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Automess 6150AD1, Руководство по эксплуатации

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7.2  Dose Measuring Ranges

Resolution of digital dose indication and a certain minimum pulse count determine the beginning of a

dose measuring range. The end of the range corresponds to a 10 hour operation at the maximum dose rate

the detector is specified for (except for pulse probes). For example, the end of the dose range of the

6150AD1/3/5 is equal to 999 mSv/h   10 h = 9.99 Sv.

6150AD1/2

6150AD3/4/5/6

6150AD1 internal tube

6150AD3/5 internal tube

 5 µSv -

 9.99 Sv

 0.2 µSv -  9.99 Sv

6150AD2 internal tube

6150AD4/6 internal tube

 5 µSv -

 99.9 mSv

 

 0.1 µSv -  99.9 mSv

probe 6150AD-18

5 µSv -

 99.9 mSv

 0.1 µSv -  99.9 mSv

probe 6150AD-15

5 µSv -

 9.99 Sv

 0.4 µSv -  9.99 Sv

probe 6150AD-t

5 µSv -

 9.99 Sv

 0.1 µSv -  9.99 Sv

probe 6150AD-b (with 6150AD5/6 only)

 0.05 µSv -

 999 µSv

As can be seen from the table, the beginning of the dose measuring range of a Sv-probe does not only

depend on the probe type itself, but also on the 6150AD model used as a meter.

8.  Fixed Alarm Thresholds

This section summarizes numbers and values of the thresholds for dose and dose rate that were preset at

the factory. Among those preset values are default thresholds for the internal tube and the probes. After

switching on, the default threshold for the internal tube is active. After connecting a probe, the default

threshold for that probe type is active. If you select a non-default threshold for the internal tube, the

6150AD will remember that threshold across the intermediate use of a probe, which means that after

connecting and disconnecting a probe that threshold will be active again. If you select a non-default

threshold for a probe, that threshold will be forgotten after the probe was disconnected, which means that

after reconnecting the probe the probe’s default threshold will be active again. All this applies to both

dose rate alarm threshold and dose alarm threshold.
The 6150AD3/4/5/6 allows to program thresholds for the internal tube and for all probe types to any

value within the detector’s range. Such a custom-made threshold replaces the »OFF« state and is active

after switching the instrument on or after connecting a probe, respectively. This means that the

custom-made threshold takes precedence over the preset default value. However, the set of fixed

thresholds is still available for selection by means of the signal key. This also applies to both dose rate

alarm threshold and dose alarm threshold.

Page 28

Operating Manual 6150AD

03/2004

Daimlerstrasse 27

Telefon  +49(0)6203-9503-00 http://www.automess.de

USt.-ID-Nr. / VAT ID No.

D-68526 Ladenburg Telefax  +49(0)6203-9503-29 eMail: [email protected] DE 144 458 420

Содержание 6150AD1

Страница 1: ...50AD6 6150AD1 H to 6150AD6 H 6150AD1 E to 6150AD6 E Daimlerstrasse 27 Telefon 49 0 6203 9503 00 http www automess de USt ID Nr VAT ID No D 68526 Ladenburg Telefax 49 0 6203 9503 29 eMail info automess...

Страница 2: ...5 3 Automatic Battery Warning 14 5 4 Switching On and Off Erase Function of the On off Key 15 5 5 Illumination Key 16 5 6 Signal Key Loudspeaker Key 16 5 7 Functions called by the Function Key Arrow...

Страница 3: ...150AD6 H and E models 34 10 Time Constant and Standard Deviation 35 11 Radiological Check 36 12 Programming the 6150AD3 4 5 6 38 12 1 Individual Dose Rate Alarm Threshold 39 12 2 Individual Dose Alarm...

Страница 4: ...Daimlerstrasse 27 Telefon 49 0 6203 9503 00 http www automess de USt ID Nr VAT ID No D 68526 Ladenburg Telefax 49 0 6203 9503 29 eMail info automess de DE 144 458 420...

Страница 5: ...0AD supports various probes for various applications measurement of low or high dose rate photon radiation detection of alpha and beta radiation measurement of contamination of solids or liquids There...

Страница 6: ...nnecting a 6150AD b probe or some other unknown probe type Therefore we created the models 6150AD5 and 6150AD6 which will also identify the 6150AD b probe We also used this occasion to add as a new fu...

Страница 7: ...ame measuring quantity However you have to be careful to add the measuring quantity when documenting your readings An alternative would be to design the H 10 models of 6150AD and probes in such a way...

Страница 8: ...re release 2 became necessary because of the increased functionality of models 6150AD3 and 6150AD4 When hardware release 2 could no longer be manufactured because some of the electronic components wer...

