• Multi-Parameter functionality: Mass Flow, Volumetric Flow, Gas Pressure and Temperature.
• Multi-Gas functionality: support for 90 different gases and gas mixes.
• “User Defi ned Mixture” functionality allows to create and store up 20 custom gas mixes with up to 5 different gases each.
• Quick (< 20ms) response time.
• Standard accuracy ± (0.5% RD + 0.2% FS).
• 200 to 1 turndown ratio.
• Two programmable mass fl ow rate totalizers.
• High, Low or In Range Alarms with preset action delay for Mass Flow, Temperature and Pressure.
• User programmable mass fl ow rate Pulse Output (via SSR).
• Extensive Self Diagnostics with status LED or OLED indication.
• All 3 user selectable analog output interfaces are standard: 0-5Vdc, 0-10Vdc, 4-20mA.
• Two user selectable digital communication interfaces (RS-232 and RS-485) are standard.
• Optional Modbus RTU network interface with isolated RS485 transceiver.
• User programmable solid state relay with latch option.
• Universal 9-26 Vdc power supply input.
• Local high contrast OLED (optional) graphic display with joystick control.
• Free, easy-to-use confi guration and calibration software (RS-232/RS-485).

FLOW MEDIUM: Please note that DPM Mass Flow Meters are designed to work only with
clean, non-corrosive gases. Never try to measure fl ow rates of liquids with any DPM.
CALIBRATIONS:  Perform at standard conditions [14.7 psia (101.4 kPa) and 70 °F (21.1 °C)] unless otherwise requested or stated.
ENVIRONMENTAL (PER IEC 664): Installation Level II; Pollution Degree II.
FLOW ACCURACY (INCLUDING LINEARITY): ±(0.5% RD + 0.2% FS) at calibration temperature and pressure.
REPEATABILITY: ±0.15% of full scale.
FLOW TEMPERATURE COEFFICIENT: 0.05% of full scale/ °C or better.
FLOW PRESSURE COEFFICIENT: 0.01% of full scale/psi (6.895 kPa) or better.
FLOW RESPONSE TIME: Default 10 ms (adjustable by user).
INSTRUMENT WARM-UP TIME: < 5 seconds.
MAXIMUM MEASURABLE FLOW RANGE: 133% Full Scale.
OPERATING RANGE / TURNDOWN RATIO: 0.5% to 100% Full Scale / 200:1.
MASS REFERENCE CONDITIONS (STP): 70 °F & 14.696 PSIA (other available on request).
MAXIMUM INTERNAL GAS PRESSURE (STATIC):
DPM07 /17 /37 /47 /57 /67 /77 120 PSIG
DPM04 /14 /24 /34 /44 /54 50 PSIG
MAXIMUM INSTANTANEOUS DIFFERENTIAL PRESSURE ACROSS INLET AND OUTLET:
DPM07 /17 /37 /47 /57 /67 /77 12 PSID
DPM04 /14 /24 /34 /44 /54 9.75 PSID
PROOF PRESSURE:
DPM07 /17 /37 /47 /57 /67 /77 145 PSIG
DPM04 /14 /24 /34 /44 /54 50 PSIG
OPERATING TEMPERATURE: -10 to +60 °C (14 to 140 °F).
MOUNTING ATTITUDE SENSITIVITY: None.
RELATIVE GAS HUMIDITY RANGE: 0 to 100% (Non -Condensing).
INGRESS PROTECTION: IP40.
OUTPUT SIGNALS: Linear 0-5 Vdc (3000 ohms min. load impedance);
Linear 0-10 Vdc (5000 ohms min. load impedance); with power supply >= 12Vdc.
Linear 4-20 mA (550 ohms maximum loop resistance) with power supply >= 12Vdc.
Maximum noise 10mV peak to peak (for 0-5/0-10 Vdc output).
TRANSDUCER INPUT POWER:  9 to 26 Vdc, 150 mV maximum peak to peak output noise. Power consumption: 100 mA
maximum. Circuit board has built-in polarity reversal protection, 300mA resettable fuse
provide power input protection.
DIGITAL OUTPUT SIGNALS: Standard RS-232 or RS-485 (user selectable).
Optional Modbus over isolated RS-485 transceiver.
**MATERIALS FLUID CONTACT: 316 stainless steel, 416 stainless steel, high temperature polyamide, alumina ceramic,
epoxy, silicone, glass, gold. Viton® O-rings. 

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