Model 450 Gaussmeter
Contents
1. VAC 100 VAC 120 VAC 220 VAC 240 VAC 120 ALL 100 VAC includes U S power cord 120 VAC includes U S power cord 220 VAC includes universal Europe power cord 240 VAC includes universal Europe power cord 120 VAC includes U S amp universal Europe power cords amp all fuses Accessories included 115 006 115 007 4060 MAN 450 Detachable line cord U S Detachable line cord European Zero gauss chamber Model 450 user manual Accessories available 4001 4002 4003 4004 CAL 450 CERT CAL 450 DATA CAL NS DATA RM RM 2 RJ 11 4 wire cable assembly used with RS 232C interface cable is 4 3 m 14 ft long RJ 11 to DB 25 adapter connects computer to RS 232C port RJ 11 to DE 9 adapter connects computer to RS 232C port IEEE 488 interface cable connects computer to IEEE 488 interface Cable is 1 m 3 3 ft long Instrument recalibration with certificate Instrument recalibration with certificate and data Calibration data for a new Model 450 Rack mount kit for one 2 rack gaussmeter in 483 mm 19 in rack Rack mount kit for two 1 2 rack gaussmeter in 483 mm 19 in rack One probe included additional probes ordered separately Custom probes available consult Lake Shore 614 891 2244 fax 614 818 1600 e mail info lakeshore com2. the live DC field reading Alarm On the alarm gives audible and visual indication of when the field value is selectively outside or inside a user specified range An output relay facilitates pass fail actuation e mail info lakeshore com E E Model 450 Gaussmeter Model 450 Rear Panel E eee Sl re EAL hH Ph a ee ee a ee el ee i TE LHe RR Pl ig iy come a me ee ee eee ee Line Input Assembly IEEE 488 Interface Serial 1 0 Interface Corrected Analog Output Monitor Analog Output Probe Input Ga USSM eter Hall Prob QS The Model 450 includes one of the Lake Shore probes listed below specify probe model number when ordering See page 24 for details on properly selecting a probe and for a complete listing of available probe models Axial Probes i Ped cn i 2 5 in 64 mm eb ____ 5 T _ 0 36 20 000 in diameter 9 4 20 76 men Active area Stem Frequency Usable full Corrected Operating Temp Temp material range scale ranges accuracy temp range coefficient coefficient rdg max zero max calibration MMA 2502 VH 2 in 0 25 in dia 0 015 in Aluminum 0 063 in 0 006 in 0 005 in MNA 1904 VH 4 in 0 187 in dia 0 005 in 0 125 in 0 005 in 0 003 in MMA 2502 VG 2 in 0 25 in dia 0 015 in 0 063 in 0 006 in 0 005 in MNA 1904 VG 4 in 0 187 in dia 0 005 in 0 125 in 0 005 in 0 003 in 30 G 300 G 0 2
3. 5 to Fiberglass 3 kG 30 kG 30 kG epoxy DC and 10 Hz 0 C to Aluminum to 400 Hz 75 C 0 09 G C 0 015 C 0 030 in dia approx 300 G 3 kG 0 15 to Fiberglass 30 kG 30 kG epoxy 0 13 G C 0 005 C Transverse Probes CALE el 2 5 in 64 mm L a length j F B 6 6 Ft 2 m Concer ete l i i Lopai 20 000 ia dimete ii E I 40 76 mmh L T Active area Stem Frequency Usable full Corrected Operating Temp material range scale ranges accuracy temp range coefficient coefficient rdg max zero max calibration MMT 6J04 VH 0 061 in 0 180 in Aluminum DC max 0 005 in 30 G 300 G 0 25 to 0 09 G C 0 015 C MNT 4E04 VH 0 045 in 0 150 in Rigid glass DC and 10Hz 3 KG 30 kG 30 kG Ain max 0 005in 0 150in 0 040 india epoxy to 400 Hz 0 C to MMT 6J04 VG 0 125in 0 061in 0 180in 0 050in approx 75 C max 0 005 in 300 G 3 kG 0 15 to 0 13 G C 0 005 C MNT 4E04 VG 0 045 in 0 150 in Rigid glass DC and 10 Hz 30 kG 30 kG max 0 005 in epoxy to 400 Hz Flexible Transverse Probes enon sia bd 2 5 in 64 mm 3 0 5 0 125 in 76 13 3 a OLS in diameter ma Onin 6 6 2m Gus 9 53 mm a a Lae E et jji L 0 36 40 030 in diameter 9 1 20 76 mm T a low T Active area Stem material Frequency Usable full Corrected Operating temp range scale ranges accuracy range coefficient coeffic
