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G91, G92Handheld single dimensional Gaussian meter |

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G91 and G92 Gaussmeters are high-performance handheld single dimensional Gaussmeters launched by Koehler Technologies GmbH in Germany, which can be used for scientific research, laboratories, industry, manufacturing and other users. The 3.2-inch color industrial touch screen provides rich display content, with functions such as maximum/minimum/hold value/magnetic pole/alarm threshold, real-time magnetic field strength, time-domain graph, etc. The G92 Gaussian meter has the widest frequency response range in the world, DC -100kHz.
The DC basic accuracy of Gaussian meter G91 is 2%, with a resolution of 0.2G (20 μ T), a range of up to 30kG (3T), and a frequency response range of DC-10kHz. Radial probe, axial probe, and ultra-thin probe (0.5mm) can be selected.
The DC basic accuracy of Gaussian meter G92 is 1%, with a resolution of 0.1G (10 μ T), a range of up to 100kG (10T), a frequency response range of DC-100kHz, and very low zero drift. The G92P Gaussian meter has a sampling frequency of up to 2000kSPS, allowing it to capture positive and negative pulse magnetic fields with a width of only 200 μ s. This is an ideal choice for most magnetizers and other fast pulse applications.
Users can choose from various types of probes: radial probes, axial probes, miniature axial probes (diameter ≤ 2mm), wide range probes (10T), high-frequency probes (100kHz), high temperature resistant probes (≤ 160 ℃), ultra-thin probes (0.5mm), and probes with built-in temperature sensors. The conventional probe of Gaussian meter G92 does not include a temperature sensor,Its typical temperature coefficient is ± 500ppm/℃The probe with built-in temperature sensor has temperature compensation function, which can improve the accuracy and stability of measurement data when the temperature changes. Therefore, it is strongly recommended to purchase a probe with built-in temperature sensor.
Gauss meters G91 and G92 have passed CE certification and EMC (electromagnetic compatibility) testing.
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characteristic |
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● Ergonomic design
● Graphical interface operating system
● 3.2inchLCDcolorful touch screen
● Maximum value/minimum value/hold function
● Time domain graph display and alarm function
● SperhapsNMagnetic pole display
● Intelligent recording and viewing
● Rechargeable batteries can work continuously for more than24hour
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● G91: Accuracy2%, with a range of up to30kG
● G91:frequency responseDC- 10kHz
● G92: Accuracy1%, with a range of up to100kG
● G92Frequency responseDC- 100kHz
● G92High temperature resistant probe(≤160℃)
● G92Optional probe with built-in temperature sensor
● G92Miniature axial probe(diameter≤2mm)
● G92P:200μsPeak Sampling Mode
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Application industry
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Military industry, universities and research institutions, laboratories, industry, manufacturing, food processing industry, toy industry, etc.
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Application Cases
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1. Magnetic toy magnetic field detection (meets the magnetic field detection standards of toys in various countries and has been widely used in toy testing laboratories of major metrology institutes and entry-exit inspection and quarantine bureaus, such as Fujian Quality Inspection Institute, Shenzhen Metrology Institute, Dongguan Metrology Institute, Ninghai entry-exit inspection and quarantine bureau, etc.); 2. Monitoring of magnetic materials in food production lines, such as magnetic field detection of magnetic shelves at the material inlet of Arrow candy production lines and magnetic field detection of spare parts in Heshuo computer production lines; 3. [G92] High frequency magnetic field detection, such as circuit board induction welding environment magnetic field detection, etc; 4. [G92] Ultra strong magnetic field detection, such as magnetic field detection of superconducting magnets; 5. Narrow space (gap) magnetic field detection; 6. [G92] Pulse magnetic field detection, high temperature environment magnetic field detection; 7. Surface magnetic field detection of permanent magnet materials; 8. Detection of working magnetic fields for DC motors, speakers, magnetic separators, and permanent magnet separators.
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Graphical interface operating system
Germany's Koley has developed the first industrial handheld watch operating system (graphical interface operating system), which allows users to operate by touchG91andG92Gauss meter, efficient and convenient.
