8 Specifications
8.1 Technical specifications
Input type: Link selectable ± 2mA, ±20mA, 4 to 20mA or
DC Volts ±100mV, ±1V, ±10V, ±100V or
Slidewire, 3 wire 0-1kΩ to 0-1MΩ value slidewires
Impedance: Typically 150Ω for mA input (82Ω plus polyfuse resistance)
1MΩ on DC voltage input
ADC Resolution: 1 in 20,000
Accuracy: 0.1% of input range selected when calibrated
(0.3% on ± 100mV and ± 2mA ranges)
Sample Rate: 4 samples per second
Display update: 4 times per second
Conversion Method: Dual Slope ADC
Microprocessor: HC68HC11F CMOS
Ambient temperature: LED -10 to 60
o
C, LCD -10 to 50
o
C
Humidity: 5 to 95% non condensing
Display: LED Models: 4 digit 20mm,
5 digit 14.2mm + status LEDs + 4 way keypad.
6 digit 14.2mm + 4 way keypad
LED Bar Graph 20 segment bar + 5 digit 7.6mm + relay status LEDs
LED Circular Bar Graph 16 segment + 5 digit 7.6mm + relay status LEDs
LCD Models: 4 digit 12.7mm, 6 digit 12.7mm
Power Supply: AC 240V, 110V or 24V 50/60Hz
or DC isolated wide range 12 to 48V.
Special supply types 32VAC, 48VAC 50/60Hz or
DC isolated 50 to 110V also available.
Note: supply type is factory configured.
Power Consumption: AC supply 4 VA max, DC supply typically 160mA at 12VDC and
80mA at 24VDC for PM4 with no optional outputs, actual current drawn
depends on display type and options fitted
Output (standard): 1 x relay, Form A, rated 5A resistive
18VDC (approx.) non isolated regulated transmitter supply (25mA max.)
Relay Action: Programmable N.O. or N.C or PI control (frequency or pulse width)
8.2 Optional outputs
Extra Relays: Same specs. as Relay 1 (up to 6 extra relays). The standard relay and
first optional relay can be programmed for PI control operation if required.
Available as one, three or six extra relays.
Analog Retransmission: 12 bit isolated 4 to 20mA, 0 to 1V or 0 to 10V link selectable
(single or dual analog output versions available).
(4-20mA will drive into resistive loads of up to 800Ω)
Digital Retransmission: Isolated BCD/Binary
Serial Communications: Isolated RS232 or RS485 (ASCII or Modbus RTU)
DC Voltage Output: Isolated ±12V(24V) standard, ±5V(10V) link selectable (rated at 25mA).
PM4IVMAN-2.4-0 55 of 56
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