Measuring relays for monitoring physical values DOLD

• According to IEC/EN 60 255, DIN VDE 0435-303
• Detection of standstill of rotating machine parts and cyclic pulses
• Detection of blocking or missing pulses
• Monitoring time adjustable between 0.1 ... 20 s (others on request)
• Energized or de-energized on trip
• For input frequency up to 5 kHz( 300000 ipm)
• Universal input, suitable for a variety of sensors
(PNP,NPN,2-wire, contact, voltage)
• Input also suitable for SKF sensor bearings
• As option for Namur sensors
• On request with manual reset
• IK 9144 and SK 9144: compact version for DC 24V auxiliary supply
• IL 9144 and SL 9144: for auxiliary supply up to AC 400V with
galvanic separation to sensor input
• LED indicators for auxiliary supply, sensor pulses and contact
position
• 1 changeover contact (2 changeover on request)
• Devices available in 2 enclosure versions:
IK/IL 9144: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK/SL 9144: depth 98 mm, with terminals at the top for
cabinets with mounting plate and cable duct
• IK 9144, SK 9144: width 17.5 mm
• IL 9144, SL 9144: width 35 mm

• According to IEC/EN 60 255-1, VDE 0435 part 303
• Detection of high or low-rpm / stand still (adjustable function)
• Large setting range 1 ... 120.000 IPM or
0.15 ... 20.000 Hz (10 ranges each)
• As option with input for NAMUR-sensors with sensor and
wire protection against interruption and short circuit
• Adjustable hysteresis 0.5 ... 50 %
• Adjustable start up time delay 0 ... 50 s, control with external contact
• Adjustable monitoring time for missing input signal at function
overfrequency; additional using as standstill level
• Programmable via termminals:
- Alarm delay of 0 ... 100 s
- with manual reset or auto reset
• LED-indication for auxiliary voltage, measuring input and output relay;
additional LED for indication of wire- / sensor failure at NAMUR-input
• Auxiliary voltages AC 230 V and DC 24 V in one unit
• 2 changeover contacts, closed circuit operation
• Open circuit operation on request
• As option with analogue output, proportionally to speed
• Device available with 2 response values and seperately controlled
output relays for under- and overfrequency see MK 9055N/5_ _
• MH 9055 with wide input range for auxiliary voltage
(AC/DC 24 ... 60 V or AC/DC 110 ... 230 V)
• 2 possible compact designs
MK 9055N: Width 22,5 mm
MH 9055: Width 45 mm