KROHNE TIDALFLUX IFM 4110 PF EN User Manual
Page 58
7.30830.32.00
58
Switch off the power supply before starting work.
1) Remove the cover from the terminal compartment of the signal converter.
2) Disconnect all primary head cables from terminals 1, 2, 3, 7, 8, 20, 30, C, D and E having first noted down which cable
is connected to which terminal.
3) Connect the GS 8 A to the signal converter as shown above.
4) Slip plug H1 of cable Z into socket H on the front panel of the GS 8 A.
5) Connect the mA meter to terminals I+/I-:
inaccuracy 0.1%
R
i
= 15 – 500
Ω
range 20 mA
6) Connect the electronic totalizer to terminals P / P:
range 0 – 10 kHz
time basis at least 1 s
For further details on the totalizer and its connection for active or passive modes of operation please refer to the
connection diagrams in sect. 2.5.6.
7) Test as described on the following pages.
8) When the test is completed, disconnect the GS 8 A and reconnect the primary head and receiver instruments (items 4 to
1 above).
PLEASE NOTE
that an adapter is needed to connect the GS 8 simulator to the signal converter.
(adapter Order No. 210764.00)
Checking the setpoint reading
1) Switch on the power supply and allow at least 15 minutes for “warming up”.
2) Turn switch D (GS 8 A front panel) to “0”.
3) Adjust zero to 0 or 4 mA with the 10-turn potentiometer P (GS 8 A front panel), depending on the setting in Fct. 1.05,
deviation <
±
10
µ
A.
4) Calculate the position of switch Y and displayed setpoints “I” and “f”
4.1) X =
Q
100%
* K
GK * DN
2
Q
100%
full-scale range (100%) in unit volume V per unit time t.
GK
primary head constant, see instrument nameplate
DN
meter size DN in mm., not inches, see instrument nameplate.
t
time in seconds (sec.), minutes (min.) or hours (hr).
V
unit volume
K
constant according to the following table
t
V
Sec
min
hr
liters
25 464
424.4
7.074
m
3
25 464 800
424 413
7074
US Gallons
96 396
1 607
26.78
*
Caution: Do not remove the internal connection (conductor) in the terminal compartment of
the signal converter (yellow/green conductor) between U-clamp terminal and terminal 10.