you to fully understand the capabilities of the product.
ETECTOR PERATING ARAMETERS All detectors are calibrated at a specific wavelength and the detector’s operating parameters are derived for that wavelength. This information is recorded below and on the detector’s serial tag. When a detector is used at a wavelength other than the calibration wavelength some of the operating parameters may need to be adjusted.
NVIRONMENTAL EQUIREMENTS This product is intended for indoor use at altitudes up to 2000 meters, Pollution Degree 2 in accordance with IEC 664 and transient over voltages according to Installation Categories (Overvoltage Categories) II. Note that each of the above detectors will not pass the IEC 801 Publication, Part 3, Radiated Electromagnetic Field Requirements.
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Table 1. S310 Power Meter Specifications Model S310 S310D Display 4 Digit backlight LCD with analog 4 Digit backlight, LCD indicator Operating Modes, Power or Pyroelectric: energy, average energy, Pyroelectric: energy, avg energy, power, Energy power, statistics statistics Calorimeter: energy, power, calibration Calorimeter: energy, power, calibration Pyroelectric Statistics Mode Pulses collected, avg energy, min energy,...
NPACKING The meter, detectors, and accessories are shipped in custom packing materials. All packing materials should be saved for future damage free shipments. Before making any connections, verify that the power (VAC) requirement shown on the power entry module is compatible with the actual AC power outlet to which the power meter will be connected. To change the power meter’s voltage, proceed as follows: 1.
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to the Group Settings section. If you purchased the S310 with one detector, this detector’s Group settings will be active and you are ready to take measurements. If you purchased more than one detector with the S310, you must choose the Group setting for the detector you are connecting to the S310 in step 4.
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Note that the flat side of the DIN type cables should be oriented up when plugging into the S310. Detectors have a 1/2" diameter mounting post hole for installing a detector post. Mounting bases and posts are available for purchase at Scientech to attach the detector to a working surface. 5. Select a Range On the first press of the RANGE button, the analog scale (if active) will disappear.
8. Take your measurement Direct the laser beam onto the absorbing surface of the detector. ROUP ETTINGS The operating parameters for the detectors used with the S310 power meter must be stored in the power meter’s memory. This information is stored in Group Settings. The typical configuration of the Group Settings is as follows: Group #1 –...
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To review, change, or setup a Group Setting for Vector calorimeters, proceed as follows: A. Press the SETUP button. The Group Setting last used will appear in the display. B. To move to the next Group, press SETUP button again. C.
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To set the time delay between pulses use the count up (RANGE) and count down buttons (MODE) buttons to enter the time in seconds. Press the SELECT button after the time has been entered to save the setting. The following time delays are recommended: AC2500, AC25FX, ACX25FX, AC25HD, ACX25HD 60 seconds AC2501, AC25UV, AC2504...
L. The "HS" (handshake) annunciator now appears in the display. Press the SETUP button until your choice of none (nOnE), on/off (onoF), or clear to send (CtS) appears in the display. Press the SELECT button when your choice is displayed to enter the handshake to memory. M.
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before entering the sensitivity number as this takes you to the next setup step without the proper sensitivity number. F. The "SP" (speed) annunciator now appears in the display. Press the SETUP button to toggle between bL (black or HD coated detectors) or hF (high frequency) detector. If the detector Model No.
1200, 2400, 9600, and 19,200. When the preferred baud rate appears in the display press the SELECT button. K. The "PA" (parity) annunciator now appears in the display. Press the SETUP button to select none, even, or odd parity. Press the SELECT button to enter the parity choice to memory L.
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RELATIVE SPECTRAL RESPONSE HR-P P and SP PHD, PH and SPH PHDXUV HR-P PHF and SPHF *HDX Limited to 0.4 to 2.0 WAVELENGTH [microns] Figure 3. Pyroelectric Spectral Response Before using your Vector joulemeter system, please review the energy density formulas given in the chart at the front of this manual.
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2. To Turn the Analog Needle On or Off (does not apply to the S310D) To turn the analog meter on or off, press and keep holding the RANGE button down. Then release after the meter appears or disappears. 3. To Zero the Analog Needle (does not apply to the S310D) Refer to Figure 3.
