et2010/- oxley uk, email sales@oxley.co.uk oxley inc. usa, email sales@oxleyinc.com tel: +44 (0) 1229 582621 tel: (203) 488 1033 fax: +44 (0) 1229 585090 fax: (203) 481 6971 features 13 www.oxley group.com electronic elapsed time indicator and event counter et2010/- this chapter contains product information for the electronic elapsed time indicator and event counter et2010/-. features ? total electronic circuitry. ? hours and/or events in a single package. ? eeprom non-volatile memory. ? 10 years data retention. ? printed circuit board mounting. ? remote interrogation with hand-held reader. ? nuclear survivability. for ordering information see page 16 . description the oxley electronic elapsed time indicator type et2010 is a pcb mounting device designed to record both elapsed time and events. it is encapsulated in a low profile, board mounting package and ideal for incorporation into equipment where individual printed circuit board monitoring is required. the small package size is highly suitable for systems where space is at a premium. the et2010 is available in 8 different versions, offering varying combinations of resolution and capacity. it is equipped with a synchronous output data signal which may be simply interfaced to an lcd display; alternatively the oxley et/hhr/3a hand-held reader may be used. for details of lcd driver circuitry, please contact the technical sales department . 7.62 mm 6 mm 4.57 1.5 2.54 ? 1 22.86 mm (0.9") ? 0.7 2.54 27.4 mm 13.4 mm pin 1
et2010/- oxley uk, email sales@oxley.co.uk oxley inc. usa, email sales@oxleyinc.com tel: +44 (0) 1229 582621 tel: (203) 488 1033 fax: +44 (0) 1229 585090 fax: (203) 481 6971 description 14 www.oxley group.com output waveforms ratings note : for 4.5 v d.c. to 10 v d.c. operation use the vcc (+5 v) pin. for 18 v d.c. to 33 v d.c. operation use the +28 v pin. supply voltages between 10 v d.c. and 18 v d.c. may be used providing an external resistor is also connected. for further information please contact the technical sales department . supply voltage 18 v d.c. to 33 v d.c. (def stan 61-5 part 6 compatible) supply current 600 m a max at 5 v d.c., 15 ma at 30 v d.c. timing accuracy 0.1% event signal ttl compatible event pulse width 0.1 m s to 8.0 ms event pulse frequency 50 hz max data retention 10 year min at 25 c operating temperature -55 c to +90 c storage temperature -55 c to +100 c load t clk = 0.9766 ms clk data load data load clk data
et2010/- oxley uk, email sales@oxley.co.uk oxley inc. usa, email sales@oxleyinc.com tel: +44 (0) 1229 582621 tel: (203) 488 1033 fax: +44 (0) 1229 585090 fax: (203) 481 6971 environmental standards 15 www.oxley group.com pin details environmental standards nuclear hardness maximum combined neutron & gamma ionising dose = 1550 cgy (si) maximum neutron fluence 10 12 n/cm/cm hand-held reader a hand-held reader ( et/hhr/3a ) to display the recorded data, is available to interface with the et2000 series eetis. the reader is battery powered, capable of interrogating the device without incrementing the data stored within, and has no requirement for the host equipment to be energised. when active, the reader automatically recognises the type of eeti connected and correctly formats the information. pin details +28 v positive supply (18 v d.c. to 33 v d.c.). this pin is compatible with supplies as defined by def stan 61-5 part 6 (pin 1). clk asynchronous clock pin for use with lcd display driver or oxley et/hhr/3a hand-held reader (pin 2). even t ttl compatible input for use when ttl event counting eetis are used. this pin is internally pulled down to 0 v using a 100 k w resistor and may be left unconnected when not required (pin 8). lcd asynchronous data pin for use with lcd display driver or oxley et/hhr/3a hand-held reader (pin 9). 0 v power supply common. used in conjunction with either +28 v or vcc (+5 v) (pin 10). vcc (+5 v) positive supply (4.5 v d.c. to 10 v d.c.). supplies exceeding this limit may be connected by inserting a series resistor (pin 11). load asynchronous data load pin for connection to lcd display driver or oxley et/ hhr/3a (pin 12). n.c no connection (pin 19). vaux positive supply connection for cold reads. providing no supply is present at either +28 v or vcc (+5 v) powering the device by this pin will inhibit all counting or timing functions. the voltage at this pin must be within the range 4.8 v d.c. to 6 v d.c. (pin 20). test specification nearest equivalent mil-std-202 method (except where stated) bump iec 68-2-29, 4000 bumps, 40 g no equivalent shock def stan 07-55 200 g, 3 ms, 1/2 sine wave, 18 shocks total method 213-2 comp i, 00 g, 6 ms, sawtooth vibration iec 68-2-6, 10-2000 hz 20 g method 20k cond d, 10-200 hz 20 g damp heat (steady state) iec 68-2-3, -55/90/21 method 103 cond b, 96 hours change of temp. iec 68-2-14, ta = 55 c, tb = 90 c, ti = 30 mins method 107 cond a
et2010/- oxley uk, email sales@oxley.co.uk oxley inc. usa, email sales@oxleyinc.com tel: +44 (0) 1229 582621 tel: (203) 488 1033 fax: +44 (0) 1229 585090 fax: (203) 481 6971 suggested circuit configura- 16 www.oxley group.com suggested circuit configurations et 2010/ - 4.5 v to 10 v d.c. operation et 2010/ - 18 v to 33 v d.c. operation ordering information when ordering please specify type number and quantity. type number resolution (hours) capacity (hours) event capacity et2010/1 1.0 999,999 - et2010/2 0.1 99,999.9 - et2010/5a 1.0 999,999 10 6 ttl et2010/5b 1.0 999,999 10 6 power up et2010/6a 0.1 99,999.9 10 6 ttl et2010/6b 0.1 99,999.9 10 6 power up et2010/7a 0.01 9,999.99 10 6 ttl et2010/7b 0.01 9,999.99 10 6 power up positive ttl common 1 2 8 9 1 2 1 1 1 +5 v loa d dat oxley et/hhr/3 +5 v loa d dat oxley et/hhr/3 positive ttl common 1 2 8 9 1 2 1 1 1
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