Endress+Hauser Prosonic Flow 90, Operating Instructions Manual

Page: 37 / 114

Proline Prosonic Flow 90 4 Wiring
Hauser 37
4.2 Connecting the measuring unit
4.2.1 Connecting the transmitter
#
Warning!
• Risk of electric shock. Switch off the power supply before opening the device. Do not install or
wire the device while it is connected to the power supply. Failure to comply with this precaution
can result in irreparable damage to the electronics.
• Risk of electric shock. Connect the protective conductor to the ground terminal on the housing
before the power supply is applied (not necessary if the power supply is galvanically isolated).
• Compare the specifications on the nameplate with the local supply voltage and frequency. The
national regulations governing the installation of electrical equipment also apply.
1. Remove the cover of the connection compartment (f) from the transmitter housing.
2. Feed the power supply cable (a) and signal cables (b) through the appropriate cable entries.
3. Wiring:
– Connection plan (wall-mount housing)
→
Fig. 35
– Terminal assignment
→
Page 38
4. Screw the cover of the connection compartment (f) firmly back onto the transmitter housing.
A0001135
Fig. 35: Connecting the transmitter (wall-mount housing) Conductor cross-section: max. 2.5 mm
2
a Power supply cables: 85...260 V AC, 20...55 V AC, 16...62 V DC
Terminal No. 1: L1 for AC, L+ for DC
Terminal No. 2: N for AC, L
–
for DC
b Signal cable: terminals No. 20–27
→
Page 38
c Ground terminal for protective earth (PE)
d Ground terminal for signal cable shield
e Service adapter for connecting service interface FXA 193 (Fieldcheck, ToF Tool - Fieldtool Package)
f Cover of the connection compartment
1 2
c d
e
a
a
b
b
f
+
22
–
23
+
20
–
21
+
24
–
25
+
26
–
27
L1 (L+)
N (L-)