Operating Instructions
TM888300 Rev. (Al), August 2019
53
7.4
Safety Precautions
After powering up, the detector requires minimal attention for proper functioning,
but the following should be noted:
•
Follow the manual instructions, and refer to the drawings and specifications
issued by the manufacturer.
•
Do not open the detector/source housing while power is connected.
•
External devices such as automatic extinguishing systems must be
disconnected before performing maintenance tasks required by the warranty.
7.5
Signal Verification
Perform signal verification through the host software supplied by SPECTREX
(refer to
Manual TM899050
) or by the HART handheld unit (refer to
Manual
TM899030
).
7.5.1
Signal Values Limitation
Table 13 describes the maintenance data channels limitation values.
Table 13: Maintenance Channel Limitation Values
Channel
Short
Range
Medium
Range
Long
Range
Maintenance
5m
20m
15m
40m
35m
60m
Reference
2V
Gain
0
1.5V
Gain
2
2V
Gain
0
1V
Gain
1
2V
Gain
1
1V
Gain
2
The minimum
signal allowed
is 2V at Gain 4
Signal 1 and 2 2V
Gain
0
1.5V
Gain
2
2V
Gain
0
1V
Gain
1
2V
Gain
1
1V
Gain
2
The minimum
signal allowed
is 2V at Gain 4
Ratio 1 and 2
0.6
–
1.4
0.5
–
3
NQRat
1 and 2
0.97
–
1.03
Must be 0.97
–
1.03
ppm.m
0ppm.m
0ppm.m
Temperature
Up to 77°F/25°C beyond room temperature
Up to
77°F/25°C
beyond room
temperature
Voltage
32VDC > V > 18VDC
32VDC > V >
18VDC
Note:
The installation information refers to the installation distance.