w. analog w devices microprocessor based autoranging rtd ;thermistor meter features temperature ranges: - 328f to + 1562f -200c to +850c autoranging: 0.1 from -199.9 to + 199.9; 12:200 sensor selection (ad2060): rtd 1000 platinum 0: = 0.00385, 0.00390, 0.00392 or 22520 thermistor universal meter (ad2061) sensor user programmable switch selectable sensor configuration: 2, 3 or 4-wire 7-bit ascii character serial data output automatic self-calibration for gain, offset, excitation and sensor linearization optional linearized analog voltage output: 1mv/degree optional isolated 20ma ascii loop/ttl serial outputs applications temperature monitoring in laboratory, manufacturing and quality control environments process control temperature measurements remote data logging general description the ad2060/ad2061 are high performance single channel 3vz digit rtd/thermistor meters that can measure temperature accurately between - 328f and + l562f (- 200c and + 850c). both meters offer autoranging from o.loc/f to 1c/f. the ad2060 is supplied factory programmed for one of four sensor types: 1000 platinum rtds: a =0.00385, 0.00390, 0.00392 or a 22520 thermistor. the ad2061 is a universal meter in which the user selects one of the four sensor types via switch program- ming. the microprocessor based ad2060/ad2061 provides gain, offset and excitation error correction, linearization and c/ of scaling in firmware. the ad2060/ad2061 display temperature information on large 0.56"(l4.3mm) high leds. digital infor- mation is provided in 7-bit standard ascii character serial 'wire rto over- voltage protection . open sensor detection integrator control self-calibration channel select format with baud rate selection for easy interface to printers, terminals and other peripherals. for remote data acquisition applications, an optional isolated 2-wire 20ma ascii serial loop/ttl compatible interface is available. for driving recorders or other analog instruments, an optional linearized analog voltage output of lmv/degree is available. selection of dc or of scaling is accessed by removing the front panel lens and setting the selector switch to its proper position. the ad2060/ad2061 can be ordered in one of the following power versions: l20v ac, 240v ac or +7.5v de to +28.0v de. input voltage protection of l80v peak (rtd short to ac line), common-mode voltage to l400v peak (ac version) with overrange and open sensor detection is provided. these meters are rated for operation over the 0 to +40c temperature range. each ad2060/ad2061 is burned-in for 168 hours @ 50c with on/off power cycles for increased reliability. the ad2060/ad2061 are supplied in rugged molded plastic cases that meet ul94v-0 and din/nema standard dimensions. digit address } ioptionali figure 1. ad2060&ad2061 functional block diagram information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use; nor for any infringements of patents or other rights of third parties which may result from its use. no license is granted by implica- tion or otherwise under any patent or patent rights of analog devices. route 1 industrial park; p.o. box 280; norwood, mass. 02062 tel: 617/329-4700 twx: 710/394-6577 west coast mid-west texas 7141641-9391 3121653-5000 214/231-5094 - - --- obsolete
spec i fi cali ons (typical@ + 25"& and rated supply voltages unless otbenvise specified) rtdinputs . rtdtypes: 1000 platinum u = 0.oo385 (per din 43760) u = 0.oo390 u = 0.oo392 . configuration: 2, 3 or 4 wire . excitarion current: 0.25ma nominal . external lead resistance effect: automatically compensated for 3 & 4 wire configurations . lead resistance: 500/lead max; rtd + lead resistance must be less than 4000 . 