Table of Contents
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Table of Contents
Related Manuals for Denver Instrument TB-124
Summary of Contents for Denver Instrument TB-124
- Page 1 TB Series Operation Manual 902535.1 Rev. A...
- Page 2 You have purchased a quality precision weighing instrument that requires handling with care. Read entire contents of this Operation Manual prior to operating your new Denver Instrument balance. Disclaimer Calibrate your balance using a reference weight of the appropriate tolerance (class). An instrument can be no more accurate than the standard to which it has been compared.
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Page 3: Table Of Contents
Table of Contents Specifications ..........ii Getting Started . -
Page 4: Specifications
Equipment is suitable for continuous operation with AC adapter. Pollution degree: 2; Installation category: II; Sound Pressure Level emitted by equipment does not exceed ambient noise. Caution: Use AC adapter supplied with unit only! Consult Denver Instrument for replacement. -
Page 5: Getting Started
Getting Started Storage and Shipping Conditions Allowable storage temperature: +5°C…+40°C (+41°F…+104°F) Save the box and all parts of the packaging for any future shipment of your balance as only the complete original standard packaging ensures safe transport. Before packing your balance, unplug all connected cables to prevent damage. -
Page 6: Pan Assembly
Draft Shield Preparing Balances with a Cover Round Glass Draft Shield • Place the shield disk on the balance. Turn the disk Draft counterclockwise until it Shield stops and is secured. • Place the components listed Weighing below on the balance in the order given: –... -
Page 7: Connection To Ac Power
Connecting the Balance to AC Power The balance is powered by an AC adapter. Make sure that the voltage rating printed on this unit is identical to your local line voltage. If the voltage specified on the label or the plug design of the AC adapter does not match the rating or standard you use, please contact your dealer. -
Page 8: Operation
Operation The display shows the following special codes for your information: O displayed in the upper right corner stands for OFF. The balance was disconnected from AC power and requires warm-up (balance reconnected to AC power or power outage longer than 3 seconds). O displayed in the lower left corner means standby. -
Page 9: Weighing
Weighing Simple Weighing (Weight Determination) Place your sample on the weighing pan to determine the weight. Read off the weight indicated on the display only after the weight unit “g” or a different unit selected appears as the stability symbol. Toggle between weighing units Press FUNCTION to toggle back and forth from two chosen units. -
Page 10: Calibration
Calibration/Adjustment During calibration, the span of the balance is adjusted to the changes in ambient conditions. You must adjust or calibrate your new balance at the place of installation after each warm-up period and before the first measurement. You must also re-adjust or recalibrate your balance each time you set it up in a different area or when ambient conditions change (especially the temperature). -
Page 11: Block Calibration
Block Calibration (Select menu code: 1 9 7) Blocks CAL KEY so calibration or adjustments cannot be made. Only when menu access switch is in “locked” position (see page 13, “Menu Access Switch” for details). Note: Memo: Percent Weighing Weighing in Percent (Menu Code 2 1 5) Symbol displayed: % This application program enables you to obtain weight readouts in percent which are in proportion to a reference weight. - Page 12 Changing the Reference Percentage You can change the reference percentage in cycles. Choose from the following settings: 5, 10, 20, 50 and 100. 1. Hold down FUNCTION for more than 2 seconds until “rEF 100 %” appears on the display 2.
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Page 13: Counting
Counting Counting Mode (Menu Code 2 1 4) Symbol displayed: The counting program allows automatic conversion of weights into piece counts based on a reference sample weight. A weight readout is stored as a reference sample quantity (factory setting: 10 pcs = pieces). When you turn on the balance, the reference sample quantity will be displayed as “rEF 10 pcs”... -
Page 14: Animal Weighing
Animal Weighing/Averaging Animal Weighing/Averaging (Menu Code 2 1 7) Symbol displayed: Use this program to determine the weights of live animals or weights under unstable ambient conditions. In this program, the balance calculates the weight as the average of a selectable number of individual weighing operations. - Page 15 Delayed Start Mode A rule of thumb to go by for selecting the right setting to weigh animals is: the more active an animal is, the greater the difference must be between two successive subweights measured. Depending on individual requirements, starting the averaging operation can be delayed either in the automatic or manual mode until the animal you are weighing has calmed down to a certain degree.
