Accuracy Comparison Between the Martel BetaGauge PI, BetaGauge PIR, and the Crystal XP2i

Martel BetaGauge PI

The BetaGauge P. I. Digital Pressure Test Gauge takes the concept of an analog Test Gauge, and brings it to a new level, as only Beta Calibrators can do. The BetaGauge P. I. combines the accuracy of digital technology with the simplicity of an analog gauge, and achieves performance, ease-of-use, and a feature set unmatched in the pressure measurement world. Setup of the BetaGauge P. I. is fast and straightforward, through a menu-driven display, with minimal text, and intuitive functions, that is simple enough to allow the gauge to be used anywhere in the world, without the need for multilingual displays.

Martel BetaGauge PIR

As with the original high accuracy BetaGauge PI gauges, the BetaGauge PIR takes the concept of a simple analog Test Gauge and combines it with the accuracy of digital technology. The new Reference Class gauges provide exceptional performance with ±0.04% of reading accuracy, especially when operated below 50% of their range. The Reference Class BetaGauge PIR digital test gauges are available six ranges – 30 psi Compound, 30 psig, 100 psig, 500 psig, 1,000 psig, and 3,000 psig. Setup of the BetaGauge PIR is fast and straightforward, through a menu-driven display, with minimal text and intuitive functions, that is simple enough to allow the gauge to be used anywhere in the world without the need for multilingual displays. Pressure readings are displayed in any one of 18 standard engineering units, or in user-defined custom units, eliminating tedious conversion calculations. Readings are displayed on a 5-1/2 digit, 0.65″ high digital display and companion percent-of-range bar graph. Accuracy is temperature-compensated over a 0 to +50 °C range. The internal temperature sensor measurement can be displayed in degrees Celsius or Fahrenheit.

Crystal XP2i

The new and improved XP2i has all of the innovative features of the XP2 digital pressure gauge and more. Now Intrinsically Safe, Class I, Division I, Groups A, B, C, and D, temperature code T4 with a backlit display. Available with optional dual line pressure display to view peak and live pressure simultaneously – ideal for relief valve testing

About Martel Calibrators:

Martel Electronics, founded in 1987 by David DeVries Sr. and Thomas Fatur, is a major manufacturer of test and measurement equipment, including calibrators. Our calibration products are used in the installation and maintenance of industrial instrumentation and OEM applications. With our strategic partnerships with leading OEMs serving the process industry, allows us to incorporate the latest technology and maintain high quality standards. Our products are sold through a network of expert and knowledge distributors.

Accuracy Comparison Chart for Martel Betagauges Models – PI, PIR vs the Crystal XP2i

Gauge Error Comparison
2000psi Crystal XP2i vs 2000psi BetaGauge PI vs 3000psi BetaGauge PIR


XP2i BetaGauge PI BetaGauge PIR
2000psi gauge 2000psi Gauge 3000psi Gauge
Measurement 0.1% of Reading

(Floor +/-0.02% FS)

0.05% of full scale

-

0.04% of reading

(Floor +/-0.01% FS)

0 0.40 1.00 0.30
50 0.40 1.00 0.30
100 0.40 1.00 0.30
150 0.40 1.00 0.30
200 0.40 1.00 0.30
250 0.40 1.00 0.30
300 0.40 1.00 0.30
350 0.40 1.00 0.30
400 0.40 1.00 0.30
450 0.45 1.00 0.30
500 0.50 1.00 0.30
550 0.55 1.00 0.32
600 0.60 1.00 0.34
650 0.65 1.00 0.36
700 0.70 1.00 0.38
750 0.75 1.00 0.40
800 0.80 1.00 0.42
850 0.85 1.00 0.44
900 0.90 1.00 0.46
950 0.95 1.00 0.48
1000 1.00 1.00 0.50
1050 1.05 1.00 0.52
1100 1.10 1.00 0.54
1150 1.15 1.00 0.56
1200 1.20 1.00 0.58
1250 1.25 1.00 0.60
1300 1.30 1.00 0.62
1350 1.35 1.00 0.64
1400 1.40 1.00 0.66
1450 1.45 1.00 0.68
1500 1.50 1.00 0.70
1550 1.55 1.00 0.72
1600 1.60 1.00 0.74
1650 1.65 1.00 0.76
1700 1.70 1.00 0.78
1750 1.75 1.00 0.80
1800 1.80 1.00 0.82
1850 1.85 1.00 0.84
1900 1.90 1.00 0.86
1950 1.95 1.00 0.88
2000 2.00 1.00 0.90
2050 NA NA 0.92
2100 NA NA 0.94
2150 NA NA 0.96
2200 NA NA 0.98
2250 NA NA 1.00
2300 NA NA 1.02
2350 NA NA 1.04
2400 NA NA 1.06
2450 NA NA 1.08
2500 NA NA 1.10
2550 NA NA 1.12
2600 NA NA 1.14
2650 NA NA 1.16
2700 NA NA 1.18
2750 NA NA 1.20
2800 NA NA 1.22
2850 NA NA 1.24
2900 NA NA 1.26
2950 NA NA 1.28
3000 NA NA 1.30
Conclusion:
The BetaGauge PI is better than the Crystal XP2i for half of the range of a 2000psi gauge
The BetaGauge PIR is better than the Crystal XP2i over the whole range even when comparing a
2000psi Crystal gauge to a 3000psi Martel gauge

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Mike is a finance industry executive with expertise in test, IT and avionics equipment acquisition, resale, residual valuation, leasing, renting and consignment.
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