TK-C7 High Precision Digital Ultrasonic Thickness Gauge
Professional ultrasonic thickness measuring instrument with 0.15-2000mm measurement range, multiple measurement modes, and Bluetooth data transmission capabilities.
Product Overview
High precision digital ultrasonic thickness measuring instrument featuring multiple measurement modes and Bluetooth communication. This instrument employs pulse-echo ultrasonic measurement technology designed for materials where ultrasonic waves travel at constant internal velocity and produce clear backwall reflection.
The TK-U7 model with 5mm contact diameter probe can verify genuine gold coins and includes manual velocity setting capability. With ultra-high measurement resolution of 0.001mm, it delivers precise thickness measurement for various plates and machined parts including metals (steel, cast iron, aluminum, copper), plastics, ceramics, glass, fiberglass, and other materials with good ultrasonic conductivity.
Widely used in petroleum, chemical, metallurgy, shipbuilding, aviation, aerospace, and other industrial sectors.
Key Features
- Multiple measurement modes: Pulse-Echo (P-E), Interface-Echo (I-E), and Echo-Echo (E-E) for accurate substrate thickness measurement
- E-E mode enables substrate thickness measurement through coating layers (Coating Version measures substrate and coating thickness simultaneously)
- Real-time temperature compensation eliminates measurement errors from probe temperature variation
- Factory pre-calibrated probe ready for direct operation without frequent recalibration
- 16 adjustable gain levels and 7 adjustable transmit levels for optimal performance
- Compatible with wide range of single-element and dual-element dedicated probes
- Probe calibration and two-point calibration functions for automatic error correction
- Inverse sound velocity calculation based on known workpiece thickness
- Multiple measuring modes: single-point, scan, upper/lower limit scan, boundary scan, and difference measurement
- Built-in keypad lock prevents accidental parameter modification
- Presettable thickness thresholds with automatic buzzer alarm
- Comprehensive display including thickness, sound velocity, coupling status, battery level, and timestamp
- Complete measurement record storage with thickness, sound velocity, and testing time data
- Portable thermal printer compatibility for record printing
- Bluetooth/Mini-USB real-time data communication with PCs and smart devices
- Intelligent voice broadcast of measured results (Voice Version)
- Sound velocity measurement and spheroidization grade classification for ductile iron (Sound Velocity Version)
- Lower-limit measurement for workpieces with internal defects or multi-layer materials (Lower Limit Version)
- Customizable hardware and software services including power supply refitting and communication protocol customization
Technical Specifications
| Item | Specification |
| Probe Models | S15-P06①, G5M-P10, G5M-P08, G7M-P06, G2M-P12, H3M-P12, S2M-P14① |
| Measuring Range | 0.15-2000mm (Refer to probe technical datasheet) |
| Measurement Error | Dependent on probe parameters (see probe technical datasheet) |
| Measuring Frequency | Dependent on probe parameters (see probe technical datasheet) |
| Display Resolution | Optional: 0.001mm / 0.01mm |
| Measuring Modes | P-E, I-E①, E-E①, AUTO①, E-C①②, C-E①② |
| Measuring Cycle | 4 times/sec for P-E mode; 2 times/sec for other modes |
| Sound Velocity Range | 1 ~ 19999 m/s |
| Sound Velocity Measurement | Reverse calculation of sound velocity, direct velocity testing③ |
| Calibration Functions | Probe calibration, two-point calibration, built-in steel calibration test block |
| Measurement Parameters | 16 adjustable gain levels, 7 adjustable transmit levels |
| Measurement Methods | Single-point, scan, upper/lower limit scan, boundary scan, difference measurement; support over-limit alarm & lower limit measurement④ |
| Screen Display | Switchable Chinese/English menu; FSTN LCD with cold backlight |
| Displayed Information | Thickness value, sound velocity, coupling status, valid echo count, battery level, time, etc. |
| Data Storage | 1000 groups of records (5 files × 200 groups each), including thickness, sound velocity, test time |
| Data Communication | Bluetooth / Mini-USB interface, virtual serial port communication; real-time online measurement, command control⑤, upgradeable host program |
| Data Printing | Optional portable thermal printer |
| Charging Time | 3-4 hours |
| Power Supply | 3.7V rechargeable lithium-ion battery; 80-hour continuous operation (Bluetooth & backlight off) |
| Auto Power Off | Customizable standby timeout; low voltage auto-off (below 3.4V) |
| Ambient Temperature | Operating: -10 ~ 50 ℃; Storage: -30 ~ 60 ℃ |
| Overall Dimension | 157mm × 78mm × 37mm |
| Net Weight | 260g |
| Housing Material | ABS plastic |
| Instrument Case Material | High-impact ABS (IK08), dustproof & waterproof (IP67) |
① Available in specific versions only
② Coating Version feature
③ Sound Velocity Version feature
④ Lower Limit Version feature
⑤ Command Version feature
