Digital process pressure gauge and calibration DR72

The DR72 series of digital pressure gauges offers a double alternative of use: process pressure/vacuum gauge on the one hand, reference standard instrument in calibration tasks on the other hand. The equipment incorporates a pressure sensor with overlapping ranges from vacuum to 350 bar. The material in contact is AISI 316 stainless steel for pressures above 1 bar and therefore accepts liquids or gases compatible with this material. For lower pressures it is only suitable for inert gases.

The DR72 series is provided with a front faceplate that incorporates a tactile keypad for on/off/zero/setup status. The gauge offers a wide range of functionalities such as auto-off time, maximum and minimum readings, change of engineering units, tare, alarms, password and additional functions configurable from the keypad itself.

The pressure gauge is encapsulated in a 110 mm diameter 316 stainless steel case with housing for three AA-size batteries that illuminate a large 350-segment LED display for numeric and alphanumeric indication, backlit with LEDs as desired and highly visible.

It has an external 24 Vdc power input for easy installation in the process. In addition, the DR72 can be supplied with a 4-20 mA analog output or configured as a slave in a sensor network connected via MODBUS RTU RS-485 protocol, which gives the DR72 perfect scalability in distributed control systems (DCS).

Available pressure types:

– Relative pressure
– Absolute pressure
– Vacuum
– Combined ranges
– Differential pressure

Gometrics FT DR72

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CHARACTERISTICS

Fluid in contact compatible with stainless steel 316 (for ranges>1 bar)
Analog output, communications, alarm
Relative, absolute and vacuum pressure
Uncertainty from 0.10% FS to 0.05% FS

ADVANTAGES

Process manometer/vacuum gauge and instrument in calibration tasks
Relative, absolute and vacuum pressure
Combined ranges (vacuum-pressure)
Innovative, accurate, detail-designed and versatile product
Wide range of functionalities
Data logger function

APPLICATIONS

Pressure and vacuum measurement in industrial processes
Field calibration for many industries such as chemical, food, energy, etc.
Testing of safety valves, switches and transmitters
Failure testing

Description

Technical specifications

Presentation	110 mm x 50 mm stainless steel case
Input signal	Pressure
Interval	Pressure, see available ranges (table A)
Uncertainty	0,10% FS – 0,05% FS
Resolution	5 ½ digits, 21mm high (max. reading 199999)
Fluid in contact	Compatible with stainless steel 316 (for ranges>1 bar)
Connection	1/8” BSP male 60º conical
Display	350 LCD segments, with blue LED backlighting
Units	Multiple selectable
Feeding	Batteries 3 x AA (LR6) alkaline + external power supply 10 to 30 Vdc
Autonomy	1200h (in operation without backlight)
Advanced functions	Max/min, alarms, tare, password
Protection	IP65
Storage temperature	-10 a 60ºC
Working temperature	0 to 50ºC
Relative humidity	0 to 95% non-condensed
Accessories	Supplied with batteries, instruction manual in English, connection cables and factory calibration certificate.
Warranty	2 years

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