Страница 9: ...he table below summarizes compatibility between 6150AD meters and probes Compatibility with Probes Probe Meter 6150AD1 6150AD6 6150AD1 H 6150AD6 H 6150AD1 E 6150AD6 E Sv probes for HX or JS yes yes er...

Страница 10: ...ated from the electronics compartment by a watertight dividing wall to prevent moisture or other impurities from entering the interior of the instrument when the battery is replaced Two eyelets at the...

Страница 11: ...ey to select various functions symbol 3 Illumination key symbol 4 Signal key for audible signals and selecting alarm thresholds symbol 3 6 Probe Socket A socket on the left hand side of the instrument...

Страница 12: ...e disabled by pressing the signal key If the loudspeaker symbol in the upper right corner of the LCD is visible audible single pulse detection is enabled Note that the piezo buzzer cannot emit more th...

Страница 13: ...le is checking the instrument with a check source This requires an accurate reading and then comparing that reading with some reference value obtained earlier What then matters is the comparison of tw...

Страница 14: ...e true value is outside that range Taking three standard deviations 3 3 9 instead of one results in a range of 100 9 that is 91 to 109 The probability that the true value is within that range is as hi...

Страница 15: ...he probe dose the dose measured with a probe in the same way the probe dose is always zero when connecting the probe it cannot be cleared during operation and it will be lost after disconnecting the p...

Страница 16: ...is factory setting The post alarm increment applies to the internal tube and to all probes If set to no post alarm only one dose warning will occur when the dose reaches the alarm threshold The post...

Страница 17: ...also in the long term Calibration is done at two dose rates therefore the instrument has two calibration parameters One parameter compensates the spread of sensitivity of the tubes the other compensat...

Страница 18: ...hen twisted approx 45 counter clockwise To close the compartment align the twist locks according to their grooves and those on the cover slightly press down the cover press down the twist locks and tu...

Страница 19: ...no matter which state it is currently in The 6150AD3 4 5 6 has to be in dose rate indication state while in this state press the on off key twice within three seconds After the second push the instru...

Страница 20: ...e rate alarm threshold Indication of dose rate maximum value Indication of dose Indication and selection of dose alarm threshold with 6150AD3 4 5 6 only Indication of battery voltage Indication of cal...

Страница 21: ...ly with a 6150AD5 6 as a meter The digital dose rate indication always comprises three digits Section 6 1 describes the format in detail The loudspeaker symbol in the upper right corner indicates whet...

Страница 22: ...obe type ext xy added Indication of relative standard deviation may range from 0 1 to 99 If the standard deviation is greater than 99 or if no pulses were counted so far the instrument will display 99...

Страница 23: ...s after the decimal point The dose of pulse probes that is the pulse count is always represented as an integer value Note that the bar does not indicate the dose on a Sievert scale this is why there a...

Страница 24: ...e threshold is modified If you move from a greater threshold to a smaller one you may trigger dose alarm With pulse probes the threshold is a pulse count threshold For your convenience you may use a p...

Страница 25: ...parameters The example shows a high range tube with 3d as parameters and a low range tube with 78 as parameters With hardware releases 1 and 2 the signal key has no function in this state With hardwar...

Страница 26: ...0 pulses per second 6 1 Dose Rate There are eight dose rate ranges that cover two decades each Two adjacent ranges always overlap by one decade Although it has a total of four digits the display conta...

Страница 27: ...and 1 00_ 9 99_ probe 6150AD t 0 00_ 9 99_ _2 00 _9 99 and 10 0_ 99 9_ _20 0 _99 9 and 100_ 999_ 0 200 0 999 and 1 00_ 9 99_ _2 00 _9 99 and 10 0_ 99 9_ _20 0 _99 9 and 100_ 999_ 0 200 0 999 and 1 00...

Страница 28: ...cause one cannot foresee the range of a future pulse probe the 6150AD 0 range goes up to 999 kS 1 that is approx 1 MHz which is about the maximum count capacity of the 6150AD That high range is a rese...

Страница 29: ...probe 6 4 Dose Rate Maximum Value The range of the dose rate maximum value is the same as for the dose rate alarm threshold see preceding section except that the range is extended by one place after t...

Страница 30: ...ically be restricted to the dose range of the corresponding detector internal tube or probe When exceeding the highest range the flashing full scale value 9 9 will indicate overrange 6 6 Dose Alarm Th...

Страница 31: ...certain limit Usually such requirements are more difficult to fulfil at low dose rate values than at high ones Therefore in most cases the beginning of a measuring range will be above the beginning of...

