Operating Instructions
J22 TDLAS Gas Analyzer
30
Hauser
Fig 32. Heater electrical connections
1
Line
2
Neutral
3
Ground
7.
Attach the neutral and hot wires to the power terminal blocks using a Phillips screwdriver.
EU: Wire colors: Brown/blue (power), green/yellow (ground).
USA: Wire colors: Black/white (power), green or green/yellow (ground).
Use copper wire only with temperature rating -40
°
C to 105
°
C.
8.
Replace the junction box cover and secure the locking screw.
9.
Close the sample system enclosure door.
4.6.9
Connecting the flow switch
The J22 TDLAS Gas Analyzer can be offered with a variable flow meter equipped with an optional mechanical display
and reed contact to measure the volume flow of flammable and non-flammable gases.
Installation shall be in accordance with the National Electric Code
NFPA 70, Article 500 to 505, ANSI/ISA-RP
12.06.01, IEC 60079-14 and Canadian Electrical Code (CEC) Appendix J for Canada.
The equipment is not capable of passing a 500V r.m.s. dielectric strength test in accordance with Clause 6.3.13 of
IEC 60079-11 between the intrinsically safe connections and the equipment enclosure. This shall be taken into
account in any equipment installation.
Certified cable through gland Ex eb IIC and IP66 rated suitable for temperature range of -20
°
C to 60
°
C shall be
used.
Only insulated cables with insulation capable of withstanding a dielectric test of at least 500 VAC or 750 VDC
shall be used in intrinsically safe circuits.
To connect the flow switch, run shielded interconnection cable with shield connected to FM approved associated
apparatus ground. The maximum temperature of terminals, cable glands and wires should be no greater than 60
°
C
dependent of ambient and product temperature.
The variable area flow meter with coated parts shall be installed and maintained such that the risk of
electrostatic discharge is minimized.
4.6.10
Threaded entries
Threaded entry locations for the panel configuration are the same as shown for the enclosed sample system below.
Thread lubricant must be applied on all conduit hub threaded connections. Using Syntheso Glep1 or equivalent
lubricant on all conduit screw threads is recommended.