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display style
colorLCDThe display screen displays various data such as time, real-time magnetic field strength, polarity of magnetic poles, maximum and minimum values, annotations, alarm thresholds, time-domain graphs, etc.
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Intelligent recording and viewing
A detailed record list is provided, allowing users to view the details of each measurement data.
By clicking on any record list, users can see the complete stored information, which is displayed in a format similar to a screenshot and can be accompanied by notes for each record.
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Magnetic field polarity indication
G91andG92Gauss meter, in the form of colored dynamic cartoon images, clearly indicates the polarity of the magnetic field. This screen is from“Polarity indication mode”And displayed in colorLCDOn the screen.
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3D Mobile Platform
The 3D mobile platform is made of non-magnetic materials. The user fixes the probe at the front end of the bracket and manually rotates the knob to make the probe move alongX,Y,ZMove steadily in the axial direction to a certain position and lock it in place. The maximum stroke of each axis is150mmThe positioning accuracy is0.1mm.
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Zero cavity calibration
exist500GIn the following magnetic fields, the zero calibration cavity provides up to80Decibel attenuation, used for zero calibration of standard probes. Internal dimensions of the cavity: diameter6.8mm x 44.5mm.
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SMARTsoftware
SMARTComputer software has rich functions: it can automatically record and display trend charts and curves; Real time display of magnetic field strength, maximum and minimum values; Can export data saved by the Gaussian meter host; Real time recording and storage of magnetic field strength data, etc.

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Probe metal sleeve
The entire series of probes of the Koleos meter are protected by metal sleeves, which can be tightened and fixed with the probe handle to protect the probe from damage caused by impact, compression, etc. It is strongly recommended that users tighten and secure the metal sleeve after completing the magnetic field measurement.
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Gauss meterG92Unique features of |
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200µsPeak Sampling Mode
G92PThe Gaussian meter has the function of capturing extremely short pulse magnetic fields and rapidly changing magnetic field intensity peaks, and can capture up to200μsThe peak value of magnetic field pulses.(This function is an optional feature)
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Temperature compensation function
Conventional probes do not include temperature sensors, and their typical temperature coefficient is±500ppm/℃The probe with built-in temperature sensor has temperature compensation function, which can improve the accuracy and stability of measurement data when the temperature changes. Therefore, it is strongly recommended to purchase a probe with built-in temperature sensor.
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High temperature resistant probe
Thanks to the most advanced sensor technology and excellent design, the high-temperature resistant probes manufactured by Koley Company have a rare operating temperature range:-20℃arrive+160℃ (-4℉arrive+320 ℉).
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High frequency probe
Using special anti electromagnetic interference alloy materials and excellent process design, the high-frequency probe of Koley Company is specifically used to measure AC magnetic fields in strong electromagnetic radiation environments, with strong anti-interference ability and frequency response rangeDC- 100kHzThe shape and length of the high-frequency probe can be customized.
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G91andG92Gaussian meter parameters:
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model |
G91 |
G92 / G92P |
Measurement parameters |
accuracy(DC) |
±2% Reading ± 0.2% |
FS |
±1% Reading ± 0.1% |
FS
range
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300G, 3kG, 30kG
(30mT,
300mT, 3T)
300G, 3kG, 30kG
(30mT,
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300mT, 3T) |
or |
1kG, 10kG, 100kG |
(0.1T, |
4 |
4 |
1T, 10T) |
Highest resolution |
0.2G(0.02mT) |
0.1G(0.01mT) |
Display digits |
display resolution |
0 |
999.9G |
0.1G(0.01mT) |
0.1G(0.01mT) |
1000G~9999G1G(0.1mT)1G(0.1mT) |
≥10kG |
10G(1mT) |
10G(1mT) |
Frequency response range[f |
T]DC- 10kHzDC- 100kHzTypical temperature coefficient
±800ppm/℃±500ppm/℃(
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Conventional probe |
)±100ppm/ |
℃( |
Probe with built-in temperature sensor |
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Typical zero drift0.1G/℃0.02G/ |
℃ |
Peak sampling function |
3.2NOG92PThe Gaussian meter has a fast pulse capture function that can capture up to |
200μs |
Peak value of magnetic field pulsefront paneldisplay screenInch color resistive touch screen, |
320 x 240pixelDisplay unitsGaussian(G)Tesla |
(T) |
3Gaussian(G)Tesla |
(T) |
