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Need help?Do you have a question about the Alcatel Vacuum Technology adixen AP 2004 and is the answer not in the manual?
The Pirani Gauges AP/APN 2004 are active gauges designed for vacuum measurements of gases within a pressure range of 1000 mbar down to 5x10-4 mbar. These gauges are intended for use with an Adixen controller (ACS 2000 or ACM2000) when they are of the 0/10V type, or they can function as standalone gauges, sending a signal directly to other equipment. For RS485 type gauges, operation is exclusively with RS485 customer equipment. It is crucial to note that these gauges are not suitable for measuring flammable or combustible gases that react in air.
The intended use of the Pirani AP/APN 2004 gauges is strictly for vacuum measurement of gases within the specified pressure range. They must not be used for measuring flammable or combustible gases that react in air. When operating these gauges, it is imperative to use an appropriate power source, ensuring the DC power supply does not exceed 30V. Exceeding this voltage can lead to product damage or personnel injury. Proper grounding is mandatory to prevent electric shock in case of a fault, and there should be no difference in protective ground potential between the gauge head and the controller device/power supply.
During installation, caution is advised. Users must verify that no harmful gases or vapors are present within the lines or chambers before opening them. If necessary, the system should be cleaned and purged with a clean, dry gas to remove any harmful substances. The internal pressure of the gauge must not exceed the maximum receivable pressure, as doing so can cause damage or gas leakage, potentially leading to injury. These gauges are not designed for use with corrosive, toxic, flammable, or explosive gases, which could result in gas leakage and injury. Maintenance of the product should be limited to sub-assembly replacement; the gauge head or electronics sub-assembly should not be disassembled. Any modifications to the electrical or mechanical components are prohibited, as they could cause damage or personnel injury. All work described in the manual should only be performed by qualified personnel with suitable technical training and experience.
The end-user bears responsibility for the process gases used. The warranty does not cover failures resulting from non-observance of instructions, use inconsistent with the manufacturer's intended purpose, modifications, or use with unlisted accessories. Failures due to contamination or expendable parts (like the filament) are also not covered.
Connecting the gauge to the installation requires appropriate fitting accessories that conform to the maximum pressure specifications. The cable should be connected and supported using cable ties or other methods to prevent excessive strain on the connector due to its weight. It is critical not to exceed the maximum receivable pressure to avoid gas leakage and injury. The installation should not be opened if the internal pressure is above 1 bar, as internal components could be ejected, causing injury. The gauges should not be heated beyond 70 °C, as this can damage circuits or cause vacuum leaks.
When installing, avoid touching the inside surfaces of the gauge, especially the inlet flange, with bare hands, as fingerprints can increase outgassing and lead to erroneous pressure readings. The gauge should be installed carefully on the vacuum system. If repositioning is necessary, avoid twisting or bending the sensor by the electronic enclosure; instead, disconnect the gauge, reposition it, and reconnect. Installation away from vibrations is recommended to prevent malfunctions. While these gauges are designed to operate in any orientation, horizontal installation provides higher accuracy. They should also be installed away from drastic temperature changes, heat sources, or fans for optimal accuracy.
The gauge features a control panel with LEDs and switches for various functions. The Power LED indicates the operational status: green for power ON/normal operation, orange for adjustment in progress, and red for a fault. SP1 and SP2 LEDs indicate the status of set points (opened, closed, or adjustment in progress). Switches include VAC/ATM for atmosphere and zero adjustment, and SP SEL for set point adjustment or entering the network address for RS485 models.
The analog signal output (0-10V) is available on Pins 1(+) and 8(-). This signal can be converted to pressure using a specific formula, with defined measurement limits. For gases other than Air, O2, N2, or CO, a conversion factor from a provided table should be applied to the pressure reading, especially for pressures under 1 mbar. RS485 communication is available on Pins 1(+) and 8(-) for RS485 models, with details found in the RS485 Communication Manual.
