Transcell Technology TI-700K

The Transcell TI-700K is a digital weight indicator designed for various weighing applications, including those with wireless capabilities. Out of the box, it functions as a basic cabled digital weight indicator, connecting load cells and/or a j-box to its internal A/D converter. When paired with an external TI-500 RFTM (Radio Frequency Transceiver Module) and an optional wireless radio, the TI-700K transforms into a cable-free system, utilizing reliable Bluetooth® wireless technology.

Function Description

The primary function of the TI-700K is to accurately measure and display weight. It supports multiple units of measure, including pounds (lb), kilograms (kg), grams (g), and ounces (oz), which can be toggled using the UNITS key. The indicator features an automatic zero correction, automatically zeroing small deviations. For larger deviations or to manually set the zero point, the ZERO key can be pressed.

Beyond basic weighing, the TI-700K offers several advanced operational modes:

Hold Operation: This mode, enabled by setting F30 to "5" in the Setup Menu, captures and freezes the weight of an unstable load on the display, particularly useful for weighing livestock. It includes several specific hold modes selected via the F35 setting:
- Automatic (F35 = 1): Automatically locks the weight on the display when stable. If the object's weight changes by a set percentage (e.g., 10% via F36), the scale unlocks and relocks onto the new weight, accommodating both increasing and decreasing values.
- Manual (F35 = 2): Requires pressing the NET/GROSS key before applying weight. The display holds the stabilized weight reading until the NET/GROSS key is pressed again. Similar to automatic mode, it relocks onto new weights if the object's weight changes by the F36 setting, but only for increasing values.
- Peak Hold (F35 = 3): Displays and holds the maximum weight applied to the scale, updating only as the load increases. This mode is ideal for testing the breaking point of parts or assemblies, recording both positive and negative peak weights. The 'P' annunciator indicates Peak Hold mode, and the old peak value is automatically cleared upon exiting this mode.
NET Weighing: This function allows for the measurement of net weight, which is the product's weight alone, excluding its container or packaging (tare weight). The indicator stores the current tare weight in memory even when powered off, reverting to NET weighing mode and applying the stored tare weight at startup if present. To use, an empty container is placed on the platter, the TARE key is pressed to zero the display, and then the object is added. The NET annunciator activates, showing the net value. The NET/GROSS key can toggle between gross and net weight, and pressing TARE again clears the tare value.
Piece Counting: Enabled by setting F30 to "3" in the Setup Menu, this mode indicates the number of pieces on the platform. It's crucial that the items being counted are consistent in weight for accuracy. The indicator uses a sampling method to determine the average piece weight (APW). Users can tare a container if needed, then press the UNITS key until "5 0" appears, prompting for five identical items. The sample number can be changed (5, 10, 20, 50, 100). After placing the sample items and allowing stabilization, pressing NET/GROSS takes the sample. If the sample size is sufficient, the display shows the piece count with the "PCS" annunciator lit. If not, "Lo" is briefly displayed, and the sample size automatically increments. The APW is not retained in memory upon exiting this mode.
Accumulation (Totaling): This mode, enabled by setting F30 to "1" in the Setup Menu, allows adding multiple weighments to obtain a total weight. If a tare weight is active, the net weight is automatically added. To accumulate, load the system, press PRINT to add the current load to the accumulator (display briefly shows "ADDED"), and it returns to weighing mode. If a printer is installed, a printout is made. Weights cannot be recorded twice; the system must return to the net zero-range before adding another weight. The subtotal can be checked by pressing PRINT twice at net zero, toggling between net total weight and the number of weighments. During this display, pressing PRINT again prints and resets the total, while pressing NET/GROSS resets the total without printing. If no key is pressed, the subtotal remains in memory.
Printer Functionality: If equipped with a printer, the system can print weighing data along with time and date. The printout can include ID.NO., DATE, TIME, GROSS, TARE, NET, and PCS, depending on configuration settings. TARE and NET fields only print when a tare has been established.
Checkweigher: Enabled by setting F30 to "6" in the Setup Menu, this mode is used for accurately filling a vessel by weight and can drive a light tree or buzzers/alarms with an optional digital I/O board. Operators set Low and High (Min/Max) weight values from the front panel using the NET/GROSS key. The display shows "Lo" then the current low weight, allowing adjustment with directional keys. After saving, it shows "Hi" then the current high weight for adjustment.
- If the displayed weight is less than the Low (Min) value, Digital Output #1 is activated, SP1 light is ON, and the backlight is BLUE.
- If the displayed weight is more than the High (Max) value, Digital Output #3 is activated, SP3 light is ON, and the backlight is RED.
- If the displayed weight is within the Low/High (Max/Min) range, Digital Output #2 is activated, SP2 light is ON, and the backlight is GREEN.