Ampere per meter(A/m)Display update rateorder |
/ |
second |
display modeDC、ACMaximum value, minimum value, alarm, polarity display, time-domain graph, etc |
probe |
Compatible probes1.5details30“ |
Probe specifications” |
list |
1Probe cable lengthstandardRice; The maximum length that can be customized is
2riceUSBinterfacefunctionCommunication interface: used for connectingPCMonitor and measure with Gaussian meter host;
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Charging interface: used for connectingPCOr a portable power bank |
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power bank |
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+15Charge the Gaussian meter host.software/driveUpper computer software, no need to install other driversHost specifications
-10operation temperature℃to+35℃(
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accuracy rating |
)℃to+60 |
℃ |
( |
Reduced accuracy |
)storage temperature- 20 |
℃ |
to +75℃Environmental magnetic field<>battery |
rechargeable |
4500mAH |
Lithium Ion Battery |
Battery operating time |
>24 |
hour(Standard Test Environment) |
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sizetwo hundred and thirty-eightmm W × 95 mm H × 42 mm D |
weight350g |
authentication |
CE |
Certification |
EMC |
authentication |
only |
G92Function of Gaussian meter: Analog output Linearity |
(DC) |
±2% FS |
function |
Real time output, output voltage proportional to magnetic field strengthFull range voltage±3 V |
Proportional relationship |
3 Vcorresponding to |
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Selected range gear |
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response frequencyDC - 30 kHz |
Simulate output impedance |
< 100='' ω=''> |
Short circuit protection |
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connect
BNC
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Analog output conversion cable
Probe specificationsG91Gaussian meter probe
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probe Typerange
resolutionFrequency response rangeProbe size
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(mm) |
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operation temperature
(
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℃
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DC
accuracy
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(25 |
℃ |
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Surface material of probe rod |
Standard radial probe |
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T08M150G91
30kG
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(3T)
0.2G
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(20μT)
DC-10kHz
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80*2.2*1 |
-20 ~ +75 |
±2% |
copper |
Standard axial probe |
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A08M150G9130kG
(3T)
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0.2G
(20μT)
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DC-500Hz
130*Φ6
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-20 ~ +75 |
±2% |
aluminium |
0.5mm |
Ultra thin probe |
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T06U150G9130kG |
(3T) |
0.2G |
(20μT) |
DC-5kHz |
60*2.5*0.5
-20 ~ +75
±2%
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Polymer materials
G92 /G92PGaussian meter probe
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probe Typerange
resolutionFrequency response rangeProbe rod
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size |
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(mm)
operation temperature
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℃
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DC
accuracy
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(25 |
℃ |
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Surface material of probe rod |
Standard radial probe |
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T08M150G92
T08M150G92T
30kG
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(3T)
0.1G
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(10μT)
DC-30kHz
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80*2.2*1 |
-20 ~ +75 |
±1% |
copper |
Plastic radial probe |
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T08P150G92
T08P150G92T
30kG
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(3T)
0.1G
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(10μT)
DC-30kHz
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80*2.5*1.3 |
-20 ~ +75 |
±1% |
plastics |
Wide range radial probe |
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T08W150G92
T08W150G92T
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100kG
(10T)
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0.1G
(10μT)
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DC-30kHz |
80*2.2*1 |
-20 ~ +75
±1%copperHigh temperature radial probeT40H150G9230kG
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(3T) |
0.1G |
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(10μT)
DC-30kHz
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400*4.5*1
-20 ~
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+160
(-4
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℉ |
- +320 |
℉ |
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±1% |
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copper