Gauge readings can be adjusted at two points: atmospheric pressure (ATM) and the low-pressure limit (VAC). The gauge automatically determines the conditions. Before adjustment, the gauge must be mounted in the same orientation and conditions as it will be used, and allowed to stabilize for at least 10 minutes. For zero adjustment, the current pressure must be below 1 x 10-4 mbar. The ATM and VAC adjustments allow restoring stored values. The ATM stored value can be changed, but the VAC value cannot. For AP2004-RS485+SP models, adjustments can also be made via the RS485 interface.
Set points 1 and 2 are modified using a switch selector. The mantissa is set using digits 1 to 9, the exponent value (from +6 to -9) using specific values, and measurement units (mbar, torr, or Pascal) are also selected via the switch. The set point relay output has a fixed 10% hysteresis. For AP2004-RS485+SP models, set points are modified exclusively via the RS485 interface.
Before removing the gauge, it is essential to confirm whether the vacuum processing system parts are contaminated with materials detrimental to health and the environment. If contaminated, the gauge and equipment must be thoroughly purged and cleaned. Necessary precautions should be taken when handling contaminated parts. When removing the gauge, avoid touching the inside of the connecting flange with bare hands to prevent outgassing and erroneous pressure readings. The vacuum system should be vented to atmospheric pressure, power to the gauge turned off, and the electrical connector removed. After removal, a protective cap should be placed on the fitting to prevent foreign substances from entering the gauge. For storage, the gauge should be kept away from heat, moisture, and dust.
Dirt and damage can impair vacuum component function, leading to increased outgassing and negative effects on the vacuum process. The gauge must be kept clean. Only the connecting flange should be cleaned, and only denatured alcohol should be used for cleaning the outside of the gauge.
For sub-assembly replacement, a small Philips screwdriver and an Ohmmeter are required. The sensor and/or electronics can be replaced by loosening the set screw, pulling out the sensor, replacing it, carefully aligning the holes in the electronics with the sensor pins, pushing the sensor into the electronics, and securing it with the set screw. After assembly, the sensor must be adjusted.
To check the filament, the sensor should be removed from the electronics, and an ohmmeter used to check the filament resistance. If the measured value is out of range, the sensor should be replaced. The manual also includes an error catalog to assist in troubleshooting, detailing probable errors and corresponding actions based on the power LED and voltage readings.
Contaminated products (e.g., with radioactive, toxic, caustic, or microbiological hazards) can be detrimental to health and the environment. Products returned to the manufacturer must be cleaned and free of harmful substances. Shipping regulations of all involved countries and forwarding companies must be followed, and a duly completed "Safety Questionnaire" (available on the Adixen website) must be enclosed before shipping. Products not clearly declared as "free of harmful substances" will be decontaminated at the customer's expense. Products without a completed "Safety Questionnaire" will be returned to the sender at their expense.
In compliance with European Directives 2002/96/CE (WEEE) and 2002/9/CE (RoHS), Adixen products that have reached the end of their service life must be returned to the manufacturer for decontamination and reuse. This obligation applies only to complete items that have not been modified or retrofitted and have used only spare parts sold by Alcatel Vacuum Technology. The cost of transporting the product to a reprocessing center and the service cost will be invoiced to the customer. All returned equipment must include a properly filled safety questionnaire.
Contaminated parts can be detrimental to health and the environment. Before working on any parts, users must determine if they are contaminated and adhere to relevant regulations and precautions. Substances detrimental to the environment, such as mechanical and electric components or operating fluids, must be disposed of according to relevant local regulations. When disassembling the product, components should be separated based on contamination. Contaminated components (radioactive, toxic, caustic, or biological hazard) must be decontaminated according to local regulations, separated by material, and disposed of. Other components should be separated by material and recycled.
General| Supply Voltage | 24 VDC |
|---|---|
| Type | Pirani Gauge |
| Measurement Range | 1E-4 to 1000 mbar |
| Output Signal | 0-10 VDC (Logarithmic) |
| Inlet Port | DN16KF |
| Storage Temperature Range | -20 to +60 °C |
| Relative Humidity | 0 to 80 % non-condensing |
