Troubleshooting
6-26
Part 1128350_02
E 2020 Nordson Corporation
Checking the Resistance of the Tank, Grid, and Manifold Heaters (contd)
Table 6-8 Heater Resistance
Model Grid Marking
Grid Heater Cold Resistance
(See Note A)
7 kg/hr Model
1/3 Ø AC 200-240V 50/60 HZ
1/3 Ø N/PE AC 400/230V 50/60 HZ
700W, 230V 68 – 79 ohms
7 kg/hr Model
3 Ø AC 480V 50/60 HZ
3 Ø AC 400V 50/60HZ
700W, 400/480V 273 – 316 ohms
14 kg/hr Model
1/3 Ø AC 200-240V 50/60 HZ
1/3 Ø N/PE AC 400/230V 50/60 HZ
1200W, 230V 40 – 46 ohms
14 kg/hr Model
3 Ø AC 480V 50/60 HZ
3 Ø AC 400V 50/60HZ
1200W, 400/480V 159 – 184 ohms
NOTE A: Resistance across two heaters wired in series.
Table 6 -9 Manifold Heater Cold Resistance
Manifold Heater Cold Resistance
230V, 1000W 48 – 55 ohms
230V, 2500W 19 – 22 ohms
480V, 1190W 175 – 203 ohms
480V, 2500W 83 – 96 ohms
Table6-10TankHeaterColdResistance
Model
Tank Marking
Cold Resistance
4kgTank 230V, 1000W 48 – 55 ohms
4kgTank 480V, 1190W 175–203ohms
7kgTank 230V, 1200W 40 – 46 ohms
7kgTank 480V, 1700W 122–142ohms
10 kg Tank 230V, 1200W 40 – 46 ohms
10 kg Tank 480V, 1700W 122–142ohms