Fuji Electric ZFK8 Instruction Manual page 16

Ejector system
Ejector (ZTA)
Gas temperature.
1500ºC max.
Detector (ZFK8)
6 1 3
5 2
Black
Yellow
Bule
6mm or 1/4 inch tube
for calibration gas
(not supplied)
RS485
(option)
to Detector
Note: *1 Standard gas or instrumentation air can be used in place of span gas.
*2 Instrument quality air or bottled air is available as reference air instead of ambient air.
*3 Protective earth.
*4 Connect the shield of a exclusive cable with the ground terminal in the converter.
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Ejector (5 to 10L/min)
1 Power supply
2
4 Heater temperature drop
5
Alarm
Copper pipe
10/ 8mm
(not supplied)
4
White
White
Red
1 2 3 4
＋ − ＋ −
O2 TC1
O2 input
Thermocouple
input
*4
Thermocouple
for combustion
control
＋ −
TC2 DI1
15 16 17
TM-2
(1 to 1.5L/min)
Joint
Flowmeter
(ZBD4)
*2 Ref. air
(0.2 to 0.5L/min)
(not supplied)
Flowmeter
Reduction valve
(ZBD)
(unnecessary when supply air pressure
is 200 to 300kPa )
Joint
Copper pipe 6/ 4mm
(not supplied)
Solenoid valve
Copper pipe 10/ 6mm
(not supplied)
(not supplied)
AC power
supply
Rainproof flexible
conduit.
(Max. 20m)
5 6 7 8 9 10 11
AO
＋ −
ZV
or
FAULT BLOW ZERO
GAS
Calibrating
Blow
Fault
gas contact
contact contact
Analog output
output
output output
4 to 20mA DC
or 0 to 1V DC
Alarm Maintenance
contact contact
output output
Contact input ALARM MAINTE
DI3 DICOM
DI2
18 19 20 21 22 23 24
Reduction
Solenoid valve
valve (ZBD6)
(not supplied)
Standard gas
for zero point (ZBM)
Reduction valve (unnecessary when
supply air pressure is 50 to 100kPa)
Reduction
Solenoid valve
valve (ZBD6)
(not supplied)
*1 Standard gas for
span point (ZBM)
Supply air
TM-1
12 13 14
HEATER
Calibrating gas
contact output
*3
AC power
SPAN
supply PE
GAS
AC
N
COM SV L
25 26 27 28
AC power
supply
*1 Air supply
Span gas