24
INSTALLATION AND OPERATION MANUAL – OWNER'S RECORD FFD MANUAL – FILTER FAILURE DETECTOR
9.1 PROCESS AND APPLICATION CONDITIONS
Stack temperature range
C
–20 to 200°C (–4 to 390°F)
SENSOR – KEY DATA
Flue gas velocity
>4 m/s
Dust level response
<1 to 500 mg/m³ (dependent upon application)
Application conditions
Suitable for measurement in non-condensing flue gases.
Note:
not recommended for deployment downstream of ESPs or in applications with
water droplets or mist at monitoring point.
ENVIRONMENTAL INFORMATION
Location
This equipment is for outdoor or sheltered use.
Altitude category
2,000 m (6,500 ft.), max.
9.1.1 User Controls and Functions
Reference period
1–120 minutes (user definable)
Alarm levels
• Alarm Level 1: adjustable from 2 to 10,000 units
• Alarm Level 2: fixed (50% of Alarm Level 1)
Alarm delay period
1 or 2 minutes
Data smoothing
One-minute data averaging
9.2 SENSOR SPECIFICATION
FFD SENSOR
Sensor variants
Standard sensor: 0–200°C (up to 390°F)
Weight
approx. 1930 g (4.3 lb)
Probe rod material
316 Stainless Steel, PTFE (insulator)
Cable entries
2
×
M16 cable glands
ENCLOSURE
Ambient temperature range
C
–20 to +50°C (–4 to 120°F)
Dimensions
W 111
×
H 135 x D 74 mm (4.4
×
5.3
×
3 in.), excl. cable glands
Protection rating
IP65
Material
Die-cast aluminium LM6M (epoxy coated)
POWER REQUIREMENTS
Power supply voltage
16–24 V DC
Current consumption
max. 100 mA
I/O
Local outputs
2
×
Alarm relays:
• volt-free SPCO
• current rating 1 A DC (@ 30 V) per contact
• non-fail-safe operation only.
1
×
4–20 mA output: 250
Ω
, non-isolated.
C
At monitoring point. Please note that imperial temperatures given are nominal values.
9 TECHNICAL DATA