20
087-0020 REV
E
Series 5000 Transmitter
General
The General Purpose loop powered universal transmitter measures the
sensor output current, conditions it, and converts it to a 4 – 20 mA
current output. The Freedom™ 5000 requires a minimum of 3mA to
operate and thus this is the lowest output the transmitter can output. The
only exception is a failure which could cause it to go to 0mA.
This output is proportional to the toxic gas monitored in PPM, PPB, or
%v/v (percent by volume) for the type and range of a specific GasPlus
sensor.
Please note that ±3% of full scale is “clipped” to 4mA/zero reading.
This is done to eliminate low level “flicker”.
The sensor type and range is automatically recognized and displayed
when the instrument is powered up.
The 4 – 20 mA loop can be customer wired to any current input device
(e.g. Alarm, PLC, DCS systems etc.).
Specific
The Freedom™ 5000 unique electronic circuitry design provides a high
degree of RFI immunity.
See Figure 3 for enclosure dimensions.
A LCD is provided for the toxic gas concentration and the units of
measure; PPM, PPB, or %. Also furnished are self – diagnostic alarms
Figure 3 Interface
and/or status indication flags. These are:
Flags:
OR –
Over Range
SST – Sensor Self Test is in operation
INH –
Inhibit: Transmitter output is set at the inhibit value.
SEN – Sensor CAL factor is below 150.
Zero & Escape magnetic
switch. Use to zero
calibrate and escape from
programming mode.
Up & Down magnetic switches.
Increase or decrease values &
used to enter Inhibit & optional
SST menu.
Span & Enter
magnetic switch.
Use to span
calibrate and
accept input
values.
Diagnostic bar
Freedom 5000 Universal Analog Toxic Gas Detector
Instruction Manual