Usage Features

The TI-700K features a 7-digit LCD with adjustable LED backlight for clear display. The capacitive touch keypad consists of seven function keys: MENU/OFF, UNITS, ZERO, NET/GROSS, TARE, PRINT, and ON, along with SET and arrow keys for menu navigation.

Power On/Off: Press and hold the ON key for 2-3 seconds to turn the unit ON. Press and hold the MENU/OFF key for 2-3 seconds to shut the unit OFF.
Unit Conversion: The UNITS key toggles between lb, kg, g, and oz, provided unit conversion is enabled.
Zeroing: The ZERO key sets the indicator to display zero weight when the scale is displaying Gross weight, is not in motion, and is not in overload.
Net/Gross Toggle: The NET/GROSS key toggles between Gross and Net weight once a Tare weight has been established.
Tare Function: The TARE key establishes a tare weight when the indicator displays a Gross weight above zero, is not in motion, and is not in overload. If a tare weight is already established, pressing TARE cancels it.
Print Function: The PRINT key sends weight information to the serial port when the scale is not in motion and not in overload.
Menu Navigation: The SET and arrow keys are used for navigating the various configuration menus.

Maintenance Features

Battery Management (TI-500 RFTM): The TI-500 RFTM uses 4 "C" cell alkaline batteries. The blue LED indicates battery status: solid for a few seconds then flashing upon power-up, 1.5-second blink interval for full battery in working mode, 4 seconds for sleep mode. For low battery, it blinks every 10 seconds (double flash for sleep mode). Users are prompted to replace batteries when the blink interval is 10 seconds. The TI-500 RFTM will shut down within two hours of a lost connection with the indicator and only enters sleep mode when the TI-700K indicator is OFF.
Battery Replacement (TI-500 RFTM): To replace batteries, turn off the TI-500 RFTM (RED button), locate the metal battery cylinder, unscrew end caps, exchange batteries (noting polarity), replace end caps, and re-install the cylinder.
Rechargeable Battery (TI-700K): The TI-700K may contain an internal lithium-ion rechargeable battery pack. It ships with a pre-installed battery charger connector and an external charger. To charge, link the external charger to the connector and plug into an AC wall outlet. The indicator shows a red LED for charging and a green LED for charge complete. It's recommended to disconnect the external charger once charging is complete to prolong battery life. The battery can operate for about 85 continuous hours on a full charge. The display unit is configured to power down after 5 minutes of inactivity, though this can be changed. Charging can occur while the indicator is ON or OFF, and the indicator can be operated while charging unless the charge state is very low.
Low Battery Indication (TI-700K): When the battery discharges below 30%, the Low Battery Indication starts blinking in the lower left-hand corner of the display. The indicator can be used for an additional 2 minutes before automatically powering down. It is imperative to charge the battery at this point to avoid permanent damage. The best time to charge is when the indicator is not in use, rather than waiting for the low battery indication.
Cleaning: Harsh abrasives, solvents, scouring cleaners, and alkaline cleaning solutions should be avoided, especially on the display window. The exterior can be wiped with a clean cloth moistened with water and a small amount of soap.
Troubleshooting: The manual provides guidance for common issues:
- "Low Battery" icon blinking and power-off: Replace or recharge batteries.
- Weight reads lower at one end: Check for mechanical binding, obstructions, foreign debris, properly screwed-in scale feet, and adjust platform corners if a trimmer junction box is supplied.
- Seven small zeros displayed: Scale is overloaded; remove weight. Also check for cut, damaged, loose, or pinched cables (cabled systems), damaged load cell, or internal fault (contact Transcell Tech Support).
- Scale turns off on its own: This is due to a power conservation feature (auto-off after 30 minutes of non-use). Contact Transcell Tech Support or installer for different settings.
- Erratic display: May be due to a fully depleted battery (recharge/replace) or obstructions/foreign debris underneath the scale.
Time and Date Adjustment: To adjust the time and date for printouts, the user must enter the User Menu Mode. This involves powering off, then powering on while holding MENU/OFF until "Set?" is displayed. Then, navigate through menu settings (A1-20) using NET/GROSS, ZERO, TARE, PRINT, and UNITS keys to adjust hour, minute, day, month, and year values.