Calex PMB201 Operator'S Manual Download Page 5

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WIRING

Check the distance between the sensor and the Modbus Master. If necessary, the sensor can

be ordered with a longer cable attached.

POWER SUPPLY

Be sure to use a 24 V DC power supply. The maximum current draw is 50 mA per sensor.

MECHANICAL INSTALLATION

All sensors come with a 1 m cable and a mounting nut. The sensor can be mounted on

brackets or cut outs of your own design, or you can use the fixed and adjustable mounting

bracket accessories which are shown below.
Note: The sensor must be grounded at only one point, either the cable shield or the sensor

housing, but not both.

AIR PURGE COLLAR

The air purge collar below is used to keep dust, fumes, moisture, and other contaminants

away from the lens. It must be screwed in fully. Air flows into the 1/8” BSP fitting and out of the

front aperture. Air flow should be no more than 5 to 15 litres/min.
Clean or ‘instrument’ air is recommended.

Summary of Contents for PMB201

Page 1: ...PyroMiniBus Series Operator s Guide...

Page 2: ...odel Number 2 1 PMB21 20 1 PMB201 Close Focus 3 5 mm at distance 50 mm PMBXCF General Interface RS485 Modbus RTU Accuracy 1 of reading or 1 C whichever is greater Repeatability 0 5 of reading or 0 5 C...

Page 3: ...e the nominal target spot diameter at any given distance from the sensing head and assume 90 energy Sensors may be used at longer distances than these diagrams show Thread M16 x 1 mm Standard length 1...

Page 4: ...aller than the target We normally recommend that the target should be at least twice the size of the measured spot for maximum accuracy AMBIENT TEMPERATURE The sensor is designed to operate in ambient...

Page 5: ...ckets or cut outs of your own design or you can use the fixed and adjustable mounting bracket accessories which are shown below Note The sensor must be grounded at only one point either the cable shie...

Page 6: ...nterface please see the PM180 section of this Operator s Guide IMPORTANT Do not connect or disconnect Modbus devices with power on Always disconnect power before modifying electrical connections SENSO...

Page 7: ...seconds R W 0x0B 1 Average Temperature R 0x0C 1 Minimum Temperature R 0x0D 1 Maximum Temperature R 0x0E 1 Filtered Temperature R 0x0F 1 Unfiltered Temperature R 0x10 1 Sensor Temperature R 0x11 1 Sta...

Page 8: ...ng Averaging and Hold Processing Unfiltered Temperature The raw measured temperature without Averaging or Hold Processing Sensor Temperature The temperature inside the sensor body this is usually a fe...

Page 9: ...etween moving objects e g on a conveyor or by an obstruction LENS CLEANING Keep the lens clean at all times Any foreign matter on the lens would affect measurement accuracy Blow off loose particles if...

Page 10: ...loves on With an optional MicroSD Card inserted the PM180 functions as a fully configurable data logger SPECIFICATIONS Touch Screen Display 2 83 72 mm resistive TFT 320 x 240 pixels backlit Supply Vol...

Page 11: ...termined time via the Settings menu If the PM180 is connected via the slave interface to another Modbus network logging may also be started remotely by the Modbus Master on that network DIMENSIONS PMB...

Page 12: ...12 ELECTRICAL CONNECTION...

Page 13: ...PM180 is locked and the Settings menu is greyed out To access the Settings menu unlock the PM180 The default password is 1234 After entering the password tap the Unlock icon to unlock the unit The pa...

Page 14: ...0 to 59 R W 0x0012 1 Data acquisition start time Day 1 to 31 R W 0x0013 1 Data acquisition start time Month 1 to 12 R W 0x0014 1 Data acquisition start time Year 2012 to 2105 R W 0x0015 1 Alarm log se...

Page 15: ...20 5 0x1500 5376 Example To read the Filtered Temperature on a PyroMiniBus sensor in position 4 on the PM180 as shown above read from register 0x0E 0x1400 0x140E decimal 5134 For information on the Mo...

Page 16: ...Calex Electronics Limited PO Box 2 Leighton Buzzard Bedfordshire England LU7 4AZ Tel 44 0 1525 373178 Fax 44 0 1525 851319 Email mail calex co uk Online www calex co uk Issue E Jul 2018...