Analog Output Terminals - Ametek 241CE II User Manual

Analog Output Terminals

Typically, AMETEK provides two (2) self-powered analog outputs which do not
require a loop-power supply and are compatible with loop impedances of up
to 1000 ohms. Additional outputs can be included if specified by the customer
(for external Water Dewpoint or Water Content). The two (2) self-powered
analog outputs are used for Hydrocarbon Dewpoint (HCDP) Temperature and
Operational Status Code.
The standard analog output signals are discrete 4–20 mADC, 1500 Vrms iso-
lated current outputs configured as 2-wire transmitters (Figure 2-3).
The output ranges and measurement units (Figure 2-5) are the default factory
settings. The output ranges can be changed (except the Operational Status
Code – fixed analog). For each output, the lower output range value (Figure
2-5) corresponds to 4.00 mA and the higher output range value corresponds to
20.00 mA.
However, when loop-powered V/Is are used, the customer must supply an
external loop-power supply (15–30 VDC) that is capable of supplying 25 mA
per loop.
Analog Input Signal
* Water Dewpoint Temperature
Hydrocarbon Dewpoint Temperature
* Water Content
Operational Status Code
* Optional – Applicable if an external water signal is supplied and the H2O DP:EXT option is enabled from the
MonitorCFg menu.
** Optional – Applicable if an external water signal is supplied and the H2O CT:EXT option is enabled from the
MonitorCFg menu.
Figure 2-5.
Analog outputs, terminals,
default ranges, and units.
2-20 | 241CE II Hydrocarbon Dewpoint Analyzer
For self-powered and/or loop-powered analog output connection
locations, see Figure 2-3.
Terminal
+ –
J101 2 J101 3
J101 4 J101 5
J101 6 J101 7
J101 8 J101 9
Default Output Range and Units
Metric Imperial
-40 °C to 40 °C -40 °F to 104 °F
-40 °C to 40 °C -40 °F to 104 °F
0 to 1000 mg/m 3 0 to 62.43 lb/MMcf
(at 15 °C and (at 60 °F and
101.325 KPA) 14.70 PSIA)
0 to 255 0 to 255
0 to 13790 KPA 0 to 2000 PSIA
PN 903-8797, Rev A