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Specifications and Reference Data
Specifications and Reference Data
July 2016
Reference Manual
00809-0100-4728, Rev MB
Custom configuration
Custom configurations are to be specified when ordering. This configuration must be the same for all sensors. The following table lists the
necessary requirements to specify a custom configuration.
A.6 Specifications and Reference Data
for Rosemount 644 HART Head
Mount
(Manufacturing date of May 2012 or before)
A.6.1 Functional specifications
Inputs
User-selectable; sensor terminals rated to 42.4 Vdc. See
for sensor options.
Output
Single 2-wire device with either 4-20 mA/HART, linear with
temperature or input. Device supports both protocol revisions
HART 5 and 7.
Isolation
Input/output isolation tested to 600 Vrms.
Local display
The optional five-digit integral LCD Display includes a floating or
fixed decimal point. It can also display engineering units (°F, °C, °R,
K, W, and mV), mA, and percent of span. The display can be
configured to alternate between selected display options. Display
settings are preconfigured at the factory according to the standard
transmitter configuration. They can be reconfigured in the field
using a compliant Field Communicator.
Humidity limits
0–95% relative humidity
Update time
0.5 seconds
Accuracy (default configuration) PT 100
HART (0-100 °C): ±0.18 °C
Option code
Requirements/specification
HART
C1
: Factory Configuration Data (CDS
required)
Also needs option code:
...DC
...DC
...M4 or M5
Date
: day/month/year
Descriptor
: 8 alphanumeric characters
Message
: 32 alphanumeric character
Custom Alarm and saturation levels
: Choose custom High and Low Alarm and Saturation
levels
Diagnostics Configuration:
Hot Backup
– Mode, PV
Sensor Drift Alert
- Mode, Limit, Units
Display Configuration:
Choose up to 10 variables to display on the LCD display
C2
:Transmitter – Sensor Matching
The transmitters are designed to accept Callendar-Van Dusen constants from a calibrated
RTD. Using these constants, the transmitter generates a custom curve to match the
sensor-specific curve. Specify a Series 65, 65, or 78 RTD sensor on the order with a special
characterization curve (V or X8Q4 option). These constants will be programmed into the
transmitter with this option.
Q4
: Three-Point Calibration with
Certificate
Calibration certificate. Three-Point calibration at 0, 50 and 100% with certificate.
C4
: Five-Point Calibration
Will include five-point calibration at 0, 25, 50, 75, and 100% analog and digital output
points. Use with Calibration Certificate Q4
HR7
: HART Revision configuration
Your Rosemount 644 device is HART revision selectable. Order the HR7 code to configure
your device to operate in HART Revision 7 mode. Your device is also configurable in the
field. Refer to the Rosemount 644 Quick Start Guide or Reference Manual for more
instructions.
Содержание Rosemount 644 HART
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Страница 16: ...6 Reference Manual 00809 0100 4728 Rev MB Introduction July 2016 Introduction ...
Страница 80: ...70 Reference Manual 00809 0100 4728 Rev MB Operation and Maintenance July 2016 Operation and Maintenance ...
Страница 86: ...76 Reference Manual 00809 0100 4728 Rev MB Troubleshooting July 2016 Troubleshooting ...
Страница 120: ...Product Certifications July 2016 Reference Manual 00809 0100 4728 Rev MB 110 Product Certifications Sheet 2 of 2 ...
Страница 122: ...Product Certifications July 2016 Reference Manual 00809 0100 4728 Rev MB 112 Product Certifications ...
Страница 138: ...128 Reference Manual 00809 0100 4728 Rev MB Index July 2016 Index ...
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