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Summary of Contents for Synectic Electronics SY021
- Page 1 SY021 Portable Load Meter User Instructions Relates to firmware version 5.62s revised February 2019...
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Page 2: Pin Signal
Introduction The SY021 is a portable load meter, which can indicate the load present on any attached cell. A dual channel version is available which indicates the load on 2 load cell inputs simultaneously. Calibration details of up to 50 load cells can be stored for each available input. RS232, USB, Bluetooth printer and data logging options are also available. - Page 3 Where xx and yy are the last used channel numbers and mode is the current operating mode (Continuous or Peak hold) of each channel. If the second channel option is not fitted, the second line will indicate ‘Single channel’ To display the load on each available input, press ENT on the keypad. If a communications port is fitted and use of Batch Reference has been selected, see 3.75, the screen will first show: 'ENT when correct'...
- Page 4 2.0 Changing channels and operating modes Press 1 to change input 1 or 2 to change input 2. Pressing 1 will change the display to show: 'Configure input1' 'Setup(00-49) xx' Where xx is the currently selected setup channel. The unit can store details of up to 50 setup channels for input 1.
- Page 5 3.2 Filter setting The display will then show the currently set filter value (0-3) of the selected channel. The filter value determines the number of readings, which are averaged for each sample as follows: 0 = 1 reading (fastest response) 1 = 2 readings 2 = 4 readings 3 = 16 readings (heaviest damping)
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Page 6: Internal Clock
To change it press ENT and enter a new 3 digit value in the range 0-255. (Factory default 0msec). If you are experiencing difficulty getting the PC software to work with the SY021 it may be because the inter character gap is set to high. When correct press CAL. -
Page 7: Finding Devices
To check and/or reconfigure the the settings press ENT, or press CAL and go to 3.8 3.71 Bluetooth paired device details The display will show the address of the Bluetooth printer that the SY021 will attempt to pair with. ‘ 0123-45-6789AB ’... - Page 8 If the printer address isn't known, the description will usually allow identification. If not sure about any of the devices found, press CAL to exit. If ENT has been pressed the display will change to ‘ 0123-45-6789AB ’ ‘ Storing device ‘ After a while the display will change to ‘Turn Printer OFF’...
- Page 9 3.82 Trigger Interval If continuous mode the interval between saved readings depends on the filter setting: Filter Sample interval Maximum logging time 10 msec 1 min 20 sec 20 msec 2 min 40 sec 40 msec 5 min 20 sec 160 msec 21 min 20 sec NOTE:...
- Page 10 3.9 Custom units The display will show ‘ Custom units ??’ Where ?? Can be any pair of characters. To change the first character, press ENT. Use the up arrow (2) or down arrow (8) to scroll the available symbols. If either of the keys is held in the symbols will continuously scroll. When the first character is correct, press the right arrow (6) and repeat the process for the second character.
- Page 11 Command Description Response @ Read Unit ID Model number, Firmware version and serial number. Eg. SY021,V5.60i, 1234cr C Clear Log If Logger is fitted; ‘Y’ if successful, ‘N’ if unread data if no logger fitted; ‘?’ D Dump logger If logger fitted; Transfer logger data in CSV spreadsheet format.
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Page 12: Voltage Input
A calibrated loadcell is available with an output of 2.012mV/V at 100kg. The loadcell is connected to channel 1 of the SY021 and automatic calibration mode is selected. The given values of 2.012mV/V and 100kg are entered and 2 decimal places are selected. When tested the displayed weight is found to be 0.03% high. -
Page 13: Specifications
The instrument is powered by 4xAA batteries. With logger & USB options fitted, typical current consumption when connected to a 350 ohm load cell is 48mA, giving an operating life with alkaline cells of approximately 50 hours. With no load cell connected the consumption drops to 35mA. When the instrument is switched off, consumption is zero. - Page 14 200mV of the supply. If the 5V excitation from the SY021 is enough for the transducer, the 4.7V zener diode isn't required, but if a higher, external supply is needed it protects the SY021 input for over voltage damage.
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