
APSL311Precision Pressure Calibrator
Product Description
APSL311The series precision pressure calibrator has measurement functions for pressure, current, voltage, resistance, and room temperature, as well as a clock display function. It can integrate dual pressure modules to calibrate pressure transmitters, pressure switches, pressure gauges, and electric contact pressure gauges.
It can have built-in HART functionality, replacing a HART communicator, to set or calibrate the range of HART transmitters, force the output current of HART transmitters to a fixed value (such as20mA、12 mA、4mA) set linear or square root functions, etc. It is more convenient to use than a HART communicator.
Specifications
- Pressure range
- -100 kPa ~ 60 MPa
- Accuracy
- Class 0.02 / 0.05
- Measurement functions
- Pressure, current (0–22 mA), voltage (0–5.5 V), resistance (0–22 Ω), temperature
- Power output
- DC24V ±1V, max 30 mA
- Pressure ports
- M20×1.5 (gauge/abs/compound); Φ4 quick socket (differential)
- Operating temperature
- -5 ~ 50 °C
- Dimensions
- Φ108 × 43 mm, total length 170 mm
- Weight
- 0.6 kg
Product Details
1. Product Overview
APSL311SeriesPrecision Pressure CalibratorIt has measurement functions for pressure, current, voltage, resistance, and room temperature, as well as a clock display function. It can integrate dual pressure modules to calibrate pressure transmitters, pressure switches, pressure gauges, and electric contact pressure gauges. It can have built-in HART functionality, replacing a HART communicator, to set or calibrate the range of HART transmitters, and force the output current of HART transmitters to a fixed value (such as20mA、12 mA、4mA) Set linear or square root function, etc. More convenient than using a HART communicator.
Very suitable for verification of electric contact pressure gauges. During the verification of indication value, simultaneously test the upper switching value and lower switching value, and memorize and display them on the LCD (as shown below).

It passes the standardRS232Can be connected to a computer for inspection, data processing, printing verification records and verification certificates.
The dual-range calibrator can be built with 2 pressure modules, doubling the pressure coverage range. During use, it can reduce the number of times to replace the pressure calibrator, reduce the probability of damaging the pressure sensor due to overpressure, and reduce the number of gauges by half when used on site, making it easy to carry and use, and cost-effective. The dual-range calibrator can achieve complete coverage of the calibration range. When calibrating pressure transmitters, there is no gap in the middle. A calibrator with the same range can cover a wider range of ranges.
2. Technical features
Maximum pressure up to60MPa;
Has measurement functions for pressure, current, voltage, resistance, and room temperature;
Built-inDC24V power supply, can power the transmitter;
Built-in HART function, replacing HART handheld communicator, Chinese display, easy to use;
Automatic temperature compensation;
Data storage: can store calibration results of 28/56 transmitters, pressure switches, and indicators;
Clock display function;
5-digit or 6-digit digital display;
Dot matrix LCD with backlight, can display Chinese;
Removable rechargeable lithium battery
3. Technical parameters
Name: Precision pressure calibrator
Calibration objects: pressure transmitters, pressure switches, pressure gauges, etc.
Pressure range: -100kPa~60MPa, Accuracy: 0.02 class or 0.05 class.
Current range: (0-22)mA, Accuracy: 0.02 class or 0.05 class, other ranges can be customized.
Voltage range: (0-5.5)V, Accuracy: 0.02 or 0.05 class, other ranges can be customized.
Resistance range: (0-22)Ω, Accuracy: class 1.
Power output: DC24V±1V, maximum output current30mA。
Dual switch function: can have dual switch function, can simultaneously detect two pressure switches, especially suitable for calibration of dual-point switches and electrical contact pressure gauges.
Pressure module: 1 meter contains 1-2 pressure modules.
HART function: can have built-in HART function, replacing HART communicator. (HART screen as shown below)

Unit: 12 units optional: MPa, Pa, psi, inHg,inH2O、mmHg、mmH2O、kPa、bar、 mbar、atm、kg/cm2
Power: built-in3.7V/3500mAH lithium rechargeable battery
Pressure port: gauge, absolute, compound:M20*1.5 pressure interface;
Differential pressure: ф4 quick-insert socket.
Electrical interface: ф4 standard banana plug,RS232。
Operating temperature: -5℃~50℃
Weight:0.6kg。
Overall dimensions: ф108×43mm, total length:170mm
4. Usage plan
Connected to the APSL type fully automatic pressure calibration bench, serving as an external pressure module;
Connected to the TMMS-2000 automatic verification system, forming a fully automatic pressure verification system;
Connected to a pressure source, forming an on-site pressure verification solution. Through the standardRS232Can be verified online, perform data processing, and print verification certificates.
5. Range configuration


Dual range

Dual range dedicated for pressure gauge verification

6. Standard configuration
1 precision pressure calibrator
1 outer packaging box
1 certificate of conformity
1 instruction manual
1 lithium battery
1 charger
1 pair of test leads
1 factory inspection report
1 verification report (optional)



