KROHNE BM 90 EN - Manual (Page 37)

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Type BM90 / L RZV15 RZT15 RZV15T
BM90E/ LE RXV15 RXT15 RXV15T
Temperature Uncompensated Compensated Uncompensated
Compensation
Frequency (in KHz) 41.50 41.50 41.50
Beam Angle at 3dB 10 degrees 10 degrees 10 degrees
Body Material C P V C C P V C C P V C
Face Material Urethane Urethane Teflon
Process Temperature * -40 to + 90 deg C -40 to + 90 deg C -20 to +90 deg C
Protection IP68 IP68 IP68
Weight (Kg) 2.00 2.00 3.00
6. Technical Data Level-Sonic
6.1. Converter
BM90 / BM90 L BM90 E / BM90 LE
Enclosure IP65 Aluminium NORYL DIN43700. IP55 to front of panel.
IP20 behind panel.
Dimensions 206 (8.11") x 326 (12.83") x 123 (4.84") 144H X 96W X 140D (mm).
Weight 4 Kg (8.8 lb) 1.75Kg
Power Supply 110/230 V selectable, 50/60 Hz, 10 VA 110/230Vac + 10% selected automatically.
12 V or 24 VDC not selectable 6 W 50/60Hz, 12VA, 24Vdc + 25%
Nominal voltages +/- 10 % - 10%, 9W. Separate terminals.
Fuse Rating 125 mA (slow blow) AC F2 T160mA for ac supply
250 mA @ 24 V DC F1 T315mA for 24Vdc supply
500 mA @ 12 V DC F3 & F4 T80mA
Range Up to 10 m (32.8 feet) and up to 15 metres liquids and solids with L.
Accuracy +/- 0.25 % of measured distance at + 0.25% of measured distance from the
constant temperature transducer at constant temperature of 20 C.
Ambient Temp. - 20 C to + 50 C (- 4 F to + 122 F) -40 deg C to + 70 deg C.
Calibration Integral keypad with security code 5 X 4 integral keypad with security code.
Resolution 2 mm (0.08 ") or 0.1 % of range (set at Pr.3) 2mm or 0.1% of range, whichever is the
whichever is greater greater.
Analogue Output Opto isolated 4-20 mA or 4-20mA into 750 Ohms. 16 bit. Short circuit
0-20 mA into 750 ohms protected and opto-isolated on ac powered
Short circuit protected units. Not opto-isolated on 24Vdc units.
Maximum allowable degradation of signal 2%
under extremes of transient and constant con-
ducted immunity tests to EN50082.
Relay Outputs 5 multifunction SPDT relays 5 multi-function SPDT relays rated
rated 5 A/230 V a.c resistive 8A/230Vac/30Vdc resistive, with gold con
tacts.
Indication Integral 4 digit LCD, 12 mm (0.47") high Integral, 4 digit LCD, 12mm high characters.
characters 5 red LED’s to indicate relay status 5 red LED’s to indicate relay status.
Failsafe High, low, hold (Pr.23 to 29) High, Low, Hold
Damping Fully adjustable (Pr.7) Fully adjustable
Blanking Fully adjustable (Pr.5) min 0.3 m (11.82 ") Fully adjustable
Optional Temp. Reduces ambient temperature errors from
sensor 0.17 % / 1 C of measured distance to
0.01 % / 1 C (34 F)
6.2. Transducer
NOTE: *All the above transducers can be approved for use in Hazardous Areas, Zones 1 & 2 but Ambient
Temperature limited to: -20 to + 60 deg C. CENELEC: EExm II T6 CERTIFICATE NO: 93C.108.020X
CE approved - EMC tested in accordance with EN50081 & EN50082
Parts 1 & 2
Low voltage directive, EN61010