SMART TWEEZERS Professional High-Precision R-L-C Meter
SMART TWEEZERS (smtsmarttweezers, smarttweezers, smttweezers)
Professional High-Precision R-L-C Meter, ROHs complient.
SMD Pre-Calibrated Components Identifier in a Set of Tweezers
| Interested Companies to distribute this product in their countries are
welcome to contact: czes@bokar.com or call USA at (570) 842-2812 This is a great tool and can be used by almost anyone working with SMD's |
TO BUY from stock see Smart Tweezers Distributor in Your Region |
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Available technical information:
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Smart Tweezers is an R-L-C meter in a set of tweezers. Smart Tweezers features a unique patented mechanical and electronic design that incorporates a built-in direct precision SMD probe designed for component evaluation on the production line, component impedance testing and sorting of SMD components. Smart Tweezers dramatically cuts the time necessary to troubleshoot and debug a complex PCB making process of locating of a faulty component a breeze.
The integrated SMD probe and graphic display, combined with automatic recognition of measurement modes (R, C, and L) and the range of measurement, allow the operator to focus on the component under test. As a result, testing, sorting and evaluation of components become more efficient and cost effective.
Inductance, Capacitance, ResistanceThe primary display shows the present reading. The secondary display (on top) shows the present reading of additional parameters or measurement conditions when the primary display shows some other feature (L, C). When multiple features present, the secondary display shows one of the values. The Bar Graph provides an analog indication of the measured input.
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Ergonomic Design and Convenient ControlsSmart Tweezers features a JOG DIAL button to choose modifiers for a selected function or change the setting. Rotate the JOG DIAL button to choose from a list of functions, then press to activate this function and see it appear on the display. |
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SMT Smart Tweezers With a Charger Model ST-R This is a new model which comes with the inductive charger and needs rechargeable batteries. SMT Smart Tweezers Model ST-R is equipped with an inductive coupling board and rechargeable batteries. This model is recommended when "SMT Smart Tweezers" are used for more then 2 hours a day. It has an alternative for the power source. Can use either a USB connector or a regular wall power outlet. If anyone wants to upgrade the previous models of the SMT Smart Tweezers they can purchase an upgrade kit through www.bomir.com or can send the unit to our service department for an upgrade. |
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Technical specification:
| Physical Specifications | |
| Operating Temperature: | 0 °C to +55 °C |
| Storage Temperature: | -40 °C to +70 °C |
| Relative Humidity: | 0 % to 90 % (0 °C to 35 °C) 0 % to 70 % (35 °C to 55 °C) |
| Altitude Operating: | 0-2000 meters |
| Storage: | 10000 meters |
| Battery Type: | 1.5V LR44 Alkaline or Air zinc |
| Battery Life: | 70 Hours typical with alkaline, 200 hours with air zinc battery |
| Electromagnetic Compatibility (EMC): | Susceptibility and Emission: FCC 15 part B |
| Size: | 14.0 x 2.5 x 3.0 cm (3.94 x 0.9 x 1.5 in) |
| Weight: | 53 grams (0.11lb) |
| Warranty: | 1 year |
| Basic Specifications | |
| Measured Parameters: | C+R (ESR), L+R, R |
| Measuring Frequencies: | 100Hz, 1 kHz, 10kHz |
| Measurement update rate: | Up to 4 measurements per second |
| DC Voltage: | 0 to 800 mV (Up to 8V with manual setting) |
| Resistance: | 0.05 Ohm to 9.9MOhm |
| Capacitance: | 0.5 pF to 4999 µF |
| Inductance: | 0.5 µH to 999mH |
| Detailed Accuracy Specifications | Accuracy is specified at 18°C to 28°C (64°F to 82°F), with relative humidity to 90%. |
| Resistance | |
| Range: | 5 Ohm - 999 kOhm 0.1 - 9.9 MOhm |
| Accuracy: | <1% in the 5 Ohm - 999 kOhm range
<5% in the 0.1 -9.9 MOhm range |
| Test Frequency: | 1 kHz |
| Capacitance: | |
| Range: | 10pF - 100µF 0.5pF - 4999µF |
| Accuracy: | <3% in the 10pF - 100µF range <5% in the 0.5pF - 4999µF range |
| Test Frequency: | 1kHz: 10000pF to 1µF; 10kHz: < 9999pF; 100Hz: > 1µF |
| Inductance: | |
| Range: | 10µH-99mH 0.5µH-999mH |
| Accuracy: | <3% in the 10µH - 99mH range <5% in the 0.55µH - 999mH range |
| Test Frequency: | 10kHz: 0.5 to 99 1µH; 1kHz: 100µH to 99mH; 0.1 kHz: > 100mH |
| DC Voltage: | |
| Range: | 0V - 8V |
| Accuracy: | <1% |
Specifications in Adobe PDF format
Spare parts:
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ST-AS-Tips - Spare regular tweezers tips |
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ST-AS-Pocket - Spare pocket clip |
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ST-RB pack Rechargable Batteries Pack |
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ST-CHB Charge Receiver Board |
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ST-CH Base ST-R Charge Base |
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ST-PS 100-240 V Power Supply |
For the users who already have ST-AS SMT Smart Tweezers:
We offer now the Retro kit: P/N ST-CH Kit to upgrade Smart Tweezers ST-AS to ST-R Model with re-chargable batteries
The ST-CH Kit includes the above shown parts which can be installed into ST-AS to convert them into ST-R and the charger (Power Supply and the Base).
The retro instruction sheet for a technician explaining how to perform the retro comes with the kit.
Please see below how to retrofit ST-AS and change it to ST-R
How to upgrade SMT Smart Tweezers (ST-AS) to
ST-R Model with Rechargeable Batteries using ST-CH Kit
(The ST-CH Kit can be purchased from any of Bokar International Distributor near you)
- Remove 3 screws holding the top ST-AS cover (see Fig. A)
Take a note that the screw on the side of the tweezers is a bit shorter than the other two.
Fig. A
- Remove the batteries
- Remove one more screw to remove ST-AS main board from the housing and remove the batteries
- Insert the charger PCB with a ferrite core into the housing as shown in Fig. B and Fig. C
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| Fig. B | Fig. C |
- The PCB must be placed between the plastic rib on the left and the plastic post on the right.
Carefully align it and push it deep into the position shown in Fig. D.
Note: push it gently to avoid breaking or damaging the fragile ferrite core. In the right position the ferrite touches the plastic rib at the bottom of the housing as shown on the encircled area of Fig. D (zoom of the fragment of the Fig. C)
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| Fig. D | Fig. E |
- Proper position of the charger PCB is shown in Fig. E.
- Re-install the ST-AS Main board and place the buzzer into the new location as shown in Fig. F. Tighten the screw holding the Main PCB.
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| Fig. F | Fig. G |
- Using the soldering iron with a fine tip solder red and black wires of the charger PCB into the ST-AS board exactly as shown in Fig.G.
Note: Soldering the wires in the wrong way may destroy the main PCB components by wrong voltage source polarity.
- Insert the rechargeable batteries. Observe the polarity as shown in Fig. H.
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| Fig. H |
- Re-install the top housing.
- Place SMT Smart Tweezers (Now model ST-R) into the Charger and connect the charger to the supply source. The Charger should detect ST-R presence and start charging in Full Charging mode (Red LED for the latest release of the Charger)
- When batteries are charged (~ 4 hours for new batteries) the LED will change the color to Green indicating “Trickle Charging” mode.
