- Accuracy is ± (0.03% of reading + 0.03% of full scale) with LPT-130 or MPT-132 probe
- Resolution of 1 part in 12,000
- Ideal to use in tandem with a temperature-compensated Group3 hall probe
- 4 ranges (0.3, 0.6, 1.2, 3.0 T)
- Maximum field 3 Tesla
- 6 digit display (5 digit, plus sign)
- RS232 Serial communications
- Bench top model
DTM-133 Digital Teslameter / Gaussmeter
- Temperature coefficient is 80 ppm / ° C when used with LPT-130, or 140 ppm / ° C when used with MPT-132 probe.
- Accuracy and temperature specifications include performance of probe.
- The probe's characterisation information is stored in the probe assembly itself so any Group3 probe can be used with any Group3 DTM. However, for probes without temperature compensation such as MPT-132 and LPT-130, the DTM-133 is the most appropriate teslameter to use.
- Two buttons on the front panel are used to select the operation of the teslameter. The following modes can be selected for the display - magnetic field, peak hold of magnetic field, AC component of field.
- Digital filtering (time averaging) can be enabled to suppress short term fluctuations.
- Several teslameters with the serial communications option (up to 31) can be formed into a local communications loop, all of them talked to by the one serial port on the control computer. The system can be operated in a trigger mode, where the timing of the measurements by several teslameters can be synchronised
- Internal switches select serial data format, baud rate, device address, string terminators, filtering, gauss or tesla units, data format, service request action, EOI action, and reset system to defaults.
- An analog output is available. This is a buffered version of the raw probe signal, and is not corrected for linearity or temperature. It offers an instantaneous field value, (0 to 9kHz)
- All models are available without display or front buttons, for true “Black Box” requirements.
- Panel mount versions are available, and panels with correct cut-outs and mounting hardware.
- The operating temperature range of the probe and instrument is 0 to 50 ° C
Absolute Accuracy
0.03% of reading ± 0.03% of range at 25° C
Temperature Stability with LPT-130 probe
- scale factor: -80 ppm of reading / ° C max.
- Zero drift: ± (12µ T + 0.0015% of full scale ) / ° C max.
- Effect of probe cable: Add -3ppm / ° C for each metre of probe cable.
Temperature Stability with MPT-132 probe
- scale factor: ± (40µ T + 0.0003% of full scale ) / ° C max.
- zero drift: ± (15µ T + 0.0010% of full scale ) / ° C typical. ± (40µ T + 0.0015% of full scale ) / ° C max.
- effect of probe cable: add -3ppm / ° C for each metre of probe cable
Frequency
DC, or in AC mode 8 to 3,000 Hz
Update rate
10 fully corrected measurements per second
Display
7 digit, red LED. 8 additional indicators for range, units, peak hold and filter
Enclosure
All metal, with tilt stand on bench models, bezel mount on rack models
Dimensions
217 x 125 x 50mm, weight 1.2 kg
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