ES239 Datasheet, PDF (29/36 Pages) Cyrustek corporation – 6000 Counts DMM / Inrush

ES239
6000 Counts DMM / Inrush
3.1. RANGE
This packet indicates range state of the meter. The M_DP1 – M_DP3 corresponding DP1 – DP3 of
LCD segment (see section 5). In DCV 6.000V range, this a03 packet will set xxxx001x. If change to
60.00V the packet will be xxxx010x.
D0
D1
D2
D3
D4
D5
D6
D7
a03
X
X
X
X
M_DP1 M_DP2 M_DP3
X
3.2. Main_Digit1 –Main_Digit3
Main_Digit1 – Main_Digit3 is the readings of measurement result shown on LCD panel. Digit3 –
Digit0 consist of 4-bit BCD code. The M_SIGN is the sign bit of readings.
D0
a04 M_SIGN
a05 Digit3₃
a06 Digit1₃
D1
X
Digit3₂
Digit1₂
D2
X
Digit3₁
Digit1₁
D3
X
Digit3₀
Digit1₀
D4
X
Digit2₃
Digit0₃
D5
X
Digit2₂
Digit0₂
D6
X
Digit2₁
Digit0₁
D7
X
Digit2₀
Digit0₀
3.3. FUNCTION
The packets of a07-a09 indicate the measurement mode of the meter. The following table
summarizes the transmitted bit for each mode. Note that the encoding of this packet is different from
the encoding of FC1-FC5 switch.
For example, if the meter operates in Voltage mode, this a07 packet is 10000000. If VAHZ key is
pushed to VAHZ mode, the a08 will be 10000000 also.
D0
a07
V
a08 VAHZ
a09 ADP0
D1
A
℃
ADP1
D2
Ohm
℉
ADP2
D3
Continuity
Inrush
ADP3
D4
Diode
EFmode
X
D5
Capacitance
SCAN
X
D6
Hz
Clamp
X
D7
Duty
LED
X
3.4. STATUS
The a10-a13 packets indicate the whole status when ES239 is in normal operation. For example, if
meter is operated at ACV / MANU range, then a10 packet will set 011000xx.
The format of the four packets are shown below.
D0
D1
D2
D3
D4
D5
a10 AUTO
MANU
AC
DC
OL
UL
a11 SLB3
SLB2
SLB1 LBAT30s BW_full
X
a12 REL
ZERO
MAX
MIN
CURRENT
X
a13 Danger
OPEN
SHORT
DISCH Inrush_wait
X
D6
X
BW1K
X
X
D7
X
HOLD
X
X
V 2.2
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2015/12/15