Page 3
Millwatch/Silowatch
Single Stream
User Guide
3 Service Requirements
Service
Requirement
Size/Specification
1 Calibration gas*
1 to 2 bar (15 to 30 psi)
CO in Nitrogen
20 litres (0.7ft
3
)
4 l/min (0.15 ft
3
/min)
during calibration
1/4 in outside diameter
PTFE, nylon or stainless
steel tube
2 Instrument air*
1 to 2 bar (15 to 30 psi)
dry. regulated, clean, oil
free compressed or bottled
air
1/4 in outside diameter
PTFE, nylon or stainless
steel tube
3 Condensate removal
Optional
1/2 in NPT - 14 female
route to collection device
4 Electrical power supply
+
83 to 132 V or
165 to 264 V a.c.
50 to 60 Hz 300 W
Cable 3 way
Core size 24/0.2 minimum
5 Cooling air
4 bar (60 psi) minimum
8 bar (120 psi maximum)
Clean. Oil-free
300 l/min (10 ft
3
/min)
1/4 in outside diameter
PTFE, nylon or stainless
steel tube
6 Sample line connection
15 m (50 ft) maximum
nylon/antifreeze
Outside diameter 1/4 in
Sample flow rate is
1.5 l/min (0.05 ft/min)
7 Exhaust
Must be kept at atmospheric
pressure.
Do not allow back pressure
Optional
3/16 in barbed fitting for
4.7 mm inside diameter
tubing. Vent to safe area.
8 Cable glands
Customer's connections
Cable diameter 7 to 10.5
mm (0.58 to 0.41 in)
9 Calibration gas to probe 15 m (50 ft) maximum
nylon/antifreeze
1/4 in outside diameter
PTFE, nylon or stainless
steel tube
10 Blow-back air
4 to 8 bar (60 to 120 psi)
1/4 in outside diameter
PTFE, nylon or stainless
steel tube
* these MUST be set to the same pressure
+ electrical power supply connected to terminal rail, where fitted
