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 ALPHA900系列分散式数据采集器
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Voltage
1 microvolt resolution |
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Current
0.3 microamp resolution |
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Temperature
0.6 degrees Celsius accuracy |
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Resistance
1 milliohm resolution |
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Event
1 millisecond resolution |
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Frequency
0.1 cycles per second resolution |
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ALPHA
900 series of data acquisition is an economic
data acquisition front end for Process monitoring,
Condition monitoring or Machine monitoring. Connection
by low cost RS485 networking, the Alpha 900 modules
supply accurate measurement data for Temperature,
Pressure and Strain along with Digital Events
and Frequency.
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TYPE
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910 |
911 |
912 |
930 |
931 |
933 |
980
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981 |
982
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No. channels
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20 |
20 |
10
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20 |
20 |
18 |
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Measurements |
Analog |
Analog |
Analog |
Digital |
Digital |
Digital |
Com |
Com |
Com |
Voltage
DC
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√
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√
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√
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Thermocouples
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√ |
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| Current
DC |
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Resistance
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√ |
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| Strain
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√ |
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| RTD
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√ |
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Communication
RS485
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√ |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
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Communication
RS232
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√ |
√ |
√ |
√ |
√ |
√ |
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√ |
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| Communication
Ethernet |
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| Counts |
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√ |
√ |
√ |
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| Digital
inputs |
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√ |
√ |
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| Digital
outputs |
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√ |
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| Timing |
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√ |
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| Period
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√ |
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| Frequency
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√ |
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| Auxiliary
Alarm I/O |
√ |
√ |
√ |
√ |
√ |
√ |
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| Power
supply |
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√ |
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| 910
Thermocouple Module
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· Thermocouple and Voltage
Measurements
· 20 Channels per Module
· Accurate Cold Junction Compensation
· Auxiliary Alarm I/O
· Programmable Measurement Types
· Alarm Levels and Scaling Functions
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Measurement modes μVDC/mVDC Thermocouple/Ambient
temperature Sensor health
Input voltage ranges +10V>-10V +23mV>-23mV
Automatic range selection is supported
Thermocouple Measurement Accuracy:
| Type |
Range |
Accuracy |
| K |
-100～500℃ |
0.6℃ |
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500～1200 ℃ |
0.8℃ |
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1200～1600 ℃ |
4.0℃ |
| J |
-50～360℃
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0.6℃ |
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360～800℃ |
0.8℃ |
| T |
-150～400℃ |
0.6℃ |
| R |
0～1600℃ |
2.0℃ |
| S |
0～1700 ℃ |
2.2℃ |
| E |
-50～290℃ |
0.7℃ |
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290～1000℃ |
1.0℃ |
| B |
200～1600℃
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4.5℃ |
| N |
-200～-100℃ |
1.3℃ |
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-100～580℃
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1.1℃ |
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580～1300℃ |
1.3℃ |
DC measurement accuracy ±0.015% of reading
+0.01% of range +6μV
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| 911
Voltage and Current Input Module
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· Voltage and current loop
Measurements
· 20 Channels per module
· Auxiliary alarm I/0
· Programmable measurement types
· Alarm levels and scaling functions
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Measurement mode μVDC／mVDC 4～20mA
Input voltage ranges
+10V > -10V
+1.5V > -1.5V
+180mV > -180mV
+23mV > -23mV
Automatic range selection
is supported
DC measurement accuracy ±0.015% of reading
+0.01% of range +6μV
Interface Rejection：
AC Common mode rejection ratio channel
group <0.1μV/V
AC Single channel common mode rejection
ratio <1μV/V
DC Channel common mode rejection ratio
<5μV/V
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| 912
RTD, Resistance and Voltage Input Module
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· Voltage and resistance measurement
· RTD 3 wire
· RTD 4 wire and full bridge strain measurements
· 10 channels per module
· Auxiliary alarm I/0
· programmable measurement types
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The 912 provides
20 channels of voltage and current measurement
at 17 bit resolution and 1uV integrity
and is fitted with general purpose disconnectable
screw terminals.
Number of channels/module
10
No. of poles/modules
4
Measurement modes
μV / mV DC
3 /4 terminal PT100
Full strai
measurement
Sensing current
<0.75mA
Resolution 17
bit 40 times per minute
13 bit
200 times per minute
Resistance measurement：
Measurement ranges
2000 / 256 / 32 Ohm
Accuracy ±0.3%+0.015%rn+3m
Ohmg
Sensing current
<0.75mA（switched）
Resolution （max）
1m Ohm
RTD Measurement：
PT100 -50～400℃±0.2℃ -150～600℃±0.4℃
Full Strain Measurement:
350 OHM Bridges
Accuracy full
bridge (repeatability) 10uE
Sensitivity 0.4uE
5mA pulsed
120 OHM Bridges
Accuracy full
bridge (repeatability) 20uE
Sensitivity 1.2uE
5mA pulsed |
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| 931
Digital Input/output Module
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· Digital status input
· Counting
· Low frequency measurement
· Relay outputs
· 10 channels input and 10 channels output
per module
· Auxiliary alarm I/0
· Fully individually inputs
· Low speed functions have programmable
filtering operation
· LED indicators for each channel
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The 931 provides 10 channels of isolated
digital input for status monitoring, counting
and frequency measurement together with
10 channels of relay outputs. Each output
is isolated and can be used to directly
drive switchgear and other medium AC or
DC loads. Addritional outputs are provided
for local alarm annunciation or supervisory
control.
