
APSL501Hydraulic Fully Automatic Pressure Calibration Station
Product Description
The APSL type 501 series fully automatic pressure calibration bench can have built-in pressure modules or external pressure modules, and can have built-in HART functionality to replace a HART communicator, set or calibrate the range of HART transmitters, force the HART transmitter output current to a fixed value (such as20mA、12mA、4mA), set linear or square root functions, can perform HART zeroing on the transmitter pressure sensor, and is more convenient to use than a HART communicator.
Specifications
- Reference standard
- Auto-verifies pressure transmitters, pressure switches & indicating gauges; built-in/external pressure module
- Pressure range
- Pneumatic version: (-100 ~ 2500) kPa (vacuum below -100 kPa; micro-pressure verifies ±500 Pa). Hydraulic version: (0 ~ 60) MPa. Any user-defined range within
- Accuracy
- Pressure Class 0.02 / 0.05; current Class 0.02 / 0.05; 5-digit resolution; control ±5 digits
- Medium
- Pneumatic version: air (no external gas source or venting; thick piping with gas-liquid separator). Hydraulic version: transformer oil or pure water (no external high-pressure source needed)
- Pressure units
- kPa (pneumatic) / MPa (hydraulic)
- Measure / output signals
- 1-2 current inputs (0-22) mA; dry-contact switch input with contact-resistance detection
- Control performance
- Points 0/25/50/75/100% with auto-return (configurable via PC); dwell 10-240 s; 9-point transmitter run ~5 min; switch ~2 min
- Communication
- Built-in HART (replaces HART communicator): set/calibrate range, force current (20/12/4 mA), linear/square-root, HART zeroing
- Protection
- Over-pressure, over-current & sensor-fault protection
- Process connection
- M20×1.5 female quick connector; φ4 standard banana jacks; φ6 drain port
- Power output
- DC 24 V/30 mA loop supply; will not damage a standard meter if mis-connected
- Operating temperature
- -5 °C ~ 50 °C; power 220 V/50 Hz
- Dimensions
- 300 (H) × 530 (W) × 300 (D) mm
- Weight
- 19 kg
Product Details
1. Product Overview
The APSL type 501 series fully automatic pressure calibration bench can have built-in pressure modules or external pressure modules, and can have built-in HART functionality, replacing a HART communicator, to set or calibrate the range of HART transmitters, force the HART transmitter output current to a fixed value (e.g.,20mA、12mA、4mA), set linear or square root functions, can perform HART zeroing on the transmitter pressure sensor, and is more convenient to use than a HART communicator.
2. Configurable External Pressure Modules
APSL Type 311 Series Precision Pressure Calibrator;
APSL Type 312 Series Precision Digital Pressure Gauge;
APSL Type 315 Series High-Accuracy Intelligent Pressure Module;
Beta Pressure Module and Calibrator;
DHI table.

APSL type 501 series hydraulic fully automatic pressure calibration bench can be divided into: built-in pressure module hydraulic fully automatic pressure calibration bench, external pressure module hydraulic fully automatic pressure calibration bench, desktop hydraulic fully automatic pressure calibration bench.
3. Performance indicators
Working medium: use transformer oil or pure water, no need to connect external high-pressure gas source during calibration, no need to exhaust air.
Built-in pressure module range: (0~60)MPa 。
Custom calibration range: (0~60)MPaany value in between.
Measurement unit: MPa.
Pressure display resolution: 5 digits.
Pressure accuracy: 0.02 class or 0.05 class. Current accuracy: 0.02 class or 0.05 class.
Pressure control precision: ±5 counts.
Standard calibration points: range of0%、25%、50%、75%、100%, automatic return. Can be arbitrarily set with computer connection.
Custom calibration points: arbitrary.
Automatic pressure stabilization time at calibration points: adjustable between (10-240) seconds.
Total time for automatic calibration of transmitter (9-point stabilization): about 5 minutes.
Pressure switch calibration time: about 2 minutes.
With HART communicator function. (See HART screen below)

Safety protection: overvoltage, overcurrent, sensor fault and other protections.
Current input: (1-2) channels,(0~22)mA。
Switch input: dry contact, can detect contact resistance.
Loop power supply:DC24V/30mA, if mistakenly connected to a standard meter, it will not damage the standard meter.
Pressure interface:M20*1.5 internal thread quick connector.
Current/voltage interface: Φ4 standard banana plug.
Drain outlet: inner diameter: Φ6mm。
Power supply:220V/50Hz。
Operating temperature: -5℃~50℃
Weight: 19kg。
Dimensions: 300 (H) * 530 (W) * 300 (D) mm.
Dynamic calibration software: optional.
External standard meter: optional.
4. Built-in pressure module range
APSL-70CType | APSL-60CType | APSL-40CType | APSL-35CType | APSL-60GType | APSL-40GType |
70MPa | 60MPa | 40MPa | 35MPa | 60MPa | 40MPa |
35MPa | 30MPa | 20MPa | 16MPa | 15MPa | 10MPa |
16MPa | 15MPa | 10MPa | 8MPa | ||
8MPa | 7MPa | 5MPa | 4MPa | ||
4MPa(Outer) | 4MPa(Outer) | ||||
Suitable for calibrating transmitters | Suitable for calibrating ordinary pressure gauges | ||||



