Wiring; Adjustment; Pressure Switches With Manual Reset - Honeywell C6097A Operating Instructions Manual

Ports
1 for
4
positive pressure ( ¼" NPT )
1
4 for
negative pressure (
Pressure Connect
Positive
Negative
1 for higher absolute pressure.
Differential
4 for lower absolute pressure.
CAUtIon
Port 4 is connected the upper diaphragm cham-
ber with the micro switch. For this reason, pipes
carrying gas must not be connected to port 4.
➔ The pressure switches are supplied with an inte-
grated vent limiter. In the event of a diaphragm
tear, the vent limiter limits the escape of gas
to less than 1.0 CFH of natural gas at 7 psi. If
necessary, port 4 (1/8" NPT) can be used to
connect the venting line.
➔ A filter pad at port 4 protects the electrical
contacts in the C6097 from dirt particles in the
surrounding air or in the medium.

4 WIRInG

CAUtIon
To ensure that the C6097 is not damaged during
operation, note the switching capacity, see page
5 (10 Technical data).
In the case of low switching capacities, such as
24 V, 8 mA, for example, we recommend using an
RC module (22 Ω, 1 μF) in air containing silicone or
oil.
1 Disconnect the system from the electrical power
supply.
2 3
½" NPT conduit:
Ø 0.4" (10 mm)
5 6
➔ C6097A: The NO-to-COM connection is inter-
rupted if the pressure drops (contacts 3 and 2
open).
C6097B: The NC-to-COM connection is inter-
rupted if the pressure rises (contacts 3 and 1
open).
/ " NPT )
1
8
Free
1 4
4 1
4
1
2
NC
NO
NO
2 COM
NC 3
1
½"NPT

5 ADJUstMent

➔ The switching point is adjustable via hand wheel.
1 Disconnect the system from the electrical power
supply.
2 Unscrew the housing cover.
➔ Once the settings have been adjusted suc-
cessfully, fit the housing cover again. Note the
tightening torques, see page 5 (10 Technical
data).
3 Connect an ohmmeter.
NO
COM
2
3
NC
1
4 Set the switching point using the hand wheel.
5 Connect a pressure gauge.
0
1 cm = 1 mbar
6
(0.4" = 0.4"WC)
7 Apply pressure. In doing so, monitor the
switching point on the ohmmeter and the
pressure gauge.
8 If the C6097 does not trip at the desired
switching point, correct the adjusting range
using the hand wheel. Relieve the pressure and
repeat the process.
5.1 Adjusting range
➔ Adjusting range, switching differential and max.
inlet pressure, see page 5 (10 Technical
data).
6 PRessURe sWItCHes WItH
MAnUAL Reset
➔ C6097A3012, C6097A3038, C6097A3095,
C6097A3111 lock off if the pressure drops to the
set value.
➔ C6097B3002, C6097B3028, C6097B3051 lock
off if the pressure rises to the set value.
Reset the pressure switch using the manual reset.
➔ Requirement for reset:
3
C6097A: The pressure must have risen at least
COM
to the set switching point plus the pressure
differential between the switching pressure and
possible lock-off.
C6097B: The pressure must have dropped at
least to the set switching point minus the pres-
sure differential between the switching pressure
and possible lock-off.
➔ For details of the pressure differential between
the switching pressure and possible lock-off, see
page 5 (10 Technical data).
EN-3
1
3
2 NC
COM
NO