Number of input channels per 931 unit
10 2 pole
Number of input channels per 931 unit
10 2 pole relay
Input isolation channel to channel tested
at 1500V volts
Input threshold for logic 1 >4.0V
Input threshold for logic 0 <1.5V
Input operational range 4.0~
24V
Input current 2mA @ 5V
Counting Function： The same as ALPHA930
Hi, low alarms 50mA @ 28VDC max.
Non-isolated
Relay 48V AC/DC 1.0A
Acknowledge input Contact closure
to 0V
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| 933
Event Recorder
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·Status, Counting, Frequency, Period and
Plant Timing Functions
·18 channels per module
·4 channels support up to 20 khz counting
and frequency
·4 Channels support period
measurement
·Timing measurement on all input channel
state changes
·1mS resolution
·Measurements synchronized with other
networked 933 modules
·local storage data
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The 933 event
recorder module is designed to accurately
record events as they are detected. The
module provides 18 fully isolated inputs
for event measurements. Frequency measurements
can be made on all inputs up to a maximum
frequency of 400 Hz and on 4 channels
the maximum frequency can be 20,000 Hz.
Cycle period and interval measurements
can be made on 4 inputs for improved resolution
on low frequency signals. Connection to
plant equipment is achieved with disconnectable
screw terminal plugs.
| Number
of channels per 933 unit
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18
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| Input
isolation |
Tested
to 1500
Volts |
| Input
threshold |
4.0V
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| Input
operational range |
4.5～24V（20KHz时4.5～5.5V）
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Input
current |
2mA
@ 5V |
| Timing
Measurement：
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| Event
measurement resolution |
1mS
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Event
registration between 933 units
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1mS， using
sync connection |
| Buffer
capacity for processing events
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250 per 18 channels |
| Counting
Measurement: |
| Frequency
Measurement: |
| Gate
time |
1 sec，10
sec |
| Maximum
input frequency |
400 cycles/sec channels
5～18
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20000
cycles/sec channels
1～4 |
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Resolution
(max.) |
0.1
cycles/sec |
| Period
Measurement: |
| Number
of channels |
4（channels 5～8）
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| Maximum
cycle period |
60 seconds |
| Measurement
resolution |
1mS
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Number
of averaged periods |
1～100（channels
1～4）
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| Duration
of multiple period |
60
sec max |
| Effective
period resolution (100 periods)
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10uS
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| ALPHA900M系列金属壳测量模块
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ALPHA900M series of data acquisitions adopt integral
molding aluminous alloy fine casting crust, and teardownable sealed connect device
box and rubber sealed. It fully considered the dampproof, antimagnetic, dustproof
and quakeproof requirement on the mechanical design. The products meet the European
industry defending standard and can directly used in the inclement industry site.
ALPHA900M series of data acquisition systems further
updated the circuitry principle and component, the inner channels' anti-jamming ability
has been improved more.
Other technical specifications are the same
with Alpha 900 series products.
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| ALPHA981
RS232-RS485适配器 |
· Internal Direction control Function
· DIN Rail Mounting
The adapter
allows interfacing of the modules to a standard
PC and to communicate and control the measurements
via RS 485. For those requiring to use a
standard serial port, the 981 Host Adapter
allows the port to operate the RS 485 network.
Standard software languages can communicate
with the input and output modules at Baud
Rates supported by this software. Operation
on the RS 485 transceiver is automatic and
transparent to the user.
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Total
line length 1.2Km
Cable
type Twisted pair
screen
Cable
impedance 100 Ohm
Number
of modules per system Up to 99
Communication
Baud Rates 9K6 19K2 38K4
76K8 (153K6)Boud
Format Asynchronous
start bit, 8 data bits,
1 stop power
Connection
type Disconnectable 2 pole screw (Cable
screen connected to power supply-ve)
Line termination
On 980 and 981 by external resistor on
last module |
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| ALPHA982
ETHERNET 控制接口 |
· TCP/IP supported
· Windows NT, Windows 95/98 supported
· ALPHA 982 DLL Driver provided
· Multiprotocol Linux interface
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| ALPHA系列驱动与环境软件
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--- ALPHA 991 Win
95/98 DLL Driving program
· ALPHA 900 parameter settings
· Network settings/data exchange
· Visual Basic, Visual C++ function transfer
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--- ALPHA 992 Windows
NT DLL Driving program · ALPHA
900 parameter settings
· Network settings/data exchange
· Visual Basic, Visual C++ function transfer
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--- ALPHA 990 Windows
Operating platform · ALPHA 900
parameter settings
· Network settings/data exchange
· 32 Bit Windows platform
· Modules data process/graphics display
· Online parameter setup supported |
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--- Intellution FIX
I/O Driving program
· ALPHA
900 Series products supported
· 32 Bit FIX 6.0 / 16 Bit FIX 5.6 supported
· Modules data exchange
· ALPHA/FIX application integrated
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--- Zhongtai Industrial
Control MCGS I/O Driving program
· ALPHA 900 series products supported
· 32 Bit MCGS 2.0 supported
· Modules data exchange
· ALPHA/MCGS application integrated |
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