Martel Electronics BetaGauge 311, BetaGauge 321 Specifications

Highest Precision and Accuracy

The BetaGauge 321A/311A

Whichever you choose, the single sensor BetaGauge 311A, or

the dual sensor BetaGauge 321A, you’ll have everything

you need for calibrating pressure anywhere. Gas

custody transfer is the ideal application for the accuracy

and capabilities of the BetaGauge 321A. Select from two

standard conﬁgurations: 15 psi/1500 psi, or 30 psi/3000

psi, or create a custom conﬁguration by selecting between

any two ranges. The BetaGauge 311A can be conﬁgured by

selecting from any range from 0.4, 1, 5, 7, 15, 30, 50, 100, 150,

300, 500, 1000, 1500, 3000, 5000, or 10000 psi. Both are

supplied with soft case, AA batteries, manual, NIST-traceable

certiﬁcate, and test leads. Both are available in kits including the

Pressure Calibrator, Pt100 RTD Probe, AA batteries, manual, NIST-

traceable certiﬁcate, test leads, and hard-sided carrying case.

inproved ‘A’ version provides enhanced features over the predecessor,

including a Power-Tool-Tough case, custom engineering units, user-adjustable

resolution, and enhanced stability.

The

BetaGauge 321A

Dual Sensor

BetaGauge 311A

Single Sensor

General Features

For intrinsically safe applications choose the 311A-Ex or 321A-Ex versions

Two isolated, stainless steel, pressure sensors with 0.025% F.S. accuracy (one on 311A)

27 available pressure ranges

Temperature-compensation ensures accuracy in the ﬁeld applications

External pressure module connection supports all BetaPort-P pressure modules (27 ranges) for even more measurement capability (unavailable on Ex unit)

Pt100 RTD input for temperature measurement, accurate to

0.1°C (0.2°F)

Measure 4-20 mA input

Internal 24 V Loop Power Supply can power a transmitter under test (unavailable on Ex unit)

Measure up to 30 V DC (unavailable on Ex unit)

Large graphic style LCD with backlight can be conﬁgured to display up to 3 inputs simultaneously (i.e. pressure 1, pressure 2, and RTD or any combination of inputs)

Ideal for gas ﬂow calibration (custody transfer) applications

Pressure displayed in the user’s choice of 17 engineering units plus custom

Switch test on Pressure 1, Pressure 2, or external pressure module

Operating mode layers support simple measurements to complex applications

Up to ﬁve frequently used setups can be stored; last setup automatically recalled on power-up

% Error and damping functions

Small, rugged compact design operates on four (4) standard AA batteries

Specifications

(15 °C to 35 °C, unless otherwise noted)

Ranges (see table at right)

TD input range

R (Pt100-385) -40°C to 105°C (-40°F to 220°F) Temperature Effect

No effect on accuracy on all functions from 15°C to 35°C Add ±0.002% F.S./°C for temps outside of 15°C to 35°C

Engineering Units

si, bar, mbar, kPa, kg/cm

O@4°C, mmH2O@20°C, inH2O@4°C, inH2O@20°C,

mmH

inH

O@60°F, mmHg@0°C, inHg@0°C, MPa, FT H2O@60°C

plus 2 custom at time of order

cmH

@4°C, cmH

@20°C,

Accuracy

Pressure

0.4 psi ±0.1 % FS

1.0 psi ±0.05 % FS 15 to 3000 psi ±0.025 % FS

5,7, 5000, 10000 psi ±0.035 % FS mA ±0.015% of reading ±0.002mA Volts ±0.015% of reading ±0.002V RTD input range (Pt100-385) ±.01°C Temperature Effect No effect on accuracy on all functions from 15°C to 35°C Add ±0.002% F.S./°C for temps outside of 15°C to 35°C

General

Instrument Setup Recall 5; last used on power-up Environmental

Operating Temperature -10 °C to +50 °C

Storage Temperature -20 °C to +60 °C Power Requirements 6.0 VDC

Battery Four (4) standard AA cells

Battery Life >35 hours, typical usage Physical

Dimensions 8.3” H x 3.9”W x 1.8”D

(21.082 x 9.906 x 4.572 cm)

Weight 1 lbs, 4 oz. (0.567 kg) Connectors/Ports Pressure

Two, 1/8” NPT

External BetaPort-P pressure module;

RTD

Available Ranges

Ranges:

Isolated Gauge (PSIG):

0 to1000 (0 to70 Bar), 0 to 1500 (0 to 100 Bar), 0 to3000(0to200 Bar), 0 to 5000 (0 to340Bar), 0 to10000 (0 to700 Bar)

Non Isolated Compound (PSIG):

-0.4 to 0.4 (-25 to 25 mBar), -1 to 1 (-70 to 70 mBar), 5 to5(-350 to 350 mBar), -7.2 to 7.2 (-500 to500 mBar),

-15 to 15 (-1 to 1 Bar), -15 to 30 (-1 to 2 Bar)

Isolated Compound (PSIG):

-12 to 50 (-0.8 to 3.5 Bar), -12 to 100 (-0.8 to 7 Bar),

-12 to150 (-0.8 to10 Bar), -12 to300 (-0.8 to 20 Bar),

-12 to 500 (-0.8 to 35 Bar)

Isolated Absolute (PSIA):

0 to 15 (0 to 1 Bar), 0 to 30 (0 to 2 Bar), 0 to 100 (0 to 7 Bar), 0 to 150 (0 to 10 Bar), 0 to 300 (0 to 20 Bar)

Non Isolated Differential (PSID):

-0.4 to 0.4 (-25 to 25 mBar), -1 to 1 (-70 to 70 mBar),

-5 to5(-350 to 350 mBar), -12 to 30 (-0.8 to2 Bar),

-12 to 50 (-0.8 to 3.5 Bar), -12 to 100 (-0.8 to 7 Bar)

BetaGauge 311A-321A Ordering Information

Part Number Description

1919299 BetaGauge 311A, specify range from table above except for

1919689 BetaGauge 311A with high strength stainless steel manifold

1919275 BetaGauge 321A-15/1500 with 15 psi/1 bar & 1500 psi/100 bar

1919243 BetaGauge 321A-30/3000 with 30 psi/2 bar & 3000 psi/200 bar

1919276 BetaGauge 321A with custom ranges from table above except

1919550 BetaGauge 321A with high strength stainless steel manifold

1919307 BetaGauge 311A, specify range from table above 1919280 BetaGauge 321A-15/1500 calibrator as above 1919281 BetaGauge 321A-30/3000 calibrator as above 1919282 BetaGauge 321A with custom ranges from table above

10,000 psi/700 bar

for 10,000 psi/700 bar range or specify range from table above

internal ranges

for 10,000 psi/700 bar

for 10,000 psi/700 bar range, specify ranges from table above

All units above include

• Batteries

• Test leads

• NIST traceable calibration certificate

• User guide

• Soft sided carrying case

Custody Transfer Calibration Kits

All custody transfer calibration kits include

• Hard sided carrying case

• LTP-100A 100Ω RTD probe