4. Resolution to 534 digits 1 part out of 300 000 Accuracy to 0 10 of reading Two line display Peak capture Analog voltage outputs IEEE 488 and serial interface Product Description Designed for demanding laboratory and materials analysis applications the Model 450 High Precision Hall Effect Gaussmeter has high resolution and low noise floor High performance is combined with ease of use frequently used features can be accessed by one or two keystrokes the message based display is bright and the keypad well defined As an added advantage the Model 450 includes a Lake Shore Hall probe Measurement Modes The Model 450 operates in DC RMS and Peak modes with superior accuracy and resolution in DC measurement mode Measurements to 53 digits are possible due to the low noise floor With low noise and high stability the Model 450 is ideal for field control or mapping applications Changing fields that are often used in material analysis systems can also be measured up to 18 times per second over computer interface with excellent resolution Best suited for linear power supply measurements or measurements of magnets and solenoids driven at line frequency RMS mode measures periodic AC fields from 10 Hz to 400 Hz Instrument circuitry accommodates wave forms with crest factors up to 7 with true RMS conversion Peak circuitry in the Model 450 captures single event peaks or monitors the peak amplitude of periodi
5. acy 0 10 of reading 0 005 of range DC temperature coefficient 0 05 of reading 0 003 of range per C DC precision No filter ranges lt 30 G 0 013 ranges gt 300 G 0 003 Filter ranges lt 30 G 0 0025 ranges gt 300 G 0 0007 AC RMS amp Peak Measurement AC display resolution 4 digits Peak Resolution Probe type Range RMS Resolution 300 kG 0 01 kG 0 01 kG 30 kG 0 001 kG 3 kG 0 0001 kG 300 G 0 01 G 30 kG 0 001 kG 0 001 kG 3 kG 0 0001 kG 300 G 0 01 G 30G 0 001 G 30 G 0 001 G 0 001 G 3G 0 0001 G 300 mG 0 01 mG AC RMS frequency range 10 Hz to 400 Hz AC RMS accuracy 2 of reading 50 Hz to 60 Hz AC RMS frequency response 0 to 3 5 of reading 10 Hz to 400 Hz All AC specifications for sinusoidal input gt 1 of range AC peak accuracy 5 typical AC peak speed 5 ms Front Panel Display type 2 line x 20 character vacuum fluorescent Display resolution To 5 digits Display update rate 5 rdg s Displays units Gauss G Tesla T Units multipliers u m K Annunciators RMS AC input signal DC DC input signal MAX Max Hold value s Relative reading R Remote operation Alarm on Keypad 21 full travel keys Front panel features Intuitive operation display prompts front panel lockout brightness control 1Filter set averaging 8 readings over 1 6 s www lakeshore com Lake Shore Cryotronics Inc Model 450 Gaussmet
6. c wave forms from 10 Hz to 400 Hz with reproducible single peak measurements to 5 ms rise time Instrument software accommodates indefinite hold time with no decay The Model 480 Fluxmeter is a good choice if faster peak or RMS measurements are required www lakeshore com Lake Shore Cryotronics Inc Model 450 Gaussmeter m E Model 450 Gaussmeter Lakeshore Range and Resolution When used with appropriate probes the Model 450 offers full scale ranges from 300 mG to 300 kG With 53 4 digit resolution DC field variations approaching 0 010 mG can be detected in larger DC fields resolution to 1 part in 300 000 is possible For RMS and peak measurements resolution is 43 4 digits or 1 part in 30 000 The filter feature of the Model 450 improves resolution in noisy environments by taking a running average of field readings DC mode requires filtering to achieve 53 4 digit resolution Interface The Model 450 is equipped with parallel IEEE 488 and serial RS 232C computer interfaces for command and data exchange maximum reading rate can be achieved with the IEEE 488 interface Nearly every function of the Model 450 front panel can be performed via computer interface The Model 450 also provides one corrected and one monitor analog voltage output Corrected for sensor linearity offset and temperature effects the corrected output is a DC voltage proportional to the display reading The monitor output is a real tim
