specifications are subject to change without notice (28.10.99) 1 3 3/4-dgt multi-range p-based controller for ac/dc current measurements ranges from 2 ma to 5 a all software functions selectable by key-pad peak/valley function password protection of programming parameters 2 independent alarm setpoints alarm for over-range, up-alarm, down-alarm, down alarm with disabling at power-on, up/down-alarm with latch degree of protection: ip 65 optional analogue output (20 ma/10 vdc) optional serial rs 485 output modbus, jbus protocol product description model measurement power supply setpoints signal output engineering unit option ordering key mdi40a0bd2a xx ix 3 3/4-dgt multi-range p-ba- sed controller for ac/dc cur- rent measurements. scaling and setpoints are fully pro- grammable by user-friendly key-pad. the mdi 40 a in- cludes peak/valley function and password protection. the housing is easy to mount and ensures a protection de- gree of ip 65. panel meters and controllers controller for ac/dc current measurements type mdi 40 a type selection measurements a0b: standard (40 - 400 hz) 2 ma 20 ma 2 a 5 a a4x: std, input: 200 ma a0t: trms (40 - 1000 hz) 2 ma 20 ma 2 a 5 a power supply a: 24 vac, -15% +10%, 50/60 hz 1) b: 48 vac, -15% +10%, 50/60 hz 1) c: 115 vac, -15% +10%, 50/60 hz 1) d: 230 vac, -15% +10%, 50/60 hz (standard) e: 120 vac, -15% +10%, 50/60 hz 1) f: 240 vac, -15% +10%, 50/60 hz 1) 3: 9 to 32 vdc with galvanic insulation 1) 6: 40 to 150 vdc with galvanic insulation 1) signal output x: none a: analogue: 0 to 20 ma/ 0 to 10 v r: serial: rs 485 unidirectional s: serial: rs 485 bidirectional w: analogue (a) + serial (r) y: analogue (a) + serial (s) options ix: degree of protection ip 65 (standard) 01: interactive setpoints + ip 65 1) xt: tropicalization + ip 65 1) rated input 2 ma, 20 ma, 200 ma, 2 a, 5 a, 40-400 hz accuracy dc dc current measurements, (@ 25c 5c) 0.1 % f.s., 1 dgt ac standard ac current measurements, (@ 25c 5c, 5-100% f.s.) 0.1 % f.s., 2 dgt ac trms ac current measurements, (@ 25c 5c, 5-100% f.s.) 0.2 % f.s., 2 dgt temperature drift dc 150 ppm/c ac standard and trms 200 ppm/c sampling rate 4 times/second, dual slope 16 bits a/d converter display 7-segment led, h 14.2 mm max. and min. indication dc max. 3999, min. -1999 ac standard and trms max. 3999, min. 0 ac measurements standard measurement of the avera- ge value resulting from the sine half-wave rectification of the input voltage by rms calibration input specifications 1) on request ( datasheet : )
2 specifications are subject to change without notice (28.10.99) mdi 40 a alarms number of setpoints 2 independent (standard) alarm type over-range, up alarm, down alarm, down alarm with dis- abling at power-on, up alarm with latch, down alarm with latch special function interaction of the two set- points (on request) setpoint adjustment 0 to 100% of the displayed range limits of setpoint adjustment pr ogrammable minimum and maximum values hysteresis 0 to 100% of the displayed range on-time delay 0 to 255 s off-time delay 0 to 255 s relay status normally energized/de-ener- gized output type contact 2 x spdt rating 5a, 250 vac/vdc, 40 w / 1200 va, 130.000 cycles min. response time 400 ms, filter excluded setpoint on-time delay: 0 insulation 2000 v rms between output and measuring inputs, excita- tion output excitation output voltage 15 vdc non-stabilized/ 40 ma max insulation 100 v rms output to measuring input 4000 v rms output to ac supply input 500 v rms output to dc supply input analogue output (on request) range 0 to 20 madc, 0 to 10 vdc scaling factor programmable within the whole range of the signal output; it allows the mana- gement of all values from 0 to 20 ma / from 0 to 10 v analogue output (cont.) accuracy/response time 0.3% f.s. (@ 25c)/ 500 ms temperature drift 200 ppm/c load:20 ma output 500 10 v output 3 10 k insulation by means of optocouplers, 500 v rms output to measuring input 4000 v rms output to supply input serial output (on request) type rs485; multidrop uni-directional (std), bidirectional (on request) connections 2 or 4 wires, max. distance 1200m, termination and/or line biasing directly on the instrument adresses/protocol 255, selectable by key-pad/ modbus, jbus data (uni-directional) dynamic (reading only) measurement, data hold of minimum value, data hold of maximum value, alarm status static (reading only) all programming data data (bidirectional, on request) dynamic (reading only) measurement, data hold of minimum value, data hold of maximum value, alarm status. static (reading/writing) all programming data, min./ max. data hold reset, reset of alarm set-points with latch data format 1-start bit, 8-data bit, no parity, 1 stop bit baud-rate 1200, 2400, 4800 and 9600 selectable bauds insulation by means of optocouplers, 500 v rms output to measuring inputs 4000 v rms output to supply input output specifications measurements (cont.) trms true rms coupling type : ac crest factor: 3 3 input ranges 2 ma -1.999 to 1.999 madc 0 to 1.999 maac input impedance: 50 20 ma -19.99 to 19.99 madc 0 to 19.99 maac input impedance: 50 200 ma (on request) -199.9 to 199.9 madc 0 to 199.9 maac input impedance: 1 input ranges (cont.) 2 a -1.999 to 1.999 adc 0 to 1.999 aac input impedance: 50 m 5 a -1.99 a to 5 adc 0 a to 5 aac input impedance: 50 m overload protection continuous 1.2 x rated input for 1s 2 x rated input keyboard 4 keys: s for menu selection; up and down for value programming/function selection; f for special functions input specifications (cont.)
