Emerson Rosemount 4600 Reference Manual page 61

Specification and Reference Data
September 2016
4–20 mA (output code A)
Zero and span adjustment
Zero and span values can be set anywhere within the
range.
Span must be greater than or equal to the minimum
span.
Output
Digital process variable superimposed on 4–20 mA
signal, available to any host that conforms to the HART
protocol.
Power supply
External power supply required. Standard transmitter
(4–20 mA) operates on 11.25 to 42.4 V dc with no load.
Load limitations
Maximum loop resistance is determined by the voltage
level of the external power supply, as described by:
Max. Loop Resistance = 43.5 (Power Supply Voltage – 11.25)
1355
1000
500
0
11.25
Voltage (V dc)
Communication requires a minimum
loop resistance of 250 ohms.
Overpressure limits
Transmitters withstand the following pressure without
damage:
Range 2: 1,500 psi (103,4 bar)
Range 4: 7,500 psi (517,1 bar)
Range 5: 15,000 psi (1034 bar)
Range 6: 24,000 psi (1655 bar)
Burst pressure limits
Range 2: 11,000 psi (758,4 bar)
Range 4: 11,000 psi (758,4 bar)
Range 5: 26,000 psi (1793 bar)
Range 6: 31,000 psi (2137 bar)
Temperature limits
Ambient
–40 to 185 °F (–40 to 85 °C)
Storage
–50 to 230 °F (–46 to 110 °C)
Process temperature limits
–40 to 200 °F (–40 to 93 °C)
Specification and Reference Data
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Operating
Region
20 30
42.4
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Turn-on time
Performance within specifications less than 2.5 seconds
after power is applied to the transmitter
Damping
Analog output response to a step input change is
user-selectable from 0.3 to 60 seconds for one time
constant. This software damping is in addition to sensor
module response time.
Failure mode alarm
HART 4-20mA (output code A)
If self-diagnostics detect a gross transmitter failure, the
analog signal will be driven offscale to alert the user.
Rosemount standard and custom alarm levels are
available.
High or low alarm signal is software-selectable.
Alarm configuration
Rosemount
High Alarm: ≥ 21.75 mA
Low Alarm: ≤ 3.75 mA
(1)
Custom Level
High Alarm: 20.2 - 23.0 mA
Low Alarm: 3.6 - 3.8 mA
A.2.3 Physical specifications
Electrical connections
1 / –14 NPT Male, 72-in. flying leads (polyvinyl chloride
2
insulated #18 AWG copper wire)
Conduit seal
Integral conduit seal meets the requirements of NEC© 2002
section 501.5 (A), 501.5 (B) and 505.16 (B)(1). No
additional conduit seal required.
Process connections
1 / -14 NPT female (available on Ranges 2 and 4 only)

2
/ –18 NPT female (not available on Range 6)
1

4
Autoclave type F-250-C (Pressure relieved

thread: / OD high pressure tube 60° cone:
1
4
available Range 5 and 6 transmitters only.
1. Low alarm must be 0.1 mA less than low saturation and high alarm
must be 0.1 mA greater than high saturation.
Industry Automation
Reference Manual
00809-0100-4022, Rev GA
/ -18 gland
9
16
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