TESTO 6448 Instruction Manual page 12

Compressed air counter probe
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3 Specifications
Inputs and outputs
Analog outputs
Output type
Load
Further outputs
Pulse output
Switching output
Capacitance
Supply
Voltage supply
Current
consumption
Connection
General technical data
Housing design
Housing material
Weight
Media contact
Protection class
Display
Display
Display units
12
4 to 20 mA (4-wire), freely scalable between
zero and the end of the measuring range for
m³/min, m³/h, m/s and °C
Max. 500 Ω
Pulse valence adjustable in increments of 1
m³ (recommended increments are 1 m³, 10
m³, 100 m³ and 1,000 m³, or preset counter
up to 1,000,000 m³)
2 switching outputs, programmable
(dependent on consumption or volumetric
flow, NC or NO contact, hysteresis, window),
switch statuses are displayed via 2 LEDs
Can each carry a load of max. 18 to 30 V DC
or 250 mA
18 to 30 V DC, power consumption < 100 mA
<100 mA
M12 x 1 plug, load capacity up to 250 mA,
short-circuit-proof (synchronised), protected
against polarity reversal, overload-proof
PBT-GF 20, PC (APEC), Makrolon, V2A
(1.4301), Viton
850 g
V2A (1.4301), glass-coated ceramic, PEEK,
polyester, Viton, anodised aluminium
IP65 / III
4-digit alphanumeric display, two operating
buttons, operation menu, LEDs (6x green for
physical units, 2x yellow for switch statuses)
m³/min, m³/h, m/s, m³, °C

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