specifications are subject to change without notice (28.10.99) 3 mdi 40 a peak and valley values automatic storage (ram only) of the min. and max. value measured from the last reset password numeric code of max. 3 di- gits; 3 protection levels of the programming data 1st level password 0, no protection 2nd level password from 1 to 127, all data are protected 3rd level password for 128 to 255, all data protected except for the alarm setpoints measurement selection ac/dc current scaling factor operating mode electrical scale compression, compression/expansion of the displayed scale (max. 2 with- out filter, > 2 with filter). scaling factor (cont.) electrical scale programmable within the whole measuring range decimal point position programmable within the displaying range displayed scale programmable within the whole displaying range diagnostics the display flashes when the limits of the displayed range are exceeded, the data are updated up to the maximum read-out over range eee indication (ac/dc) under range -ee indication (dc) filter filter operating range from 0 to 3999 filtering coefficient from 1 to 255 software functions ac voltage 230 vac -15%+10% 50/60 hz, (standard) 24 vac, 48 vac, 115 vac, 120 vac, 240 vac, -15%+10% 50/60 hz (on request) insulation 4000 v rms supply input to all the other inputs/outputs dc supply 9 to 32 vdc, galvanic insulation, max. inrush current: 1.2 a/200 ms (on request) 40 to 150 vdc, galvanic insulation, max. inrush current: 0.6 a/200 ms (on request) insulation 500 v rms supply input to all other inputs/outputs power consumption 5 va (basic instrument), 7 va max. with signal output supply specifications operating temperature 0 to +50c, 32 to 122f (r.h. < 90% non-condensing) storage temperature -10 to +60c, 14 to 140f (r.h. < 90% non-condensing) insulation reference voltage 300 v rms to ground dielectric strength 4000 v rms for 1 minute noise rejection nmrr 40 db, 40 to 60 hz. cmrr 100 db, 40 to 60 hz emc iec 60801-2, iec 60801-3, iec 60801-4 (level 3), en 50081-1, en 50082-1 safety standards en 61 010-1, iec 61010-1, vde 0411 connector screw-type, detachable housing dimensions 1/8 din, 48 x 96 x 124 mm material abs, self-extinguishing: ul 94 v-0 degree of protection ip 65 (standard) weight approx 520 g (signal output and packing included) approvals ul,csa, ce general specifications
4 specifications are subject to change without notice (28.10.99) mdi 40 a dimensions terminal board s f front panel description 1 2. display 3 3/4-digit (maximum read-out 3999). alphanumeric indication by means of 7-segment display for: - displaying of the measured value, over-range and programming indications. - indication of programming parameters. 3. led - 1 and 2 led indicators for alarm conditions 4. engineering unit screen for interchangeable unit label.the symbols in the shaded areas are those available on the set of engineering unit labels supplied with the mdi (engineering unit label to be inserted by customer). 1. key-pad set-up and programming procedures are easily controlled by the 4 pushbuttons. s - selection key to select programming function (instrument configuration) or measurement and alarm detection. and - up and down keys for increasing or decreasing program- ming values. - selecting programming functions and instrument configuration together with the s key. f - special function key for interaction between the two set- points and for alarm latch reset. w = 08 m = 16 % = 24 mm hg = 32 cm = 40 mv = 01 kw = 09 hz = 17 mbar = 25 l/min = 33 m = 41 v = 02 mw = 10 khz = 18 bar = 26 l/h = 34 kg = 42 kv = 03 var = 11 rpm = 19 psi = 27 kg/min = 35 ppm = 43 a = 04 kvar = 12 m/s = 20 ata = 28 ton/h = 36 ka = 44 ma = 05 mvar = 13 m/min = 21 ate = 29 m 3 /min = 37 cos f = 45 a = 06 = 14 c = 22 kg/cm 2 = 30 m 3 /h = 38 m 3 = 46 mw = 07 k = 15 f = 23 mm h 2 o = 31 mm = 39 s = 47 2 4 3 off on tx in 12v 22 23 24 25 26 27 21 out 20ma analog output serial output rs485-rs422 ter. pol. rx 17 18 19 20 out v in 24v + + _ _ + _ + _ + _ + _ _ _ _ _ 1 15 14 12 11 10 9 8 7 6 5 4 3 2 16 relay 2 relay 1 out n.c n.c n.o. n.o. com. com. 15v/40ma 5a 2a 20ma 2ma ov 40/150v- ov 8/32v- ov~ 230v~ ov~ 115v~ ov~ 48v~ ov~ 24v~ 13 ! + _ + _
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