Страница 32: ...for the internal tube is active After connecting a probe the default threshold for that probe type is active If you select a non default threshold for the internal tube the 6150AD will remember that t...

Страница 33: ...may vary see section 6 3 2 The option OFF warning disabled appears differently according to the model when indicating the dose rate alarm threshold the 6150AD1 2 leaves the digital display blank where...

Страница 34: ...h both errors almost compensate leaving an error of only 2 0 7 1 4 0 98 1 00 2 For H 10 models there is no separate but a combined requirement for energy and directional dependence It says that for al...

Страница 35: ...ular range of 45 will change response only by a few percent making a graphical representation unnecessary 0 0 5 1 1 5 10 100 1000 10000 Energy keV Response normalized to Cs 137 0 0 5 1 1 5 0 15 30 45...

Страница 36: ...l change response only by a few percent making a graphical representation unnecessary 0 0 5 1 1 5 10 100 1000 10000 Energy keV Response normalized to Cs 137 0 0 5 1 1 5 0 15 30 45 60 75 90 105 120 135...

Страница 37: ...lar range of 45 will change response only by a few percent making a graphical representation unnecessary 0 0 5 1 1 5 10 100 1000 10000 Energy keV Response normalized to Cs 137 0 0 5 1 1 5 0 15 30 45 6...

Страница 38: ...l change response only by a few percent making a graphical representation unnecessary 0 0 5 1 1 5 10 100 1000 10000 Energy keV Response normalized to Cs 137 0 0 5 1 1 5 0 15 30 45 60 75 90 105 120 135...

Страница 39: ...D b1 0 06 0 6 6 60 S 1 6150AD 17 0 08 0 8 8 80 S 1 6150AD 19 0 1 1 10 100 S 1 6150AD 0 Note however that the 6150AD performs more than the diagram suggests The time constant shown in the diagram only...

Страница 40: ...NOTE Conditions have to be stable when measuring the mean value Consequently the check source must be in place before the measurement starts Since measurement starts when the 6150AD is switched on yo...

Страница 41: ...1 289 21 0 1 625 1 5 1 035 11 5 1 304 21 5 1 643 2 0 1 047 12 0 1 320 22 0 1 662 2 5 1 059 12 5 1 335 22 5 1 682 3 0 1 072 13 0 1 350 23 0 1 701 3 5 1 084 13 5 1 366 23 5 1 721 4 0 1 097 14 0 1 382 24...

Страница 42: ...least ten years There are two ways to exit programming mode Either you quit without saving data by pressing and releasing the on off key and thus switching the instrument off or you save the indicated...

Страница 43: ...but also to view programmed data If you do not wish to modify the threshold press the function key to move to the next programming function see next section If you wish to modify the threshold press...

Страница 44: ...to modify that threshold press the function key to move to the next programming function see next section If you wish to modify the threshold press the signal key Now you get access to the digits of t...

Страница 45: ...the signal key accordingly Store the new unit by pressing and holding down the on off key and then pressing the function key Note that this will also reset all data to factory settings and clear the i...

Страница 46: ...a standard AC adapter the output of which is connected to a pair of contacts reproducing the shape of a 9V battery You have to remove the battery cover and the battery to insert the 6150AD into that h...

Страница 47: ...ntial direction max 40 max 40 Analog dose rate range Digital dose rate range 1 Sv h to 1000 mSv h 0 0 Sv h to 999 mSv h 0 1 Sv h to 10 mSv h 0 00 Sv h to 9 99 mSv h Instrumental background 20 nSv h 20...

Страница 48: ...ntermittent sound may be reset visually through flashing loudspeaker symbol with E models the analog scale divisions additionally flash Dose alarm with 6150AD3 4 5 6 H E audibly through intermittent s...

Страница 49: ...ding to DIN 40050 Buzzer piezo buzzer inside the housing Dimensions 130 x 80 x 29 mm Weight approx 400 g Carrying strap plastic easy to decontaminate length 1 m 14 2 Source Holder 761 1 Application ho...

Страница 50: ...ative voltage for the interface only which would have meant useless extra effort Apart from extremely rare exceptions the 6150AD s non standard ground level will not cause any problems Interface param...

Страница 51: ...ent on the base of 2 exponent range 128 to 127 and an unsigned positive 16 bit mantissa range 4000H to 7FFFH 0000H for zero with the weight of 2 15 The following BASIC program fragment shows how to co...

Страница 52: ...mode noSt Stor Instrument switches itself off with external probe Release first then Press and release Press Start The instrument is switched off If alarm thresholds for a probe type are to be progra...

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