Model 7250LP Low Pressure Digital Pressure Calibrator
The Model 7250LP Low Pressure Digital Pressure Calibrator, part of the versatile Series 7250 family, is specifically designed to meet the demanding performance requirements of calibrating low pressure sensors, transducers, mechanical gauges, portable calibrators and their plug-in modules. To accommodate bi-directional devices, the 7250LP can be supplied to operate in both positive and negative gauge modes.
Available in three different range combinations with two ranges in a single instrument:
• 10 inH2O and 30 inH2O(25 and 75mbar)
• 20 inH2O and 60 inH2O(50 and 150mbar)
• 35inH2O and 100 inH2O(87 and 250mbar)
The 7250LP provides a precision of 0.005% of reading from 10% to 100% of the maximum range. For example, the 10/30 inH2O 7250LP provides a precision of 0.005% of reading when measuring pressure from 30 to 3in H2O (75 to 7.5mbar). Changing ranges is automatic both upscale and downscale and does not require operator intervention. Since the 7250LP utilizes a true differential sensor, the reference port can be connected to the test system eliminating unwanted pressure disturbances due to room drafts caused by HVAC systems.
- Precision: 0.005% of reading
- Control stability: 0.004% of each range
- Resolution to 0.0001 inH2O
- Time to set point: <30 seconds with no overshoot
