Kamstrup MULTICAL 402 - Mounting of Flow Sensor; 4.1 Mounting of couplings as well as short direct sensor mounted in MULTICAL402 flow sensor

MULTICAL® 402
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Kamstrup A/S · Technical Description · 5512-742_M1_GB_01.2016
Pulse inputs VA and VB
VA: 65-66 and VB: 67-68 via module
Water meter connection
FF(VA) and GG(VB) = 01…40
Pulse input
680 kΩ pull-up to 3.6 V
Pulse ON
< 0.4 V in > 30 ms.
Pulse OFF
> 2.5 V in > 1.1 s.
Pulse frequency
< 0.5 Hz
Electrical isolation None
Max. cable length 25 m
Requirements to ext. contact
Leak current at function open < 1 µA
Pulse outputs CE and CV
CE: 16-17 and CV 18-19 via module
Type Open collector (OB)
Pulse duration Optionally 32 ms. or 100 ms.
External voltage 5…30 VDC
Current 1…10 mA
Residual stress
U
CE
≈ 1 V at 10 mA
Electrical isolation 2 kV
Max. cable length
25 m
2.3 Mechanical data
Environmental class Fulfils EN 1434 class A (MID class E1)
Ambient temperature 5…55°C, non-condensing, closed location (installation indoors)
Protection class Calculator: IP54
Flow sensor: IP65
Medium temperatures
Heat meters 402-V/W 15…130°C℃
At medium temperatures above 90°C in flow sensor, use of
flange meters is recommended, and the calculator should be
wall-mounted.
Cooling meters 402-T 2…50°C℃
Heat/cooling meters 402-T 2…130
Medium in flow meter Water
Storage temperature -25…60°C℃ (drained flow sensor)
Pressure stage (with thread) PN16
Pressure stage (with flange) PN25
Weight From 1.8 to 12 kgs. depending on flow meter size
Flow sensor cable 1.5 m (cable undemountable)
Connecting cables ø3.5…6 mm
Supply cable ø5…10 mm