This manual is on-line for reference only to assist you in gaining a better understanding of the features and operations of the Scientech line. The specifications are subject to change. You MUST CONTACT Scientech for permission to print out this manual.
TABLE OF CONTENTS UNPACKING AND SETUP................................3 THE ON/OFF SWITCH .................................5 THE ZERO SWITCH..................................5 UNIT OF WEIGHT SELECTION ..............................5 THE SEND SWITCH..................................5 RANGE SELECTION (DUAL RANGE BALANCES ONLY)......................6 THE FUNCTION SWITCH ................................6 (CAL 1) AUTOCALIBRATION - USING AN EXTERNAL CALIBRATION WEIGHT................6 (CAL 1) AUTOCALIBRATION - USING 9000-INT MOTORIZED INTERNAL CALIBRATION WEIGHT ...........7 (PCS) FRONT PANEL PARTS COUNTING...........................7 (HI-OK-LO) CHECKWEIGHING / PROCESS CONTROL LIMITS ....................8...
U.S.A. The attractive quality of Scientech balances has been demonstrated by being certified by TUV to carry the “CE” mark of conformity.
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All balances are equipped with a special clamping screw that locks the balance suspension during shipping. This screw must be loosened before the balance can be operated (see Figure 2). Locate the black knob, on the front center of the balance, underneath the display area. Remove the paper tag.
NOTE: Scientech balances are DTE (computer) devices. If communicating to another DTE device (ie computer), a special Scientech RS232 cable (PN10697) is required. If you are communicating to a DCE device (printer), a modem cable is required. Scientech offers an optional modem cable (PN10170) for your convenience.
RANGE SELECTION (dual range balances only) Pressing the RANGE switch selects low (LO), high (HI) and autorange (HI LO). As a range is selected, it briefly appears at the left of the display. Autorange automatically switches from low range to high range when a weighing exceeds the capacity of the low range.
(CAL 1) AUTOCALIBRATION - Using 9000-INT Motorized Internal Calibration Weight NOTE: Dual range models must be placed in HI range before starting the calibration procedure. NOTE: For correct calibration weight refer to specification charts on pages 28-31. The balance should be warmed up for at least one (1) hour prior to calibration and leveled according to the Unpacking and Setup section.
NOTE: Access to the pieces function, via the front panel, is disallowed if a Data Input Keyboard is functional or bi- directional RS-232 is enabled. RS-232 is enabled by selecting local control (LC) OFF (see RS-232 Front Panel Configuration section for details). Local control ON means the front panel controls the balance. Press the FUNCTION switch (or MODE and Display cycles repeatedly through PCS, HI-OK-LO, CAL1, CAL2, RANGE switches simultaneously for dual...
Press the FUNCTION switch (or MODE and Display cycles repeatedly through PCS, HI-OK-LO, CAL1, CAL2, RANGE switches simultaneously for dual and CAL 100. range models). Press the MODE switch when appears in the appears in the display and you are now in the time averaging display.
The capacity tracker provides a graphic display of the used and unused portions of the weighing range. Each segment represents 5% of the balance's capacity and is illuminated as that portion of the capacity is used. The larger segments, representing 1/4, 1/2, 3/4, and full load, flash as they are approached and then become solid again as they are exceeded.
= 6.50/2.25= 2.89 specific gravity DENSITY DETERMINATION Scientech does not offer a density determination kit nor do you need one to determine density. Density is mass (grams) per unit volume (cubic centimeters). In order to determine density of a solid, place a graduated flask with a known volume of water on the pan of the balance, tare the balance, and then place the solid in the flask of water.
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The optional Scientech keyboard provides direct access to a variety of preprogrammed weighing modes incorporated into your Scientech balance. By following the simple instructions and examples, you will find that both complex and routine weighings are easier than ever. This option may be purchased at any time but must be installed at the factory. To get started, plug the keyboard connector into the mating connector at the rear of the balance with the power off.
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Taring (Zeroing and Subtracting) To zero a weight shown in the display, press the Tare key. This is the same as pressing the Zero switch on the balance’s front panel. To preset a tare weight, or to subtract a weight from the display, enter that weight (including the decimal) using the numeric keys and then press Tare.
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To count the same parts in the future, recall the multiplier and mode for parts counting as follows: 1. Place an empty container on the pan. 2. Press Tare . 3. Place parts to be counted into the container already on the pan. 4.
