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Briefintroduction ACD-201 Remote Digital Pressure Gauge increases the remote output communication module which has RS485 communication USB communication and 4-20mA signal output. This gauge can communicate with computer directly under the




Brief introduction
ACD-201 Remote Digital Pressure Gauge increases the remote output communication module, which has RS485 communication, USB communication and 4-20mA signal output. This gauge can communicate with computer directly under the cooperation of communication software, which has data acquisition, storage and statements processing functions. This gauge adopts the signal isolation technique to eliminate interference. The lithium battery inside can work 5~10 years continuously. The gauge can still work stable without external power because of the build-in battery, but the communication function close without external power. It has radial direction, axial direction and panel mounting ways to choose.



Products patents
Patent for utility models
 ①ZL2008 2 0028605.1  《digital instrument button and display device》
 ②ZL2015 2 0269374.3  《instrument power lithium battery》
 ③ZL2009 2 0062360.9  《micro power consumption and low pressure drop sensor constant current drive circuit》
 ④ZL2014 2 0475830.5  《pressure and temperature gauge outfit》
Patent for industrial design:
  ⑤ZL2014 3 0300364.2  《pressure and temperature gauge outfit》
 ⑥ZL2008 3 0019531.0  《instruments (pressure test gauge) 》

Product features
1. 11 units display: Pa  kPa  MPa  psi  bar  mbar  kgf/cm2  inH2O  mmH2O  inHg  mmHg
2. 0.25 ~ 10 seconds per time acquisition speed
3. output: RS485/ USB /4-20mA 
4. never drop communication equipment, the trunk supports 255 set of RS485 counter equipment
5. super power management technology, battery life is 5-8 years
6. signal isolation technique, anti-electromagnetic interference and FRI technique
7. magnetic induction button design, eliminate interference and not easy to damage
8. five figures display on big LCD screen
9. pressure percentage bar charts shows
10. automatic temperature compensation technology to reduce error under bad environment
11. zero stable technology, increase the stability of the instrument

Product application
1. lab digital communication pressure acquisition, can store and handle the data on computer.
2. verify pressure (differential pressure) transmitter, precision pressure gauge, general pressure gauge
3. measuring corollary software of pressure monitor and other pressure instruments,
4. accuracy grade can arrive 0.05, which can meet high precision pressure acquisition
5. can work well in corrosive, impact and versatility environment
6. meet the lab and industrial field high precision pressure acquisition requirement 
7. replace the traditional indicator pressure gauge, can use as standard digital pressure gauge

Product parameter
1. Display unit: Pa  kPa  MPa  psi  bar  mbar  kgf/cm2  inH2O  mmH2O  inHg  mmHg
2. Measuring Range: Gage Pressure: -0.1MPa~260MPa
                  Differential Pressure: 0~3.5MPa
                     Aboslute Pressure: 0~60MPa
3. Accuracy grade: 0.05  0.1  0.2  0.5
4. Communication: RS485  USB
5. Span shift: suggested less than 3:1
6. Load capacity: RL  = U-12(V) / 0.02(A)  
 U—loop voltage(V)  
RL—allowed load resistance(Ω)
7. Output: 4-20mA (two-wire technique) or 1-5V (24VDC, three-wire technique)
8. Power supply mode:  build-in one 3.6V high power lithium battery and 10-30VDC
9. Picking rate: 0.25-10s per time, standard 0.5s per time, time can be controlled
10. Stability Performance:  +0.1% FS per year
11. Battery life:

Picking rate 4 times per second 2 times per second 1 time per second 1 time per 2s
Life time 2.8 yeas 5 years 5.5 years 7 years
Picking rate 1 time per 3s 1 time per 4s 1 time per (5-10)s
Life time 9 years More than 10 yeras More than 10 yeras
12. Operating temperature: -30℃~70℃
13. Relative humidity: <90% 
14. Barometric pressure: 86-106KPa
15. Others: Calibration reference operating temperature 20℃±2℃
0.05 accuracy requires operating temperature 0-50℃
16. Medium Temperature: General temperature range (-40~120)℃
                    Wide temperature range (-60~150)℃
17. Display mode: five figures dynamic display and percentage bar chart
18. Protection Degree: IP65
19. Exdl: ExiaIICT4 Ga
20. Overload Pressure: 1.5-3 times of measuring range, depending on the measuring range
21. Software configuration: AncnView-T digital instrument test software(RS485/USB communication) displaying instrument data, automatic recording, automatic drawing pressure curve and deriving to Excel, reading, printing and storage.
22. Process Connection: Metric M20×1.5、M14×1.5、M14×1
             US/UK Standard: G1/2、G3/4、G1/8、G3/8, NPT 1/2、NPT 1/4、NPT 1/8
Install mode
Product model selection:

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