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Table 2. S310 Ranges for Pyroelectric Model Standard or SP PHF02 - L PHF02 – S or I PHF05 – L PHF05 – S or I Mode Power Energy Power Energy Power Energy Power Energy Power Energy 30.00μW 30.00μJ 3.000μW 3.000μJ 300.0μW 300.0μJ...
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Note: The maximum repetition rate for average energy is 300Hz. Press the MODE button (repeatedly, if necessary) until the “J AVG” annunciator appears in the display. Press the SELECT button (or wait 3 seconds) and the average joules mode will be automatically activated.
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Note: Do not use AUTO range when making a statistical run. Note: Do not go from the Average Power Mode to Stats since the range will be too high. Select the range manually. Note: When using the PHF09 pyroelectric detector in the long pulse setting, a manual range must be selected when running statistics.
F. After recalling the statistical information, the flashing STATS annunciator indicates that the S310 is ready for a new run. A. Press the SELECT button to start a new run (each time a new run begins, data from the previous run is lost) or press the CANCEL button to return the power meter to the mode of operation in effect prior to statistics mode.
Due to variability in the manufacturing process the absorption characteristics of the HD and P model detectors can vary in the UV region (190 to 400nm). Scientech recommends optical calibration at 266nm if the detector is to be used in the UV region instead of relying on an absorption rate in the chart at the end of this manual.
Note: When using a 25mm calorimeter for measuring average power levels below 30mW and single pulse energy levels below 30mJ, a Scientech Model 360203A isoperibol™ Enclosure is highly recommended. The isoperibol enclosure should not be used at average power levels above 30mW, and single pulse energy levels above 100mJ because heat build-up will occur.
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3. To Zero the Analog Needle (does not apply to the S310D) Refer to Figure 2. The black slotted button located just below the display allows screwdriver adjustment to set the analog needle to zero. This adjustment should be made before connecting a calorimeter. 4.
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* With a PN10748 – 10X attenuator, the actual power or energy is 10 times the displayed value up to 50W or 150J. ** With a PN10769 – 10X attenuator, the actual power or energy is 10 times the displayed value up to 100W or 300J.
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Press the SELECT button (or simply wait 3 seconds) and the joules mode will automatically be activated. iii. The energy level of each laser pulse will be displayed on the LCD. 8. To Measure a Statistical Run of Single Shot Energy Pulses Note: Calorimeters can only measure single shot energy pulses (time between pulses is dependent on the calorimeter delay “CD”...
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Number of pulses collected Average energy (AVG) Minimum energy (MIN) Maximum energy (MAX) Standard deviation (SIGMA) Coefficient of variation (CV%) F. After recalling the statistical information, the flashing STATS annunciator indicates that the S310 is ready for a new run. G.
Note: Due to variability in the manufacturing process the absorption characteristics of the FX model detectors can vary in the UV region (190 to 400nm). Scientech recommends optical calibration at 266nm if the detector is to be used in the UV region instead of relying on an absorption rate in the chart at the end of this manual.
Analog Output The analog output is an uncalibrated output accessible via the 50 ohm terminated BNC connector located on the power meter's rear panel (see Figure 1). Although the analog output voltage level is uncalibrated, it is representative of the power and energy readings displayed on the S310. The analog output voltage level is approximately 3 volts full scale.
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Compare the peak voltage to the energy (joules) reading displayed on the S310 to determine V/J constant to use when looking at the analog output. In the energy (joules) mode the analog output is an amplified voltage signal proportional to the voltage generated by the calorimeter thermopile.
In power (watts) and energy (joules) mode, the peak voltage of a laser pulse is directly proportional to the power energy level: W = Vpk/S where: Vpk = peak voltage from the analog output = analog output sensitivity (V/W) ≈ 3 V/range (W) (for example, on the 3mW range, S ≈...
Compare this resistance to R c in the calibration data in the front of the manual. The two should agree within 2%. If not contact Scientech. E. Remove the DVM. Connect a power supply to the SUB and HTR test points and connect the DVM to monitor the power supply.
