Meters 124.1S6 for Speed and Acceleration
equipped with
analog output, alarm contacts, display

Bauform D Aufschnappgehäuse

Application Characteristics

• 1 speed measuring channel with additional facility to compute

  the rotational acceleration from subsequent speed measurements.

• Programmable for conversion into analogue signal, controlling the setpoint alarms, and the display.

• Compatible with all our high level speed sensors, and other speed transmitters of corresponding type.

• Specifically preferred for use with power plant turbines in order to observe the required mode of operation, and as an additional warning of impending danger.

Measuring Principle
Using the advantageous quartz controlled pulse distance evaluation, automatically extended over a programmable minimum period of time. Thus determining response time and averaging of measurements to achieve a high stability of readings, as specifically required for the acceleration detection.

Digital 5-digit scaling precisely adjusts the meter to the data of the specific application.

Measuring accuracy ± 0.01 %  ± 1 in last significant digit.

Minimum time extension for each measuring period programmable 30 millisec up to 10 seconds.

Special parameters adapt the unit to the performance best suited to determine the acceleration: defining the reading unit, and the number of measurements to be included into the acceleration computing cycle..

Unit terms

Recommended for the speed: RPM with decimals set as applicable.

Programmable for the acceleration: RPM/min or RPM/sec, decimals as applicable.

Sensor Signal Input
Compatible with any sensor of our series A5S05... to A5S09.., including its supply. Also  the frequency path of series  A5S3.. and A5S4, or transmitters G1000. Sensors A5S1..., installed in an hazardous Ex-area, need our isolating barrier D461 between.  General  response level   on/off >7/<4 volts. Max. signal 150 v. Impedance 100 k. Frequency 0-100 kHz.

Sensor supply 12 volts/60 ma.

• Analog Output
  Isolated circuit, convertible to full scale 20 ma (max load 500 Ω) or 10 volts (max load 3 ma). Live zero programmable. Output assigned by program to either speed or acceleration. Resolution 12 bit (1: 4096). Linearity error < 0.1 % of full scale. Tracking delay = measuring or computing period.

  
  Setpoint Alarms
  2 alarms with SPDT relay contacts. Assigned (jointly) per program to either speed or acceleration. Response characteristics individually programmable: setpoint, hysteresis bandwidth and location, condition at no power and during starter period.

  Response delay approx. 5 millisec + measuring period.

  Handling max 250 v/2 amp AC resp. 100 watts DC. Overload protection externally required.

  
  Display
  5 digits (resp. 4 digits and minus sign), with bright red figures. Versions C and D have 14 mm height, version E uses 8 mm. Decimals and blank zeroes can be programmed. The display update sequence may be increased beyond the minimum period.

  During the programming phase, the display reads the step number and its corresponding parameter.

  HOLD function
  

  Data Interface (Option)
  RS232 or RS485.

  Transmitting measurements subsequent to request.

  No configuration of parameters via Interface.

Power Supply Options

18...40 volts AC/DC  (suffix U1 to model No)
85..265 volts AC/DC (suffix U2 to model No)

Power consumption approx 5 VA.

Operating Conditions

Ambient temperature  0°C ... +50 °C (30 ...95 °F)

Optionally, the snap-on-track version (D) is available with extended temperature range -25 ... + 65 °C (suffix M to model No).

Humidity max 70%, without dew.

Insulation Category I

Compatibility to Standards

EMI according to  EN 610000-6.2, EN 610000..-6.4,

Safety according to EN 61010-1

Design

Various design versions are available, with identical functional characteristics.

Panel mount version ( C ):

Front frame 96x48 mm, protection grade IP50. Plastics enclosure, depth 125 mm, mounting by brackets supplied with. Panel thickness up to 10 mm, opening 92x45 mm. Weight approx. 200 grams. Rear side terminals for wire up to 2.5 mm², protection grade IP20.

Snap-on-track version ( D ):
For DIN rail 35 mm. Plastics enclosure, protection grade IP50. Length 100 mm, width 75 mm, height 111 mm. Weight approx. 200 grams. Terminals for wire gage up to 2.5 mm², protection grade IP20.
Optionally, version (D) is available placed in a outdoor mounting enclosure grade IP65 (≈ NEMA4) with cable conduits (suffix G).

19-inch module ( E ):
For rack height 3HE (132 mm). Front width 8TE (44 mm). Weight approx. 100 grams. Rear side connector according to DIN 41612, size F, lines b + z.   Plug-in socket as extra available.