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The Additel ADT273EX is an Intrinsically safe compound pressure calibrator that has an optional HART communications capability. The Compound version has a range of ±2 PSIG to -15 to 10,000 PSIG. The ADT273EX has passed the most stringent ATEX, IECEX, CSA, and UKCA intrinsic safety certifications from authoritative organizations. Also its explosion-proof level is Ex ia IIC T4 Ga.
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Functional Features |
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Scaling |
User can convert measured current, voltage and frequency values into pressure, temperature and flow values. Three conversion functions available: linearity, square and square root |
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Filtering |
Average sliding filter (sampling number: 1 ~ 50) First-order linear filter (First-order coefficient: 0.01 ~ 1) |
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Switch |
The measurement value will be automatically displayed at the moment the switch change of state. The latest 8 state changes will be stored in the memory. |
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Pressure Tare |
Tare value is set through the user interface |
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Pressure stability indicator |
Stability time and criteria is selectable |
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General Specifications |
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Input Channels |
Top: 1 electrical signal measurement channel, φ4mm banana jacks |
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Right side: 2 channels for external digital pressure modules, 5-core dedicated aviation plug |
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Bottom: embedded digital pressure module (model ADT158Ex), field switchable. |
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Internal: 1 embedded atmospheric pressure sensor |
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Barometric Accuracy |
±55 Pa |
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Measurement Rate |
mV, V, mA & frequency: 3 times/sec |
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Pressure module: 1~10 times/sec selectable (3 as default) |
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Barometer: 1 time/sec |
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Power |
4000mAh, 14.4Wh explosion-proof intelligent lithium battery, charging time = 6~8 hours, battery can be charged independently Typical working time 100 hours (measurement mode) |
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Environmental |
Guaranteed temperature range of technical specifications: (-10 ~ 50)°C |
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Operating temperature: (-20 ~ 50)°C |
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Storage temperature: (-30 ~ 70)°C |
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Humidity: 0% to 95% RH, non-condensing. |
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Altitude: 3000 meters |
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Warm-up Time |
10 min to fully meet technical specifications |
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Port Protection Voltage |
30V max |
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Explosion-proof Grade |
ATEX & IECEX: Ex ia IIC T4 Ga (Ta = -10°C ~ 50°C) |
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CSA: Class I, Division 1, Group A,B,C and D, T4 Ex ia IIC T4 Ga Class I, Zone 0, AEx ia IIC T4 Ga |
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UKCA-EX |
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CE Certification |
TUV IEC61326, IEC61010 |
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Rohs Compliance |
Rohs II Directive 2011/65/EU, EN50581:2012 |
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Protection Level |
IP67, 1 meter drop test |
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Communication |
Isolate USB-Type C (slave), Bluetooth |
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Display |
4.4-inch color display capacitive screen, transflective, with LED backlight |
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Size |
6.97" x 4.13" x 2.04" (177 mm x 105 mm x 52 mm) which doesn't include bottom ADT158Ex. |
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Weight |
1.98 lb (0.9 kg) |
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Electrical Specifications |
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Specification |
Range |
Accuracy |
Resolution |
Note |
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Voltage Measurement |
±300mV |
0.015%RDG + 0.005%FS |
1uV |
Impedance: >100MΩ |
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±30V |
0.015%RDG + 0.005%FS |
0.1mV |
Impedance: >1MΩ |
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Current Measurement |
±30mA |
0.015%RDG + 0.005%FS |
0.1uA |
Impedance: < 40Ω |
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Frequency Measurement |
0.01~50000Hz (auto range) |
0.005% RDG + 2 last digit |
6-digit auto-resolution |
Min threshold voltage: 2.5V |
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Units: Hz, kHz, MHz, CPM, CPH, s, ms, us |
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Switch On-Off Measurement |
Inspection voltage: (3 ~ 30)V |
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Response speed: < 10ms, supports wet and dry switch |
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Pulse Count |
0 ~ 9999999, optional rising edge and falling edge |
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Min threshold voltage: 2.5V |
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Loop Power |
20V ± 10%, max output impedance: 320Ω, max load current: 25mA |
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Pressure Technichal Specifications |
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Pressure resolution |
4, 5, or 6 digit resolution (user selectable) |
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Temperature Compensation |
-10°C~50 °C |
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Pressure Module Type |
Built-in digital pressure module: ADT158Ex, for more detailed information, please see ADT 158Ex datasheet. External digital pressure module: ADT161Ex,for more detailed information, please see ADT 161Ex datasheet. |
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Specifications |
Refer to the technical specification of the ADT158Ex and ADT161Ex |
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High Static Pressure and Differential Pressure Synthesis Index |
Two modules must be with the same range; Typical Differential pressure accuracy of 0.002%FS or 0.02%RD, whichever is greater when using two 0.02%FS external modules. Typical Differential pressure accuracy of 0.002%FS or 0.05%RD, whichever is greater when using two 0.05%FS external modules. |
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Compound Pressure |
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P/N |
Pressure Range |
Media |
Accuracy |
Pressure Rating |
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psi |
bar |
Burst |
Over Pressure |
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CP2 |
±2 |
±0.16 |
G |
0.05% FS |
3x |
1.2x |
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CP5 |
±5 |
±0.35 |
G |
0.02% FS |
3x |
1.2x |
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CP10 |
±10 |
±0.7 |
G |
0.02% FS |
3x |
1.2x |
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CP15 |
±15 |
±1.0 |
G |
0.02% FS |
3x |
1.2x |
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CP30 |
-15 to 30 |
-1 to 2.0 |
G |
0.02% FS |
3x |
1.2x |
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CP50 |
-15 to 50 |
-1 to 3.5 |
G |
0.02% FS |
3x |
1.2x |
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CP100 |
-15 to 100 |
-1 to 7.0 |
G,L |
0.02% FS |
3x |
1.2x |
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CP300 |
-15 to 300 |
-1 to 20 |
G,L |
0.02% FS |
3x |
1.2x |
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CP500 |
-15 to 500 |
-1 to 35 |
G,L |
0.02% FS |
3x |
1.2x |
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CP600 |
-15 to 600 |
-1 to 40 |
G,L |
0.02% FS |
3x |
1.2x |
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CP1K |
-15 to 1,000 |
-1 to 70 |
G,L |
0.02% FS |
3x |
1.2x |
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CP2K |
-15 to 2,000 |
-1 to 140 |
G,L |
0.02% FS |
3x |
1.2x |
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CP3K |
-15 to 3,000 |
-1 to 200 |
G,L |
0.02% FS |
3x |
1.2x |
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CP5K |
-15 to 5,000 |
-1 to 350 |
G,L |
0.02% FS |
3x |
1.2x |
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CP10K |
-15 to 10,000 |
-1 to 700 |
G,L |
0.02% FS |
2x |
1.2x |
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