7. e analog voltage proportional to the field Probes and Sensors The Model 450 is compatible with most Lake Shore gaussmeter Hall probes When ordering the Model 450 with one of the gaussmeter Hall probes on the following page a discounted package price is available Lake Shore probes are factory calibrated for accuracy and interchangeability Factory calibrated probes feature a programmable read only memory PROM in the probe connector so that calibration data can be read automatically by the instrument If the 614 891 2244 fax 614 818 1600 probe is equipped with a temperature sensor the Model 450 reads both temperature and field signal and continuously adjusts the calculated field value Lake Shore can also custom design a probe to meet your specific application requirements Display The Model 450 has a two line by 20 character vacuum fluorescent display During normal operation the display is used to report field readings and give results of other features such as max min or relative When setting instrument parameters the display gives the operator meaningful prompts and feedback to simplify operation The operator can also control display brightness Following are three examples of the various display configurations Normal Reading the default mode with the display of the live DC field reading MAM Max DC Hold On the maximum value is shown in the lower display while the upper display contains
8. er 6h Interfaces RS 232C capabilities Baud 300 1200 9600 Connector RJ 11 Update rate Up to 15 rdg s IEEE 488 capabilities Complies with IEEE 488 2 SH1 AH1 SR1 RL1 PPO DC1 DTO CO E1 Software support LabView driver Update rate Up to 18 rdg s Alarm Settings High and low set point Inside Outside Audible Actuators Display annunciator beeper Monitor analog output Configuration Real time analog voltage output Scale 3 V FS on selected range Frequency response DC to 400 Hz Accuracy Probe dependent Minimum load resistance 1 KQ short circuit protected Connector BNC Corrected analog output Configuration Voltage output generated by DAC Range 3 V 10 V for the Model 450 10 Scale User defined Resolution 0 366 mV Update rate 5 rdg s on display up to 18 rdg s with IEEE 488 interface Accuracy 0 1 of full scale in addition to measurement error Minimum load resistance 1 KQ short circuit protected Connector BNC General Ambient temperature 15 to 35 C at rated accuracy 5 to 40 C with reduced accuracy Power requirement 100 120 220 240 VAC 5 10 50 or 60 Hz 20 VA Size 216 mm W x 89 mm H x 318 mm D 8 5 in x 3 5 in x 12 5 in half rack Weight 3 kg 6 6 Ib Approval CE mark Ordering Information Part number Description 450 450 10 Model 450 Gaussmeter plus one probe Model 450 Gaussmeter with corrected analog output set to 10 V instead of 3 V Select a power configuration
9. ient rdg max zero max calibration MFT 3E03 VH 30 G 300 G 0 25 to 0 09 G C 0 015 C 0 135in 0 025in 0 125in 0 040 india Flexible plastic DC and 10 Hz 3 kG 30 kG 30 kG 0 C to 75 C eae MFT 3E03 VG max max 0 005 in approx tubing to 400 Hz 300 G 3 kG 0 15 to 0 13 G C 0 005 C 30 kG 30 kG i Temperature compensated probes www lakeshore com Lake Shore Cryotronics Inc 614 891 2244 fax 614 818 1600 e mail info lakeshore com Model 450 Specifications General Measurement Number of inputs 1 Update rate 5 rdg s on display up to 18 rdg s with IEEE 488 interface Measurement modes DC RMS Peak Probe compatibility Standard and custom probes Probe features Linearity Correction Temperature Correction Auto Probe Zero Measurement features Auto Range Max Hold Relative Mode Filter Probe connector 15 pin D style DC Measurement DC display resolution 5 digits with filter 43 4 digits without filter Probe type Range Resolution w Filter HST Probe 300 kG 30 kG 3 kG 300 G HSE Probe 30 kG 3 kG 300 G 30 G UHS Probe 30 G 3G 300 mG Resolution w out Filter 0 001 kG 0 0001 kG 0 00001 kG 0 001 G 0 01 KG 0 001 kG 0 0001 kG 0 01 G 0 0001 kG 0 00001 kG 0 001 G 0 0001 G 0 001 kG 0 0001 kG oje e Ss epee 0 0001 G 0 00001 G 0 001 mG O Plo HSS 3 eple E DC accur
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