Key parameters
729 Pro 7M
729 Pro 4M
Pressure control range
-13 to 1000 psi, -90 to 7000 kPa,-0.90 to 70 bar
-13 to 600 psi, -90 to 4000 kPa, -0.90 to 40 bar
Pressure type
Gauge/absolute (Depends on the type of internal or external pressure module
Pressure accuracy and Control stability
0.02% of FS, 0.005% of FS
Replaceable pressure measurement modules
Yes, 6 modules
Yes, 4 modules
mA sourcing/measurement
Yes
Pressure switch testing
Yes
Pressure leakage testing
Yes
HART Communication
Yes, basic commands supported
Autostep / auto ramp
Yes (with customizable speed, mode and style)
Battery
Rechargeable lithium battery with charge indication (charged in the instrument or separately)
Electrical specification
All specifications are valid to 110% of range, except 24 mA source and simulate which are valid to 100% of range.
Ranges
mA measure, source and simulate
0 mA to 24 mA
Volts dc measurement
0 V dc to 30 V dc
Resolution
mA dc source, simulate and measure
1 μA
Voltage dc measurement
1 mV
Accuracy
0.01% FS ±2 LSD all ranges (at 23 °C ±5 °C)
Stability
20 ppm FS /°C (-10 °C to +18 °C and 28 °C to 50 °C)
mA simulation working voltage
12 V dc to 30 V dc
Loop compliance voltage
24 V dc @ 20 mA
Temperature measurement , 100 Ω Pt(385) RTD
-50 °C to 150 °C
Temperature resolution
0.01 °C
Temperature accuracy
±0.1 °C ±0.25 °C combined uncertainty when using 720 RTD probe (optional accessory)
Drive capability (mA source)
1200 Ω (without HART resistor), 950 Ω (with internal HART resistor)
Mechanical specification
Dimension (HxWxL)
290 x 215 x100 mm
Environmental specification
Operating temperature
-10 °C to 50 °C
Pressure control
0 °C to 50 °C
Battery charging
0 °C to 40 °C
Storage temperature
-20 °C to 60 °C
Operating altitude
<3000 m
Operating humidity
Non-condensing (<10°C); ≤90 % RH (10 °C to 30 °C); ≤75 % RH (30 °C to 40 °C); ≤45 % RH (40 °C to 50 °C)