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Selecting Desired Precision of Displayed Weight Reading When weighing in the mode, the desired precision of the displayed weight reading can be entered into storage register 86. Example: Live mice or rats are to be weighed to a precision of ±0.01 grams. 1.
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5. Remove the container and dry the sample. Return the container with the sample to the balance pan and read the percent solids of the sample in the display. To return the balance to normal operating mode, press C . Compounding To compound by weight, the procedure is: 1.
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2. Press 400.00 , Conv , Tare . When gold items are placed on the pan, the price will be displayed. To return the balance to normal operating mode, press C . These conversion multipliers can also be stored in any of the storage registers 0 through 49 and recalled when desired. Example: Gold chain is being sold at $40.00 per gram.
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F. Continue as necessary. When Recall , Send , is pressed, the printer will print the total weight, min, max, mean, number of samples, standard deviation, and coefficient of variation (coefficient of variation is equal to the standard deviation divided by the mean and is therefore a measure of dispersion).
(Printers must be serial) There are a few different models to choose from. Please contact Scientech or one of our representatives for more information. A comprehensive manual is included with each printer when purchased. All printers are set for a 9600 baud rate. To change this setting please see the printer manual and the RS-232 Front Panel Configuration section.
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To enter the RS-232 configuration mode via the front panel, proceed as follows: Turn the balance off using the ON/OFF switch. Display blanks. Hold the SEND switch down while turning the OK and the current baud rate, br300, br600, br1200, br2400, br4800, balance on using the ON/OFF switch.
USING BI-DIRECTIONAL COMMUNICATIONS Scientech electronic balances, interfaced to a computer via the RS-232 port, can be controlled by a computer program in the same way an operator would control the balance using a keyboard. Any programming language with access to the RS-232 interface can be used to program this control.
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[decimal number]_HI[CR] None Sets the checkweighing high limit register (register 88) to the decimal number entered in the current units. Register 88 is undefined at every ON/OFF cycle. [decimal number]_LO[CR] None Sets the checkweighing low limit register (register 87) to the decimal number entered in the current units.
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XAVG[CR] None Accumulates the current weight in the XBAR registers. RESET_XAVG[CR] None Clears the XBAR registers. GLP[CR] Sends GLP header Puts balance in the GLP mode. XAVG[CR] Sends weight while in GLP Accumulates the current weight in the XBAR registers. RCL_XAVG[CR] Sends statistics and signature line Terminates GLP mode.
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[register number]_RCL_TARE[CR] REG XXX:[register contents][current Adds the specified register contents to units][CR][LF] the TARE register. RCL_XAVG[CR] [average weight] [current units] Sends the results of a standard deviation AVX[CR][LF]. [2 second delay]. run. The TBAR mode, if in use, is [number of samples taken] temporarily suspended while...
RS-232 BALANCE MESSAGE FORMATS The balance will respond to a SEND command by transmitting a message in one of three formats depending on how the SEND command was issued. The following discussion defines five types of SEND commands and the three message formats. The first case typically applies to a balance with RS-232 connected to a printer and an external print switch.
Message is _ _ _ 0.00_ _ _G_SIGMA_ _TBAR_ CR LF Format B: Balance in normal weighing mode Y ...CR LF Display shows 5.15 g and balance in high range Message is _ _ _5.15_ _ _G_ _HIGH CR LF Format B: Balance in a special weighing mode Display shows 1250 PCS and balance in low range Message is...
*Balance not warmed up enough for *Plug in and turn on balance for 1 hour calibration to be performed Err 3 through 14 appears in display *Service is required *Call Scientech's Service Department at (800) 525-0522 or (303)444-1361 or email us at inst@scientech-inc.com.
ENVIRONMENTAL REQUIREMENTS This product is intended for indoor use at altitudes up to 2000 meters, Pollution Degree 1 or 2 in accordance with IEC 664 and transient overvoltages according to Installation Categories (Overvoltage Categories) I, II and III. For mains supply, the minimum and normal category is II. SPECIFICATIONS SA SERIES ANALYTICAL BALANCES Model SA 80...
If equipment return is required, please pack the items in the original box and packing material. As an alternate, place equipment in a snug fitting box, then pack that box in a larger box with at least four inches of packing material between the two boxes. Scientech does not assume responsibility for underpacked items.
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