DX4085 Z-Meter Tester
DX4085 Z-Meter Tester is a portable measuring device for thermoelectric coolers express analysis. The device measures directly three key parameters (AC Resistance, Figure-of-Merit and Time Constant) of separate or integrated (mounted) thermoelectric coolers. DX4085 has 2.4″ LCD screen, built-in Li-Ion battery for up to 8 hours operating, it is autonomous and doesn’t require a constant connection to PC. All necessary settings, measuring process results and history are displayed and adjusted on LCD screen. DX4085 is supported by standard Z-Meter software, and in case of a connection to PC you get additional functionality with precise corrections setup, TEC geometry settings and results export. The device has a miniature, pocket size form-factor and it’s ideal for engineers and researchers dealing with TECs every day.
DX4085 combines a functionality of three devices in one – portable Z-Meter (ACR, Z, Time Constant ), voltmeter (to check exact TEC operating voltage) and digital thermometer (checking ambient temperature or TEC cold/hot sides temperature). Additionally there is an advanced PC mode, when DX4085 is connected to PC by USB cable.
Main Mode – measurement of three TEC key parameters (Figure-of-Merit, AC Resistance, Time Constant), ambient temperate is measured (when external temperature sensor is connected).
Additional Mode – measurement of TEC AC Resistance only (express testing). Optimal mode for quick thermoelectric cooler check on “before-after basis”.
Operation Mode – measurements of TEC parameters in operating mode – TEC operating voltage and/or TEC temperature check with external sensor is placed on TEC cold side.
PC Mode – Working through a connection to PC with Z-Meter Software (provided with the device). Extra options for measurements are available with TEC databases, precise corrections estimations and measurement results export.
DX4085 Z-METER Specification
| DX4085 Z-METER MINI SPECIFICATIONS |
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| Connection to PC | | Not obligatory. Stand-alone |
| PC Connection Interface | | USB type A (cable is included) |
| Z-Meter Software | | Included. Windows version only |
| Measurement Interface | | External only (Clips on a cable, included) |
| Measurement Scheme | | 4-wires method |
| Ambient Temp. Sensor | | Available, external |
| TEC Polarity Check | | N/A |
| Typical TEC Testing Time | sec | 20 .. 180 (depending on TEC size and Time Constant) |
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| Operating Conditions |
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| Ambient Temperature | ºC | 15 .. 35 |
| Humidity | % | 0 .. 95 |
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| TEC AC Resistance Measurements ( ACR ) |
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| Range | Ohm | 0.1 .. 100 |
| Accuracy | % | 0.6 (but >0.01Ohm) |
| Repeatability | % | 0.3 |
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| Figure-of-Merit Measurements ( Z ) |
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| Range | 10E-3/K | 1 .. 4 |
| Accuracy | % | 1.5 |
| Repeatability | % | 0.4 |
| TEC Time Constant |
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| Range | sec | 1 .. 100 |
| Accuracy | % | 1.5 |
| Repeatability | % | 1 |
| TEC Operating Voltage measuring (DC) |
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| Voltage Range | V | -20 … 20 |
| Accuracy | V | 0.02 |
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| External Temperature Sensor |
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| Temperature Range | ºC | -40 … +85 |
| Accuracy | ºC | ± 0.25 (typical) ± 1 (maximum) ± 0.05 (typical) lifetime drift |
| Repeatability | ºC | ±0.06 |
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| DX4085 Power Supply |
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| Built-in Li-Ion Battery | mAh | 2050 (up to 8 hours of operating) |
| Voltage | V | 5 |
| Dimensions and Weight |
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| Dimensions | mm | 70 x 160 x 21 |
| Weight | g | 280 |
Z-METER CLIPS FOR WB TECs (OPTIONAL)
By default Z-Meter is optimized for measuring process of TECs with terminal wires or mounted on a header with pins. In case of TECs with WB pads there is a special solution for Z-Meters – WB clips. Z-Meter WB Clip is an optional accessory with stainless steel fixtures, manufactured by request for a specific TEC size. The compact instrument with spring clip fixation has 4-wires measuring method probes, that don’t damage TEC WB pads during measuring process. The clip has a terminal connector compatible with all Z-Meter versions.
Z-METER BNC ADAPTER (OPTIONAL)
Z-Meter can be used also with standard laboratory measurement equipment like 4-wires BNC Kelvin clips or similar tools with BNC connector. For such cases TEC Microsystems provides BNC adapter, that allows to work standard BNC cable sets. Z-Meter BNC adapter is compatible with all Z-Meter versions.