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Page 16: Tare Memory
Tare Memory/Net Weighing Tare Memory/Net Weighing (Menu Code 216) Symbol displayed: NET Use this program to determine the individual weight of several samples and record the net weight. 1. Select menu code 2 1 6 2. Press the FUNCTION key to store the tare weight 3. -
Page 17: Stability Signal
Stability Range The stability symbol will remain displayed in the case of a weight variation +/– 0.25 digit (Menu Code 1 3 1) 0.5 digit (Menu Code 1 3 2) 1 digit (Menu Code 1 3 3) 2 digits (Menu Code 1 3 4) 4 digits (Menu Code 1 3 5) 8 digits (Menu Code 1 3 6) Starting with the basic increments of a weight unit, the display accuracy... -
Page 18: Below-Balance Weighing
Blocking the Keys You can block all keys on the balance (except for ON/OFF ). - accessible (Menu Code 8 3 1*) - blocked (Menu Code 8 3 2) Below-Balance Weighing A port for a below-balance weighing hanger is located on the bottom of the balance. For Balances with an Analytical Draft Shield Chamber: To hook a sample on the hanger, open the below-... -
Page 19: Rs232 Interface
RS-232 Interface RS232 for Printouts or Data Transfer You can attach a GLP printer (see accessories) or a computer into this interface port. In addition, you can choose to have data output from your balance to this on-line device either automatically or by pressing the PRINT key. -
Page 20: Pin Assignment Chart
Warning When Using Pre-wired RS-232 Connecting Cables! RS-232 cables purchased from other manufacturers often have incorrect pin assignments for use with Denver Instrument balances. Be sure to check the pin assignment against the chart below before connecting the cable, and disconnect any lines marked “Internally Connected” (e.g., pin 6). -
Page 21: Serial Interfacing
Serial Interfacing During data communication between the balance and an on-line device (computer), “telegram-style” information consisting of ASCII characters is transmitted by the interface. For error-free data communication, the interface parameters, including the baud rate, parity and handshake mode as well as the character format, must be the same for both units. You can change these parameters in the balance operating menu so that they match those of the on-line device. -
Page 22: Print Commands
Print Commands This parameter is coupled with the stability parameter Print on request = data is output only when the PRINT key is pressed or a software command is received Auto print = continuous, automatic data output - print on request regardless of stability (Menu Code 6 1 1) - print on request after stability, with storage of function (Menu Code 6 1 2*) - print on request at stability, without storage of function... -
Page 23: Data Output
Data ID Codes To help you identify weights, piece counts, percentages, etc., a code letter is printed or displayed in front of these values. For example, an “N” printed or displayed in front of a weight value identifies it as a net weight. If you set the code for “without data ID code,”... -
Page 24: Data Input
Data Input Formats Commands can be input via the balance interface port to control the balance functions. Control commands are distinguished according to those with upper-case letters, or special characters, and those with lower-case letters. Control command can include up to 13 characters. each character must be transmitted with a start bit, a 7-bit ASCII-coded character, a parity bit and one or two stop bits. - Page 25 Control Commands with Lower-Case Letters All functions that can be selected by pressing the respective keys on the balance can also be activated by commands. ESC f 0 _ CR LF (function key) ESC f 1 _ CR LF (cal key) ESC s 3 _ CR LF (clear function) ESC x 0 _ CR LF (Perform calibration test) ESC x 1 _ CR LF (Output scale model)
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Page 26: Troubleshooting
Troubleshooting Problem Causes Solution No segments No AC power Check the AC power appear on the is available. supply. weight display The AC adapter is not Plug in the AC adapter. plugged in. No segments The surface on which Make sure that ambient appear on the weight balance rests is not stable. -
Page 27: Care And Maintenance
– the AC adapter has been stored for a relatively long period under unfavorable conditions In this case, notify Denver Instrument at 1-800-321-1135. Only service technicians who are authorized by Denver Instrument and who have access to the required maintenance manuals are allowed to perform... -
Page 28: Accessories
Instrument product. The return of the card is not a condition precedent to warranty coverage. 2. If you have any questions about a Denver Instrument Summit Series Balance, please call toll-free, 1-800-321-1135 or FAX a description of the problem to (303) 423-4831 for technical assistance. - Page 29 Changing Menu Codes To select specific functions, you will need to set the respective menu codes. The keys have special functions for setting menu codes: CAL/CF = Increases a number by one with each press (the numbers change in cycles) TARE = Confirms and stores a code setting;...
- Page 30 North and South America: Denver Instrument Company 1855 Blake Street, Suite 201 Denver, Colorado 80202 Tel: 800.321.1135 Tel: 303.431.7255 Fax: 303.423.4831 U.K. and Ireland: Denver Instrument Company Denver House, Sovereign Way Trafalgar Business Park Downham Market Norfolk PE38 9SW England...