Oil Leak Detector NAR 300 system
Endress+Hauser 23
NAR300-15xxxx wiring, Sensor I/F Ex box
NRR261-3xx, transmitter
*1
*2
*1：
*2：
Body
Seal Nut
Code holder
Board guard
Teminal box cover
Code holder
Connecting Screw M3
of Sealed cable
Cable Gland
Float Sensor cable
Connecting screw M5 of
GND Sealed cable
Connecting the NRR 262
of sealed cable
Please provide by customer
Please provide by customer
1. Remove the IS terminal box cover and the board guard.
2. Put the Float Sensor cable through the cable gland and the cable entry for IS terminal box.
3. Connect to terminal block.
4. Tighten up both the body and the seal nut of cable gland
using a torque wrench at approx. 1.96Nm (20kgf cm).
5. Fix the cable using the cable holder.
6. Mount the board guard and tighten up the cover.
4-1. Put the NRR 262 cable through the cable entry for terminal box
and connect to the terminal block
Attached cable gland
1. Remove Ex [ia] terminal box cover and Board guard.
2. Put Float Sensor cable through the cable gland and the cable entry for Ex[ia] terminal box.
3. Connect to the terminal block.
4. Tighten up both the body and the seal nut of cable gland
using a torque wrench at approx. 1.96N m (20kgf cm).
5. Fix the cable using the cable holder.
6. Mount the board guard and tighten up the cover.
Associated cable gland
Body
Float sensor cable
Board guard
Terminal box cover
5 Installation
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