|
Lineacorders and Servo Corders
The WR3320 Linearcorder Mark VII is a thermal writing pen oscillograph
which has been designed to meet the standards required by even the most
exacting of professionals. Our Mark VII recorders are used by
government agencies around the world, which attests to their
reliability and superior performance- a 140 HZ frequency response, 0.2%
chart drive accuracy, and uniform trace density over a wide range of
operating conditions. The WR3320 also offers versatile
mounting-horizontal, vertical, or inverted.
140 Hz Frequency Response
The WR3320 boasts a frequency response of DC to 140 Hz. Chart speeds
can be set in seven steps in both the 5 to 500 mm/s and 5 to 500 mm/min
ranges.
0.2% Highly Accurate Chart Feed
The stepper motor and sprocket chart drive eliminate chart wander and
enable an accuracy of 0.2%. Linn-synchronized chart feed by external
pulse signals is provided as a standard feature.
Thermal Recording for crisp, clear traces
Graphtec's unique recording method uses heat sensitive paper and
thermal pen to ensure crisp, clear traces and easy-to-read digital
data, without the maintenance and mess associated with ink technology.
Frequency Response
Continuous Recording Up to 200 Meters
Both roll and Z-fold paper can be used with the WR3320. 100 m lengths
stock inside the recorder, while an optional Z-fold chart supply box
with a take-up tray enables the use of 200 m lengths. Roll paper can be
rewound simply by depressing th rewind switch, and an automatic roll
chart take-up unit is available as an option.
Multiple Remote Control Functions
Remote control functions such as pen heat on/off, chart feed
start/stop, synchronization with an external pulse, output of paper
end signal, input of event marker signals, and input and output of time
marker signals enable automated, unmanned recording.
1 V DC Reference Voltage output
Rear panel reference voltage output connectors enable easy calibration
whenever plug-in units are exchanged. The reference voltage output used
for calibration is V DC.
Wide Range of Plug-in Units
Several different plug in modules have been provided to help meet
specific application needs-standard sensitivity (L type) and high
sensitivity (H type) voltage modules.
Options
These include a roll chart take up alphanumeric printing along the
chart edge, rack mounting brackets, and 1/2, 1/10, 1/20, or 1/1000
division of the standard chart speeds.
Specifications
|
AL3301
|
AH3301
|
AL3302
|
AH3302
|
No. of channels
|
2/4/6/8/12
|
1/2/3/4/6
|
Amplitude
|
40mm per channel
|
80 mm per channel
|
Chart drive
|
Stepper motor
|
Paper feed speed
|
5, 10, 25, 50, 100, 250, and 500 mm/s or mm/min, and EXT (50 mm/s max) (Accuracy: ±0.2%, ±0.5mm |
Recording paper
|
100m roll or Z-fold, blue or black trace
|
Input format
|
Floating ground with guard shield
|
Input resistance
|
1 M , constant
|
Maximum perm issible
Input voltage
|
500 V DC (including common mode voltage
|
Measurement range
(Switching accuracy)
|
5, 10, 20, 50, 100, 200,
500, 1000 mV
0.5, 1, 2, 5, 10, 20, 50,
100 V/cm
±1% (reference range:
500 m V/cm
|
1, 2, 5, 10, 20, 50, 100,
200, 500 mV
1, 2, 5, 10, 20, 50, 100,
200, 500 V/cm)
|
2.5, 5, 10, 25, 50, 100,
250, 500 mV
0.25, 500 mV0.25, 0.5, 1, 2.5, 5, 10, 25,
50 V/cm
±1% (reference range: 250mV/cm)
|
0.5, 1, 2.5, 5, 10, 25, 50,
100, 250mV
0.5, 1, 250 V/cm
± 1% (reference range:
250 mV/cm)
|
Accuracy
|
Within ±0.5% of full scale (including non linearity and deadband)
|
Sensitivity adjustment
|
Continuously variable over measurement range
|
Zero setting
|
Can be set to any desired position in full scale (AL/AH3301: 40mm, AL/AH3302:80mm)
|
Calibration voltage
|
Twice measurement range (20 mm)
|
Four times measurement range (40 mm)
|
CMRR
|
DC: 130 dB, AC: 110 dB
|
DC: 140 dB, AC: 120 dB
|
DC: 130 dB, AC: 110 dB |
DC: 140 dB, AC: 120 dB |
Input filter
|
-40 dB/-20 dB at 50 Hz
|
|
