ALM Differential Pressure transmitter type 401


	Pressure Transmitter
	Differential Pressure Transmitter
	Electronic Pressure Switches
	Pressure Level Transmitter
	Overpressure And Vacuum Switches
	Differential Pressure Switches
	Digital Indicating Device
	Force Cells
	Pressure Measuring Cells

Differential pressure transmitter

Type 401

0 - 3 / 0 - 5 mbar

Pressure range gradation and executions see order code selection table
(PDF Datasheet)

Technical data
Medium	Air, neutral gases
Overload allowed	25 mbar (100 mbar shortly at room temperature)
Rupture pressure	200 mbar
Accuracy	Transmitter - type	3 mbar	5 mbar	Unit
	Zero point tolerance	< ± 0.5	< ± 0.5	< % FS
	Tolerance full scale	< + 0,5 to - 1,5% FS	< + 0,5 to - 1,5% FS	% FS
	Linearity, hysteresis and
	repeatability	< ± 0.3	< ± 0.3	% FS
	long-term stability	< ± 1.0	< ± 1.0	% FS
	TC zero point	< ± 0.02	< ± 0.02	% fs/K
	TC zero point	< ± 0.03	< ± 0.03	% fs/K
	TC sensitivity	< ± 0.01	< ± 0.01	% fs/K
	Positional error 0 - 90°	4.0	2.6	% FS
Leack rate	< 5 cm3/h (air) measuring range
Materials in contact with the medium	Cover: polypropylene (PPO)
	Diaphragm: LSR (Liquid Silikon Rubber)
	Sensor: Ceramic AL203 / glass
Temperature influences	Medium and ambient temperaturer
	0°C up to + 70°C
	Storage temperatur 1 - 15°C to + 70°C
Dynamic response	Response time:
	< 10 ms / Load cycle: < 10 Hz
Outputs and power supply	Power supply: Nominal 12 VDC (10.4 ... 18 VDC)
	Power supply possible up to 28 VDC
	(with higher starting drift)
	Output: 0.5 ...4.5 VDC
Load	> 15 kOhm (against GND)
Current consumption	< 8 mA