168-082010_ 210-212 Meter/Controller Page 5 of 17
1.2. Specifications HFM-210
Accuracy
1
and Linearity ........................................................................................................................±1% F.S.
Repeatability .........................................................................................................................±0.05% F.S. (max.)
Standard Pressure Rating ....................................................................................................................... 500 psig
Pressure Coefficient ....................................................................................+0.0067% Rdg/psi (0-1000 psig N
2
)
High-Pressure Option ................................................................................................... Proof tested to 1500 psig
Leak Integrity ..................................................................................................................................< 1x10
-9
sccs
Temperature Coefficient ........................................................................................Zero ±0.08% F.S./°C (max.)
............................................................................................................... (0°-50°C) Span ±0.15% Rdg/°C (max.)
STP .........................................................................................................................................0°C and 760 Torr
Input Power ............................................................................................................±15 VDC at ±30 mA (max.)
Flow Signal ..................................................................................... 0-5.00 VDC or 4-20 mA (inherently linear)
Wetted Material
2
..........................................................................................316 SS, Viton®, 82/18 Au/Ni Braze
Connector ........................................................................................................................15 pin Subminiature D
Fittings Available ................................................................................... Swage (1/8”, 1/4” & 3/8”), VCO, VCR
Weight (approx.) ......................................................................................................................... 1.8 lb (0.82 kg)
1.3. Specifications HFC-212
Accuracy
1
and Linearity ........................................................................................................................±1% F.S.
Repeatability .........................................................................................................................±0.05% F.S. (max.)
Standard Pressure Rating ....................................................................................................................... 500 psig
Pressure Coefficient ....................................................................................+0.0067% Rdg/psi (0-1000 psig N
2
)
Control Valve DP
* ............................................................................................................. Per customer request
High-Pressure Option ................................................................................................... Proof tested to 1500 psig
Leak Integrity ..................................................................................................................................< 1x10
-9
sccs
Temperature Coefficient......................................................................................... Zero ±0.08% F.S./°C (max.)
............................................................................................................... (0°-50°C) Span ±0.15% Rdg/°C (max.)
STP .........................................................................................................................................0°C and 760 Torr
Input Power ............................................................................................ ±15 VDC at +60 mA/-185 mA (max.)
Flow Signal ..................................................................................... 0-5.00 VDC or 4-20 mA (inherently linear)
Command Input ............................................................................................ 0-5.00 VDC or 4-20 mA available
Wetted Material
2
..............................................................................316 SS, Nickel, Viton®, 82/18 Au/Ni Braze
Connector ........................................................................................................................15 pin Subminiature D
Fittings Available ................................................................................... Swage (1/8”, 1/4” & 3/8”), VCO, VCR
Weight (approx.) ......................................................................................................................... 1.8 lb (0.82 kg)
1
Stated accuracy is for nitrogen or other gas specific calibration and use with this gas only.
2
Other materials are available. Viton is the standard O-ring option.
* Specifications may vary for instruments with ranges greater than 10 SLM.
1.4. Optional 4-20 mA Current Output
An option to the standard 0-5 VDC output is the 4-20 mA current output that is proportional to flow. The 4 -
20 mA signal is produced from the 0 - 5 VDC output of the Flowmeter. The current loop output is useful for
remote applications where pickup noise could substantially affect the stability of the voltage output.
The current loop signal replaces the voltage output on pin 6 of the “D” connector. The current loop may be
returned to either the power supply ground or the -15 VDC connections on the power supply. If the current
