參數(shù)資料
型號(hào)： ES51918
廠(chǎng)商： Electronic Theatre Controls, Inc.
英文描述： 11,000 Counts Auto DMM
中文描述： 11,000計(jì)數(shù)汽車(chē)萬(wàn)用表
文件頁(yè)數(shù)： 22/32頁(yè)
文件大?。?/td> 510K
代理商： ES51918
v1.02 05/06/30
22
ES51918
11,000 Counts Auto DMM
3.8
Peak + HOLD
Peak mode takes input from Pmax or Pmin pin. The peak values are stored in external
capacitors. Polyster mylar capacitors are recommended. The precision of Peak mode
measurement can be enhanced by calibration. Calibration for Peak mode is invoked by
pressing Peak bottom for more than 2 seconds. Entering Peak mode will automatically
execute peak calibration, if peak calibration was never done before. The Calibration
process measures and stores the offset voltage of internal operation amplifiers. High
precision is achieved by substracting this offset from reading. When power off the
ES51918 or switch the measurement mode to temperature mode, the calibrated offset
value will be cleared. ES51918 will automatically execute peak calibration, if peak
mode was activated again after the calibrated offset value was cleared.
-
4
The RS232 function will be activated if the RS232 pin is pulled to and asserts at V-.
The serial data sent to
SDO
pin once every A/D conversion cycle. The data format
complies with JIS 7Bits transmission code with a baud rate of 19230. The host can use
RS232 interface to read the data. A single data packet includes a start bit (always 0), 7
data bits, an odd parity check bit, and a stop bit (always 1). The high and low voltage
levels correspond to DGND and V- respectively. SDO remains at 1 (high) when it is
Serial Data Output
CALIBRATION
Original State
(Auto/Manual)
〝
Pmax
〞
active.
Max. Peak Value
〝
Pmin
〞
active.
Min. Peak Value
〝
Pmax
〞
,
〝
HOLD
〞
active.
Max. Peak Value
〝
Pmin
〞
,
〝
HOLD
〞
active.
Min. Peak Value
1 push > 2 s
End
1 push > 1 s
1 push < 1 s
1 push < 1 s
push HOLD
push HOLD
1 push > 2 s
Already calibrated
CALIBRATION
No
Yes
1 push < 1 s
Done
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