DR4300 Circular Chart Recorder
Condition
Solid State Relay Output
Open Collector Output
Modbus Communication
Digital Inputs
(Supply common with
current output)
Transmitter Power
14
SPST solid state contacts consisting of a triac NO output.
Internally socketed.
1.0 A @ 25 °C for 120 Vac or 240 Vac.
Resistive Load:
0.5 A @ 55 °C for 120 Vac or 240 Vac.
Inductive Load:
50 VA @ 120 Vac or 240 Vac.
Maximum Sink Current: 20 mA
Internally powered @ 30 Vdc
Opto-isolated from all other circuits except current output, but not from each other.
Socketed jumper assembly replaces relay.
Baud Rate: 19,200 maximum, configurable for models with display;
fixed at 9,600 for models without display
Protocol: Modbus
Length of Link: 1,219 m [4,000 ft] maximum
Link Characteristics: Two-wire, multidrop
+24 Vdc source for external dry contacts or isolated solid state contacts for either
of the two inputs.
On contact closure the recorder will respond according to how each digital input is
configured. Opening contact causes return to previous state.
24 Vdc with adjustment of ± 6 % (22.6 to 25.4)
100 mA maximum output
DR4300 Circular Chart Recorder Product Manual
Specifications
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