Smart Digital Magnetometer
HMR2300
The Honeywell HMR2300 is a three-axis smart digital magnetometer to
detect the strength and direction of an incident magnetic field. The three of
Honeywell’s magneto-resistive sensors are oriented in orthogonal directions
to measure the X, Y and Z vector components of a magnetic field. These
sensor outputs are converted to 16-bit digital values using an internal delta-
sigma A/D converter. An onboard EEPROM stores the magnetometer’s
configuration for consistent operation. The data output is serial full-duplex
RS-232 or half-duplex RS-485 with 9600 or 19,200 data rates.
Applications include: Attitude Reference, Compassing & Navigation,
Traffic
and
Vehicle
Detection,
Anomaly
Detection,
Laboratory
Instrumentation and Security Systems.
A RS-232 development kit version is available that includes a windows
compatible demo program, interface cable, AC adapter, and carrying case.
Honeywell continues to maintain product excellence and performance by introducing innovative solid-state magnetic
sensor solutions. These are highly reliable, top performance products that are delivered when promised. Honeywell’s
magnetic sensor solutions provide real solutions you can count on.
FEATURES & BENEFITS
High Accuracy Over 1 gauss, <0.5% Full Scale
Range of 2 gauss, <70 gauss Resolution
Three Axis (X, Y, Z) Digital Outputs
10 to 154 Samples Per Second, Selectable
RS-232 or RS-485 Serial Data Interfaces
PCB or Aluminum Enclosure Options
6-15 volt DC Unregulated Power Supply Interface
HMR2300
SPECIFICATIONS
Characteristics
Power Supply
Supply Voltage
Supply Current
Temperature
Operating
Storage
Magnetic Field
Range
Resolution
Accuracy
Full Scale (FS), Total Field Applied
Applied Field to Change Output
RSS of All Errors @+25°C
1 gauss
2 gauss
Best Fit Straight Line @+25°C
1 gauss
2 gauss
3 Sweeps Across
3 Sweeps Across
2 gauss @+25°C
2 gauss @+25°C
-2
67
0.01
1
0.1
1
0.01
0.05
0.05
0.01
-600
114
From +6 to +15V with 1 gauss
Applied Field
PCB Only
PCB and Non-Flanged Enclosure
PCB and Flanged Enclosure
Operating,
5 to 10Hz for 2 Hours
10Hz to 2kHz for 30 Minutes
(See Timing Diagrams)
*dd Commands (dd = Device ID)
*ddP
*ddR, *ddS, *ddT
*ddC
*ddQ
*99 Commands
*99Q
*dd Commands (dd = Device ID)
*99 Commands
9600
19,200
Power Applied to End of Start-Up
Message
1.9
2
3
6
40
2+(ddx80)
2+(ddx40)
2+(ddx120)
40
ddx40
1.04
0.52
50
80
2.2
3.2
6.2
60
2+Typ
2+Typ
2+Typ
41
2+Typ
msec
150
ppm/V
0.52
2
0.5
2
0.02
0.10
0.10
0.03
+2
gauss
micro-gauss
%FS
Ambient
Ambient, Unbiased
-40
-55
+85
125
°C
°C
Pin 9 referenced to Pin 5 (Ground)
Vsupply = 15V, with S/R = On
6.5
27
15
35
Volts
mA
Conditions
Min
Typ
Max
Units
Linearity Error
%FS
%FS
%FS
%FS
%FS
ppm/°C
Hysterisis Error
Repeatability Error
Gain Error
Offset Error
Temperature
Effect
Power Supply Effect
Mechanical
Weight
Applied Field for Zero Reading
Applied Field for Zero Reading
Coefficient of Gain
28
94
98
10
2.0
grams
Vibration
mm
g
Digital I/O Timing
T
RESP
T
DELAY
T
BYTE
T
STARTUP
39
msec
msec
msec
2
www.honeywell.com
HMR2300
RS-485 COMMUNICATIONS
(Timing is Not to Scale)
GLOBAL ADDRESS (*99) DELAY
(Timing is Not to Scale)
PIN CONFIGURATION
Pin Number
1
2
3
4
5
6
7
8
9
Pin Name
NC
TD
RD
NC
GND
NC
NC
NC
V+
Description
No Connection
Transmit Data, RS-485 (B+)
Receive Data, RS-485 (A-)
No Connection
Power and Signal Ground
No User Connection (factory X offset strap +)
No User Connection (factory Y offset strap +)
No User Connection (factory Z offset strap +)
Unregulated Power Input (+6 to +15 VDC)
PCB DIMENSIONS AND PINOUT
(Connector Not Shown for Clarity)
4
www.honeywell.com
嵌入式系统
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