GT-526S Manual Rev F
Page 23
Status Bits
Notes (for table above):
Bit
Value
Condition
0
OK (no alarms or errors)
1. CSV header included for multiple record
transfers like All Data (2) or New Data (3).
0
1
Count alarm size 1
2. Units determined by product setting.
1
2
Count alarm size 2
3. Temperature and RH will be null (,,) if
Temp/RH probe is not attached
2
4
Not used
4. Alarm sizes will be null (,,) if alarms are
disabled.
3
8
Not used
5. Status bits combinations are possible. For
example, 17 (00010001B) = Low Battery and
Size 1 alarm.
4
16
Low battery
5
32
Sensor error
6
64
Not used
7
128
Not used
7.5.
Printer Format
The printer output format is 9 lines by 26 characters (including T/RH if attached).
8.
Maintenance
Due to the nature of the instrument, there are no customer serviceable components in
the GT-526S. The case of the GT-526S should never be removed or opened for any
reason.
Opening or removing the case of the GT-526S voids the warranty and
may result in exposure to laser radiation, which can cause eye injury.
8.1.
Service Schedule
Although there are no customer serviceable components in the GT-526S, there are
service items which ensure the proper operation of the instrument. Table 1 shows the
service schedule for the GT-526S.
Time Period
Item
Manual Section
Weekly
Zero Count Test
Monthly
Flow Rate Test
Yearly
Annual Calibration
Table 1 Service Schedule
8.2.
Zero Count Test
Air leaks or debris in the particle sensor can cause false counts which may result in
significant count errors when sampling clean environments. Perform the following zero
count test weekly to ensure proper operation:
1. Attach zero count filter to the inlet nozzle (PN G3111).
2. Configure the unit as follows: Samples = SINGLE, Sample Time = 60 seconds,
Volume = Total Count (TC)
3. Start and complete a sample.
4. The smallest particle size should have a count <= 1.