High frequency radial probe
T03HF030G92
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30kG
(3T)
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0.1G
(10μT)
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DC-100kHz |
30*2.2*1 |
-20 ~ +75 |
±1% |
copper |
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Standard axial probe
A08M150G92
A08M150G92T
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30kG
(3T)
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0.1G
(10μT)
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DC-1kHz |
130*Φ6 |
-20 ~ +75 |
±1% |
aluminium |
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Wide range axial probe
A08W150G92
A08W150G92T
100kG
(10T)
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0.1G
(10μT)
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DC-1kHz
130*Φ6
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-20 ~ +75 |
±1%
aluminium
Miniature axial probe
A08M150G92A
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A08M150G92B |
A08M150G92C |
A08M150G92D |
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30kG(3T)
0.1G
(10μT)
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DC-1kHz
80*Φ2
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80*Φ1.5
80*Φ1.2
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80*Φ0.9 |
-20 ~ +75 |
±1% |
copper |
0.5mm |
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Ultra thin probe
T06U150G92T06U150G92T30kG(3T)0.1G(10μT)DC-10kHz
60*2.5*0.5-20 ~ +75±1%Polymer materials
Note:1The model contains letters at the end“T”The probe with built-in temperature sensor has temperature compensation function, and its typical temperature coefficient is±100ppm/ ℃;
2Complete calibration range for each probe:≤±2T(±20kG);
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3 |
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The probe is only compatible with the corresponding model of host. For example, we cannot |
G92 |
Insertion of Gaussian meter probe |
G91Gaussian meter is used.480Sensor center position (radial probe):6.8Metal probe:D=1mm±0.2mmPlastic probe: |
D=1.2mm±0.2mm |
OptionstypedescribeZC10School zero cavity: in |
500G |
In the following magnetic fields, up toDecibel attenuation, used for zero calibration of standard probes. Internal dimensions of the cavity: diametermmx 44.5 |
mm |
CAB30 |
BNC |
Analog output conversion cable(Only used for Gaussian metersG92)SAMRT PC SoftwareComputer software for Gauss meter(Comes with the instrument)STD30 |
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Host bracket |
GHOLD100The three-dimensional mobile platform of the probe is made of non-magnetic materials. The user fixes the probe at the front end of the bracket and manually rotates the knob to make the probe move alongX, Y, ZMove steadily in the axial direction to a certain position and lock it in place. The maximum stroke of each axis is150mmThe positioning accuracy is |
0.1mmCentral load10kg, self weight3.5kgThe most commonly used kitKit Product NumberG9201 |
Gaussian meter hostG92+probeT08M150G92Kit Product NumberG9202 |
Gaussian meter hostG92 +probeT08M150G92 +Zero cavity calibrationZC10Kit Product NumberG9101 |
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Gaussian meter host |
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G91+ |
08 |
probe |
150 |
T08M150G91 |
Kit Product Number |
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G9102
Gaussian meter hostG91+
probeT08M150G91 +
Zero cavity calibration
ZC10
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Probe selection type description
T
M
G92
T
probe Type
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A -
Axial probeT -radial probe
X - 2 AXISY - 3 AXISProbe length
06 - 6 cm08 - 8 cm10 - 10 cm
25 - 25 cm
…
Probe styleC–
CRYOGENICF
–FLEXIBLEH
–
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HIGH TEMP.
L – LOW FIELD
M – METAL
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P
–9PLASTICS
– SMALL RANGE9U–
ULTRATHIN9W – WIDE FIELDProbe cable length
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150 – 150cm
…
Gaussian meter typeG
1 – G91 probe
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G |
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2 – G |
92 probe G |
3 – G 93 probe |
Temperature compensation function(Probe with built-in temperature sensor) |
T - |
have |
BLANK - |
not have |
Comparison with competitors |
contrast |
COLIY |
MODEL G92 |
FWBELL |
3.2MODEL 5180 |
accuracy |
(DC) |
1%1%maximum range |
3100kG (10T)30kG (3T)Frequency response rangeDC- 100kHz |
DC- 25kHz |
displayInch color touch screen |
Black and white screenDisplay digits * |
4 ( |
give an example: |
5678G) |
1/2 |
( |
give an example: |
5.68kG) |
Typical temperature coefficient |
±500ppm/ |
℃±870 - ±950ppm/℃Probe protective cover |
metal |
Soft plastic |
operateTouch Screen |
key |
Polarity display function |
havenot have |
High temperature resistant probe |
(≤+160 |
℃ |
) |
have |
not have |
Wide range probe |
(10T) |
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have
not haveHigh frequency probe(100kHz)
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have |
not have |
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Intelligent viewing and storage functionhave
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