Compare this resistance to R c in the calibration data in the front of the manual. The two should agree within 2%. If not contact Scientech. C. Remove the DVM. Connect a power supply to the white jacks and connect the DVM to monitor the power supply.
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Compare this resistance to R c in the calibration data in the front of the manual. The two should agree within 2%. If not contact Scientech. C. Calculate the voltage equivalent to laser power using the following formula:...
Vector (previous called Astral) calorimeters are powered up by the power meter. To use a Vector calorimeter without a Scientech power meter, but with a volt meter or chart recorder, you must apply +/- 8VDC to the mini DIN connector as shown in Figure 7. The voltage output of the calorimeter, from pin 8, should be connected to the positive side of the DVM or chart recorder.
Operation of Vector Calorimeters with a Digital Volt Meter Note: Whenever a large aperture calorimeter is used without a power meter the interface module is not required. The calorimeters may be used with any digital volt meter (DVM) capable of reading 5 volts full scale. Connect the output of the calorimeter to the DVM.
W = V/S, W Chart recorder voltage level in mV Calorimeter sensitivity in mV/W The total energy (E) in the pulse can be found by integrating the instantaneous wattage over time: ∞ E = ∫ W(t) dt The following methods may be used to compute the total integrated energy: Numerical Integration: Finding the area under the curve in figure 7 is the equivalent procedure for determining pulse energy.
Peak Voltage Estimate: The peak voltage method requires using an independent determination of total energy and referencing it back to the peak voltage value, V For a given pulse, use the numerical integration method to obtain E. Note the peak voltage, V .
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B. RS-232 Specifications Type: EIA-RS232C Method: Half-duplex, Asynchronous Transmission: Bi-directional Format: 300, 1200, 2400, 9600, 19200 baud rate selectable Data bits: Parity bit: Even, Odd, or None Stop bit: Code: ASCII Total no. of bits: * The start bit counts for the first bit. Therefore, if you choose no parity you must have 2 stop bits. C.
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Commands in this group are available from both interfaces: *IDN? This query takes no arguments, and returns a comma separated collection of four strings, describing respectively the manufacturer of the instrument (Scientech, Inc.), the model number (S310), the serial number, and the firmware version number. *SAV_<dec num>...
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accessed with the queries mean?, max?, sigma?, and cv?. The individual data points may be dumped with the dump? query. RANGE_<dec num>|auto Sets the range to the decimal number supplied, or to the closest legal range allowed for the current detector and configuration.
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SIGMA? If statistics have been collected from the front panel, or by the COL or COL? commands, this command returns the standard deviation of the collection. If no statistics have been collected it returns zero. If statistics have been collected from the front panel, or by the COL or COL? commands, this command returns the coefficient of variation of the collection.
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Activates or deactivates the analog meter. MODE VOLTS|ENERGY|AVGE|AVGP If the specified mode is valid for the detector in use, the software changes mode to the one specified. MODE? Returns the instrument's operating mode. The possible responses are VOLTS, ENERGY, AVGE, and AVGP.
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CALIB_<dec num> Sets the calibration constant (Volts/Joule) for a pyro detector, (Volt/Watt) for an Ultra Series detector or the time constant for a calorimeter. Note: This command is context sensitive; the detector type must be set by the SENS command before this command is executed. CALIB? Returns the constant for a pyro detector, or the time constant for a calorimeter.
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CDELAY? Returns the "Calorimeter Delay" function of the meter. E. IEEE488 Specific Commands These commands may be used only from the IEEE488.2 interface. They are all members of the collection of the so-called "common Commands" described in the IEEE488.2 standard. *CLS Clears the Standard Event Status Register and forces the device into Operation Complete Command Idle state.
Scientech product specifications for a period of three (3) years. The product warranty period begins on the date of shipment from Scientech. Scientech warrants that its products shall conform to applicable Scientech specifications and drawings and will meet all the functional and performance requirements when properly installed, operated, and maintained in accordance with Scientech’s operating manual.
LECTRONIC QUIPMENT Scientech recommends the following for disposal of electrical and electronic equipment: 1. The best option is to reuse the equipment in its entirety. 2. Where the equipment cannot be reused in its entirety, priority should be given to reuse of its subassemblies and components.
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