Ametek Land 4750-PM, User Manual

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2 - 1 User Guide
Particulate Measurement System 4750-PM
Features • Emission and warning alarm levels
• Sensor checks:
• Zero and Reference checks
• Purge Air Flow self-check
• Password protection
• Calibration (internal)
• External status indicators
I/O
Outputs
1 x 4-20 mA:
• Max. load 500 Ω
• Isolated
• Max. working insulation voltage is
560 Vpeak
2 x Alarm relays :
• Voltage free
• Max. 24 V DC or AC r.m.s nominal (18–36 V
DC range), 0.5 A
• Insulation resistance 1 GΩ @500 V DC
1 x RS-485 output
Inputs
1 x digital input:
• Isolated
• Max. working insulation voltage is
560 Vpeak
• Reverse polarity protected
Power Requirements
Power Supply Voltage
100 to 240 V AC, 50/60 Hz, 1 A
Power Consumption
1.7 W / 2.2 W (@24 V)
Fuse
D
5 mm x 20 mm HRC, type T1AH250V
(approved to IEC 60127, UL recognized)
Additional Requirements
Air Purge requirements
Requires an external supply of 1,000 l/min of dry,
clean (oil-free) air.
A suitable purge blower unit is available. For
details refer to the table in Section 5.6.1
Laser
This product is equipped with a Class 3R laser.
Max. power output = 5 mW, Wavelength = 650 nm
WARNING!
Laser radiation. This product contains a Class 3R laser.
Avoid direct eye exposure at all times !
D
AMETEK Land recommends the following approved fuses: Schurter type
SMD-SPT 0001.2704 or Cooper-Bussmann S505-1-R.