Accuracy

±1% of full scale under calibration conditions including linearity over 59°F to 77°F (15°C to 25°C) and 10 to 60 psia (0.7 to 4 bara); +/- 2% of full scale including linearity under calibration conditions over 32°F to 122°F (0°C to 50°C) and 5 to 150 psia (0.3 to 10 bara); +/- 1% of full scale accuracy at a specific temperature and pressure is available with special calibration.

Repeatability

Temperature Coefficient

0.08% of full scale per °F (0.15% of full scale per °C), or better

830 (all) . . . . . . . . . . . 300 ms time constant;
second (typical) to within +/-2% of set point over 20 to 100% of full scale

Gases

0 to 10 sccm to 0 to 500 slpm; flow ranges specified are for an equivalent flow of nitrogen at 760 mm Hg and 21°C (70°F); other ranges in other units are available (e.g., scfh or nm³/h)

Gas Pressure

500 psig (34 barg) maximum;
30 psig (2 barg) optimum

Output Signal

Linear 0 to 5 VDC, 1000 ohms minimum load resistance
Linear 4 to 20mA, 500 ohms maximum loop resistance

Accuracy

Standard: ±1.0% of full scale including linearity under calibration conditions (±2.0% of full scale for 180M from 201 to 300 slpm)

High Accuracy Calibration: ±0.5% of reading + 0.3% of full scale at calibration conditions

Dial-A-Gas

±0.2% of full scale

Temperature Coefficient

±0.01% of full scale per psi (0.15% of full scale per bar), or better

Response Time

300 millisecond time constant; 2 seconds typical to within ±2% of final value (includes settling time). Faster or slower available upon request.

Mass Flow Rates

180M Medium Flow Size: 0-10 to 0-200 slpm full scale
180H High Flow Size: 0-100 to 0-1000 slpm full scale
Flow range specified is for an equivalent flow of nitrogen at
760 mm Hg and 21°C (70°F); other ranges in other units are available
(e.g., nlpm, scfh, NM³/H, kg/H)

Gas Pressure

500 psig (34.5 barg) maximum, burst tested to 750 psig (52 barg)

Gas & Ambient
Temperature

Gas: 32°F to 122°F (0°C to 50°C)
Ambient: -5 to 122°F (-20 to 50°C)

Leak Integrity

5 X 10^-9 atm. cc/sec of helium maximum
Power Requirements (ripple should not exceed 100 mV peakto-peak)
For All Mass Flow Meters: 15-24 VDC ±10%, (130 mA, regulated).

Output Signal

Analog:
Linear 4 to 20 mA, 500 ohms maximum loop resistance
and one of the following (user selectable):
Linear 0 to 5 VDC, 1000 ohms minimum load resistance
Linear 0 to 10 VDC, 1000 ohms minimum load resistance
Linear 1 to 5 VDC, 1000 ohms minimum load resistance

Digital:
RS-232
Modbus RTU

Accuracy

Repeatability

±0.5% of Full Scale

0.08% of Full Scale per °F (0.15% of Full Scale per °C), or better

Pressure Coefficient

0.01% of Full Scale per psi (0.15% of Full Scale per bar), or better

Response Time

800 ms time constant; six seconds (typical) within ±2% of final value over 25 to 100% of Full Scale

Mass Flow Rates

0 to 10 sccm up to 0 to 50 slpm; flow ranges specified are for an equivalent flow of nitrogen at 760 mm Hg and 21°C (70°F); other ranges in other units are available (e.g., scfh or nm³/h)

Gas Pressure

32 to 122°F (0 to 50°C)

Leak Integrity

1 X 10^-4 atm cc/sec of helium maximum

Power Requirements

12 to 15 VDC, 15 VDC nominal, 100 mA maximum 24 VDC optional

Output Signal

Linear 0 to 5 VDC, 1000 ohms minimum load resistance Linear 4 to 20 mA, 500 ohms maximum loop resistance

Display

3.5 digit LCD (0.6 in H); removable for remote mounting

Wetted Materials

10% glass-filled Nylon® 6/6, 316 stainless steel, nickel plating, Viton® “O”-rings standard
Neoprene® and 4079 Kalrez® “0”-rings optional

Accuracy

± 0.2% of full scale

Temperature Coefficient

0.025% of full scale per °F (0. 05% of full scale per °C), or better

Pressure Coefficient

2 seconds (typical) to within ± 2% of final value (includes settling time),
faster or slower available upon request (controllers only).

Gases

Measures and controls all clean gases including corrosives and toxics;
specify when ordering.

The following ten gases make up the Dial-A-Gas® feature of every SmartTrak instrument; up to nine alternate gases may be substituted.

Gas and Ambient Temperature

32 to 122°F (0 to 50°C)

Gas Pressure

5000 psig (333 barg) maximum, burst tested to 7500 psig (500 barg)

Leak Integrity

Analog:
Linear 4–20 mA, 500 ohms maximum loop resistance
and one of the following (user selectable):
Linear 0–5 VDC, 1000 ohms minimum load resistance
Linear 0-10 VDC, 1000 ohms minimum load resistance
Linear 1-5 VDC, 1000 ohms minimum load resistance

Accuracy

± 0.2% of full scale

Temperature Coefficient

0.025% of full scale per °F (0. 05% of full scale per °C), or better

Pressure Coefficient

2 seconds (typical) to within ± 2% of final value (includes settling time),
faster or slower available upon request (controllers only).

Gases

Measures and controls all clean gases including corrosives and toxics;
specify when ordering.

The following ten gases make up the Dial-A-Gas® feature of every SmartTrak instrument; up to nine alternate gases may be substituted.

Gas and Ambient Temperature

32 to 122°F (0 to 50°C)

Gas Pressure

5000 psig (333 barg) maximum, burst tested to 7500 psig (500 barg)

Leak Integrity

Analog:
Linear 4–20 mA, 500 ohms maximum loop resistance
and one of the following (user selectable):
Linear 0–5 VDC, 1000 ohms minimum load resistance
Linear 0-10 VDC, 1000 ohms minimum load resistance
Linear 1-5 VDC, 1000 ohms minimum load resistance

Accuracy

±0.25% of full scale

Temperature Coefficient

0.01% of full scale per psi (0.15% of full scale per bar), or better

Response Time

300 ms time constant; two seconds (typical) to within ±2% of final value including setting time. May be tuned to be faster or slower (consult factory)

Gases

The 50 Series can be calibrated for any gas compatible with viton, aluminum and stainless steel, using any units, to either normal or standard conditions, for flow rates up to 50 slpm air equivalent. Standard calibrations are available for ranges (slpm air equivalent) from 20 sccm/nccm to 50 slpm/nlpm. For measuring or controlling flows below 5 sccm, please consider Micro-Trak™ Model 101. Above 50 slpm, please consider the SmartTrak® 100 Series

Gas Pressure

15 to 20 psi (1.0 to 1.3 bar) see table

Gas and Ambient Temperature

5 X 10^-9 atm cc/sec of helium maximum

Power Requirements

15 or 24 VDC (+/- 10%) 85 mA regulated

Wetted Material

Anodized aluminum