3 wire error: 2.8'c/o of impedance imbalance . open sensor: display + eee . rtd short to ac line: internal protection provided to 180v peak (130v rids) . maximum common-mode voltage: 1400v peak (ac or de) between input and power line ground (ac version) . common-mode rejection ratio: ioodb ac power to rtd input . nonnal mode rejection: 6odb @ so/60hz thermistor inputs . thennistor type: series 400 r = 22520 . configuration: 2 wire . open sensor: display -eee accuracy . temperature resolution: autoranging (0.1' from -199.9' to + 199.9', 1',",2oo') . all ranges guaranteed monotonic . range temperature coefficient: 20ppml'c typ, 3oppmrc max . readout accuracy' @ + 25t sensor range ~ 2oo'c to + 850'c -328'fto+1562'f - 2oo'c to + 640'c - 328'fto + 1184'f -2oo'cto +640'c - 328'f to + 1184'f -30'cto + 100'c -22'fto +212'f accuracy looortdu=0.oo385 0:0.3'co: 1i2lsd 0: 0.6'f 0: 1/2lsd 0:0.3'co:1i2lsd 0:0.6'f:u/2lsd 0:0.3'co: 1i2lsd 0:0.6'fo:1i2lsd 0: o.4'c 0: 1i2lsd 0:0.8'fo: 1i2lsd looortdu = 0.oo392 looortdu=0.oo390 thermistor r = 22520 'readout accuracy: includes gain and offset errors. recommended recalibrationlntervai15-months. digital outputs . character serial ascii data: eleven transmitted characters, (each 7 bits plus strobe) drive capability: 2ttl loads, cmositfl compatible strobe: negative transition determines when character serial data is valid. cmos/ttl compatible. character rate: selectable on pi (pin 32) grounded: 25 characters/sec. (slow) open: loo characters/sec. (fast) . isolated serial output (optional) data: asynchronous ascii 20ma current loop (optically isolated to 0:600v peak) baud rate: selectable on pi (pin 32) grounded: 300 baud (slow) open: 12oo baud (fast) distance: 10,ooo ft. max . nonisolated serial output (optional) data: serial ascii drive capability: 2ttl loads, cmositfl compatible baud rate: (same as isolated serial output) . overrange: 0: eee.e . minimum time between new data update: 15oms digital inputs . req: low-level triggered: must go low at any time other than during data transmission to be recognized. req line taken low during data transmission will not be acknowledged and the ascii digital output transmission will not occur. display readings are not effected by req. . serial input (optional): edge triggered, current on to current off: must be triggered at any time other than during data transmission to be recognized. serial input triggered during data transmission will not be acknowledged and the 20ma isolatedl1tl compatible serial output transmission will not occur. display readings are not effected by serial input. analog output (optional) . voltage: imv/degree, linearized . current: 0:2ma max drive . cmv: 1400v peak (ac or dc) between analog output ground & ac power line ground . overrange: +2.048v, -o.512v . accuracy: 0: 2m v from display reading specifications subject to change without notice. analog to digital conversion . technique: offset dual slope with gain and offset error correction . rate: 2.5 conversions/second typical . input integration period: looms for so/60hz noise rejection power requirements (choice of three supply ranges) . ac: 9ov ac to 132v ac @ 25ma (47hz to 500hz) 198v ac to 264v ac @ l2.5ma (47hz to 500hz) . de: + 7.5v to + 28v dc @ 2ooma (protected against supply reversals) display . type: seven segment orange led 0.56" (14.3mm) high . polarity indication: "+" or "-" displayed . overrange indication: 0: eee . display test: at power turn-on, 3 second display of" + 188.8." tests all segments of display '55,000 hours calculated . burn in: 168 hours at + 50'c with power on/off cycles. . calibration: nbs traceable . recalibration: recommended is-month intervals . warranty: 12 months connector one 44 pin 0.1" (2.54mm) spacing card edge connector viking 3vh2211 jn5 or equivalent optional: order ac2630 o25dia p1 ascii digital dutput board 0 43@ figure 2. rear panel view ad2061 lll ad2060 l/~l/- sensor type' j (385) looo platinum rtdu = 0.oo385 (390) looo platinum rtd u = 0.oo390 } enter (392) loooplatinumrtdu ~0.oo392 (2252) thennistor r ~ 22520 power option' (i) 120vac } (2) 240v ac enter (3) +7.5vdcto +28vdc analog output option (a) contains analog output } enter (blank) does not contain analog output serial output option (s) contains serial output } enter (blank) does not contain serial output ordering guide |
